WEATHER 5/14/20

DAILY FIRE WEATHER & FIRE INFO
ALL UNITS From:

EMAIL: pdupree@bdcecs.org
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Date: 5/14/20

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.: 33

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:
An upper level ridge will extend into the West Coast over the next couple of days, gradually increasing high temperatures. A mid-latitude cyclone aloft will dig towards the state Saturday and move onshore on Tuesday. A few showers will be likely, but rainfall totals will be meager through Wednesday. As the low propagates east of the region, a weak ridge will build into the state at the end of the forecast period.

· Strong northwesterly winds of 30 to 40 mph, occasionally gusting over 50 mph, will surface through the eastern slopes of the Tehachapi Range into the Antelope Valley this evening. Concurrently, gusty northerly winds will develop through southern Santa Barbara county, reaching 30 to 40 mph and gusting to 50 mph.

· High temperatures will continue to be slightly below average today with mountains reaching the mid 50’s to mid 60’s and valleys in the 70’s.

· Another cooldown is expected Sunday through Wednesday with the presence of a low-pressure area aloft. Temperatures will run 5 to 10 degrees below normal by Tuesday.

· Dry conditions will persist through the mountain areas and east into adjacent deserts as minimum RH will be below 30% each afternoon.
· A few showers will develop Monday through Wednesday with greatest totals favoring the Sierras

SYNOP: (NWS SAN DIEGO)
High pressure over the eastern Pacific will move to near the West Coast on Friday, then move inland on Saturday. A warming trend will continue into the weekend. The marine layer will keep coastal humidity higher. For Sunday through Wednesday, a low pressure system off the West Coast will move slowly into the western states. This will bring a cooling trend for early next week, with stronger and gusty west winds in the mountains and deserts for Monday and Tuesday, and a slight chance of showers on Tuesday. Tuesday will be the coolest day with warming resuming Wednesday.

NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)
Dry weather with a warming trend through the end of the week. Afternoon humidity falling below 15 percent for the deserts and around 25 percent for the local mountain ranges. Good recovery overnight expected to continue with morning humidity around 30 to 40 percent. Another system will bring cooler temperatures but gustier winds starting on Sunday. This system will bring a mix of limited shower chances for some and elevated to critical fire weather for others.

DAILY FUELS/FIRE POTENTIAL:
Fire activity will remain meager over the forecast period as temperatures will remain near or below normal and winds will be generally light. Initial attack activity will light over the next week.

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

————————————————————————
APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):
TODAY… Sky/weather………Mostly sunny.
Max temperature…..75 to 84. 24 HR TREND……Up 2 degrees.
Min humidity……..20 to 25 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds west 9 to 17 mph with gusts to 35 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..48 to 56. 24 HR TREND……Up 1 degree.
Max humidity……..55 to 65 percent. 24 HR TREND……Up 15 percent.
WIND (20 FT)……..Winds west 7 to 16 mph with gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..81 to 88. 24 HR TREND……Up 5 degrees.
Min humidity……..15 to 20 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Winds west 6 to 14 mph with gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*WRIGHTWOOD:
Thursday
Sunny, with a high near 64. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 47. West wind around 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 66. North wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 49. Light and variable wind becoming southwest 5 to 10 mph in the evening.

*BIG PINES / WEST WRIGHTWOOD AREA
Thursday
Sunny, with a high near 58. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 44. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 64. West northwest wind around 10 mph.
Friday Night
Mostly clear, with a low around 48.

*PHELAN:
Thursday
Sunny, with a high near 72. West wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 50. West wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 77. Northwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 54. West wind 5 to 10 mph becoming southwest in the evening.

TRONA (INDIAN WELLS) (CAZ298):
THURSDAY… Sky/weather………Sunny.
Max Temperature…..77-82. 24 HR Trend……Up 1-3 degrees.
Min Humidity……..19-29 percent. 24 HR Trend……Up 1-3 percent.
20-Foot Winds…….West 3-9 mph in the early morning increasing to 3-15 mph by afternoon.
LAL……………..1. Ventilation………Excellent.
Mixing height…….7800 ft AGL. Transport Winds…..West around 5 mph in the morning increasing to around 15 mph in the afternoon.
Chc Wetting Rain….0 percent.

