WEATHER 5/17/20

DAILY FIRE WEATHER & FIRE INFO
ALL UNITS From:

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Date: 5/17/20

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.: 36

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
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SOUTH OPS WX:
ꞏ Southerly to southwesterly winds of 25 to 35 mph, gusting to 50 mph, will overlap humidity’s of 8 to 15% over a period of 4 to 6 hours this afternoon through Inyo and southern Mono County.

ꞏ An amplified onshore gradient will produce strong S-SW winds of 20 to 30 mph each evening through mountain passes and into adjacent valleys and deserts. Gusty northerly winds of 15 to 25 mph will surface Wednesday and Thursday evening through Santa Barbara County.

ꞏ Highs will be a bit cooler today with mountains reaching the 60’s to low 70’s and valleys in the mid 70’s to mid 80’s. Temperatures will decrease to approximately 10 degrees below average by Tuesday

ꞏ Showers will develop Monday through Wednesday with the arrival of the low-pressure system aloft. Totals wil be meager outside of the Sierras remaining under a quarter of an inch.

ꞏ Afternoon minimum humidity’s will continue to be under 30% for the mountains and deserts at least for the next couple of days. Stronger onshore flow will guide moisture further inland early next week, increasing humidity’s for the mountains.

ꞏ A weak ridge will increase temperatures to near normal by Thursday before highs decrease below normal this upcoming weekend.

SYNOP: (NWS SAN DIEGO)
Dry, seasonal weather is expected today, with areas of low clouds this morning over the coastal areas and patchy fog in the valleys. By late tonight and into Monday morning, low clouds will surge inland to the mountain foothills, and patchy light rain will break out west of the mountains. There will be another chance for light rain and drizzle Monday night into Tuesday as a storm system moves inland over Northern California. Westerly winds will be strong and gusty over the mountains and deserts, and it will be colder. The latter half of next week will bring a return to milder and fair conditions, with temperatures near seasonal norms.
NWS SAN DIEGO

KEY POINTS

. Strong west winds will affect mountains, passes, and deserts Monday-Tuesday.

. Light showers expected Monday morning through Tuesday morning, with low impact.

CONFIDENCE AND DETAILS

Gusty West Winds to Affect Mountain/Passes/Deserts Monday into Tuesday

High Confidence

Moderately strong west winds will affect east-facing mountains slopes, passes and the deserts Monday into Tuesday.

Forecast Details

. What: West winds 20-30 mph, with gusts to 45 mph (locally 55 mph for wind-prone locations). These strong winds will result in dangerous driving conditions for high profile vehicles, especially along I-10 through
San Gorgonio Pass, and I-8 east of Boulevard.

. Where: Desert-facing mountain slopes, passes, and deserts.

. When: Monday and Tuesday, with strongest winds Monday evening/night.

Light Showers Expected Mon-Tue From Coast to Mountains

High Confidence

Mostly light showers with low-end accumulations will affect areas from the coast to the mountain slopes Sunday night through Tuesday morning.

Forecast Details

. What: Generally light showers, accumulating a few hundredths for coastal/valley areas, and with highest amounts of a few tenths confined to the foothills and coastal slopes.

. Where: All areas except the deserts.

. When: Monday morning through Tuesday morning, with the most widespread showers occurring Monday evening into Monday night.

SUMMARY

Today will be the warmest of the next seven days, with progressively cooler conditions through Tuesday. A deepening marine layer will accompany this cooling, and bring some patchy fog to portions of the inland valleys each night. The approaching weak system will be responsible for strengthening west winds Monday and Tuesday, bringing gusty winds to the mountains and deserts. Some light showers will be possible late Sunday night through Tuesday morning, but they will be low-impact, with accumulations of a few hundredths to a few tenths of an inch (highest on the coastal slopes). No rain is expected for the deserts.

Drier weather is in store for the second half of the week, with temperatures warming Wednesday and Thursday before starting another decline late week.

NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)
Widespread dry and gusty conditions are expected today resulting in a period of critical fire weather. Greatest
fire danger today will be across central and southern Nevada as well as eastern California, before expanding east into Northwest Arizona on Monday. A quick round of showers and thunderstorms will be possible Tuesday across the Sierra and southern Great Basin, but dry and calmer conditions will follow for the remainder of the
week.

NWS LAS VEGAS

Key Points:

. Issued a High Wind Watch for the Sierra and Owens Valley for Sunday afternoon and evening.

. Issued wind advisories for eastern Inyo County and much of the Southern Great Basin region.

. Upgraded Fire Weather Watches to Red Flag Warnings.

CHANGES SINCE PREVIOUS BRIEFING

High Wind Watch issued for Sierra and Owens Valley (Sun)

Wind advisories issued for eastern Inyo county and much of the Southern Great Basin.

Upgraded Fire Weather Watches to Red Flag Warnings

Added parts of Mohave Co to Red Flag Warning (Mon)

CONFIDENCE AND DETAILS

Sunday – Tuesday

HIGHConfidence

Extreme fire behavior and rapid fire growth potential.

Hazardous crosswinds, especially for high profile vehicles.

Loose or unsecured objects may be blown away.

Dangerous boating conditions on Lake Mead due to strong winds and significant wave activity.

Temporary fences and structures may be damaged

Travel delays at McCarran International Airport due to strong winds.

Nuisance flooding over portions of Inyo, Esmeralda, central Nye, and Lincoln Counties.

Details:

Potential Impacts Sun-Tues

Boating Impacts

Expecting significant wave activity on area lakes which could exceed 2 ft creating hazardous boating conditions.

Wildfire Potential

Another round of dry and windy conditions will lead to the possibility for rapid wildfire growth, especially during the afternoon hours.

Wind Impacts

Brief power outages, hazardous crosswinds for high profile vehicles, and displacement or damage to unsecured temporary structures will be possible.

Downslope Winds

Strong downslope winds with gusts exceeding 60 mph are possible in the Owens Valley Sunday afternoon.

Parts of US-395, especially south of Independence, may see strong crosswinds.

Thunderstorm Potential

Greatest threat will remain across Inyo and Esmeralda Counties Monday followed by Inyo, Esmeralda, central Nye, and Lincoln Counties Tuesday.

Gusty winds and lightning will be the main concerns with any storms. Some nuisance flooding possible.

SPECIAL NOTES:
N/A

DAILY FUELS/FIRE POTENTIAL:
A brief window of moderate to elevated large fire potential will exist this afternoon through Inyo and southern Mono County. Winds of 25 to 35 mph, occasionally gusting up to 50 mph, will couple with extremely low humidity’s of 8 to 15% to produce favorable large fire conditions should an ignition occur. Fuels are not extremely dry and will act as a limiting factor with the most conducive being the finer fuels types that have cured. Winds will be gusty once again tomorrow afternoon and evening but an increase in humidity will somewhat lessen the threat for tomorrow. Cooler and more humid weather will diminish large fire potential after Monday with initial attack activity being light for the rest of the forecast period.

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

————————————————————————————–
APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):
TODAY… Sky/weather………Mostly sunny…becoming partly cloudy.
Max temperature…..84 to 94. 24 HR TREND……Down 1 degree.
Min humidity……..10 to 15 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds south 6 to 16 mph. Gusts to 25 mph…becoming 35 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..49 to 56. 24 HR TREND……Down 4 degrees.
Max humidity……..70 to 80 percent. 24 HR TREND……Up 30 percent.
WIND (20 FT)……..Winds southwest 6 to 16 mph. Gusts to 35 mph…becoming 25 mph after midnight.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.MONDAY… Sky/weather………Partly cloudy.
Max temperature…..76 to 86. 24 HR TREND……Down 14 degrees.
Min humidity……..20 to 30 percent. 24 HR TREND……Up 25 percent.
WIND (20 FT)……..Winds southwest 7 to 17 mph. Gusts to 25 mph…becoming 35 mph in the afternoon.
CWR (>0.10 IN)……5 percent. LAL……………..1.

