FIRE WEATHER 8/8/19

DAILY FIRE WEATHER & FIRE INFO
To: ALL UNITS From:
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Date: 8/8/19

SKYWARN: NORMAL
NETS ON WED NIGHT @1900 HEAPS PK./WX
SKYWARN NET TUESDAY @ 1900 HRS TABLE Mt.
BRIEFS TABLE MT. ON SUN @ 1800 HRS

DAYS NO R.F. @ STA.:78

National Preparedness Level (PL 3 )

Southern California Area Preparedness Level: (PL 2 )

Northern California Area Preparedness Level (PL 2 )

GREEN = PL: 1 BLUE – PL:2 YELLOW = PL:3 ORANGE = PL:4 RED = PL: 5
==============================================================================
SYNOP: (NWS SAN DIEGO)
Dry weather is expected to persist through at least the middle of next week. A low pressure system moving inland along the West Coast will bring a slow cooling trend into Saturday. This will be followed by a slow warming trend for Sunday into the middle of next week from high pressure to the south. A marine layer near 1500 to 1800 feet deep into Saturday, will decrease to around 1200 to 1500 feet deep for the early to middle part of next week.
High clouds will continue to stream into Southern CA today which, along with onshore flow, will result in cooler temperatures today. As a trough moves into the Pacific Northwest, expect further cooling Thursday through Saturday. Isolated wet thunderstorms will be possible over some sections of Southern CA today with additional thunderstorms expected on the Sierra Crest, mainly Thursday. Gusty north winds will be possible in Santa Barbara County during the night and morning hours the next 2 days.

· Highs today will range from the 70s at the coast and in the mountains to the upper 90s in the valleys. By Friday, expect valley highs to be in the upper 80s to lower 90s. A slow warming trend will begin early next week.

· Minimum RH will drop into the 10-15% range today over many elevations above 5,000 feet.

· Isolated thunderstorms will occur again today on the east side of the Cleveland and San Bernardino N.F. and near the Sierra Crest (there were 9 lightning strikes east of the CNF yesterday). No storms are expected Friday and beyond.

· Local northwest winds of 10-20 mph along the central coast during the afternoon hours. Local north winds of 20-30 mph possible this morning and again the next two nights in Santa Barbara County.

· There will be westerly winds of 15 to 25 mph with gusts to 35 mph in the desert interface regions the next few afternoons

NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)
Potential for isolated to scattered thunderstorms continues today across all but the far western Mojave Desert.
Drier air moving in from the west will flush out monsoon moisture and bring an end to thunderstorm activity Friday through the weekend. Dry and seasonal conditions are expected to continue into
the middle of next week.

KEY POINTS
Isolated to scattered thunderstorms possible over all but the far western Mojave Desert Region west of Barstow.

Storm movement will be toward the northeast at 15 to 25 mph.

Dry and stable conditions will spread across most of the region tonight and Friday.

FLASH FLOOD POTENTIAL INDEX FOR EXTREME SOUTHWESTERN CALIFORNIA

DRY WEATHER IS EXPECTED TO PERSIST THROUGH AT LEAST THE MIDDLE OF NEXT WEEK

Inland Empire
NONE NONE
San Bernardino County Mountains
NONE NONE
High Desert Including Apple and Lucerne Valleys NONE NONE
San Gorgonio Pass Near Banning NONE NONE

Flash Flood Codes: GREEN: NONE YELLOW: LOW ORANGE: MODERATE RED: HIGH

SPECIAL NOTES:
BI-MONTHLY FUELS DISCUSSION
For Southern and Central California
Updated: Tuesday, August 6th, 2019
General Discussion:

Seasonally warm and dry conditions continued during the second half of July into early August. But a few warmer than normal periods did occur around the 1st of August as high pressure remained over the Southwest. Even though the high pressure ridge was centered in a favorable position over the Four Corners region, little moisture made its way into California during the past two weeks. Thus, the string of days without convection continued over nearly the entire region.

