WEATHER 2/11/20

DAILY FIRE WEATHER & FIRE INFO
ALL UNITS From:
EMAIL: pdupree@bdcecs.org
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COUNTY F.D RADIO: #733784 CALL SIGN: COM-330

Date: 2/11/20

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.: 46

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
==============================================================================
SOUTH OPS WX:
California will be under the influence of weak high pressure through Saturday. A trough will move into the Pacific Northwest Sunday. This trough will then drop into the Great Basin Monday and into the Desert Southwest Tuesday.

ꞏ North to northeast winds of 20 to 40 mph with gusts to 60 mph will continue to surface across the mountains and below the canyons and passes of Southern California this morning.

ꞏ Winds across Southern California will decrease and become more localized this afternoon and then become light by this evening.

ꞏ Minimum humidity will be mainly in the teens today.

ꞏ Temperatures will be near to a little above normal through Saturday, with upper 40s and 50s across the mountains and 60s to low 70s in the valleys.

ꞏ Temperatures will cool to near to a little below normal Sunday through early next week.

ꞏ Westerly winds of 20 to 30 mph with gusts to 50 mph will surface across the mountain ridges and desert passes Sunday morning through Sunday evening.

ꞏ There will be north to northeast winds of 20 to 30 mph with gusts to 50 mph across the mountains and below the canyons and passes of Southern California Monday morning through Tuesday night.

SYNOP: (NWS SAN DIEGO)
Gusty offshore winds from the northeast will continue through Tuesday afternoon, peaking early Tuesday morning. Winds will subside in the evening. Northwest flow will prevail for the remainder of the week with near normal temperatures.

NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)
Gusty north winds will continue through early afternoon before gradually decreasing late in the day. Improving conditions are anticipated for the remainder of the week though low slight chances of showers will return by Friday and Saturday across the Great Basin and Sierra.

Key Points:
• Gusty winds expected today, strongest near the Colorado River Valley and eastern Mojave Desert.
• Dangerous boating conditions are likely at Lake Mead, Lake Mohave, and Lake Havasu.

CONFIDENCE AND DETAILS
Southern NV/Northwest AZ/Southeast CA
HIGH Confidence Strong crosswinds on east-west oriented roads, especially for high profile vehicles.
Dangerous boating conditions due to strong winds and significant wave activity.

Details:
TODAY
Strong north winds will impact much of the eastern Mojave Desert and the Lower Colorado River Valley.
Wind gusts of 40-50 mph will be common, strongest near Laughlin.
Waves heights of 1.5-3 feet will be possible.
Localized blowing dust will also be a concern.
Winds will gradually ease this evening.

DAILY FUELS/FIRE POTENTIAL:
There will be little or no fire activity across the region through the forecast period

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

——————————————————————————
APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):
TODAY… Sky/weather………Mostly sunny.
Max temperature…..55 to 60. 24 HR TREND……Little change.
Min humidity……..10 percent. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..Winds northeast 6 to 12 mph with gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Clear.
Min temperature…..30 to 38. 24 HR TREND……Down 1 degree.
Max humidity……..30 to 40 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds southwest around 6 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.WEDNESDAY… Sky/weather………Mostly sunny.
Max temperature…..61 to 66. 24 HR TREND……Up 5 degrees.
Min humidity……..15 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Winds northwest around 6 mph in the morning becoming variable 2 to 5 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*WRIGHTWOOD:
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
Tuesday
Sunny, with a high near 44. North wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 31. Northwest wind around 5 mph.
Wednesday
Sunny, with a high near 52. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 34. Northwest wind around 5 mph becoming calm

*BIG PINES / WEST WRIGHTWOOD AREA
HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON PST TUESDAY
Tuesday
Sunny, with a high near 49. Wind chill values as low as 5 early. Very windy, with a north northeast wind 30 to 40 mph decreasing to 20 to 30 mph in the afternoon. Winds could gust as high as 55 mph.
Tuesday Night
Mostly clear, with a low around 37. Wind chill values as low as 30. North wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 51. North wind around 10 mph becoming west in the morning. Winds could gust as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 37. West wind around 10 mph becoming south in the evening. Winds could gust as high as 15 mph.