*WRIGHTWOOD:
Today
Sunny, with a high near 69. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 45. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A chance of rain. Mostly sunny, with a high near 58. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

*BIG PINES / WEST WRIGHTWOOD AREA
Today
Sunny, with a high near 66. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 43. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.
Monday
A 40 percent chance of rain, mainly after 11am. Partly sunny, with a high near 54. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.

*PHELAN:
Today
Mostly sunny, with a high near 77. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 50. South wind around 10 mph.
Monday
A slight chance of rain after 11am. Mostly sunny, with a high near 65. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

TRONA (INDIAN WELLS) (CAZ298):
TODAY… Sky/weather………Mostly sunny.
Max Temperature…..84-89. 24 HR Trend……Down 1-3 degrees.
Min Humidity……..10-19 percent. 24 HR Trend……Little change.
20-Foot Winds…….Southwest 3-14 mph in the early morning increasing to 12-17 mph by afternoon.
LAL……………..1.
Ventilation………Excellent.
Mixing height…….9100 ft AGL.
Transport Winds…..Southwest around 10 mph in the morning increasing to around 25 mph in the afternoon.
Chc Wetting Rain….0 percent.

.TONIGHT… Sky/weather………Mostly clear.
Min Temperature…..55-60. 24 HR Trend……Little change.
Max Humidity……..65-75 percent. 24 HR Trend……Up 13-29 percent.
20-Foot Winds…….Southwest 4-16 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

.MONDAY… Sky/weather………Mostly sunny.
Max Temperature…..72-77. 24 HR Trend……Down 7-17 degrees.
Min Humidity……..32-42 percent. 24 HR Trend……Up 14-26 percent.
20-Foot Winds…….Southwest 4-16 mph in the early morning increasing to 11-17 mph by afternoon.
LAL……………..1.
Ventilation………Excellent.
Mixing height…….7900 ft AGL.
Transport Winds…..Southwest 20 to 25 mph.
Chc Wetting Rain….0 percent.

BARSTOW / DAGGETT / BAKER / FT. IRWIN (CAZ228):
TODAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….94-99. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….10-18 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southwest wind around 10 mph increasing to 15 to 20 mph in the afternoon. Gusts up to 40 mph.
* 10000 ft msl….Southwest 20 to 30 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.TONIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….53-58. * 24 hr trend…..On average down 5 degrees.
* Max humidity: * Valley floor….49-54 percent. * 24 hr trend…..On average up 8 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southwest wind 10 to 15 mph. Gusts up to 35 mph decreasing to 25 mph after midnight.
* 10000 ft msl….South 20 to 30 mph increasing to 25 to 35 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.MONDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….90-95. * 24 hr trend…..On average down 4 degrees.
* Min humidity: * Valley floor….15-25 percent. * 24 hr trend…..On average up 6 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southwest wind 10 to 15 mph with gusts to around 35 mph.
* 10000 ft msl….Southwest 25 to 35 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

*BAKER:
Today
Mostly sunny, with a high near 99. South wind 8 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 64. West southwest wind 12 to 17 mph becoming south 5 to 10 mph in the evening. Winds could gust as high as 26 mph.
Monday
Sunny, with a high near 90. South southeast wind 7 to 10 mph becoming southwest in the afternoon.

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS (CAZ226):
WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
11 PM PDT THIS EVENING
RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM PDT THIS EVENING FOR STRONG WINDS AND LOW RH

TODAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….86-91. * 7000 feet…….73-78. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….9-11 percent. * 7000 feet…….13-23 percent. * 24 hr trend…..On average down 5 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 20 mph. Gusts up to 25 mph increasing to 35 mph in the afternoon.
* Upper slopes….Southwest winds 10 to 15 mph with gusts to around 40 mph increasing to 15 to 25 mph with gusts to around 50 mph in the afternoon.
* 10000 ft msl….Southwest 10 to 15 mph increasing to 15 to 25 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TONIGHT…
* Sky/Weather………Partly cloudy. Scattered snow showers and isolated showers after midnight.
* Min temperature: * Valley floor….54-59. * 7000 feet…….26-31. * 24 hr trend…..On average down 2 degrees.
* Max humidity: * Valley floor….56-61 percent. * 7000 feet…….65-70 percent. * 24 hr trend…..On average up 22 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 15 mph. Gusts up to 35 mph decreasing to 25 mph after midnight.
* Upper slopes….Southwest winds 15 to 25 mph. Gusts up to 55 mph decreasing to 40 mph after midnight.
* 10000 ft msl….Southwest 15 to 20 mph.
* CWR (>= 0.10 in)….10 percent increasing to 20 percent after midnight.
* LAL……………..1. * Haines Index……..4.

