WEATHER 2/13/19

DAILY FIRE WEATHER & FIRE INFO
To: ALL UNITS From:
EMAIL: pdupree@bdcecs.org
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AFTER 2200 HRS CALL (760)-244-9790

RADIO:(HAM) KG6ZHW
COUNTY F.D RADIO: #733784 CALL SIGN: COM-330

Date: 2/13/19
SKYWARN: NORMAL
NETS ON WED NIGHT @1900 HEAPS PK./WX
SKYWARN NET TUESDAY @ 1900 HRS TABLE Mt.
BRIEFS TABLE MT. ON SUN @ 1800 HRS
DAYS NO R.F. @ STA.:03

National Preparedness Level (PL 1 )

Southern California Area
Preparedness Level: (PL 2 )

Northern California Area
Preparedness Level (PL 1 )

SYNOP:
A storm currently off the Northern California Coast will move inland Thursday afternoon. Deep subtropical moisture will move into the region ahead of this storm through Thursday afternoon. There will be a Pacific trough over the West Coast Thursday night through this weekend. The West Coast will be on the back side of this trough early next week.
Rain currently falling over Central California will spread into Southern California this afternoon and be heavy at times through Thursday afternoon.
· Most foothill and mountain locations will receive between 3 and 6 inches of rainfall and most coastal and valley locations will receive between 1 and 3 inches of rainfall through Thursday afternoon. Some Sierra locations will receive up to 10 inches of rainfall.
The snow level will be above 8,000 feet through Thursday afternoon.
Southerly winds of 20 to 40 mph with gusts to 60 mph will surface across the wind prone mountains and deserts through Thursday morning.
Temperatures will be around 5 degrees below normal through Thursday, with upper 30s and 40s across the mountains and mid 50s to mid 60s in the valleys.
Scattered showers with light rainfall totals will move across the area Thursday evening through Sunday night.
The snow level will lower to around 5,000 feet by Thursday night and to around 3,000 feet by Saturday night.
·Westerly winds of 20 to 40 mph with gusts to 60 mph will surface across the wind prone mountain and desert areas Thursday afternoon through Sunday night. Temperatures will cool to 10 to 20 degrees below normal Friday through this weekend.
Dry conditions along with a slow warming trend will occur early next week.
.NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)
Moisture associated with our next system will continue to stream eastward across the region through Thursday night. It will produce heavy snow above 8500 feet and valley rain.
Gusty southwest winds will also occur in the mountains today and across more of the area Thursday. Additional storm systems over the weekend will keep the region cooler than normal along with a threat of rain and snow showers.

WEATHER IMPACTS
Today-Thursday Night
Minor roadway ponding, with flowing water in sensitive drainages – Owens Valley.
Increased avalanche danger in the eastern Sierra.
Road closures or chain restrictions due to snowfall.
Localized rockslides possible in canyons and steep hillsides – San Bernardino, Mohave.
Water flowing in normally dry washes, flood channels, and low water crossings – San Bernardino,
Mohave.
Roads may be impassable due to flooding or flood damage – San Bernardino, Mohave.
Water may enter and damage structures and homes – San Bernardino, Mohave.
LOW Confidence
Temporary fences and structures may be damaged or destroyed.
Travel delays at McCarran International Airport due to strong winds/rain/ceilings.
Heavy rain and warm temps on snowpack may result in increased runoff and flooding for the lower
eastern Sierra slopes and Owens Valley.

FORECAST DETAILS
Today-Thursday Night
Timing
Sierra
Peaking WED PM – THU NOON, decreasing THU PM.
Rest of the area
Starting WED PM, peaking THU AM – THU PM, decreasing late THU PM into FRI.

Snow Levels
Sierra
Starting briefly around 5500′, rising to 8500-9000′ WED PM – THU, falling to 6000′ late THU PM
Spring Mountains, Mohave
Starting around 5000′ WED, increasing to around 8500-9000′; WED PM – THU
Lincoln
Starting around 5000′ WED, increasing to 8000′-8500′ THU

Snow Totals
Eastern Sierra Slopes HIGH Confidence
4-12″ between 6000′-8000′
12-24″ between 8000′-10000′
36″+ near ridgetops

Spring Mountains LOW Confidence
T-3″ 7000′-8000′
6-12″ between 8000′-9000′
12″+ above near ridge top
Lincoln/Nye/Esmeralda LOW Confidence
Trace-2″ low elevation
3-6″ in the Mountains

Rain Totals: Low Confidence
Owens Valley: 0.75-1.5″

Clark/southern Nye/Lincoln/Esmeralda: 0.25-0.50″, locally 2+” Spring Mtns.