*PHELAN:
Tuesday
Sunny, with a high near 51. North wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 38. West wind around 5 mph.
Wednesday
Sunny, with a high near 58. Southwest wind around 5 mph becoming calm.
Wednesday Night
Mostly clear, with a low around 40. South wind around 5 mph becoming calm after midnight.
TRONA (INDIAN WELLS) (CAZ298):
TUESDAY… Sky/weather………Sunny.
Max Temperature…..58-63. 24 HR Trend……Little change.
Min Humidity……..10-17 percent. 24 HR Trend……Up 1-3 percent.
20-Foot Winds…….Northeast 3-13 mph.
LAL……………..1.
Ventilation………Excellent.
Mixing height…….4500 ft AGL.
Transport Winds…..North around 20 mph.
Chc Wetting Rain….0 percent.

.TUESDAY NIGHT… Sky/weather………Clear.
Min Temperature…..33-38. 24 HR Trend……Little change.
Max Humidity……..38-48 percent. 24 HR Trend……Up 6-12 percent.
20-Foot Winds…….Northwest 3-7 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

.WEDNESDAY… Sky/weather………Sunny.
Max Temperature…..62-67. 24 HR Trend……Up 3-5 degrees.
Min Humidity……..15-22 percent. 24 HR Trend……Up 3-5 percent.
20-Foot Winds…….North 3-5 mph in the early morning shifting to the east 3-6 mph by afternoon.
LAL……………..1.
Ventilation………Marginal. Mixing height…….4400 ft AGL. Transport Winds…..North around 5 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………Sunny.
* Max temperature: * Valley floor….61-66. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….9-12 percent. * 24 hr trend…..On average down 8 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….North wind 10 to 20 mph with gusts to around 35 mph.
* 10000 ft msl….North 40 to 50 mph decreasing to 30 to 40 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.TONIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….32-37. * 24 hr trend…..On average down 3 degrees.
* Max humidity: * Valley floor….30-35 percent. * 24 hr trend…..On average down 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Northwest wind up to 10 mph in the evening becoming downslope/downvalley 2 to 5 mph.
* 10000 ft msl….North 30 to 40 mph decreasing to 20 to 30 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.WEDNESDAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….64-69. * 24 hr trend…..On average up 3 degrees.
* Min humidity: * Valley floor….11-15 percent. * 24 hr trend…..On average up 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Upslope/upvalley 4 to 8 mph becoming north up to 10 mph in the afternoon.
* 10000 ft msl….Northwest 15 to 25 mph becoming west 10 to 20 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

*BAKER:
WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST /NOON MST/ TUESDAY
Tuesday
Sunny, with a high near 63. North wind 13 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Clear, with a low around 32. Light north wind.
Wednesday
Sunny, with a high near 67. Light north wind.
Wednesday Night
Mostly clear, with a low around 35. East wind around 5 mph becoming light and variable in the evening.

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS (CAZ226):
TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….59-64. * 7000 feet…….47-52. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….10-15 percent. * 7000 feet…19-29 percent. * 24 hr trend…Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds 10 to 20 mph.
* Upper slopes….North winds 10 to 20 mph with gusts to around 35 mph.
* 10000 ft msl….North 15 to 25 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.TONIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….29-34. * 7000 feet..13-18. * 24 hr trend…On average up 3 degrees.
* Max humidity: * Valley floor….43-48 percent. * 7000 feet…….38-43 percent. * 24 hr trend…On average up 4 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Northwest winds up to 10 mph.
* Upper slopes….Northwest winds 10 to 15 mph. Gusts up to 25 mph in the evening.
* 10000 ft msl….North 15 to 25 mph becoming northwest 10 to 15 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.WEDNESDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….61-66. * 7000 feet…….50-55. * 24 hr trend…..On average up 3 degrees.
* Min humidity: * Valley floor….14-18 percent. * 7000 feet…23-33 percent. * 24 hr trend…On average up 3 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Upslope/upvalley 4 to 8 mph becoming northeast around 10 mph in the afternoon.
* Upper slopes….Northwest winds around 10 mph shifting to the northeast in the afternoon.
* 10000 ft msl….North up to 10 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

KERN CO. DESERTS (CAZ299):
.TUESDAY… Sky/weather………Sunny.
Max Temperature…..57-62. 24 HR Trend……Little change.
Min Humidity……..12-22 percent. 24 HR Trend……Little change.
20-Foot Winds…….Northeast 5-13 mph.
LAL……………..1.
Ventilation………Excellent.
Mixing height…….4200 ft AGL.
Transport Winds…..Northeast around 20 mph.
Chc Wetting Rain….0 percent.