.MONDAY… * Sky/Weather………Mostly sunny. Scattered showers and snow showers.
* Max temperature: * Valley floor….74-79. * 7000 feet…….59-64. * 24 hr trend…..On average down 13 degrees.
* Min humidity: * Valley floor….13-23 percent. * 7000 feet…….29-39 percent. * 24 hr trend…..On average up 12 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 20 mph with gusts to around 35 mph.
* Upper slopes….Windy. Southwest winds 20 to 30 mph with gusts to around 50 mph.
* 10000 ft msl….Southwest 15 to 25 mph.
* CWR (>= 0.10 in)….20 percent decreasing to 10 percent in the afternoon.
* LAL……………..1. * Haines Index……..4.

KERN CO. DESERTS (CAZ299):
TODAY… Sky/weather………Mostly sunny.
Max Temperature…..79-84. 24 HR Trend……Down 2-4 degrees.
Min Humidity……..26-36 percent. 24 HR Trend……Little change.
20-Foot Winds…….Southwest 3-14 mph in the early morning increasing to 5-17 mph by afternoon.
LAL……………..1.
Ventilation………Excellent.
Mixing height…….8400 ft AGL.
Transport Winds…..West around 10 mph in the morning increasing to southwest around 20 mph in the afternoon.
Chc Wetting Rain….0 percent.

.TONIGHT… Sky/weather………Mostly clear.
Min Temperature…..52-57. 24 HR Trend……Little change.
Max Humidity……..75-85 percent. 24 HR Trend……Up 18-34 percent.
20-Foot Winds…….Southwest 5-17 mph in the early evening decreasing to 3-11 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

.MONDAY… Sky/weather………Mostly sunny. Slight chance of rain.
Max Temperature…..67-72. 24 HR Trend……Down 7-17 degrees.
Min Humidity……..52-62 percent. 24 HR Trend……Up 15-31 percent.
20-Foot Winds…….Southwest 5-17 mph.
LAL……………..1.
Ventilation………Excellent.
Mixing height…….7100 ft AGL.
Transport Winds…..Southwest 20 to 25 mph.
Chc Wetting Rain….0 percent.

INLAND EMPIRE (CAZ248):
TODAY… Sky/weather………Partly cloudy.
Max temperature…..78 to 85. 24 HR TREND……Down 1 degree.
Min humidity……..30 to 40 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Winds southwest 6 to 11 mph. Gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Partly cloudy. Patchy fog after midnight.
Min temperature…..52 to 58. 24 HR TREND……Down 1 degree.
Max humidity……..85 to 95 percent. 24 HR TREND……Up 10 percent.
WIND (20 FT)……..Winds southwest 6 to 11 mph with gusts to 20 mph in the evening becoming variable 2 to 5 mph.
CWR (>0.10 IN)……1 percent. LAL……………..1.

.MONDAY… Sky/weather………Mostly cloudy…becoming partly cloudy. Patchy fog in the morning. Areas of drizzle and slight chance of rain in the morning, then chance of rain in the afternoon.
Max temperature…..69 to 76. 24 HR TREND……Down 10 degrees.
Min humidity……..50 to 60 percent. 24 HR TREND……Up 20 percent.
WIND (20 FT)……..Variable 3 to 6 mph becoming west 6 to 11 mph with gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……15 percent. LAL……………..1.