The sunny, warm weather caused fuel moisture to be pushed lower – especially across inland areas away from the influence of the marine layer. The lack of a summer monsoon, resulting in sunny afternoon conditions, was a prime cause behind the rapid drying of fuels in the mountains. Ordinarily, the Sierras experience wetting rains, or at least some cloud cover, during many summer days. The absence of clouds allowed dead fuel moisture to continue to drop; reaching well below normal readings across the Sierra Foothills by early August. Other areas, while not quite as dry, are near to a bit below normal in terms of dead fuel moisture. Live fuels are also drying quickly but still retain a bit above normal fuel moisture for this time of year.

There is little in the long-term weather pattern to hint at much of a change during the next two weeks. The district looks to be situated between the trough off the Pacific Northwest coast and the strong ridge over the Southwest. As the two vie for supremacy, expect the weather pattern to fluctuate between seasonally warm temperatures followed by hot weather, with a 5-7 day cycle between the two. Southwesterly flow aloft continuing practically insures that monsoonal moisture will remain east of the district through the middle of August.

DAILY FUELS/FIRE POTENTIAL:

• Fire Danger / Dispatch Levels / Burn Status

• VALLEY: HIGH HIGH SRA: SUSPENDED LOCAL: NO

• DESERT: HIGH HIGH SRA: SUSPENDED LOCAL: YES

• MOUNTAINS: HIGH HIGH SRA: SUSPENDED LOCAL: NO

• OWENS VALLEY: HIGH HIGH SRA: SUSPENDED LOCAL: YES

• Burn Index and Ignition Component:

• OWENS VALLEY: BI: 47 IC: 30

• OAK CREEK: BI: 44 IC: 26

• FAWNSKIN: BI: 00 IC:00

• BDF MILL CREEK: BI: 106 IC: 57

• YUCCA VALLEY: BI: 71 IC: 54

• DEVORE: BI: 82 IC: 46

• MORMON ROCK: BI: 102 IC: 54

• HEAPS PEAK: BI: 21 IC: 23

APPLE VALLEY: BI: 77 IC: 64

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

————————————————————————————–
APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):
THURSDAY… Sky/weather………Mostly sunny.
Max temperature…..93 to 102. 24 HR TREND……Down 1 degree.
Min humidity……..10 to 15 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Winds southwest 6 to 14 mph. Gusts to 30 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.THURSDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..61 to 70. 24 HR TREND……Down 4 degrees.
Max humidity……..30 to 40 percent. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..Winds southwest 6 to 14 mph. Gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Sunny.
Max temperature…..91 to 101. 24 HR TREND……Down 4 degrees.
Min humidity……..5 to 10 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds southwest 6 to 14 mph. Gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*WRIGHTWOOD:
Thursday
Sunny, with a high near 80. Southwest wind 5 to 15 mph becoming east in the morning. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 59. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 77. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 58. West wind around 10 mph, with gusts as high as 20 mph.

*BIG PINES / WEST WRIGHTWOOD AREA
Thursday
Sunny, with a high near 74. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Clear, with a low around 54. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 74. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 53. Southwest wind 5 to 10 mph.

*PHELAN:
Thursday
Sunny, with a high near 89. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Thursday Night
Clear, with a low around 62. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 84. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Clear, with a low around 60. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 20 mph.

*TRONA / Indian Wells Valley:
.THURSDAY… Sky/weather………Sunny.
Max Temperature…..94-99. 24 HR Trend……Down 1-3 degrees.
Min Humidity……..9-17 percent. 24 HR Trend……Little change.
20-Foot Winds…….Southwest 3-7 mph in the early morning increasing to south 5-15 mph by afternoon.
LAL……………..1.
Ventilation………Excellent.
Mixing height…….16700 ft AGL.
Transport Winds…..Southwest around 5 mph in the morning increasing to around 20 mph in the afternoon.
Chc Wetting Rain….0 percent.

.THURSDAY NIGHT… Sky/weather………Clear.
Min Temperature…..66-71. 24 HR Trend……Down 2-8 degrees.
Max Humidity……..27-37 percent. 24 HR Trend……Down 3-5 percent.
20-Foot Winds…….West 3-14 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

.FRIDAY… Sky/weather………Sunny.
Max Temperature…..91-96. 24 HR Trend……Down 2-4 degrees.
Min Humidity……..8-16 percent. 24 HR Trend……Little change.
20-Foot Winds…….West 3-8 mph in the early morning increasing to southwest 5-13 mph by afternoon.
LAL……………..1.
Ventilation………Poor. Mixing height…….MISSING. Transport Winds…..
Chc Wetting Rain….0 percent.