.TUESDAY NIGHT… Sky/weather………Clear.
Min Temperature…..32-37. 24 HR Trend……Little change.
Max Humidity……..35-45 percent. 24 HR Trend……Up 2-8 percent.
20-Foot Winds…….Northwest 3-6 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

.WEDNESDAY… Sky/weather………Sunny.
Max Temperature…..62-67. 24 HR Trend……Up 2-8 degrees.
Min Humidity……..19-29 percent. 24 HR Trend……Up 3-9 percent.
20-Foot Winds…….North 3-5 mph in the early morning shifting to the southwest 3-8 mph by afternoon.
LAL……………..1.
Ventilation………Fair.
Mixing height…….4900 ft AGL.
Transport Winds…..North around 5 mph in the morning shifting to the west in the afternoon.
Chc Wetting Rain….0 percent.

INLAND EMPIRE (CAZ248):
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
TODAY… Sky/weather………Mostly sunny.
Max temperature…..61 to 70. 24 HR TREND……Up 2 degrees.
Min humidity……..10 to 15 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds north 9 to 19 mph with gusts to 40 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Clear.
Min temperature…..34 to 43. 24 HR TREND……Down 6 degrees.
Max humidity……..40 to 50 percent. 24 HR TREND……Up 10 percent.
WIND (20 FT)……..Winds north 6 to 10 mph with gusts to 20 mph in the evening becoming variable 2 to 5 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.WEDNESDAY… Sky/weather………Mostly sunny.
Max temperature…..61 to 68. 24 HR TREND……Down 1 degree.
Min humidity……..20 to 25 percent. 24 HR TREND……Up 10 percent.
WIND (20 FT)……..Variable 2 to 5 mph becoming southwest 6 to 9 mph with gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*DEVORE:
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
Tuesday
Sunny, with a high near 63. Windy, with a north wind 35 to 40 mph decreasing to 25 to 30 mph in the afternoon. Winds could gust as high as 55 mph.
Tuesday Night
Mostly clear, with a low around 46. North wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 65. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 47. West wind around 5 mph becoming calm in the evening.

*CHINO HILLS:
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
Tuesday
Sunny, with a high near 67. Northeast wind 10 to 15 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 41. Calm wind.
Wednesday
Sunny, with a high near 65. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 43. Southwest wind 5 to 10 mph becoming light and variable in the evening.

*COLTON:
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
Tuesday
Sunny, with a high near 67. North wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 43. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 68. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 45. Calm wind.

SAN BERNARDINO N.F. (CAZ255):
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
.TODAY… Sky/weather………Mostly sunny.
Max temperature…..38 to 48 above 6000 feet to 47 to 57 below 6000 feet. 24 HR TREND……Up 6 degrees.
Min humidity……..10 to 15 percent. 24 HR TREND……Down 15 percent.
WIND (20 FT)……..
SLOPES………..Winds north 18 to 28 mph. Gusts to 55 mph…becoming 45 mph in the afternoon.
RIDGETOP………Winds north 26 to 36 mph. Gusts to 75 mph…becoming 55 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..20 to 30 above 6000 feet to 30 to 39 below 6000 feet. 24 HR TREND……Down 1 degree.
Max humidity…20 to 30 percent on desert slopes to 25 to 35 percent on coastal slopes. 24 HR TREND…Down 10 percent.
WIND (20 FT)……..
SLOPES………..Winds northeast 6 to 12 mph with gusts to 25 mph.
RIDGETOP………Winds north 6 to 16 mph with gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.WEDNESDAY… Sky/weather………Mostly sunny.
Max temperature…..42 to 52 above 6000 feet to 49 to 59 below 6000 feet. 24 HR TREND……Up 3 degrees.
Min humidity……..20 to 25 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..
SLOPES………..Upslope 2 to 5 mph becoming west 6 to 8 mph with gusts to 20 mph in the afternoon.
RIDGETOP………Winds northwest 6 to 10 mph. Gusts to 20 mph in the morning.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*LAKE ARROWHEAD SCHOOL- AREA:
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
Tuesday
Sunny, with a high near 46. Windy, with a north wind 20 to 30 mph, with gusts as high as 45 mph.
Tuesday Night
Mostly clear, with a low around 32. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 51. Northeast wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 34. Calm wind becoming northeast around 5 mph after midnight.