*DEVORE:
Today
Mostly sunny, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers after 11pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 55. Southwest wind 5 to 10 mph becoming southeast after midnight. Chance of precipitation is 20%.
Monday
Areas of drizzle with a chance of rain before 11am, then a chance of rain after 11am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 69. Southeast wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

*CHINO HILLS:
Today
Mostly sunny, with a high near 79. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 58. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Areas of drizzle with a chance of rain before 11am, then a chance of rain after 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 70. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

*COLTON:
Today
Mostly sunny, with a high near 85. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 58. Southwest wind 5 to 10 mph becoming light in the evening.
Monday
Areas of drizzle with a slight chance of rain before 11am, then a chance of rain after 11am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 74. Light south wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

SAN BERNARDINO N.F. (CAZ255):
TODAY… Sky/weather………Mostly sunny…becoming partly cloudy.
Max temperature…..65 to 75 above 6000 feet to 69 to 79 below 6000 feet. 24 HR TREND……Down 4 degrees.
Min humidity……..10 to 15 percent on desert slopes to 25 to 35 percent on coastal slopes. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..
SLOPES………..Winds southwest 6 to 15 mph with gusts to 30 mph.
RIDGETOP………Winds southwest 7 to 11 mph with gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Mostly clear.
Min temperature…..36 to 46 above 6000 feet to 41 to 51 below 6000 feet. 24 HR TREND……Down 11 degrees.
Max humidity……..30 to 40 percent on desert slopes to 75 to 85 percent on coastal slopes. 24 HR TREND……Down 15 percent.
WIND (20 FT)……..
SLOPES………..Winds south 6 to 14 mph with gusts to 30 mph.
RIDGETOP………Winds southwest 8 to 13 mph with gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.MONDAY… Sky/weather………Partly cloudy. Patchy fog. Chance of rain.
Max temperature…..55 to 65 above 6000 feet to 66 below 6000 feet. 24 HR TREND……Down 12 degrees.
Min humidity……..15 to 25 percent on desert slopes to 25 to 35 percent on coastal slopes. 24 HR TREND……Up 10 percent.
WIND (20 FT)……..
SLOPES………..Winds west 6 to 15 mph with gusts to 30 mph.
RIDGETOP………Winds southwest 6 to 15 mph with gusts to 30 mph.
CWR (>0.10 IN)……8 percent. LAL……………..1.

*LAKE ARROWHEAD SCHOOL- AREA:
Today
Sunny, with a high near 66. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 45. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A chance of rain. Patchy fog. Otherwise, mostly sunny, with a high near 56. South wind 10 to 15 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.

*BIG BEAR SCHOOL AREA:
Today
Sunny, with a high near 66. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 38. Southwest wind 5 to 10 mph.
Monday
A slight chance of rain. Mostly sunny, with a high near 58. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

BANNING PASS (CAZ265):
TODAY… Sky/weather………Mostly sunny.
Max temperature…..95 to 100. 24 HR TREND……Little change.
Min humidity……..15 to 20 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Winds southeast 6 to 14 mph. Gusts to 30 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……Down 4 degrees.
Max humidity……..35 to 45 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds northwest 6 to 16 mph with gusts to 35 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.MONDAY… Sky/weather………Mostly sunny.
Max temperature…..89 to 94. 24 HR TREND……Down 8 degrees.
Min humidity……..20 to 25 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Winds west 8 to 18 mph. Gusts to 30 mph…becoming 40 mph in the afternoon.
CWR (>0.10 IN)……3 percent. LAL……………..1.

JOSHUA TREE AREA (CAZ230):
TODAY… * Sky/weather…………………Mostly sunny.
* Max Temperature……………..79-94. * 24 hr trend………………Little change.
* Min Humidity………………..19-27 pct. * 24 hr trend………………5 pct wetter.
* Winds – 20 foot…Slope/Valley..South 5 to 10 mph in the morning becoming southwest 10 to 20 mph in the afternoon.
* Winds…10000 FT MSL…………Southwest 15 to 25 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……………..51-64. * 24 hr trend………………5 degrees cooler.
* Max Humidity………………..32-44 pct. * 24 hr trend………………11 pct drier.
* Winds – 20 foot…Slope/Valley..West 5 to 15 mph.
* Winds…10000 FT MSL…………Southwest 20 to 30 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.