San Bernadino/Mohave:0.5-1.0″, locally well above 1

DAILY FUELS/FIRE POTENTIAL:
No fire activity is anticipated across the area through the forecast period

SANTA ANA WILDFIRE THREAT INDEX: TODAY: GREY-NO RATING

———————————————————————
APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):
FLASH FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY EVENING
.TODAY… Sky/weather………Mostly cloudy. Chance of rain in the afternoon.
Max temperature…..54 to 64. 24 HR TREND……Up 3 degrees.
Min humidity……..20 to 30 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Winds south 13 to 23 mph with gusts to 45 mph.
CWR (>0.10 IN)……23 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly cloudy. Rain likely.
Min temperature…..43 to 48. 24 HR TREND……Up 9 degrees.
Max humidity……..90 to 100 percent. 24 HR TREND……Up 55 percent.
WIND (20 FT)……..Winds south 6 to 16 mph with gusts to 30 mph.
CWR (>0.10 IN)……57 percent. LAL……………..1.

.THURSDAY… Sky/weather………Mostly cloudy. Rain.
Max temperature…..54 to 59. 24 HR TREND……Up 2 degrees.
Min humidity……..65 to 75 percent. 24 HR TREND……Up 45 percent.
WIND (20 FT)……..Winds southwest 11 to 21 mph with gusts to 40 mph.
CWR (>0.10 IN)……94 percent. LAL……………..1.

WRIGHTWOOD:
HIGH WIND WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY EVENING
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
Wednesday
A chance of snow before 10am, then rain. Areas of fog. High near 44. Windy, with a southwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain. Areas of fog. Low around 39. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Rain, mainly before 4pm. The rain could be heavy at times. Areas of fog. High near 46. Windy, with a southwest wind 30 to 35 mph increasing to 40 to 45 mph in the morning. Winds could gust as high as 65 mph. Chance of precipitation is 90%. New precipitation amounts between 3 and 4 inches possible.
Thursday Night
A chance of rain before 10pm, then a slight chance of rain and snow. Areas of fog. Otherwise, mostly cloudy, with a low around 34. Windy, with a southwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

BIG PINES / WEST WRIGHTWOOD AREA
WIND ADVISORY IN EFFECT FROM 4 AM WEDNESDAY TO 3 PM PST THURSDAY
Wednesday
Snow likely before 10am, then rain. High near 43. Windy, with a southeast wind 30 to 35 mph becoming south southwest in the morning. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain. Low around 38. Windy, with a south wind around 30 mph, with gusts as high as 50 mph. Chance of precipitation is 90%.
Thursday
Rain. High near 47. Windy, with a south southwest wind 25 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 90%.
Thursday Night
A chance of rain showers before 10pm, then a slight chance of snow showers. Mostly cloudy, with a low around 28. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

PHELAN:
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING…
Wednesday
Rain, mainly after 10am. High near 46. Windy, with a south wind 20 to 25 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 42. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 53. Breezy, with a southeast wind 10 to 15 mph becoming southwest 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts between 1 and 2 inches possible.
Thursday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 38. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.

TRONA:
Wednesday
Rain, mainly before 5pm. High near 56. Southwest wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Wednesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 46. West southwest wind 7 to 9 mph. Chance of precipitation is 60%.
Thursday
Rain likely, mainly before 4pm. Cloudy, with a high near 62. Breezy, with a south southwest wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 43. Southwest wind 13 to 15 mph, with gusts as high as 21 mph.

BARSTOW / DAGGETT / BAKER / FT. IRWIN (CAZ228):
.TODAY… * Sky/Weather………Mostly cloudy. Scattered rain showers.
* Max temperature: * Valley floor….63-68. * 24 hr trend…..On average up 4 degrees.
* Min humidity: * Valley floor….14-24 percent. * 24 hr trend…..On average up 5 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind 10 to 15 mph.
* 10000 ft msl….Southwest 30 to 40 mph increasing to 40 to 50 mph in the afternoon.
* CWR (>= 0.10 in)….10 percent. * LAL……………..1.
* Haines Index……..2.

.TONIGHT… * Sky/Weather………Mostly cloudy. Rain.
* Min temperature: * Valley floor….41-46. * 24 hr trend…..On average up 4 degrees.
* Max humidity: * Valley floor….79-84 percent. * 24 hr trend…..On average up 45 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind 10 to 15 mph with gusts to around 25 mph.
* 10000 ft msl….West 45 to 55 mph.
* CWR (>= 0.10 in)….15 percent. * LAL……………..1.
* Haines Index……..2.

.THURSDAY… * Sky/Weather………Mostly cloudy. Rain.
* Max temperature: * Valley floor….57-62. * 24 hr trend…..On average down 6 degrees.
* Min humidity: * Valley floor….54-64 percent. * 24 hr trend…..On average up 40 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind 10 to 20 mph with gusts to around 35 mph.
* 10000 ft msl….West 55 to 65 mph becoming southwest and decreasing to 50 to 60 mph in the afternoon.
* CWR (>= 0.10 in)….85 percent increasing to 90 percent in the afternoon. * LAL………1.
* Haines Index……..2.

