WEATHER 2/17/20

DAILY FIRE WEATHER & FIRE INFO
ALL UNITS From:

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Date: 2/17/20

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.: 52

National Preparedness Level (PL 1 )

Southern California Area Preparedness Level: (PL 1 )

Northern California Area Preparedness Level (PL 1 )

GREEN = PL: 1 BLUE – PL:2 YELLOW = PL:3 ORANGE = PL:4 RED = PL: 5
=========================================================================
SYNOP: (NWS SAN DIEGO)
Onshore flow will prevail through today, keeping relative humidity elevated. Offshore flow will return Tuesday, as well as lower relative humidity. Locally gusty north winds are possible below passes and canyons and in the foothills. Periods of weak offshore flow will continue through Friday, resulting in mild and dry weather. Showers are possible late Friday through late Saturday.

NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)
Min RH values will continue to decrease today and through the week. Desert valleys in Inyo, Esmeralda, Nye, and Lincoln counties will likely see values fall to critical values with breezy winds of 10-20 mph. Thus, some periods of elevated fire weather conditions are possible for these locations. Similar conditions expected Tuesday as well with slightly higher winds gusts in the afternoon along the Colorado River Valley.

SPECIAL NOTES:
KEY POINTS

· Patchy dense fog is possible Monday morning over the coastal waters and in the coastal zones. Visibilities below 1 mi, locally ¼ or less, are possible.

· Weak Santa Ana winds are forecast for Tuesday.

· There is still a chance of light to locally moderate precipitation late Friday into early Sunday (2/21-2/23).

CONFIDENCE AND DETAILS

Dense Fog Possible Tonight and Monday Night

Mod

Confidence

Patchy dense fog creating hazardous travel conditions along the coast and over the coastal waters.

· What: Fog with visibility 1 mile or less, locally ¼ mi or less.

· Where: The coastal waters and locally up to 5 miles inland.

· When: Monday morning, and late Monday night through Tuesday morning.

Weak Santa Ana Tuesday

High

Confidence

Locally gusty northeast winds on Tuesday. No major impacts expected.

· What: Northeast winds with local gusts to around 35-40 mph in the wind prone areas.

· Where: Below the San Gorgonio and Cajon Passes in the Inland Empire, the Santa Ana Mountains, and the coastal slopes and foothills of the San Diego County mountains.

· When: Early Tuesday morning through Tuesday afternoon.

Precipitation Possible Friday and Saturday

Low

Confidence

Light to locally moderate rain and snow Friday into early Sunday may impact the evening commute Friday and travel in the mountains.

· What: Light to moderate showers.

· Where: Coasts/Valleys/Mountains. Snow above 5500-6000 ft.

· When: late Friday afternoon through early Sunday.

SUMMARY

A shallow marine layer will lead to patchy fog along the coast Monday night. The forecast continues to trend weaker and shorter duration for the Santa Ana winds, which will mainly occur on Tuesday and be limited to the usual wind prone areas. Otherwise fair weather will prevail through much of the week. A low pressure system digging off the west coast
and moving into Southern California may bring a period of light to moderate precipitation Friday afternoon into early Sunday along with breezy west winds in the mountains and deserts.

DAILY FUELS/FIRE POTENTIAL:

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

————————————————————————-
APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):
TODAY… Sky/weather………Mostly sunny.
Max temperature…..Around 62. 24 HR TREND……Down 5 degrees.
Min humidity……..15 to 20 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds west 6 to 8 mph becoming northeast 6 to 9 mph with gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..36 to 45. 24 HR TREND……Little change.
Max humidity……..25 to 35 percent. 24 HR TREND……Down 30 percent.
WIND (20 FT)……..Winds northeast around 6 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TUESDAY… Sky/weather………Mostly sunny.
Max temperature…..Around 61. 24 HR TREND……Little change.
Min humidity……..10 percent. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..Winds northeast around 6 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*WRIGHTWOOD:
Washington’s Birthday
Sunny, with a high near 54. North wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 33. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 51. Calm wind becoming northeast around 5 mph in the afternoon.