.MONDAY… * Sky/weather…………………Sunny.
* Max Temperature……………..72-90. * 24 hr trend………………5 degrees cooler.
* Min Humidity………………..14-33 pct. * 24 hr trend………………Little RH change.
* Winds – 20 foot…Slope/Valley..Southwest 5 to 15 mph.
* Winds…10000 FT MSL…………Southwest 25 to 35 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.

NEEDLES, RIVER BAT. (CAZ229):
TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….97-102. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….8-16 percent. * 24 hr trend…..On average up 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind 10 to 20 mph. Gusts up to 30 mph increasing to 40 mph in the afternoon.
* 10000 ft msl….South 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…….9900 ft agl.
* Transport winds…..South 10 to 20 knots.
* Ventilation………Excellent.

.TONIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….67-72. * 24 hr trend…..Little change.
* Max humidity: * Valley floor….31-36 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind 10 to 15 mph. Gusts up to 35 mph in the evening.
* 10000 ft msl….South 25 to 35 mph increasing to 30 to 40 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.MONDAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….95-100. * 24 hr trend…..On average down 2 degrees.
* Min humidity: * Valley floor….7-15 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind 10 to 20 mph.
* 10000 ft msl….South 35 to 45 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….9700 ft agl.
* Transport winds…..South 10 to 20 knots.
* Ventilation………Excellent.

STATELINE – CLARK COUNTY BORDER (NVZ465):
TODAY… * Sky/Weather………Mostly sunny.
* Max temperature: * 4000 feet…….92-97. * 24 hr trend…..Little change.
* Min humidity: * 4000 feet…….10-16 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 15 mph with gusts to around 30 mph increasing to 15 to 25 mph with gusts to around 40 mph in the afternoon.
* 10000 ft msl….Southwest 25 to 35 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….10800 ft agl.
* Transport winds…..South 10 to 20 knots.
* Ventilation………Excellent.

.TONIGHT… * Sky/Weather………Partly cloudy.
* Min temperature: * 4000 feet…….59-64. * 24 hr trend…..On average down 3 degrees.
* Max humidity: * 4000 feet…….34-39 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 15 mph. Gusts up to 35 mph in the evening.
* 10000 ft msl….South 30 to 40 mph increasing to 35 to 45 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.MONDAY… * Sky/Weather………Sunny.
* Max temperature: * 4000 feet…….88-93. * 24 hr trend…..On average down 4 degrees.
* Min humidity: * 4000 feet…….10-18 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 20 mph.
* 10000 ft msl….South 35 to 45 mph decreasing to 30 to 40 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….10200 ft agl.
* Transport winds…..Southwest 10 to 15 knots.
* Ventilation………Excellent.

*La Jolla Ca
Today
Patchy fog before 11am. Otherwise, partly sunny, with a high near 68. South wind 5 to 10 mph becoming west in the afternoon.
Tonight
Mostly cloudy, with a low around 61. West wind around 5 mph.
Monday
Areas of drizzle with a slight chance of rain before 11am. Partly sunny, with a high near 68. North wind 5 to 10 mph becoming south in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

*Poway Ca
Today
Patchy fog before noon. Otherwise, mostly sunny, with a high near 78. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Tonight
Mostly cloudy, with a low around 59. West wind around 5 mph becoming calm in the evening.
Monday
Areas of drizzle before noon. Partly sunny, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the afternoon.

*Cedar City Ut.
Today and Tonight

Strengthening southerly winds will result in breezy to windy conditions across the outlook area today. A very warm airmass in place will also allow temperatures to run well above normal. The combination of gusty winds, very warm temperatures and very low humidity will result in critical fire weather conditions where fuels are sufficiently dry across southern Utah.