BARSTOW / DAGGETT / BAKER / FT. IRWIN (CAZ228):
.THURSDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….103-108. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….8-16 percent. * 24 hr trend…..On average down 3 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southwest wind up to 10 mph increasing to 10 to 15 mph with gusts to around 25 mph in the afternoon.
* 10000 ft msl….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.

.THURSDAY NIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….64-69. * 24 hr trend…..On average down 5 degrees.
* Max humidity: * Valley floor….27-32 percent. * 24 hr trend…..On average down 8 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southwest wind 10 to 15 mph.
* 10000 ft msl….South 10 to 15 mph increasing to 20 to 30 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.FRIDAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….103-108. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….6-11 percent. * 24 hr trend…..On average down 3 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southwest wind 10 to 15 mph.
* 10000 ft msl….South 20 to 30 mph decreasing to 15 to 25 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

*BAKER:
Thursday
Sunny and hot, with a high near 108. South wind around 7 mph.
Thursday Night
Mostly clear, with a low around 76. South southeast wind 6 to 9 mph.
Friday
Sunny and hot, with a high near 105. South southwest wind 7 to 9 mph.
Friday Night
Clear, with a low around 74. West southwest wind 6 to 14 mph, with gusts as high as 21 mph.

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS:
THURSDAY… * Sky/Weather………Mostly sunny. Isolated rain in the morning. Scattered showers and isolated thunderstorms in the afternoon.
* Max temperature: * Valley floor….95-100. * 7000 feet…….79-84. * 24 hr trend….On average down 3 degrees.
* Min humidity: * Valley floor….9-15 percent. * 7000 feet…….22-32 percent.
* 24 hr trend…..On average up 2 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….North winds up to 10 mph shifting to the south with gusts to around 25 mph in the afternoon.
* Upper slopes….South winds 10 to 15 mph.
* 10000 ft msl….Light and variable becoming south 10 to 15 mph in the afternoon.
* CWR (>= 0.10 in)….20 percent. * LAL……………..2. * Haines Index……..6.

.THURSDAY NIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….59-64. * 7000 feet…….28-33. * 24 hr trend…..On average down 3 degrees.
* Max humidity: * Valley floor….35-40 percent. * 7000 feet….53-58 percent. * 24 hr trend..On average down 7 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….West winds up to 10 mph. Gusts up to 25 mph in the evening.
* Upper slopes….Southwest winds 10 to 15 mph shifting to the west after midnight.
* 10000 ft msl….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.FRIDAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….92-97. * 7000 feet…76-81. * 24 hr trend…On average down 2 degrees.
* Min humidity: * Valley floor..8-11 percent. * 7000 feet…16-26 percent. * 24 hr trend…On average down 4 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds up to 10 mph increasing to 10 to 15 mph in the afternoon. Gusts up to 30 mph.
* Upper slopes….Southwest winds up to 10 mph increasing to 10 to 15 mph in the afternoon. Gusts up to 30 mph.
* 10000 ft msl….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.

INLAND EMPIRE (CAZ248):
.THURSDAY… Sky/weather………Mostly sunny.
Max temperature…..89 to 97. 24 HR TREND……Down 1 degree.
Min humidity……..20 to 30 percent. 24 HR TREND……Little change.
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.

.THURSDAY NIGHT… Sky/weather………Clear.
Min temperature…..59 to 65. 24 HR TREND……Down 2 degrees.
Max humidity……..75 to 85 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Winds west 6 to 10 mph with gusts to 20 mph in the evening becoming variable 2 to 4 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Mostly sunny.
Max temperature…..88 to 95. 24 HR TREND……Little change.
Min humidity……..15 to 25 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Variable 2 to 5 mph becoming southwest 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 94. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 63. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 92. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Clear, with a low around 61. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

*CHINO HILLS:
Thursday
Sunny, with a high near 86. Light and variable wind 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 60. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 85. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 60. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