THURSDAY NIGHT… Sky/weather………Clear.
Min Temperature…..51-56. 24 HR Trend……Little change.
Max Humidity……..52-62 percent. 24 HR Trend……Up 6-12 percent.
20-Foot Winds…….West 3-15 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

FRIDAY… Sky/weather………Sunny.
Max Temperature…..82-87. 24 HR Trend……Up 2-8 degrees.
Min Humidity……..15-25 percent. 24 HR Trend……Down 3-5 percent.
20-Foot Winds…….Northwest 3-8 mph in the early morning shifting to the southwest 3-6 mph by afternoon.
LAL……………..1. Ventilation………Marginal.
Mixing height…….1700 ft AGL. Transport Winds…..Northwest around 5 mph in the morning.
Chc Wetting Rain….0 percent.

BARSTOW / DAGGETT / BAKER / FT. IRWIN (CAZ228):
THURSDAY… Sky/Weather………Sunny.
* Max temperature: Valley floor….87-92. 24 hr trend…..On average up 3 degrees.
* Min humidity: Valley floor….10-18 percent. 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg): Valley floor….West wind 10 to 15 mph with gusts to around 25 mph.
* 10000 ft msl….West 15 to 25 mph.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..4.

THURSDAY NIGHT… Sky/Weather………Mostly clear.
* Min temperature: Valley floor….51-56. 24 hr trend…..On average up 2 degrees.
* Max humidity: Valley floor….46-51 percent. 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg): Valley floor….West wind 10 to 15 mph.
* 10000 ft msl….Southwest 15 to 20 mph decreasing to 10 to 15 mph after midnight.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..4.

FRIDAY… Sky/Weather………Sunny.
* Max temperature: Valley floor….89-94. 24 hr trend…..On average up 2 degrees.
* Min humidity: Valley floor….11-17 percent. 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg): Valley floor….West wind up to 10 mph.
* 10000 ft msl….South up to 10 mph increasing to west around 10 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.

*BAKER:
Thursday
Sunny, with a high near 90. South wind 6 to 8 mph.
Thursday Night
Clear, with a low around 60. Southwest wind 7 to 13 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 92. South southwest wind 5 to 7 mph becoming west northwest in the morning.
Friday Night
Clear, with a low around 65. Southwest wind 5 to 8 mph.

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS (CAZ226):
THURSDAY… Sky/Weather………Mostly sunny.
* Max temperature: Valley floor….80-85. 7000 feet…….69-74. 24 hr trend…..On average up 2 degrees.
* Min humidity: Valley floor….12-18 percent. 7000 feet…….21-31 percent. 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg): Slope/valley….Northwest winds up to 10 mph shifting to the southwest around 10 mph in the afternoon.
* Upper slopes….West winds 10 to 15 mph.
* 10000 ft msl….Southwest up to 10 mph.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.

THURSDAY NIGHT… Sky/Weather………Mostly clear.
* Min temperature: Valley floor….49-54. 7000 feet…….24-29. 24 hr trend…..On average up 2 degrees.
* Max humidity: Valley floor….48-53 percent. 7000 feet…….55-60 percent. 24 hr trend…..On average up 5 percent.
* Wind (slope/valley=20 ft, 10 min avg): Slope/valley….Northwest winds 10 to 15 mph.
* Upper slopes….West winds 10 to 15 mph.
* 10000 ft msl….Light and variable.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.

FRIDAY… Sky/Weather………Sunny.
* Max temperature: Valley floor….84-89. 7000 feet…….72-77. 24 hr trend…..On average up 3 degrees.
* Min humidity: Valley floor….11-16 percent. 7000 feet…….23-33 percent. 24 hr trend…..On average up 2 percent.
* Wind (slope/valley=20 ft, 10 min avg): Slope/valley….North winds around 10 mph shifting to the southeast in the afternoon. Gusts up to 25 mph.
* Upper slopes….West winds around 10 mph shifting to the south in the afternoon. Gusts up to 25 mph.
* 10000 ft msl….Light and variable.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.