*BIG BEAR SCHOOL AREA:
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
Tuesday
Sunny, with a high near 41. North wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 20. North wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 50. North wind around 5 mph becoming calm in the morning.
Wednesday Night
Mostly clear, with a low around 23. Calm wind becoming east around 5 mph

BANNING PASS (CAZ265):
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
TODAY… Sky/weather………Mostly sunny.
Max temperature…..64 to 69. 24 HR TREND……Up 4 degrees.
Min humidity……..10 percent. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..Winds north 6 to 16 mph with gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..38 to 47. 24 HR TREND……Down 4 degrees.
Max humidity……..25 to 35 percent. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..Winds north 6 to 10 mph with gusts to 20 mph in the evening becoming variable 2 to 5 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.WEDNESDAY… Sky/weather………Mostly sunny.
Max temperature…..Around 61. 24 HR TREND……Up 2 degrees.
Min humidity……..15 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Variable 2 to 4 mph becoming southeast around 6 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

JOSHUA TREE AREA (CAZ230):
TODAY… * Sky/weather…………………Sunny.
* Max Temperature……………..50-61. * 24 hr trend………………Little change.
* Min Humidity………………..11-16 pct. * 24 hr trend………………22 pct drier.
* Winds – 20 foot…Slope/Valley..North 15 to 25 mph. Strong gusts possible.
* Winds…10000 FT MSL…………North 45 to 55 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.
* Haines High Level Index………4 low potential for large plume dominated fire growth.

.TONIGHT… * Sky/weather…………………Clear.
* Min Temperature……………..33-40. * 24 hr trend………………3 degrees cooler.
* Max Humidity………………..26-34 pct. * 24 hr trend………………16 pct drier.
* Winds – 20 foot…Slope/Valley..Northwest 5 to 15 mph.
* Winds…10000 FT MSL…………North 30 to 40 mph in the evening becoming 20 to 30 mph after midnight.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.

.WEDNESDAY… * Sky/weather…………………Sunny.
* Max Temperature……………..56-68. * 24 hr trend………………7 degrees warmer.
* Min Humidity………………..12-18 pct. * 24 hr trend………………Little RH change.
* Winds – 20 foot…Slope/Valley..Northwest 5 to 15 mph.
* Winds…10000 FT MSL…………Northwest 15 to 25 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.

NEEDLES, RIVER BAT. (CAZ229):
…WIND ADVISORY IN EFFECT UNTIL 11 AM PST /NOON MST/ TUESDAY
.TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….61-66. * 24 hr trend…..On average down 4 degrees.
* Min humidity: * Valley floor….10-16 percent. * 24 hr trend…..On average down 9 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….North wind 15 to 25 mph with gusts to around 40 mph.
* 10000 ft msl….Northeast 30 to 40 mph decreasing to 25 to 35 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….5300 ft agl. * Transport winds…..North 15 to 25 knots. * Ventilation………Excellent.

.TONIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….33-38. * 24 hr trend…..On average down 4 degrees.
* Max humidity: * Valley floor….35-40 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….North wind around 10 mph in the evening becoming downslope/downvalley 2 to 5 mph.
* 10000 ft msl….North 25 to 35 mph decreasing to 20 to 30 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.WEDNESDAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….65-70. * 24 hr trend…..On average up 4 degrees.
* Min humidity: * Valley floor….11-20 percent. * 24 hr trend…..On average up 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Upslope/upvalley 4 to 8 mph.
* 10000 ft msl….Northwest 20 to 30 mph decreasing to 15 to 25 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….3800 ft agl. * Transport winds…..Light winds. * Ventilation………Fair.