*COLTON:
Thursday
Sunny, with a high near 95. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 66. Southwest wind 5 to 10 mph becoming light after midnight.
Friday
Sunny, with a high near 94. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Clear, with a low around 65. Southwest wind 5 to 10 mph

SAN BERNARDINO N.F. (CAZ255/CAZ256):
.THURSDAY… Sky/weather………Mostly sunny…becoming partly cloudy.
Max temperature…..73 to 83 above 6000 feet to 80 to 90 below 6000 feet. 24 HR TREND……Down 2 degrees.
Min humidity…15 to 20 percent on desert slopes to 20 to 30 percent on coastal slopes. 24 HR TREND…Down 10 percent.
WIND (20 FT)……..
SLOPES………..Winds west 6 to 13 mph. Gusts to 30 mph.
RIDGETOP………Winds southwest 6 to 12 mph with gusts to 25 mph.
CWR (>0.10 IN)……1 percent. LAL……………..1.

.THURSDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..49 to 59 above 6000 feet to 54 to 64 below 6000 feet. 24 HR TREND……Down 4 degrees.
Max humidity…25 to 30 percent on desert slopes to 40 to 50 percent on coastal slopes. 24 HR TREND…Little change.
WIND (20 FT)……..
SLOPES………..Winds southwest 6 to 13 mph. Gusts to 30 mph.
RIDGETOP………Winds south 7 to 12 mph with gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Sunny.
Max temperature…..71 to 81 above 6000 feet to 77 to 87 below 6000 feet. 24 HR TREND……Little change.
Min humidity…10 to 15 percent on desert slopes to 15 to 20 percent on coastal slopes. 24 HR TREND…Down 5 percent.
WIND (20 FT)……..
SLOPES………..Winds southwest 6 to 15 mph. Gusts to 30 mph.
RIDGETOP………Winds southwest 9 to 15 mph with gusts to 30 mph.
CWR (>0.10 IN)……1 percent. LAL……………..1.

*LAKE ARROWHEAD SCHOOL- AREA:
Thursday
Sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 61. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 77. South wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Clear, with a low around 58. South wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 20 mph.

*BIG BEAR SCHOOL AREA:
Thursday
Sunny, with a high near 78. South wind 5 to 10 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Clear, with a low around 49. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 76. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Friday Night
Clear, with a low around 46. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

BANNING PASS:
.THURSDAY… Sky/weather………Mostly sunny.
Max temperature…..104 to 109. 24 HR TREND……Up 4 degrees.
Min humidity……..15 to 20 percent. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..Winds west around 6 mph becoming southeast 6 to 14 mph with gusts to 30 mph in the afternoon.
CWR (>0.10 IN)……1 percent. LAL……………..1.

.THURSDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..74 to 83. 24 HR TREND……Down 2 degrees.
Max humidity……..20 to 30 percent. 24 HR TREND……Down 15 percent.
WIND (20 FT)……..Winds west 6 to 15 mph with gusts to 30 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Sunny.
Max temperature…..103 to 108. 24 HR TREND……Down 1 degree.
Min humidity……..10 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds west 7 to 17 mph. Gusts to 35 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

JOSHUA TREE AREA (CAZ261):
.THURSDAY… * Sky/weather…………………Sunny.
* Max Temperature……………..89-103. * 24 hr trend………………3 degrees warmer.
* Min Humidity………………..16-21 pct. * 24 hr trend………………11 pct drier.
* Winds – 20 foot…Slope/Valley..South 5 to 15 mph.
* Winds…10000 FT MSL…………South 10 to 15 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.
* Haines High Level Index………3 or very low potential for large plume dominated fire growth.

.THURSDAY NIGHT… * Sky/weather…………………Clear.
* Min Temperature……………..69-80. * 24 hr trend………………Little change.
* Max Humidity………………..24-29 pct. * 24 hr trend………………15 pct drier.
* Winds – 20 foot…Slope/Valley..West 5 to 15 mph.
* Winds…10000 FT MSL…………South 10 to 20 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.

.FRIDAY… * Sky/weather…………………Sunny.
* Max Temperature……………..88-102. * 24 hr trend………………Little change.
* Min Humidity………………..9-14 pct. * 24 hr trend………………7 pct drier.
* Winds – 20 foot…Slope/Valley..Southwest 5 to 15 mph.
* Winds…10000 FT MSL…………South 20 to 30 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.
* Haines High Level Index………5 or moderate potential for large plume dominated fire growth.