*BIG PINES / WEST WRIGHTWOOD AREA
Washington’s Birthday
Mostly sunny, with a high near 55. Wind chill values as low as 30 early. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 34. Northwest wind 10 to 15 mph becoming east 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 55. Wind chill values as low as 25 early. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

*PHELAN:
Washington’s Birthday
Sunny, with a high near 60. West wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 38. Calm wind becoming southwest around 5 mph.
Tuesday
Mostly sunny, with a high near 58. Calm wind becoming northeast around 5 mph in the morning.

TRONA (INDIAN WELLS) (CAZ298):
TODAY… Sky/weather………Sunny.
Max Temperature…..65-70. 24 HR Trend……Little change.
Min Humidity……..16-26 percent. 24 HR Trend……Down 2-8 percent.
20-Foot Winds…….North 3-13 mph in the early morning becoming east 3-7 mph by afternoon.
LAL……………..1.
Ventilation………Very good.
Mixing height…….7000 ft AGL.
Transport Winds…..North around 15 mph.
Chc Wetting Rain….0 percent.

.TONIGHT… Sky/weather………Mostly clear.
Min Temperature…..38-43. 24 HR Trend……Down 1-3 degrees.
Max Humidity……..35-45 percent. 24 HR Trend……Down 11-23 percent.
20-Foot Winds…….South 3-6 mph in the early evening shifting to the west.
LAL……………..1. Chc Wetting Rain….0 percent.

.TUESDAY… Sky/weather………Sunny.
Max Temperature…..63-68. 24 HR Trend……Down 1-3 degrees.
Min Humidity……..11-19 percent. 24 HR Trend……Down 3-9 percent.
20-Foot Winds…….Northeast 3-6 mph in the early morning shifting to the southeast 3-6 mph by afternoon.
LAL……………..1.
Ventilation………Fair.
Mixing height…….4200 ft AGL.
Transport Winds…..Northeast around 10 mph in the morning shifting to the south in the afternoon.
Chc Wetting Rain….0 percent.

BARSTOW / DAGGETT / BAKER / FT. IRWIN (CAZ228):
TODAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….72-77. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….13-19 percent. * 24 hr trend…..On average down 4 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….North wind 10 to 15 mph.
* 10000 ft msl….Northwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TONIGHT… * Sky/Weather………Partly cloudy.
* Min temperature: * Valley floor….38-43. * 24 hr trend…..On average down 3 degrees.
* Max humidity: * Valley floor….29-34 percent. * 24 hr trend…..On average down 22 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….North wind up to 10 mph.
* 10000 ft msl….North 10 to 15 mph becoming northwest after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.TUESDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….70-75. * 24 hr trend…..On average down 2 degrees.
* Min humidity: * Valley floor….10-13 percent. * 24 hr trend…..On average down 4 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Northeast wind up to 10 mph.
* 10000 ft msl….West around 10 mph increasing to 15 to 25 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

*BAKER:
Washington’s Birthday
Sunny, with a high near 74. North wind 6 to 15 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 41. North wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 70. Northeast wind 8 to 11 mph becoming north northwest in the afternoon.

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS (CAZ226):
TODAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….64-69. * 7000 feet…….50-55. * 24 hr trend…..On average down 3 degrees.
* Min humidity: * Valley floor….10-18 percent. *7000 feet….24-34 percent. *24 hr trend…..On average down 5 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds 10 to 15 mph.
* Upper slopes….North winds 10 to 15 mph.
* 10000 ft msl….North up to 10 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..3.