KERN CO. DESERTS (CAZ299):
THURSDAY… Sky/weather………Sunny.
Max Temperature…..71-76. 24 HR Trend……Up 1-3 degrees.
Min Humidity……..37-47 percent. 24 HR Trend……Up 2-4 percent.
20-Foot Winds…….West 5-15 mph in the early morning increasing to 7-19 mph by afternoon.
LAL……………..1. Ventilation………Excellent.
Mixing height…….7600 ft AGL. Transport Winds…..West 15 to 20 mph.
Chc Wetting Rain….0 percent.

THURSDAY NIGHT… Sky/weather………Clear.
Min Temperature…..49-54. 24 HR Trend……Little change.
Max Humidity……..61-71 percent. 24 HR Trend……Little change.
20-Foot Winds…….West 6-18 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

FRIDAY… Sky/weather………Sunny.
Max Temperature…..77-82. 24 HR Trend……Up 3-9 degrees.
Min Humidity……..32-42 percent. 24 HR Trend……Down 2-8 percent.
20-Foot Winds…….West 4-16 mph in the early morning decreasing to 4-11 mph by afternoon.
LAL……………..1. Ventilation………Marginal.
Mixing height…….900 ft AGL. Transport Winds…..Northwest around 15 mph in the morning.
Chc Wetting Rain….0 percent.

INLAND EMPIRE (CAZ248):
.TODAY… Sky/weather………Partly cloudy…becoming mostly sunny.
Max temperature…..73 to 80. 24 HR TREND……Up 6 degrees.
Min humidity……..35 to 45 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds south around 6 mph becoming west 6 to 11 mph with gusts to 25 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..51 to 57. 24 HR TREND……Up 3 degrees.
Max humidity……..85 to 95 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Winds south 6 to 11 mph with gusts to 20 mph in the evening becoming variable 2 to 5 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..76 to 83. 24 HR TREND……Up 2 degrees.
Min humidity……..35 to 45 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Variable 2 to 5 mph becoming west 6 to 11 mph with gusts to 25 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*DEVORE:
Thursday
Sunny, with a high near 75. East wind 5 to 10 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Mostly clear, with a low around 55. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 80. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 59. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

*CHINO HILLS:
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 75. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Thursday Night
Mostly clear, with a low around 55. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 78. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

*COLTON:
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 59. Southwest wind 5 to 10 mph becoming south after midnight.
Friday
Sunny, with a high near 84. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 61. Southwest wind 5 to 10 mph becoming light and variable in the evening.

SAN BERNARDINO N.F. (CAZ255):
.TODAY… Sky/weather………Partly cloudy…becoming mostly sunny.
Max temperature…..58 to 68 above 6000 feet to 63 to 73 below 6000 feet. 24 HR TREND……Up 5 degrees.
Min humidity……..20 to 30 percent on desert slopes to 30 to 40 percent on coastal slopes.
24 HR TREND……Little change.
WIND (20 FT)……..
SLOPES………..Winds west 6 to 13 mph with gusts to 30 mph.
RIDGETOP………Winds west 6 to 13 mph. Gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..35 to 45 above 6000 feet to 42 to 52 below 6000 feet. 24 HR TREND……Up 4 degrees.
Max humidity……..40 to 50 percent on desert slopes to 75 to 85 percent on coastal slopes.
24 HR TREND……Down 50 percent.
WIND (20 FT)……..
SLOPES………..Winds west 6 to 12 mph with gusts to 25 mph.
RIDGETOP………Winds west 6 to 11 mph with gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..61 to 71 above 6000 feet to 67 to 77 below 6000 feet. 24 HR TREND……Up 6 degrees.
Min humidity……..20 to 30 percent on desert slopes to 30 to 40 percent on coastal slopes.
24 HR TREND……Little change.
WIND (20 FT)……..
SLOPES………..Winds west 6 to 11 mph with gusts to 25 mph.
RIDGETOP………Winds northwest around 6 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*LAKE ARROWHEAD SCHOOL- AREA:
Thursday
Sunny, with a high near 64. Northeast wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 46. South wind around 5 mph becoming calm.
Friday
Sunny, with a high near 68. Northeast wind 5 to 10 mph becoming southwest in the afternoon.
Friday Night
Mostly clear, with a low around 50. South wind around 5 mph becoming calm in the evening.