NEEDLES, RIVER BAT. (CAZ229):
.THURSDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….105-110. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….12-20 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….South 10 to 20 mph shifting to the southwest 15 to 20 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..3.
* Mixing height…….11400 ft agl. * Transport winds…..South up to 10 knots. * Ventilation………Excellent.

.THURSDAY NIGHT. * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….78-83. * 24 hr trend…..Little change.
* Max humidity: * Valley floor….29-34 percent. * 24 hr trend…..On average down 9 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind up to 10 mph.
* 10000 ft msl….Southwest 10 to 15 mph shifting to the south 10 to 20 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..3.

.FRIDAY… * Sky/Weather………Mostly sunny.
* Max temperature: * Valley floor….107-112. * 24 hr trend…..On average up 2 degrees.
* Min humidity: * Valley floor….7-16 percent. * 24 hr trend…..On average down 4 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind 10 to 15 mph.
* 10000 ft msl….South 20 to 30 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….11300 ft agl. * Transport winds…..South 10 to 15 knots. * Ventilation………Excellent.

STATELINE – CLARK COUNTY BORDER:
.THURSDAY… * Sky/Weather…Mostly sunny. Isolated rain in the morning. Isolated showers and thunderstorms in the afternoon.
* Max temperature: * 4000 feet…….101-106. * 24 hr trend…..Little change.
* Min humidity: * 4000 feet…….12-18 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds up to 10 mph.
* 10000 ft msl….South 15 to 20 mph.
* CWR (>= 0.10 in)….15 percent. * LAL……………..2. * Haines Index……..5.
* Mixing height…….13800 ft agl. * Transport winds…..Light winds becoming south around 10 knots in the afternoon.
* Ventilation………Excellent.

.THURSDAY NIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * 4000 feet…….69-74. * 24 hr trend…..On average down 3 degrees.
* Max humidity: * 4000 feet…….31-36 percent. * 24 hr trend…..On average down 7 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Southwest winds up to 10 mph.
* 10000 ft msl….Southwest 15 to 20 mph shifting to the south 10 to 20 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.FRIDAY… * Sky/Weather………Sunny.
* Max temperature: * 4000 feet…….100-105. * 24 hr trend…..Little change.
* Min humidity: * 4000 feet…….7-13 percent. * 24 hr trend…..On average down 5 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds 10 to 15 mph.
* 10000 ft msl….South 20 to 30 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..4.
* Mixing height…….12900 ft agl. * Transport winds…..Light winds becoming south 10 to 15 knots in the afternoon.
* Ventilation………Excellent.

*************************** OUT OF COUNTY ********************************
ELEVATED TO BRIEF CRITICAL FIRE DANGER INTERIOR AREAS, ANTELOPE
VALLEY, AND MOUNTAINS OF LOS ANGELES COUNTY THROUGH SATURDAY DUE TO
GUSTY ONSHORE WINDS AND LOW HUMIDITIES

LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ247/CAZ249):
THURSDAY… Sky/weather………Mostly sunny except areas of morning low clouds and fog.
Max temperature…..84-94. 24 hr trend……Little change.
Min humidity……..30-50 percent. 24 hr trend……Little change.
20-foot winds…….Variable 3-6 mph becoming south 10-20 mph with gusts to 25 mph late in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.THURSDAY NIGHT… Sky/weather………Mostly clear except patchy low clouds and fog after midnight.
Min temperature…..59-66.
Max humidity……..65-90 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…..83-93.
Min humidity……..25-40 percent.
20-foot winds…….Variable 3-6 mph becoming south 6-12 mph with local gusts to 20 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANGELES NATIONAL FOREST (CAZ253):
THURSDAY… Sky/weather………Mostly sunny…becoming partly cloudy.
Max temperature…..73 to 83 above 6000 feet to 80 to 90 below 6000 feet. 24 HR TREND……Down 2 degrees.
Min humidity…15 to 20 percent on desert slopes to 20 to 30 percent on coastal slopes. 24 HR TREND…Down 10 percent.
WIND (20 FT)……..
SLOPES………..Winds west 6 to 13 mph. Gusts to 30 mph.
RIDGETOP………Winds southwest 6 to 12 mph with gusts to 25 mph.
CWR (>0.10 IN)……1 percent. LAL……………..1.

.THURSDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..49 to 59 above 6000 feet to 54 to 64 below 6000 feet. 24 HR TREND……Down 4 degrees.
Max humidity….25 to 30 percent on desert slopes to 40 to 50 percent on coastal slopes. 24 HR TREND…Little change.
WIND (20 FT)……..
SLOPES………..Winds southwest 6 to 13 mph. Gusts to 30 mph.
RIDGETOP………Winds south 7 to 12 mph with gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.FRIDAY… Sky/weather………Sunny.
Max temperature…..71 to 81 above 6000 feet to 77 to 87 below 6000 feet. 24 HR TREND……Little change.
Min humidity..10 to 15 percent on desert slopes to 15 to 20 percent on coastal slopes. 24 HR TREND…Down 5 percent.
WIND (20 FT)……..
SLOPES………..Winds southwest 6 to 15 mph. Gusts to 30 mph.
RIDGETOP………Winds southwest 9 to 15 mph with gusts to 30 mph.
CWR (>0.10 IN)……1 percent. LAL……………..1.

ANTELOPE VALLEY (CAZ259):
.THURSDAY… Sky/weather………Sunny.
Max temperature…..90-100. 24 hr trend……Little change.
Min humidity……..10-20 percent. 24 hr trend……Little change.
20-foot winds…….Southwest 6-12 mph becoming 15-25 mph with gusts to 40 mph late in the afternoon.
Isolated gusts to 50 mph near Lake Palmdale in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.THURSDAY NIGHT… Sky/weather………Clear.
Min temperature…..58-68.
Max humidity……..35-45 percent.
20-foot winds…….Southwest 15-25 mph with gusts to 40 mph in the evening becoming 6-12 mph.
Isolated gusts to 50 mph near Lake Palmdale in the evening.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.FRIDAY… Sky/weather………Sunny.
Max temperature…..85-95.
Min humidity……..10-20 percent.
20-foot winds…….Southwest 6-12 mph becoming 15-25 mph with gusts to 40 mph in the afternoon.
Isolated gusts to 50 mph near Lake Palmdale in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

KERN CO. DESERTS (CAZ298):
.THURSDAY… Sky/weather………Sunny.
Max Temperature…..92-97. 24 HR Trend……Down 1-3 degrees.
Min Humidity……..16-26 percent. 24 HR Trend……Little change.
20-Foot Winds…….Southwest 3-7 mph in the early morning increasing to 5-15 mph by afternoon.
LAL……………..1.
Ventilation………Excellent. Mixing height…….15800 ft AGL.
Transport Winds…..Southwest around 5 mph in the morning increasing to around 20 mph in the afternoon.
Chc Wetting Rain….0 percent.

.THURSDAY NIGHT… Sky/weather………Clear.
Min Temperature…..62-67. 24 HR Trend……Down 3-5 degrees.
Max Humidity……..41-51 percent. 24 HR Trend……Little change.
20-Foot Winds…….Southwest 4-16 mph in the early evening shifting to the west 3-12 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

.FRIDAY… Sky/weather………Sunny.
Max Temperature…..88-93. 24 HR Trend……Down 3-5 degrees.
Min Humidity……..16-26 percent. 24 HR Trend……Little change.
20-Foot Winds…….West 3-8 mph in the early morning increasing to southwest 6-12 mph by afternoon.
LAL……………..1.
Ventilation………Poor. Mixing height…….MISSING. Transport Winds…..
Chc Wetting Rain….0 percent.

*La Jolla CA
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 71. Light west wind increasing to 5 to 10 mph in the morning.
Thursday Night
Increasing clouds, with a low around 63. West wind around 5 mph becoming calm in the evening.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 71. Light and variable wind becoming west 5 to 10 mph in the morning.
Friday Night
Increasing clouds, with a low around 63. West wind around 5 mph becoming calm in the evening.