.TONIGHT… * Sky/Weather………Partly cloudy then becoming mostly cloudy.
* Min temperature: * Valley floor….31-36. * 7000 feet…….11-16. * 24 hr trend…..On average down 4 degrees.
* Max humidity: * Valley floor….43-48 percent. *7000 feet….48-53 percent. *24 hr trend…..On average down 14 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds up to 10 mph.
* Upper slopes….West winds 10 to 15 mph.
* 10000 ft msl….North around 10 mph becoming west up to 10 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.TUESDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….63-68. * 7000 feet…….50-55. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….11-16 percent. * 7000 feet…….22-32 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….East winds up to 10 mph shifting to the southeast around 10 mph in the afternoon.
* Upper slopes….Southwest winds 10 to 15 mph.
* 10000 ft msl….Southwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

KERN CO. DESERTS (CAZ299):
TODAY… Sky/weather………Sunny.
Max Temperature…..64-69. 24 HR Trend……Little change.
Min Humidity……..29-39 percent. 24 HR Trend……Down 2-4 percent.
20-Foot Winds…….Northeast 4-8 mph.
LAL……………..1.
Ventilation………Very good.
Mixing height…….7500 ft AGL.
Transport Winds…..Northeast 10 to 15 mph.
Chc Wetting Rain….0 percent.

.TONIGHT… Sky/weather………Partly cloudy.
Min Temperature…..38-43. 24 HR Trend……Little change.
Max Humidity……..44-54 percent. 24 HR Trend……Down 13-25 percent.
20-Foot Winds…….North 5-8 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

.TUESDAY… Sky/weather………Sunny.
Max Temperature…..63-68. 24 HR Trend……Little change.
Min Humidity……..15-25 percent. 24 HR Trend……Down 6-12 percent.
20-Foot Winds…….Northeast to east 3-7 mph.
LAL……………..1.
Ventilation………Fair.
Mixing height…….4400 ft AGL.
Transport Winds…..Northeast around 10 mph in the morning shifting to the southeast in the afternoon.
Chc Wetting Rain….0 percent.

INLAND EMPIRE (CAZ248):
TODAY… Sky/weather………Mostly sunny.
Max temperature…..70 to 76. 24 HR TREND……Up 1 degree.
Min humidity……..20 to 25 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Variable 2 to 4 mph becoming west around 6 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..41 to 51. 24 HR TREND……Up 3 degrees.
Max humidity……..60 to 70 percent. 24 HR TREND……Down 15 percent.
WIND (20 FT)……..Winds east6 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TUESDAY… Sky/weather………Mostly sunny.
Max temperature…..70 to 76. 24 HR TREND……Up 1 degree.
Min humidity……..15 to 20 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds north around 6 mph becoming west in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*DEVORE:
Washington’s Birthday
Sunny, with a high near 71. North wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 50. North wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 69. North wind 15 to 20 mph becoming light in the afternoon. Winds could gust as high as 30 mph.

*CHINO HILLS:
Washington’s Birthday
Sunny, with a high near 70. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 47. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 73. Light and variable wind becoming west 5 to 10 mph in the afternoon.

*COLTON:
Washington’s Birthday
Sunny, with a high near 76. South wind around 5 mph becoming calm.
Monday Night
Mostly clear, with a low around 48. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 74. Calm wind becoming north around 5 mph in the morning.