*BIG BEAR SCHOOL AREA:
Thursday
Sunny, with a high near 64. West wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 34. Southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 66. West wind around 5 mph becoming north in the morning.
Friday Night
Mostly clear, with a low around 40. West wind around 5 mph becoming south after midnight.

BANNING PASS (CAZ265):
.TODAY… Sky/weather………Partly cloudy…becoming mostly sunny.
Max temperature…..88 to 93. 24 HR TREND……Up 5 degrees.
Min humidity……..15 to 20 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)….Winds west 10 to 20 mph. Gusts to 30 mph…becoming 40 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..60 to 68. 24 HR TREND……Up 2 degrees.
Max humidity……..40 to 50 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Winds northwest 11 to 21 mph with gusts to 40 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..90 to 95. 24 HR TREND……Up 2 degrees.
Min humidity……..15 to 20 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Winds west 6 to 15 mph with gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

JOSHUA TREE AREA (CAZ230):
THURSDAY… Sky/weather…………………Mostly sunny.
* Max Temperature……………..74-88. 24 hr trend………………3 degrees warmer.
* Min Humidity………………..16-25 pct. 24 hr trend………………3 pct drier.
* Winds – 20 foot…Slope/Valley..West 5 to 15 mph.
* Winds…10000 FT MSL…………West 10 to 15 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.

THURSDAY NIGHT… Sky/weather…………………Clear.
* Min Temperature……………..51-62. 24 hr trend………………3 degrees warmer.
* Max Humidity………………..42-60 pct. 24 hr trend………………Little RH change.
* Winds – 20 foot…Slope/Valley..Northwest 5 to 15 mph.
* Winds…10000 FT MSL…………Southwest 10 to 15 mph.
* Chance of Precip…………….0 percent. CWR (>= 0.10 IN)…………….0 percent. LAL………………………..1.

FRIDAY… Sky/weather…………………Sunny.
* Max Temperature……………..77-91. 24 hr trend………………3 degrees warmer.
* Min Humidity………………..15-23 pct. 24 hr trend………………Little RH change.
* Winds – 20 foot…Slope/Valley..West 5 to 15 mph.
* Winds…10000 FT MSL…………West 5 to 15 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):
THURSDAY… Sky/Weather………Sunny.
* Max temperature: Valley floor….89-94. 24 hr trend…..Little change.
* Min humidity: Valley floor….8-14 percent. 24 hr trend…..On average down 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg): Valley floor….South wind up to 10 mph.
* 10000 ft msl….Southwest 20 to 30 mph decreasing to 15 to 20 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..4.
* Mixing height…….9300 ft agl. Transport winds…..South around 10 knots.
* Ventilation………Excellent.

THURSDAY NIGHT… Sky/Weather………Mostly clear.
* Min temperature: Valley floor….61-66. 24 hr trend…..On average up 3 degrees.
* Max humidity: Valley floor….34-39 percent. 24 hr trend…..On average down 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg): Valley floor….South wind around 10 mph in the evening becoming downslope/downvalley 2 to 5 mph.
* 10000 ft msl….Southwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.

FRIDAY… Sky/Weather………Sunny.
* Max temperature: Valley floor….93-98. 24 hr trend…..On average up 4 degrees.
* Min humidity: Valley floor….7-15 percent. 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg): Valley floor….Upslope/upvalley 4 to 8 mph becoming south around 10 mph in the afternoon.
* 10000 ft msl….Southwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.
* Mixing height…….9600 ft agl. Transport winds…..Light winds becoming south around 10 knots in the afternoon.
* Ventilation………Very good.

STATELINE – CLARK COUNTY BORDER (NVZ465):
.THURSDAY… Sky/Weather………Mostly sunny.
* Max temperature: 4000 feet…….83-88. 24 hr trend…..Little change.
* Min humidity: 4000 feet…….10-14 percent. 24 hr trend…..On average down 3 percent.
* Wind (slope/valley=20 ft, 10 min avg): Slope/valley….South winds up to 10 mph.
* 10000 ft msl….Light and variable becoming southwest 10 to 15 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.
* Mixing height…….8900 ft agl. Transport winds…..Light winds becoming southeast around 10 knots in the afternoon.
* Ventilation………Very good.