STATELINE – CLARK COUNTY BORDER (NVZ465):
.TODAY… * Sky/Weather………Sunny.
* Max temperature: * 4000 feet…….57-62. * 24 hr trend…..On average down 2 degrees.
* Min humidity: * 4000 feet…….10-15 percent. * 24 hr trend…..On average down 3 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds 10 to 20 mph with gusts to around 35 mph.
* 10000 ft msl….Northeast 35 to 45 mph becoming north 25 to 35 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….4900 ft agl. * Transport winds…..North 10 to 20 knots. * Ventilation………Very good.

.TONIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * 4000 feet…….29-34. * 24 hr trend…..On average down 2 degrees.
* Max humidity: * 4000 feet…….38-43 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds up to 10 mph in the evening becoming downslope/downvalley 2 to 5 mph.
* 10000 ft msl….North 25 to 35 mph decreasing to 20 to 30 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.WEDNESDAY… * Sky/Weather………Sunny.
* Max temperature: * 4000 feet…….58-63. * 24 hr trend…..Little change.
* Min humidity: * 4000 feet…….14-19 percent. * 24 hr trend…..On average up 4 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Upslope/upvalley 4 to 8 mph.
* 10000 ft msl….Northwest 15 to 25 mph becoming 15 to 20 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….2600 ft agl. * Transport winds…..Light winds. * Ventilation………Marginal.

*La Jolla CA
Tuesday
Sunny, with a high near 64. East wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 48. Calm wind becoming southeast around 5 mph after midnight.
Wednesday
Sunny, with a high near 62. Southeast wind 5 to 10 mph becoming west in the afternoon.
Wednesday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 49. South wind around 5 mph becoming calm.

*Poway CA
Tuesday
Sunny, with a high near 70. Northeast wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 42. Calm wind becoming east around 5 mph in the evening.
Wednesday
Sunny, with a high near 68. Southeast wind 5 to 10 mph becoming west in the afternoon.
Wednesday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 44. Calm wind becoming east around 5 mph

*CEDAR CITY Ut.
DAYS TWO THROUGH SEVEN…Tuesday through Sunday

Strong winds will impact outlying areas of St George early Tuesday. No significant weather systems expected after Tuesday.

Tuesday
Sunny, with a high near 37. North wind 14 to 16 mph.
Tuesday Night
Clear, with a low around 18. North wind 6 to 11 mph becoming light east northeast in the evening.
Wednesday
Sunny, with a high near 45. North wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 19. East northeast wind 3 to 7 mph

*************************** L.A COUNTY ********************************
…MODERATE TO STRONG NORTHEAST WINDS THROUGH TUESDAY…

…SLIGHT CHANCE OF SHOWERS ON FRIDAY…
LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ548):
.TUESDAY… Sky/weather………Sunny.
Max temperature…..68-74. 24 hr trend……Little change.
Min humidity……..8-15 percent. 24 hr trend……Down 5-10.
20-foot winds…….Below passes and canyons, northeast 15-25 mph with gusts to 40 mph, decreasing to 5-15 mph in the afternoon. Otherwise, northeast 5-15 mph becoming southwest 6-12 mph in the afternoon.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

.TUESDAY NIGHT… Sky/weather………Clear.
Min temperature…..45-49.
Max humidity……..45-60 percent except 30-45 percent in the hills.
20-foot winds…….Southwest to west 6-12 mph in the evening, becoming variable 3-6 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.WEDNESDAY… Sky/weather………Mostly sunny.
Max temperature…..65-71.
Min humidity……..20-40 percent.
20-foot winds…….Variable 3-6 mph becoming southwest to west 8-15 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANGELES NATIONAL FOREST (CAZ254):
HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY
TUESDAY… Sky/weather………Sunny.
Max temperature…..57-67 low elevations to 47-57 higher elevations. 24 hr trend……Little change.
Min humidity……..8-15 percent. 24 hr trend……Down 10-15.
20-foot winds…….
Valleys/lwr slopes…North to northeast 25-40 mph with gusts to 65 mph, decreasing to 20-30 mph with gusts to 45 mph in the afternoon.
Ridges/upr slopes….North to northeast 25-40 mph with gusts to 65 mph, decreasing to 25-40 mph with gusts to 55 mph. Isolated gusts to 80 mph.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