SAN BERNARDINO N.F. (CAZ255):
TODAY… Sky/weather………Mostly sunny.
Max temperature…..49 to 59 above 6000 feet to 66 below 6000 feet. 24 HR TREND……Down 3 degrees.
Min humidity……..25 to 30 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..
SLOPES………..Winds north 6 to 11 mph with gusts to 20 mph.
RIDGETOP………Winds north 6 to 11 mph with gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..23 to 33 above 6000 feet to 36 to 46 below 6000 feet. 24 HR TREND……Down 1 degree.
Max humidity….25 to 35 percent on desert slopes to 35 to 45 percent on coastal slopes. 24 HR TREND….Down 15 percent.
WIND (20 FT)……..
SLOPES………..Winds east 6 to 8 mph.
RIDGETOP………Winds north around 6 mph in the evening becoming variable 2 to 5 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TUESDAY… Sky/weather………Mostly sunny.
Max temperature…..49 to 59 above 6000 feet to 57 to 67 below 6000 feet. 24 HR TREND……Up 2 degrees.
Min humidity……..15 to 20 percent. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..
SLOPES………..Winds east around 6 mph in the morning becoming upslope 2 to 5 mph.
RIDGETOP………Variable 2 to 5 mph becoming southwest 6 to 8 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*LAKE ARROWHEAD SCHOOL- AREA:
Washington’s Birthday
Sunny, with a high near 54. North wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 34. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 52. North wind around 5 mph becoming calm in the afternoon.

*BIG BEAR SCHOOL AREA:
Washington’s Birthday
Sunny, with a high near 54. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 29. East wind around 5 mph.
Tuesday
Mostly sunny, with a high near 52. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

BANNING PASS (CAZ265):
TODAY… Sky/weather………Mostly sunny.
Max temperature…..75 to 80. 24 HR TREND……Up 5 degrees.
Min humidity……..20 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Variable 1 to 3 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..47 to 57. 24 HR TREND……Up 3 degrees.
Max humidity……..30 to 40 percent. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..Winds west around 6 mph becoming north after midnight.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TUESDAY… Sky/weather………Mostly sunny.
Max temperature…..75 to 80. 24 HR TREND……Little change.
Min humidity……..10 to 15 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds south around 6 mph in the morning becoming variable 2 to 5 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

JOSHUA TREE AREA (CAZ230):
TODAY… * Sky/weather…………………Sunny.
* Max Temperature……………..62-74. * 24 hr trend………………Little change.
* Min Humidity………………..18-26 pct. * 24 hr trend………………Little change.
* Winds – 20 foot…Slope/Valley..North 5 to 15 mph.
* Winds…10000 FT MSL…………West 20 to 30 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.
* Haines High Level Index………5 moderate potential for large plume dominated fire growth.

.TONIGHT… * Sky/weather…………………Mostly clear.
* Min Temperature……………..42-50. * 24 hr trend………………Little change.
* Max Humidity………………..29-37 pct. * 24 hr trend………………17 pct drier.
* Winds – 20 foot…Slope/Valley..Northwest 5 to 15 mph.
* Winds…10000 FT MSL…………Northwest 10 to 20 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.

.TUESDAY… * Sky/weather…………………Mostly sunny.
* Max Temperature……………..61-72. * 24 hr trend………………Little change.
* Min Humidity………………..12-17 pct. * 24 hr trend………………8 pct drier.
* Winds – 20 foot…Slope/Valley..North 5 to 15 mph.
* Winds…10000 FT MSL…………West 10 to 20 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.
* Haines High Level Index………3 very low potential for large plume dominated fire growth.

NEEDLES, RIVER BAT. (CAZ229):
TODAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….74-79. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….12-20 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….North wind up to 10 mph increasing to 10 to 15 mph in the afternoon.
* 10000 ft msl….Northwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….6400 ft agl.
* Transport winds…..North 10 to 15 knots.
* Ventilation………Very good.

.TONIGHT… * Sky/Weather………Partly cloudy.
* Min temperature: * Valley floor….39-44. * 24 hr trend…..On average down 5 degrees.
* Max humidity: * Valley floor….34-39 percent. * 24 hr trend…..On average down 11 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….North wind 10 to 15 mph.
* 10000 ft msl….Northwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.TUESDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….71-76. * 24 hr trend…..On average down 3 degrees.
* Min humidity: * Valley floor….9-18 percent. * 24 hr trend…..On average down 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….North wind 10 to 15 mph with gusts to around 30 mph.
* 10000 ft msl….West 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.
* Mixing height…….2800 ft agl.
* Transport winds…..North 10 to 20 knots.
* Ventilation………Good.