.THURSDAY NIGHT… Sky/Weather………Mostly clear.
* Min temperature: 4000 feet…….55-60. 24 hr trend…..On average up 3 degrees.
* Max humidity: 4000 feet…….36-41 percent. 24 hr trend…..On average down 2 percent.
* Wind (slope/valley=20 ft, 10 min avg): Slope/valley….West winds up to 10 mph.
* 10000 ft msl….Southwest up to 10 mph.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.

FRIDAY… Sky/Weather………Sunny.
* Max temperature: 4000 feet…….87-92. 24 hr trend…..On average up 4 degrees.
* Min humidity: 4000 feet…….10-14 percent. 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg): Slope/valley….Northwest winds up to 10 mph shifting to the south around 10 mph in the afternoon.
* 10000 ft msl….Southwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. LAL……………..1. Haines Index……..3.
* Mixing height…….9800 ft agl. Transport winds…..Light winds.
* Ventilation………Good.

*La Jolla Ca
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 68. South wind 5 to 10 mph becoming west in the afternoon.
Thursday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 60. West wind around 5 mph becoming south after midnight.
Friday
Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 70. Southeast wind 5 to 10 mph becoming west in the afternoon.
Friday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 60. Northwest wind around 5 mph becoming south after midnight.

*Poway Ca
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 76. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 59. West wind around 5 mph becoming calm.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 78. Southeast wind 5 to 10 mph becoming west in the afternoon.
Friday Night
Mostly clear, with a low around 59. West wind around 5 mph becoming calm in the evening.

*Cedar City Ut.
.DAYS TWO THROUGH SEVEN…Thursday through Tuesday

A deep trough is expected to move to the West Coast this weekend which will result in strong southwest winds and low RH values across much the region Sunday into Tuesday. Fuels becoming drier and low RH with strong winds will elevate fire weather conditions through this period.

Thursday
Sunny, with a high near 72. South southeast wind 5 to 10 mph becoming southwest 11 to 16 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 45. South wind 5 to 14 mph.
Friday
Sunny, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 46. West wind 5 to 9 mph becoming light and variable after midnight.

*************************** L.A COUNTY ********************************
…GUSTY NORTHWEST WINDS AND MODEST DRYING INTO SATURDAY…
LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ548):
THURSDAY… Sky/weather………Mostly cloudy then becoming sunny.
Max temperature…..74-80. 24 hr trend……Up 3.
Min humidity……..35-45 percent. 24 hr trend……Little change.
20-foot winds…….Variable 3-6 mph becoming southwest 6-12 mph with local gusts to 20 mph in the afternoon.
Marine layer……..3000 ft asl. LAL……………..1. CWR (>0.10 IN)……0 percent.

THURSDAY NIGHT… Sky/weather………Clear except areas of low clouds and fog after midnight.
Min temperature…..55-60.
Max humidity……..75-90 percent.
20-foot winds…….Southwest 6-12 mph with local gusts to 20 mph early becoming variable 3-6 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

FRIDAY… Sky/weather………Mostly sunny except areas of morning low clouds and fog.
Max temperature…..76-83.
Min humidity……..30-45 percent.
20-foot winds…….Variable 3-6 mph becoming southwest 6-12 mph with local gusts to 20 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

LOS ANGELES COUNTY SAN FERNANDO VALLEY (CAZ547):
THURSDAY… Sky/weather………Mostly sunny.
Max temperature…..75-82. 24 hr trend……Up 4.
Min humidity……..30-40 percent. 24 hr trend……Little change.
20-foot winds…….North 5-10 mph becoming southeast 6-12 mph with local gusts to 20 mph in the afternoon.
Marine layer……..3000 ft asl. LAL……………..1. CWR (>0.10 IN)……0 percent.

THURSDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..54-60.
Max humidity……..65-85 percent.
20-foot winds…….South 6-12 mph with local gusts to 20 mph early becoming north.
LAL……………..1. CWR (>0.10 IN)……0 percent.

FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..78-84.
Min humidity……..25-35 percent.
20-foot winds…….North 5-10 mph becoming southeast 6-12 mph with local gusts to 20 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

SANTA CLARITA VALLEY (CAZ288):
THURSDAY… Sky/weather………Sunny.
Max temperature…..74-81. 24 hr trend……Up 5.
Min humidity……..25-35 percent. 24 hr trend……Down 6.
20-foot winds…….Northwest 6-12 mph with gusts to 20 mph becoming 8-15 mph with gusts to 25 mph in the afternoon.
Marine layer……..3000 ft asl. LAL……………..1. CWR (>0.10 IN)……0 percent.