BAKER:
Wednesday
A slight chance of rain between 1pm and 3pm. Mostly cloudy, with a high near 63. South wind 3 to 5 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of rain before 7pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 41. South wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
A 50 percent chance of rain. Cloudy, with a high near 63. South wind 7 to 16 mph, with gusts as high as 23 mph.
Thursday Night
A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 41. South southwest wind around 9 mph.

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS:
.TODAY… * Sky/Weather………Mostly cloudy. Numerous rain showers and snow showers.
* Max temperature: * Valley floor….52-57. * 7000 feet…….42-47. * 24 hr trend…..On average up 2 degrees.
* Min humidity: * Valley floor….39-49 percent. * 7000 feet…….48-58 percent. * 24 hr trend…..On average up 30 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 15 mph.
* Upper slopes….Southwest winds 15 to 25 mph with gusts to around 45 mph.
* 10000 ft msl….Southwest 30 to 40 mph increasing to 50 to 60 mph in the afternoon.
* CWR (>= 0.10 in)….85 percent. * LAL……………..1.
* Haines Index……..3.

.TONIGHT… * Sky/Weather………Mostly cloudy. Numerous rain showers and snow showers.
* Min temperature: * Valley floor….40-45. * 7000 feet…….19-24. * 24 hr trend…..On average up 7 degrees.
* Max humidity: * Valley floor….94-99 percent. * 7000 feet…87-92 percent. * 24 hr trend…..On average up 15 percent.
* Wind (slope/valley=20 ft, 10 min avg): * Slope/valley….South winds 10 to 15 mph.
* Upper slopes….Southwest winds 15 to 25 mph with gusts to around 45 mph.
* 10000 ft msl….Southwest 35 to 45 mph.
* CWR (>= 0.10 in)….75 percent increasing to 80 percent after midnight. * LAL……………..1.
* Haines Index……..3.

.THURSDAY… * Sky/Weather………Mostly cloudy. Rain and snow.
* Max temperature: * Valley floor….53-58. * 7000 feet…….42-47. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….42-52 percent. * 7000 feet…56-66 percent. * 24 hr trend…..On average up 6 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 15 mph with gusts to around 35 mph.
* Upper slopes….Windy. Southwest winds 20 to 30 mph with gusts to around 60 mph.
* 10000 ft msl….Southwest 35 to 45 mph increasing to 50 to 60 mph in the afternoon.
* CWR (>= 0.10 in)….90 percent. * LAL……………..1.
* Haines Index……..3.

INLAND EMPIRE (CAZ248):
TODAY… Sky/weather…Partly cloudy…becoming mostly cloudy. Slight chance of rain in the morning, then rain likely in the afternoon.
Max temperature…..55 to 61. 24 HR TREND……Down 9 degrees.
Min humidity……..15 to 25 percent. 24 HR TREND……Up 15 percent.
WIND (20 FT)……..Winds south 6 to 8 mph. Gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……56 percent. LAL……………..1.

.TONIGHT… Sky/weather………Cloudy. Rain.
Min temperature…..46 to 51. 24 HR TREND……Up 4 degrees.
Max humidity……..100 percent. 24 HR TREND……Up 60 percent.
WIND (20 FT)……..Winds east 6 to 9 mph becoming south 6 to 11 mph after midnight. Gusts to 20 mph.
CWR (>0.10 IN)……98 percent. LAL……………..1.

.THURSDAY… Sky/weather………Cloudy. Rain.
Max temperature…..55 to 61. 24 HR TREND……Little change.
Min humidity……..85 to 95 percent. 24 HR TREND……Up 60 percent.
WIND (20 FT)……..Winds southwest 6 to 13 mph with gusts to 30 mph.
CWR (>0.10 IN)……99 percent. LAL……………..1.

DEVORE:
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
Wednesday
Rain, mainly after 10am. The rain could be heavy at times. High near 57. Southwest wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. The rain could be heavy at times. Low around 48. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Rain, mainly before 4pm. The rain could be heavy at times. High near 58. Breezy, with a south wind 5 to 10 mph becoming southwest 15 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Thursday Night
A chance of rain. Cloudy, with a low around 46. Southwest wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

CHINO HILLS:
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
Wednesday
Rain, mainly after 10am. High near 56. Light northeast wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. The rain could be heavy at times. Low around 49. East wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday
Rain, mainly before 4pm. The rain could be heavy at times. High near 60. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Thursday Night
A chance of rain, mainly before 10pm. Cloudy, with a low around 47. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

COLTON:
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
Wednesday
Rain, mainly after 10am. High near 60. Calm wind becoming southwest around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. The rain could be heavy at times. Low around 50. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain. The rain could be heavy at times. High near 62. South wind 10 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
A chance of rain. Cloudy, with a low around 49. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