*Poway CA
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 63. West wind around 5 mph becoming calm.
Friday
Patchy fog before 11am. Otherwise, sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Friday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 61. West wind around 5 mph becoming calm in the evening.

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

Convection will continue to increase in areal coverage tomorrow, with a threat of locally heavy rain, strong winds and hail. There is a risk of flash flooding, particularly near burn scars, slot canyons, normally dry washes, and areas of poor drainage Thursday.

The combination of drying conditions and increasingly gusty southerly winds will support critical fire weather conditions
Friday and Saturday.

Thursday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. Southwest wind 5 to 11 mph. Chance of precipitation is 30%.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61. South wind 6 to 8 mph.
Friday
Sunny, with a high near 87. South southeast wind 9 to 15 mph.
Friday Night
Partly cloudy, with a low around 60. South wind 13 to 18 mph decreasing to 7 to 12 mph after midnight.

============================================================
THIS DAY IN WEATHER HISTORY:
2001: A strong thunderstorm in Twentynine Palms caused property damage.

1989: One of the most severe convective outbreaks of record in Southern California began on 8/7 and continued until 8/11, when it climaxed. Over one inch of rain hit Idyllwild on 8/9 and more than a half inch fell on Palm Springs on 8/10.

1981: It was 92° in Big Bear Lake, the highest temperature on record for August. This also occurred on 8/25/1985 and on 8/29/1974.

1970: It was 100° in Palomar Mountain, the highest temperature on record. This also occurred on eight other days.

1965: A sudden thunderstorm dropped “several inches of rain” on the foothills south of Lucerne Valley. A flash flood covered a 50 foot wide canyon floor with four feet of water. 21 members of a Riverside jeep club were stranded. Three jeeps were demolished, one being swept 300 feet down the canyon.

1963: A heavy thunderstorm struck Victorville – Desert Knolls with 1.67 inches in two hours and Victorville with 0.81 inch. No deaths or injuries occurred in the flash floods, but there were rescues of motorists. Some flooding was three feet deep in Apple Valley, four to five feet deep on Old Woman Springs Road.

1947: A heavy thunderstorm struck Needles, causing damage to highways and railroads, including highway 66.
==================================================================
TROPICAL EAST PACIFIC REPORT:
For the eastern North Pacific…east of 140 degrees west longitude:

A low pressure area is forecast to form a few hundred miles south or southwest of the southern coast of Mexico by the end of the week. Thereafter, environmental conditions are expected to be somewhat
conducive for development, and a tropical depression could form early next week while it moves west-northwestward at 10 to 15 mph, within a couple of hundred miles of the coast of southwestern
Mexico.
* Formation chance through 48 hours…low…near 0 percent.

* Formation chance through 5 days…medium…50 percent.
.
======================================================================
CURRENT WEATHER @ HESP. @ 0820 Hrs. TEMP: 790 RH: 21% WIND: SW 3 G 6
7.63” RF @ HESP. STA.SINCE OCT. 1st/20 Yr Avg: 7.12” : MONTH: 0.00” YTD S/F: 1.00” /
=================================================================
FIRES: UPDATED

National Preparedness Level (PL 3)
Nationally, four new large fires reported, bringing the total to 72 large fires that have burned more than 1.3 million acres. Firefighters are prepared for predicted lightning in the Great Basin, Oregon and Washington.

Daily statistics 8/8/19
Number of new large fires or emergency response 4 States currently reporting large fires:
Number of active large fires
Total does not include individual fires within complexes. 72 Alaska (21)
Arizona (6)
California (2)
Colorado (2)
Idaho (7)
Montana (6)
Nevada (4)
New Mexico (6)
Oregon (5)
Texas (1)
Utah (9)
Washington (3)
Acres from active fires 1,373,384
Fires contained 4
Year-to-date statistics
2019 (1/1/19 – 8/8/19) Fires: 28,090 Acres: 3,575,535
2018 (1/1/18 – 8/8/18) Fires: 39,628 Acres: 5,430,771
2017 (1/1/17 – 8/8/17) Fires: 40,629 Acres: 6,041,641
2016 (1/1/16 – 8/8/16) Fires: 36,103 Acres: 3,569,814
2015 (1/1/15 – 8/8/15) Fires: 37,693 Acres: 6,161,928
2014 (1/1/14 – 8/8/14) Fires: 35,085 Acres: 2,401,651
2013 (1/1/13 – 8/8/13) Fires: 29,205 Acres: 2,558,081
2012 (1/1/12 – 8/8/12) Fires: 39,427 Acres: 4,884,522
2011 (1/1/11 – 8/8/11) Fires: 46,783 Acres: 6,297,394
2010 (1/1/10 – 8/8/10) Fires: 41,310 Acres: 2,152,272
2009 (1/1/09 – 8/8/09) Fires: 59,420 Acres: 4,863,797
10-year average Year-to-Date
2009-2018 Fires: 40,451 Acres: 4,318,235