THURSDAY NIGHT… Sky/weather………Clear.
Min temperature…..52-57.
Max humidity……..65-80 percent.
20-foot winds…….Northwest 8-15 mph with gusts to 25 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..78-85.
Min humidity……..20-30 percent.
20-foot winds…….Northwest 8-15 mph with gusts to 25 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

SANTA MONICA MOUNTAINS RECREATIONAL AREA (CAZ246):
THURSDAY… Sky/weather………Mostly sunny.
Max temperature…..74-82 except 68-74 higher peaks and coastal slopes. 24 hr trend……Up 5.
Min humidity……..35-55 percent. 24 hr trend……Little change.
20-foot winds……. Valleys/lwr slopes…Southeast 5-10 mph becoming south 6-12 mph with local canyon gusts to 25 mph in the afternoon.
Ridges/upr slopes….East 5-10 mph becoming southwest 6-12 mph in the afternoon.
Marine layer……..3000 ft asl. LAL……………..1. CWR (>0.10 IN)……0 percent.

THURSDAY NIGHT… Sky/weather………Clear then becoming mostly cloudy.
Min temperature…..53-60.
Max humidity……..65-90 percent.
20-foot winds……. Valleys/lwr slopes…South 6-12 mph with local canyon gusts to 20 mph early in the evening becoming north 6-12 mph.
Ridges/upr slopes….Southwest 6-12 mph in the evening becoming north 6-12 mph with gusts to 20 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

FRIDAY… Sky/weather………Mostly cloudy then becoming mostly sunny.
Max temperature…..76-84 except 70-76 higher peaks and coastal slopes.
Min humidity……..25-45 percent.
20-foot winds……. Valleys/lwr slopes…North 6-12 mph becoming south 6-12 mph with local canyon gusts to 25 mph in the afternoon.
Ridges/upr slopes….North 6-12 mph becoming southwest 6-12 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANGELES NATIONAL FOREST (CAZ254):
THURSDAY… Sky/weather………Mostly sunny.
Max temperature…..66-76 low elevations to 56-63 higher elevations and coastal slopes. 24 hr trend……Up 4.
Min humidity……..25-45 percent. 24 hr trend……Down 6.
20-foot winds……. Valleys/lwr slopes…Northwest 15-25 mph with gusts to 40 mph.
Ridges/upr slopes….Northwest 15-25 mph with gusts to 40 mph.
Marine layer……..3000 ft asl. LAL……………..1. CWR (>0.10 IN)……0 percent.

THURSDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..47-56 low elevations to 37-45 colder valleys and peaks.
Max humidity……..60-75 percent except 80-100 percent colder valleys and north slopes.
20-foot winds……. Valleys/lwr slopes…Northwest 20-30 mph with gusts to 50 mph.
Ridges/upr slopes….Northwest 20-30 mph with gusts to 50 mph
LAL……………..1. CWR (>0.10 IN)……0 percent.

FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..72-82 low elevations to 62-69 higher elevations.
Min humidity……..30-45 percent except 15-30 percent higher peaks and warmer valleys.
20-foot winds……. Valleys/lwr slopes…Northwest 15-25 mph with gusts to 40 mph.
Ridges/upr slopes….Northwest 15-25 mph with gusts to 40 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANTELOPE VALLEY (CAZ259):
THURSDAY… Sky/weather………Sunny.
Max temperature…..70-78. 24 hr trend……Little change.
Min humidity……..15-30 percent. 24 hr trend……Little change.
20-foot winds…….West 15-25 mph with gusts to 40 mph becoming 20-30 mph with gusts to 45 mph in the afternoon.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

THURSDAY NIGHT… Sky/weather………Clear.
Min temperature…..46-53.
Max humidity……..65-80 percent.
20-foot winds…….West 20-30 mph with gusts to 50 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..76-84.
Min humidity……..15-30 percent.
20-foot winds…….West 15-25 mph with gusts to 40 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

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THIS DAY IN WEATHER HISTORY:
2015: A strong late-season winter storm, along with some thunderstorms, hit the region. San Diego reported 1.30 inches of rain in one hour. A nine-minute period within that main hour totaled 0.71 inch, which is near the 1/100 return interval. The amount of 1.63 inches on this day broke the daily rainfall record for any day in May. Flooding in Mission Hills and Midway District of San Diego was up to four feet deep. Several swift water rescues were made for people trapped in flooded vehicles.