SAN BERNARDINO N.F. (CAZ255/CAZ256):
HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 10 PM PST THURSDAY
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
.TODAY… Sky/weather………Partly cloudy…becoming mostly cloudy. Slight chance of rain and snow in the morning, then rain likely in the afternoon.
Max temperature…..41 to 48 above 6000 feet to 47 to 57 below 6000 feet. 24 HR TREND……Up 5 degrees.
Min humidity……..10 to 20 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..
SLOPES………..Winds southwest 13 to 23 mph with gusts to 45 mph.
RIDGETOP………Winds southwest 19 to 29 mph with gusts to 55 mph.
CWR (>0.10 IN)……50 percent. LAL……………..1.

.TONIGHT… Sky/weather………Cloudy. Areas of fog. Rain.
Min temperature…..30 to 40 above 6000 feet to 36 to 44 below 6000 feet. 24 HR TREND……Up 6 degrees.
Max humidity……..85 to 95 percent on desert slopes to 90 to 100 percent on coastal slopes.
24 HR TREND……Up 70 percent.
WIND (20 FT)……..
SLOPES………..Winds south 10 to 20 mph with gusts to 40 mph.
RIDGETOP………Winds southwest 20 to 30 mph with gusts to 55 mph.
CWR (>0.10 IN)……94 percent. LAL……………..1.

.THURSDAY… Sky/weather………Cloudy. Areas of fog. Rain.
Max temperature…..39 to 46 above 6000 feet to 45 to 53 below 6000 feet. 24 HR TREND……Down 4 degrees.
Min humidity……..60 to 70 percent on desert slopes to 75 to 85 percent on coastal slopes.
24 HR TREND……Up 80 percent.
WIND (20 FT)……..
SLOPES………..Winds southwest 14 to 24 mph with gusts to 45 mph.
RIDGETOP………Winds southwest 24 to 34 mph with gusts to 65 mph.
CWR (>0.10 IN)……100 percent. LAL……………..1.

LAKE ARROWHEAD SCHOOL- AREA:
HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 10 PM PST THURSDAY
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
Wednesday
A chance of rain and snow before 10am, then rain. Areas of fog. High near 45. Breezy, with a south wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
Rain. The rain could be heavy at times. Areas of fog. Low around 39. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Rain, mainly before 4pm. The rain could be heavy at times. Areas of fog. High near 49. Windy, with a south wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between 3 and 4 inches possible.
Thursday Night
A chance of rain, mainly before 10pm. Areas of fog. Otherwise, cloudy, with a low around 33. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New precipitation amounts between 1 and 2 inches possible

BIG BEAR SCHOOL AREA:
HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 10 PM PST THURSDAY
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
Wednesday
A chance of snow before 10am, then rain. Areas of fog. High near 42. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain. Areas of fog. Low around 34. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Rain, mainly before 4pm. The rain could be heavy at times. Areas of fog. High near 44. Windy, with a southwest wind 30 to 35 mph increasing to 40 to 45 mph in the afternoon. Winds could gust as high as 65 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Thursday Night
A chance of rain before 10pm, then a slight chance of snow. Areas of fog. Otherwise, mostly cloudy, with a low around 26. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

BANNING PASS:
.TODAY… Sky/weather………Partly cloudy…becoming mostly cloudy. Slight chance of rain in the afternoon.
Max temperature…..64 to 69. 24 HR TREND……Up 4 degrees.
Min humidity……..15 to 20 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Winds southeast 6 to 11 mph. Gusts to 25 mph in the afternoon.
CWR (>0.10 IN)……7 percent. LAL……………..1.

.TONIGHT… Sky/weather………Cloudy. Chance of rain in the evening, then rain likely after midnight.
Min temperature…..50 to 55. 24 HR TREND……Up 8 degrees.
Max humidity……..80 to 90 percent. 24 HR TREND……Up 65 percent.
WIND (20 FT)……..Winds northwest 6 to 10 mph with gusts to 20 mph becoming southeast around 6 mph after midnight.
CWR (>0.10 IN)……54 percent. LAL……………..1.

.THURSDAY… Sky/weather………Cloudy. Rain.
Max temperature…..Around 61. 24 HR TREND……Down 7 degrees.
Min humidity……..70 to 80 percent. 24 HR TREND……Up 55 percent.
WIND (20 FT)……..Winds southeast 6 to 10 mph with gusts to 20 mph.
CWR (>0.10 IN)……92 percent. LAL……………..1.