.DAYS TWO THROUGH SEVEN…Monday through Saturday

Southerly flow will strengthen Monday resulting in windy to very windy conditions across the outlook area, while a very warm and dry airmass remains in place. This will result in a continuation of critical fire weather conditions across portions of southern Utah where fuels are dry.

A cold front will cross the outlook area Tuesday bringing cooler temperatures and unsettled weather for the midweek period.

Today
Mostly sunny, with a high near 78. Breezy, with a south wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon.
Tonight
Mostly clear, with a low around 55. Breezy, with a south wind 16 to 23 mph.
Monday
Sunny, with a high near 75. Breezy, with a south southeast wind 15 to 20 mph increasing to 23 to 28 mph in the afternoon.

*************************** L.A COUNTY ********************************
LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ548):
Today
Mostly sunny, with a high near 80. Light south southeast wind becoming south southwest 5 to 10 mph in the afternoon.
Tonight
Increasing clouds, with a low around 59. South wind 5 to 10 mph.
Monday
Rain likely, mainly after 11am. Partly sunny, with a high near 72. South southwest wind around 5 mph. Chance of precipitation is 60%.

LOS ANGELES COUNTY SAN FERNANDO VALLEY (CAZ547):
Today
Sunny, with a high near 79. South southeast wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 59. South wind 5 to 10 mph.
Monday
Rain likely. Partly sunny, with a high near 71. South wind 5 to 10 mph. Chance of precipitation is 60%.

SANTA CLARITA VALLEY (CAZ288):
Today
Sunny, with a high near 81. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 57. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Rain likely, mainly before noon. Mostly cloudy, with a high near 71. Breezy, with a south southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%.

SANTA MONICA MOUNTAINS RECREATIONAL AREA (CAZ246):
Today
Mostly sunny, with a high near 69. East southeast wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Tonight
Mostly cloudy, with a low around 55. West southwest wind 10 to 15 mph.
Monday
Rain likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 63. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

ANGELES NATIONAL FOREST (CAZ254):
Today
Sunny, with a high near 72. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 51. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Rain likely, mainly after 11am. Partly sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

ANTELOPE VALLEY (CAZ259):
Today
Sunny, with a high near 85. Breezy, with a west southwest wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.
Tonight
Partly cloudy, with a low around 54. Breezy, with a west southwest wind 15 to 25 mph, with gusts as high as 35 mph.
Monday
Mostly sunny, with a high near 72. Breezy, with a west southwest wind 15 to 25 mph, with gusts as high as 40 mph.

============================================================
THIS DAY IN WEATHER HISTORY:
1997: It was 91° in Palomar Mountain, the highest temperature on record for May. This also occurred on 5/28/2003 and 5/31/2001. This date also represents the earliest date of the season on record with a temperature reading of 90° or higher.

1892: A springtime heat wave resulting from Santa Ana conditions hit Southern California starting on this day and ending on 5/19. Temperatures met or exceeded 95° in LA each day, including 96° on this day.
==================================================================
TROPICAL EAST PACIFIC REPORT:
There are no tropical cyclones in the Eastern North Pacific at this time.

======================================================================
CURRENT WEATHER @ HESP. @ 0819 Hrs. TEMP: 620 RH: 59% WIND: CALM
7.20” RF @ HESP. STA.SINCE OCT. 1st/20 Yr Avg: 7.12” : MONTH: 0.00” YTD S/F: 4.50”
=================================================================
FIRES: UPDATED

National Preparedness Level (PL 1 )
National Fire Activity:
Initial attack activity: Light (183 new fires)
New large incidents: 1
Large fires contained: 2
Uncontained large fires:*** 10
Area Command teams committed: 0
NIMOs committed: 1
Type 1 IMTs committed: 0
Type 2 IMTs committed: 2

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 0
ONCC 0 0 0 0 0 0
OSCC 0 0 0 0 0 0
NRCC 0 0 0 0 0 0
GBCC 3 40,940 10 15 7 384
SWCC 1 475 2 4 0 70
RMCC 1 70 0 3 0 11
EACC 2 690 0 5 0 17
SACC 28 43,565 1 50 10 423
Total 35 85,740 13 77 17 905

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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