2014: Strong high pressure and a strong late-season Santa Ana wind event combined to bring record high temperatures exceeding 100° to most of the lower elevations from 5/13 to 5/15. Many all-time high temperature records for the month of May were broken. On this day temperatures soared into the 100s across the region. The hottest day was 5/15 when it was 106° in Yorba Linda and the San Diego Wild Animal Park. The strong Santa Ana winds gusted to 40 to 45 mph in parts of the coast and valleys, and 60 to 80 mph in the foothills. The winds knocked down many trees and power lines, and blew off some roof tiles. 14 fires erupted in San Diego County, killing one, burning over 27,000 acres and causing more than $50 million in property damage. The Poinsettia fire in Carlsbad and the Cocos Fire in San Marcos damaged homes.

1918: The temperature dropped to 30° in Victorville, tied for the second coldest night in May during a long cold spell.

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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. @ 0735 Hrs. TEMP: 540 RH: 71% WIND: W 2 G 9
7.20” 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 )
National Fire Activity:
Initial attack activity: Light (126 new fires)
New large incidents: 3
Large fires contained: 0
Uncontained large fires:*** 11
Area Command teams committed: 0
NIMOs committed: 1
Type 1 IMTs committed: 0
Type 2 IMTs committed: 1

Daily statistics 5/13/20
Number of new large fires or emergency response 1 States currently reporting large fires:
Number of active large fires
Total does not include individual fires within complexes. 12 Alabama (1)
Arizona (1)
Florida (8)
Nevada (1)
New Mexico (1)
Acres from active fires 70,714
Fires contained 0
Year-to-date statistics
2020 (1/1/20 – 5/13/20) Fires: 14,701 Acres: 318,892
2019 (1/1/19 – 5/13/19) Fires: 12,177 Acres: 232,046
2018 (1/1/18 – 5/13/18) Fires: 20,782 Acres: 1,472,459
2017 (1/1/17 – 5/13/17) Fires: 22,025 Acres: 2,096,277
2016 (1/1/16 – 5/13/16) Fires: 17,539 Acres: 1,512,526
2015 (1/1/15 – 5/13/15) Fires: 18,544 Acres: 361,331
2014 (1/1/14 – 5/13/14) Fires: 21,783 Acres: 433,292
2013 (1/1/13 – 5/13/13) Fires: 14,766 Acres: 176,567
2012 (1/1/12 – 5/13/12) Fires: 19,349 Acres: 399,980
2011 (1/1/11 – 5/13/11) Fires: 25,189 Acres: 2,572,519
2010 (1/1/10 – 5/13/10) Fires: 23,483 Acres: 345,949
10-year average Year-to-Date
2010-2019 Fires: 19,475 Acres: 953,951

Active Incident Resource Summary
GACC Incidents Cumulative Acres Crews Engines Helicopters Total Personnel
AICC 0 0 0 0 0 0
NWCC 0 0 0 0 0
ONCC 0 0 0 0 0 0
OSCC 0 0 0 0 0 0
NRCC 0 0 0 0 0 0
GBCC 3 40,371 11 22 8 452
SWCC 1 475 4 50 0 122
RMCC 1 70 1 3 1 37
EACC 2 690 0 5 0 17
SACC 23 34,886 1 53 10 494
Total 30 76,492 17 88 20 1,122

CDF FIRES TO DATE (STATE LANDS SRA)

Number of Fires and Acres:
Interval Fires Acres
January 1, 2020 through May 10, 2020 1,135 1,317
January 1, 2019 through May 10, 2019 675 1,298
5-Year Average (same interval) 953 4,757
2020 Combined YTD (CALFIRE & US Forest Service) 1,289 1,925

Southern California Area (PL 1 )
No Reportable Incidents

Northern California Area (PL 1 )
No Reportable Incidents

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