JOSHUA TREE AREA (CAZ261):
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
.TODAY… * Sky/weather…………………Cloudy. Chance of showers .
* Max Temperature……………..51-64. * 24 hr trend………………3 degrees warmer.
* Min Humidity………………..17-24 pct. * 24 hr trend………………4 pct wetter.
* Winds – 20 foot…Slope/Valley..South 10 to 20 mph.
* Winds…10000 FT MSL…………Southwest 25 to 35 mph in the morning becoming 35 to 45 mph in the afternoon.
* Chance of Precip…………….20 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.
* Haines High Level Index………3 or very low potential for large plume dominated fire growth.

.TONIGHT… * Sky/weather…………………Mostly cloudy. Chance of showers.
* Min Temperature……………..42-49. * 24 hr trend………………4 degrees warmer.
* Max Humidity………………..80-96 pct. * 24 hr trend………………57 pct wetter.
* Winds – 20 foot…Slope/Valley..Southwest 10 to 20 mph.
* Winds…10000 FT MSL…………Southwest 45 to 55 mph.
* Chance of Precip…………….50 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.

.THURSDAY… * Sky/weather…………………Cloudy. Showers.
* Max Temperature……………..50-59. * 24 hr trend………………3 degrees cooler.
* Min Humidity………………..63-80 pct. * 24 hr trend………………51 pct wetter.
* Winds – 20 foot…Slope/Valley..South 10 to 20 mph.
* Winds…10000 FT MSL…………Southwest 45 to 55 mph in the morning becoming 60 to 70 mph in the afternoon.
* Chance of Precip…………….80 percent. * CWR (>= 0.10 IN)…………….80 percent. * LAL………………………..1.
* Haines High Level Index………2 or very low potential for large plume dominated fire growth.

NEEDLES, RIVER BAT. (CAZ229):
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
TODAY… * Sky/Weather………Mostly cloudy with isolated showers.
* Max temperature: * Valley floor….65-70. * 24 hr trend…..On average up 3 degrees.
* Min humidity: * Valley floor….13-23 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southeast wind up to 10 mph shifting to the south in the afternoon.
* 10000 ft msl….Southwest 30 to 40 mph increasing to 35 to 45 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1.
* Haines Index……..2.
* Mixing height…….4000 ft agl.
* Transport winds…..South 10 to 15 knots.
* Ventilation………Very good.

.TONIGHT… * Sky/Weather………Mostly cloudy. Rain likely.
* Min temperature: * Valley floor….46-51. * 24 hr trend…..On average up 7 degrees.
* Max humidity: * Valley floor….64-69 percent. * 24 hr trend…..On average up 23 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southeast wind 10 to 15 mph.
* 10000 ft msl….West 45 to 55 mph becoming 45 to 50 mph after midnight.
* CWR (>= 0.10 in)….5 percent. * LAL……………..1.
* Haines Index……..2.

.THURSDAY… * Sky/Weather………Cloudy. Rain.
* Max temperature: * Valley floor….57-62. * 24 hr trend…..On average down 8 degrees.
* Min humidity: * Valley floor….39-49 percent. * 24 hr trend…..On average up 26 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southeast wind 10 to 15 mph.
* 10000 ft msl….West 50 to 60 mph becoming southwest and decreasing to 40 to 50 mph in the afternoon.
* CWR (>= 0.10 in)….80 percent increasing to 90 percent in the afternoon. * LAL……………..1.
* Haines Index……..2.
* Mixing height…….3700 ft agl.
* Transport winds…..South 10 to 20 knots increasing to 20 to 25 knots in the afternoon.
* Ventilation………Very good.

STATELINE – CLARK COUNTY BORDER:
TODAY… * Sky/Weather………Mostly cloudy with isolated showers.
* Max temperature: * 4000 feet…….56-61. * 24 hr trend…..On average up 3 degrees.
* Min humidity: * 4000 feet…….18-28 percent. * 24 hr trend…..On average up 3 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds up to 10 mph.
* 10000 ft msl….Southwest 40 to 50 mph increasing to 45 to 55 mph in the afternoon.
* CWR (>= 0.10 in)….5 percent. * LAL……………..1.
* Haines Index……..2.
* Mixing height…….4900 ft agl.
* Transport winds…..Light winds becoming south 10 to 15 knots in the afternoon.
* Ventilation………Very good.

.TONIGHT… * Sky/Weather………Mostly cloudy. Scattered rain showers.
* Min temperature: * 4000 feet…….38-43. * 24 hr trend…..On average up 6 degrees.
* Max humidity: * 4000 feet…….76-81 percent. * 24 hr trend…..On average up 29 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Southeast winds 10 to 15 mph.
* 10000 ft msl….West 50 to 60 mph becoming southwest and decreasing to 45 to 50 mph after midnight.
* CWR (>= 0.10 in)….5 percent. * LAL……………..1.
* Haines Index……..2.