.TUESDAY NIGHT… Sky/weather………Clear.
Min temperature…..41-48 low elevations to 33-41 colder valleys and peaks.
Max humidity……..15-25 percent except 25-35 percent colder valleys.
20-foot winds…….
Valleys/lwr slopes…North to northeast 15-25 mph with gusts to 35 mph.
Ridges/upr slopes….North to northeast 15-25 mph with gusts to 40 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.WEDNESDAY… Sky/weather………Mostly sunny.
Max temperature…..60-67 low elevations to 51-60 higher elevations.
Min humidity……..15-25 percent.
20-foot winds…….
Valleys/lwr slopes…North to northeast 5-15 mph with gusts to 25 mph, becoming upvalley 6-12 mph with gusts to 20 mph.
Ridges/upr slopes….North to northeast 5-15 mph with gusts to 25 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANTELOPE VALLEY (CAZ259):
.TUESDAY… Sky/weather………Sunny.
Max temperature…..55-64. 24 hr trend……Little change.
Min humidity……..8-15 percent. 24 hr trend……Down 5-10.
20-foot winds…….Northeast to east 15-25 mph with gusts to 35 mph.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

.TUESDAY NIGHT… Sky/weather………Clear.
Min temperature…..31-41.
Max humidity……..30-50 percent.
20-foot winds…….Northeast to east 8-15 mph with gusts to 25 mph in the evening, becoming variable 5-10 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.WEDNESDAY… Sky/weather………Mostly sunny.
Max temperature…..58-68.
Min humidity……..12-20 percent.
20-foot winds…….Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.
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THIS DAY IN WEATHER HISTORY:
2003: Heavy rains that started on this day and ended on 2/14 produced the following rainfall totals: 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.

2001: A strong winter storm that started on this day and ended on 2/13 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, two feet fell at Snow Summit, and five to 12 inches at Apple Valley. Mountain High Resort reported ten inches of new snow on this day. The roof of an ice rink caved in at Blue Jay. On this day a waterspout was observed three miles off Laguna Beach and two waterspouts were observed one mile off Ocean Beach.

1999: A period of Santa Ana winds began on 2/10 and ended on 2/12. Gusts of 85 mph were measured at Rialto. On this day a freshly plowed field below the San Gorgonio pass was stripped of topsoil, resulting in a dust storm near Beaumont. Elsewhere in Riverside County numerous trees and power lines were downed, and a large commercial building was destroyed. In San Diego County, several tractor trailers and numerous highway signs were toppled along Interstate 8 as gusts to 80 mph forced a temporary closure.
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’

1988: Record heat hit the region on 2/10 and on this day. On 2/10 the 92° reading at San Juan Capistrano was the nation’s high for the date, it was 90° at Lemon Grove, 88° at LA and Escondido. On this day it was 83° in San Diego and 87° in many locations around San Diego. It was also 94° in Escondido, the highest temperature on record for February. Remarkably, the lowest February temperature on record was set on this same day in 1900.

1973: Heavy rain that began on 2/10 ended on this day. One to two inches of rainfall hit the coast, three to seven inches fell in the coastal valleys, and up to 12 inches fell at Mts. Wilson and Baldy. Six inches in six hours was recorded at Mt. Wilson on this day. Flooding and mud slides closed many roads. Strong storm winds of 57 mph were recorded at Riverside and 46 mph at Newport Beach. Some 200 trees were uprooted in Pacific Beach alone.

1963: Heavy rain that began on 2/9 ended on this day. Highways and homes were flooded. High surf caused damage to coastal homes and structures.

1946: Snow flurries were reported in many parts of San Diego. Icy cold winds in mountains of San Diego County included gusts to 72 mph.

1929: It was 22° in Riverside, the lowest temperature on record for February, and the third lowest on record.

1927: Continual rain that started on this day lasted for six days and 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.

1900: It was 26° in Escondido, the lowest temperature on record for February. Remarkably, the highest February temperature on record was set on this same day in 1988.
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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. @ 0819 Hrs. TEMP: 620 RH: 59% WIND: CALM
3.21” RF @ HESP. STA.SINCE OCT. 1st/20 Yr Avg: 7.12” : MONTH: 0.00” 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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