STATELINE – CLARK COUNTY BORDER (NVZ465):
TODAY… * Sky/Weather………Mostly sunny.
* Max temperature: * 4000 feet…….65-70. * 24 hr trend…..On average down 2 degrees.
* Min humidity: * 4000 feet…….10-18 percent. * 24 hr trend…..On average down 6 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds 10 to 15 mph.
* 10000 ft msl….Northwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….6800 ft agl.
* Transport winds…..North around 10 knots.
* Ventilation………Good.

.TONIGHT… * Sky/Weather………Partly cloudy.
* Min temperature: * 4000 feet…….32-37. * 24 hr trend…..On average down 8 degrees.
* Max humidity: * 4000 feet…….39-44 percent. * 24 hr trend…..On average down 12 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds up to 10 mph.
* 10000 ft msl….Northwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.TUESDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * 4000 feet…….62-67. * 24 hr trend…..On average down 3 degrees.
* Min humidity: * 4000 feet…….12-17 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds up to 10 mph.
* 10000 ft msl….West 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.
* Mixing height…….3000 ft agl.
* Transport winds…..Light winds.
* Ventilation………Marginal.

*La Jolla CA
Washington’s Birthday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 59. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 50. Calm wind becoming south around 5 mph.
Tuesday
Mostly sunny, with a high near 63. Southeast wind around 5 mph becoming southwest in the afternoon.

*Poway CA
Washington’s Birthday
Sunny, with a high near 70. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 46. Calm wind.
Tuesday
Sunny, with a high near 73. Light and variable wind becoming west 5 to 10 mph in the afternoon.

*CEDAR CITY Ut.
Monday through Saturday

Cooler air will spread into the area Monday, with max temperatures
running 10-15 degrees cooler. Lingering snow showers will
continue across northern portions of the outlook area Monday
before ending Monday evening.

Washington’s Birthday
Mostly cloudy, then gradually becoming sunny, with a high near 47. North northwest wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 20. North wind around 6 mph.
Tuesday
Mostly sunny, with a high near 42. North wind 3 to 5 mph.

*************************** L.A COUNTY ********************************
LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ548):
Washington’s Birthday
Sunny, with a high near 72. North northwest wind 5 to 10 mph becoming east northeast in the morning.
Tonight
Partly cloudy, with a low around 45. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Tuesday
Mostly sunny, with a high near 74. North wind around 5 mph becoming calm in the morning.

ANGELES NATIONAL FOREST (CAZ254):
Washington’s Birthday
Sunny, with a high near 61. North northwest wind 10 to 15 mph becoming northeast in the morning. Winds could gust as high as 25 mph.
Tonight
Partly cloudy, with a low around 45. North northwest wind 10 to 15 mph becoming east 5 to 10 mph in the evening. Winds could gust as high as 25 mph.
Tuesday
Mostly sunny, with a high near 64. Breezy, with a north northeast wind 15 to 20 mph becoming northeast 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

ANTELOPE VALLEY (CAZ259):
Washington’s Birthday
Sunny, with a high near 68. West wind 5 to 10 mph becoming north northeast in the morning. Winds could gust as high as 15 mph.
Tonight
Partly cloudy, with a low around 35. West northwest wind 5 to 10 mph becoming east southeast after midnight. Winds could gust as high as 15 mph.
Tuesday
Mostly sunny, with a high near 69. Wind chill values as low as 30 early. North wind around 5 mph becoming south southwest in the afternoon.

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THIS DAY IN WEATHER HISTORY:
2002: Two funnel clouds were observed around Carlsbad.

1998: A waterspout was observed off Point Loma.

1997: A thunderstorm produced marble size hail at Yucaipa.