.THURSDAY… * Sky/Weather………Mostly cloudy. Rain.
* Max temperature: * 4000 feet…….53-58. * 24 hr trend…..On average down 3 degrees.
* Min humidity: * 4000 feet…….55-65 percent. * 24 hr trend…..On average up 37 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 15 mph with gusts to around 30 mph.
* 10000 ft msl….Southwest 50 to 60 mph.
* CWR (>= 0.10 in)….65 percent increasing to 90 percent in the afternoon. * LAL……………..1.
* Haines Index……..2.
* Mixing height…….2700 ft agl.
* Transport winds…..Southeast around 10 knots shifting to the south 15 to 20 knots in the afternoon.
* Ventilation………Good.

*************************** OUT OF COUNTY ********************************
LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ247/CAZ249):
AND
LOS ANGELES COUNTY SAN FERNANDO VALLEY:
.WEDNESDAY… Sky/weather………Rain developing.
Max temperature…..51-60. 24 hr trend……Down 7.
Min humidity……..45-65 percent. 24 hr trend……Up 30-50.
20-foot winds…….Southeast 15-25 mph with local gusts to 35 mph.
Marine layer……..None.
LAL……………..1. CWR (>0.10 IN)……100 percent.

.WEDNESDAY NIGHT… Sky/weather………Periods of rain.
Min temperature…..46-51.
Max humidity……..80-100 percent.
20-foot winds…….Southeast 10-20 mph with local gusts to 30 mph.
LAL……………..1. CWR (>0.10 IN)……100 percent.

.THURSDAY… Sky/weather………Periods of rain.
Max temperature…..58-62.
Min humidity……..70-90 percent.
20-foot winds…….South 6-12 mph becoming 10-20 mph with local gusts to 30 mph.
LAL……………..1. CWR (>0.10 IN)……90 percent.

SANTA CLARITA VALLEY:
WEDNESDAY… Sky/weather………Rain developing.
Max temperature…..51-60. 24 hr trend……Down 7.
Min humidity……..45-65 percent. 24 hr trend……Up 30-50.
20-foot winds…….Southeast 15-25 mph with local gusts to 35 mph.
Marine layer……..None.
LAL……………..1. CWR (>0.10 IN)……100 percent.

.WEDNESDAY NIGHT… Sky/weather………Periods of rain.
Min temperature…..46-51.
Max humidity……..80-100 percent.
20-foot winds…….Southeast 10-20 mph with local gusts to 30 mph.
LAL……………..1. CWR (>0.10 IN)……100 percent.

.THURSDAY… Sky/weather………Periods of rain.
Max temperature…..58-62.
Min humidity……..70-90 percent.
20-foot winds…….South 6-12 mph becoming 10-20 mph with local gusts to 30 mph.
LAL……………..1. CWR (>0.10 IN)……90 percent.

SANTA MONICA MOUNTAINS RECREATIONAL AREA:
.WEDNESDAY… Sky/weather………Rain developing.
Max temperature…..52-57. 24 hr trend……Down 4-8.
Min humidity……..45-65 percent. 24 hr trend……Up 30-50.
20-foot winds…….
Valleys/lwr slopes…Southeast 15-25 mph with gusts to 35 mph.
Ridges/upr slopes….East 15-25 mph with gusts to 35 mph becoming southeast 20-35 mph with gusts to 55 mph by the afternoon.
Marine layer……..None.
LAL……………..1. CWR (>0.10 IN)……100 percent.

.WEDNESDAY NIGHT… Sky/weather………Periods of rain.
Min temperature…..44-52.
Max humidity……..80-100 percent.
20-foot winds…….
Valleys/lwr slopes…Southeast 15-25 mph with gusts to 35 mph.
Ridges/upr slopes….Southeast 20-35 mph with gusts to 55 mph.
LAL……………..1. CWR (>0.10 IN)……100 percent.

.THURSDAY… Sky/weather………Periods of rain.
Max temperature…..58-62.
Min humidity……..80-100 percent.
20-foot winds…….
Valleys/lwr slopes…South 6-12 mph becoming southwest 15-25 mph with local canyon gusts to 40 mph by the afternoon.
Ridges/upr slopes….South 6-12 mph becoming southwest 15-25 mph by the afternoon.
LAL……………..1. CWR (>0.10 IN)……90 percent.

ANGELES NATIONAL FOREST (CAZ253):
WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY
WEDNESDAY… Sky/weather………Rain developing.
Max temperature…..48-54 low elevations to 40-48 higher elevations. 24 hr trend……Down 3-5.
Min humidity……..60-80 percent except 25-40 percent higher peaks and warmer valleys. 24 hr trend……Up 30-50.
20-foot winds…….
Valleys/lwr slopes…South 25-40 mph with gusts to 65 mph.
Ridges/upr slopes….South 30-45 mph with gusts to 70 mph.
Marine layer……..None.
LAL……………..1. CWR (>0.10 IN)……100 percent.