Initial attack activity: Light (127 new fires)
New large incidents: 4
Large fires contained: 4
Uncontained large fires:** 24
Area Command teams committed: 0
NIMOs committed: 1
Type 1 IMTs committed: 1
Type 2 IMTs committed: 7

Active Incident Resource Summary
GACC Incidents Cumulative Acres Crews Engines Helicopters Total Personnel
AICC 6 956,102 18 0 4 621
NWCC 12 46,699 86 141 26 3,214
ONCC 2 15,037 1 9 0 199
OSCC 7 1,222 13 36 2 551
NRCC 14 24,949 32 67 16 1,515
GBCC 22 140,920 53 123 24 2,118
SWCC 5 24,901 5 10 2 267
RMCC 2 42 0 0 0 14
EACC 0 0 0 0 0 0
SACC 6 14,801 0 6 0 66
Total 76 1,224,675 208 392 74 8,565

CDF FIRES TO DATE (STATE LANDS SRA)
Number of Fires and Acres:
Interval Fires Acres
January 1, 2019 through August 4, 2019 2,971 22,949
January 1, 2018 through August 4, 2018 3,661 615,771
5-Year Average (same interval) 3,572 245,850
2019 Combined YTD (CALFIRE & US Forest Service) 3,487 45,364

Southern California Area (PL 2 )
New fires: 25
New large incidents: 1
Uncontained large fires: 1

Mill, Vegetation Fire, Monterey County, Final
West of Fort Hunter Liggett
Federal DPA, FRA Los Padres National Forest
• 310 acres (+0), grass, 95% contained (+0% containment)
• Minimal fire behavior with smoldering
• Limited access due to steep terrain
• Continued road and trail closures
• Last report unless significant changes occur
SPRING FIRE
Basic Information
Current as of ‎8‎/‎7‎/‎2019‎ ‎7‎:‎48‎:‎21‎ ‎AM

Incident Type Wildfire
Cause Lightning
Date of Origin Friday July 26th, 2019 approx. 04:00 PM
Location 13 miles SE of Lee Vining, CA
Incident Commander Troy Maguire
Coordinates 37.826 latitude, -118.872 longitude
Current Situation
Total Personnel 148
Size 268 Acres
Percent of Perimeter Contained 10%
Estimated Containment Date Tuesday August 20th, 2019 approx. 12:00 AM
Fuels Involved Timber (Litter and Understory), Brush (2 feet)
Significant Events Minimal Creeping and Smoldering

Northern California Area (PL 2 )

CA-NOD R-1 Fire: 40 acres grass and brush, 0% contained, The fire continues to have moderate spread rate. One structure has been destroyed. Threats include, 345KV powerlines and Sage Grouse habitat.

CA-LNF H-1 Fire: 15 acres grass and brush, 0% contained. There fire has a moderate rate of spread with short range spotting observed. Fire is located at Pittville Rd. and Willow Springs Rd., 9 miles SE of Fall River Mills. There are no immediate threats reported. Map

SELLERS FIRE
Last Updated 8/7/2019
Date Started 8/7/2019
Location Information Sellers Ave and Delta Rd, 2 miles northeast of Brentwood
Lat/Long [37.968494, -121.678172]
Status Active
Percentage Contained 0%
Acres Burned 58
Fuel Type
Administrative Unit East Contra Costa Fire Protection District
Command Team
Cause Under Investigation
Counties Contra Costa
Control Statement Forward spread has been stopped. Crews will continue with mop up operations to establish full containment.

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