1990: Heavy snow that started on 2/16 and ended on 2/18 brought three to four feet of snow to the mountains. 48 inches was recorded at Green Valley and 46 inches at Big Bear Lake. An avalanche at Wrightwood buried ten hikers, injuring one. On this day 26 inches fell in Big Bear Lake, the greatest daily snowfall on record for February and the second greatest amount on record. This record snowfall amount also occurred on 1/31/1979.

1988: Very strong Santa Ana winds started on 2/16 and ended on 2/19. Gusts of 90 mph at Newport Beach and 70+ mph in the San Gabriel Mountain foothills were measured on this day. Gusts to 76 mph hit Monument Peak – Mt. Laguna on 2/18. Gusts to 63 mph hit Ontario on this day and a gust of 50 mph was reported at Rancho Cucamonga on 2/16. Numerous trees and power lines were downed causing power outages near the foothills of the San Gabriel and San Bernardino Mountains. On 2/19 in Pauma Valley a mobile home was overturned and shingles were torn off roofs. Fontana schools were closed due to wind damage. Three were killed when a big rig truck overturned and burned, one was killed having stepped on a downed power line). Power outages hit 200,000 customers in LA and Orange counties. Minor structural damage occurred to signs, etc. Grass fires resulted.

1986: Heavy rain that started on 2/14 and ended on this day claimed one life from resultant flash flooding. High surf during this period caused two drowning deaths.

1980: Six storms that began on 2/13 hit Southern California continuing on this day. By 2/21, 12.75 inches measured in LA. 30 were killed in widespread floods and mud slides. Roads and hundreds of homes were destroyed or damaged. Mission Valley was completely inundated between Friars Rd. and I-8. Large waves hit coast during this stormy period, causing coastal flooding at Mission Beach, including water over the boardwalk and into houses. On this day a waterspout was observed off Camp Pendleton.

1969: Heavy rain starting on 2/16 ended on 2/26. Up to 30 inches of precipitation fell on the south slopes of Mt. San Gorgonio, 13 inches were recorded northwest of Mt. San Jacinto, around ten inches at Banning, less than one inch in eastern Coachella Valley. The death and destruction continued from the previous month. 21 died from flooding and mud slides all over California. An entire family was killed in Mt. Baldy Village when a mud slide hit their home. Extensive damage hit crops, farmland and livestock. Creeks around Yucaipa all left their banks and substantial flooding occurred to residences and businesses. In the upper desert farmlands became lakes and more than 100 homes along the Mojave River were damaged. Roads and bridges recently repaired from previous month’s damage either washed out or were destroyed again.

1932: The high temperature in Escondido was 43°, the lowest high temperature on record.

1927: Continual rain that started on 2/11 for six days ended on this day. 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. On this day, 12.81 inches fell at Cuyamaca, 2.65 inches at El Capitan, 2.20 inches at El Cajon, and 1.47 inches at La Mesa. 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.

1883: The highest barometric pressure was recorded in San Diego on this day: 30.53 inches.

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TROPICAL EAST PACIFIC REPORT:

Routine issuance of the Tropical Weather Outlook will resume on May 15, 2020. During the off-season, Special Tropical Weather Outlooks will be issued as conditions warrant.

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CURRENT WEATHER @ HESP. @ 0745 Hrs. TEMP: 450 RH: 61% WIND: CALM
3.21” RF @ HESP. STA.SINCE OCT. 1st/20 Yr Avg: 7.12” : MONTH: 0.67” YTD S/F: 4.50” /
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FIRES: UPDATED

National Preparedness Level (PL 1 )

CDF FIRES TO DATE (STATE LANDS SRA)
Number of Fires and Acres:
Interval Fires Acres
January 1, 2020 through February 9, 2020 143 34
January 1, 2019 through February 9, 2019 71 56
5-Year Average (same interval) 144 1464
2020 Combined YTD (CALFIRE & US Forest Service) 163 79

Southern California Area (PL 1 )
No Reportable Incidents

Northern California Area (PL 1 )
No Reportable Incidents

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