.WEDNESDAY NIGHT… Sky/weather………Periods of rain.
Min temperature…..42-48 low elevations to 34-40 colder valleys and peaks.
Max humidity……..80-100 percent.
20-foot winds…….
Valleys/lwr slopes…South 20-30 mph with gusts to 45 mph.
Ridges/upr slopes….South 25-40 mph with gusts to 55 mph.
LAL……………..1. CWR (>0.10 IN)……90 percent.

.THURSDAY… Sky/weather………Periods of rain.
Max temperature…..51-57 low elevations to 44-51 higher elevations.
Min humidity……..70-90 percent.
20-foot winds…….
Valleys/lwr slopes…Southwest 20-30 mph with gusts to 45 mph.
Ridges/upr slopes….Southwest 25-40 mph with gusts to 55 mph.
LAL……………..1. CWR (>0.10 IN)……90 percent.

ANTELOPE VALLEY (CAZ259):
.WEDNESDAY… Sky/weather………Rain developing.
Max temperature…..45-53. 24 hr trend……Down 3-5.
Min humidity……..35-55 percent except 55-65 percent in the hills. 24 hr trend……Up 15-25.
20-foot winds…….Southeast 15-25 mph with gusts to 40 mph becoming south 10-20 mph with local gusts to 30 mph in the afternoon.
Marine layer……..None.
LAL……………..1. CWR (>0.10 IN)……90 percent.

.WEDNESDAY NIGHT… Sky/weather………Periods of rain.
Min temperature…..39-45.
Max humidity……..80-100 percent.
20-foot winds…….South 15-25 mph with gusts to 35 mph. Isolated gusts to 45 mph near Lake Palmdale.
LAL……………..1. CWR (>0.10 IN)……70 percent.

.THURSDAY… Sky/weather………Periods of rain.
Max temperature…..52-59.
Min humidity……..65-85 percent.
20-foot winds…….South 10-20 mph with gusts to 30 mph becoming southwest 20-30 mph with gusts to 40 mph by the afternoon. Isolated gusts to 50 mph near Lake Palmdale.
LAL……………..1. CWR (>0.10 IN)……70 percent.

KERN CO. DESERTS (CAZ298):
.WEDNESDAY… Sky/weather………Cloudy. Rain.
Max Temperature…..48-53. 24 HR Trend……Little change.
Min Humidity……..57-67 percent. 24 HR Trend……Up 26-42 percent.
20-Foot Winds…….Southwest 10-20 mph.
LAL……………..1.
Ventilation………Good.
Mixing height…….2200 ft AGL.
Transport Winds…..Southwest 20 to 25 mph.
Chc Wetting Rain….60 percent.

.WEDNESDAY NIGHT… Sky/weather………Cloudy. Rain likely.
Min Temperature…..40-45. 24 HR Trend……Up 2-8 degrees.
Max Humidity……..82-92 percent. 24 HR Trend……Up 25-41 percent.
20-Foot Winds…….South 8-15 mph.
LAL……………..1. Chc Wetting Rain….50 percent.

.THURSDAY… Sky/weather………Mostly cloudy. Showers likely in the morning, then chance of showers in the afternoon.
Max Temperature…..54-59. 24 HR Trend……Up 3-9 degrees.
Min Humidity……..65-75 percent. 24 HR Trend……Up 7-17 percent.
20-Foot Winds…….Southwest 10-18 mph.
LAL……………..1.
Ventilation………Poor.
Mixing height…….MISSING.
Transport Winds…..
Chc Wetting Rain….40 percent.

La Jolla CA
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING
Wednesday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 62. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 55. Southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. The rain could be heavy at times. High near 63. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
A chance of rain. Cloudy, with a low around 54. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

Poway CA
FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING

Wednesday
Rain, mainly after 10am. High near 64. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. The rain could be heavy at times. Low around 52. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain, mainly before 4pm. The rain could be heavy at times. High near 63. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
A chance of rain. Cloudy, with a low around 49. West wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible

CEDAR CITY Ut.
DAYS TWO THROUGH SEVEN…Wednesday through Monday

A series of storms will impact Utah through the weekend. A warm system will bring rising snow levels to the area Thursday into Friday. Significant snow accumulations are expected for the northern and central Utah mountains.

A period of heavy rainfall is expected across southwest and south central Utah Thursday. Slot canyons and other small waterways may run high during this time but widespread flooding is not expected.

A cold system will bring a strong cold front across the state Friday. Snow levels will fall to valley floors. Significant snow accumulations are possible for northern and western Utah valleys and most mountain areas.

Wednesday
A chance of rain and snow after 11am. Cloudy, with a high near 44. South wind around 15 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain and snow before 11pm, then a chance of snow. Cloudy, with a low around 33. South wind 14 to 16 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
Rain. High near 46. South wind 11 to 13 mph. Chance of precipitation is 80%.
Thursday Night
Rain, mainly before 11pm. Low around 32. South southwest wind 14 to 16 mph. Chance of precipitation is 80%.

============================================================
THIS DAY IN WEATHER HISTORY:
2003: A storm off the coast tapped subtropical moisture and pulled it northward over Southern California from 2/11 to 2/14. Rainfall totals included: 10.15 inches at Forest Falls, 9.75 inches in Lytle Creek, 8.47 inches in Lake Arrowhead, 7.60 inches at Santiago Peak, 6.86 inches in Mira Loma, 5.15 inches in Wrightwood, 3.95 inches in Hesperia, 3.87 inches at Lake Elsinore, 3 inches at Lindbergh Field. Local flooding resulted. On this day a man drowned when he attempted wade across the rain-swollen Tijuana River.

2001: A strong winter storm that started on 2/11 and ended on this day brought two to five inches of rain to Orange County and the western Inland Empire. One to two inches fell over the rest of the lowlands. Extensive urban flooding and mud slides resulted. Trees and power lines were knocked down. Over a week of heavy snow that started on 2/6 and ended on 2/14 continued on this day. The snowfall was called “most in a decade.” Five feet fell at Blue Jay and Mountain High Resort, two feet at Snow Summit, and five to 12 inches at Apple Valley. Mountain High reported thirty inches of new snow on this day. The roof of an ice rink caved in at Blue Jay. On this day a thunderstorm wind gust hit 89 mph in eastern Orange and a funnel cloud was observed in Palm Desert.

1997: Strong Santa Ana winds peaked with an 85 mph gust in Fremont Canyon, numerous downed trees and power lines were reported.

1992: A series of many intense storms started on 2/5 and ended on 2/16. The storms brought a total of 20+ inches of precipitation to the mountains and eight to 16+ inches to lower elevations. Two were killed in an avalanche at Mt. Baldy. Flash flooding, mud slides, and road closures also occurred.

1980: Six storms hit Southern California beginning on this day. As of 2/21, 12.75 inches of rain measured in LA. 30 were killed in widespread floods and mud slides. Roads and hundreds of homes destroyed or damaged. Post-fire flooding overwhelmed a basin below Harrison Canyon in north San Bernardino four times. Forty homes were damaged or destroyed there. Mission Valley became completely inundated between Friars Rd. and I-8. Large waves hit the coast during this stormy period, causing coastal flooding at Mission Beach, including water over the boardwalk and into houses. This day marked the start of nine consecutive days (the most on record) of measurable precipitation in San Diego, Riverside and Palm Springs which ended on 2/21. This also occurred on 2/26-3/6/1983 and 2/5-2/13/1978 in San Diego and 1/19-1/27/1969 in Riverside. This day also marked the start of ten consecutive days (the most on record) of measurable precipitation in Borrego Springs, which ended on 2/22.

1978: This day was the end of nine consecutive days (the most on record) of measurable precipitation in San Diego which started on 2/5. This also occurred on 2/26-3/6/1983 and 2/13-2/21/1980. Lightning struck numerous power lines, knocking out power for 20,000 San Diegans.

1973: It snowed 12 inches at Palomar Mountain, the greatest daily snowfall on record for February. This also occurred on 2/27/2001 and 2/19/1962.

1971: It was 77° at Palomar Mountain, the highest temperature on record for February. This also occurred on 2/21/1972.

1948: It was 25° in Santa Ana, the lowest temperature on record for February. This also occurred on 2/14/1949.

1927: Continual rain that started on 2/11 for six days ended on 2/17. 25.38 inches fell at Henshaw Dam (14.18 inches on 2/16). 21.86 inches fell at Cuyamaca, 13.10 inches at El Capitan, 10.70 inches at El Cajon, 9.54 inches at La Mesa and 6.33 at San Diego. 8.30 inches fell in San Bernardino and 5.60 inches in Riverside. Heavy warm rains melted mountain snows. Unprecedented flow occurred on the Whitewater River. Floods washed out roads and bridges in Thousand Palms and Palm Desert. Levees were broken and Thermal was inundated. Several San Diego County dams overtopped, causing widespread flooding downstream. Bridges and roads were washed out in east San Diego metro area. Large areas of Long Beach, Fullerton and Anaheim were inundated.
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TROPICAL EAST PACIFIC REPORT:
There are no tropical cyclones in the Eastern North Pacific at this time.

The Eastern North Pacific hurricane season runs from May 15th through November 30th..

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CURRENT WEATHER @ HESP. @ 0655 Hrs. TEMP: 530 RH: 16% WIND: SW 16 G 22
4.84” RF @ HESP. STA.SINCE OCT. 1st/20 Yr Avg: 7.12” : MONTH: 1.42” YTD S/F: 0.00” /
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FIRES: UPDATED

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