FIRE WEATHER 8/13/19

DAILY FIRE WEATHER & FIRE INFO
To: ALL UNITS From:
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Date: 8/13/19

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.:83

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)
High pressure will bring a warming trend through Wednesday, continuing into Thursday for the lower deserts. A cooling trend will follow for Friday through Monday. The marine layer will become shallower during the middle of the week, then become a little deeper for next weekend. Lower inland humidity combined with gusty southwest to west winds will produce near critical fire weather conditions for the desert slopes of the mountains into the deserts for the afternoon and early evening for Wednesday through Friday. The marine layer will keep areas near the coast cooler with higher humidity.
· High temperatures climbing to the 80s in the mountains to the upper 90s to 105 in the valleys Wednesday. Cooler weather developing Friday and by Saturday, highs will be back in the upper 80s to lower 90s in the valleys. Look for much warmer weather next week.

· Most areas will see minimum RH in the teens the next few days. However, min RH may fall into the 8-12% range for 6 hours each afternoon through Thursday above 3,000 feet. The lowest readings will be on desert-adjacent sides of the Angeles, San Bernardino and Cleveland N.F.

· Gusty winds may return to the Central Coast and Kern County Mountains Friday into the weekend, otherwise winds will be light.

· No thunderstorms through the next 10-14 days.

CONFIDENCE AND DETAILS
Heatwave – Inland, Hottest Conditions Across the Lower Deserts
High Confidence
Excessive heat lower deserts and hot conditions over the inland valleys.
Heat-related illness possible if precautions are not taken.

Details
– What: Dangerous heat inland.
● An Excessive Heat Warning is in effect for the lower deserts Tuesday through Thursday.

● A Heat Advisory is in effect for inland Orange County, the Inland Empire, and inland San Diego County Wednesday-Thursday.

– Where: Inland. High temperatures:

● Lower Deserts: Near 115 Tue, 115-120 Wed-Thu

● Inland Empire and High Deserts: 100 to 105 Wed-Thu

● Inland Orange County & Inland San Diego: 95-100 Wed-Thu

– When: Tuesday through Thursday.

NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)
Hot and dry conditions are expected through the week with temperatures several degrees above normal. Min RH values will continue to drop through the week with poor overnight recoveries expected. Winds are not expected to be much of a concern through Thursday with occasional afternoon gusts up to 25 mph. A digging trough over the west coast could bring increasing winds Friday resulting in near-critical fire weather conditions as winds may gust to around 30 mph at times.

CONFIDENCE AND DETAILS
Heat Risk Mid-week
HIGH Confidence
Higher temperatures will likely increase heat-related emergency calls Homeless, the elderly, children and those already with health issues are the most at risk Increased risk to children and pets left unattended in hot vehicles or outdoors.

Details:
Wednesday and Thursday
Heat Risk will reach Category 3 (High) or 4 (Extreme) in areas such as Laughlin/Bullhead City, Lake Havasu City, Kingman, Lakes Mead and Mohave and Las Vegas. High Temps: 108-119 / Low Temps: 85-90
Elevated overnight temps are a compelling factor in driving heat impacts due to long-duration heat, with little to no relief overnight. Excessive Heat may linger into Friday.
For more information visit: https://www.wrh.noaa.gov/wrh/heatrisk/
Fire Weather Concerns Fri/Sat
MODERATE Confidence Extreme fire behavior and rapid fire growth.

Details:
Friday & Saturday
Very dry atmosphere and elevated southwest winds will result in near-critical to critical fire weather concerns across southern Nevada and southeast California. Highest risk during afternoon and early evening hours.

FLASH FLOOD POTENTIAL INDEX FOR EXTREME SOUTHWESTERN CALIFORNIA
DRY WEATHER WILL CONTINUE INTO NEXT WEEK.
TUESDAY WEDNESDAY
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:

DAILY FUELS/FIRE POTENTIAL:
Warm and dry conditions will result in higher ignition components the next few days which will likely lead to an increase in IA. Light winds should keep rates of spread low to moderate allowing local resources to successfully manage most new starts. Dead fuel moisture is well below normal across much of Central CA and new starts in fuel beds dominated by dead fuels will see some growth during peak heating hours. But live fuels still retain much of the moisture from the spring with reports indicating fuel moisture conditions lagging around 4 weeks behind usual. An extended period of sunny, warm and dry weather next week may result in these fuels catching up to their usual dryness level in a short amount of time, if long range models are correct. Resource demand is expected to remain light this week.

• Fire Danger / Dispatch Levels / Burn Status

• VALLEY: HIGH HIGH SRA: SUSPENDED LOCAL: NO

• DESERT: HIGH HIGH SRA: SUSPENDED LOCAL: NO

• MOUNTAINS: HIGH HIGH SRA: SUSPENDED LOCAL: NO

• OWENS VALLEY: HIGH HIGH SRA: SUSPENDED LOCAL: NO

• Burn Index and Ignition Component:

• OWENS VALLEY: BI: 76 IC: 70

• OAK CREEK: BI: 96 IC: 90

• FAWNSKIN: BI: 00 IC:00

• BDF MILL CREEK: BI: 149 IC: 89

• YUCCA VALLEY: BI: 83 IC: 75

• DEVORE: BI: 127 IC: 82

• MORMON ROCK: BI: 167 IC: 88

• HEAPS PEAK: BI: 27 IC: 40

APPLE VALLEY: BI: 84 IC: 79

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

————————————————————————————–
APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):
TODAY… Sky/weather………Sunny.
Max temperature…..97 to 105. 24 HR TREND……Up 5 degrees.
Min humidity……..5 to 10 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Variable 2 to 5 mph becoming south 6 to 11 mph with gusts to 25 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Clear.
Min temperature…..64 to 73. 24 HR TREND……Up 8 degrees.
Max humidity……..20 to 25 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds west 6 to 11 mph. Gusts to 25 mph in the evening.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.WEDNESDAY… Sky/weather………Sunny.
Max temperature…..99 to 106. 24 HR TREND……Little change.
Min humidity……..5 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Variable 2 to 5 mph becoming south 6 to 9 mph with gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*WRIGHTWOOD:
Today
Sunny, with a high near 84. South wind 5 to 10 mph.
Tonight
Clear, with a low around 64. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 85. South wind around 5 mph becoming east in the morning.
Wednesday Night
Clear, with a low around 65. South wind 5 to 10 mph.

*BIG PINES / WEST WRIGHTWOOD AREA
Today
Sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Clear, with a low around 60. South southwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 82. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Clear, with a low around 62. Southwest wind 5 to 10 mph becoming west northwest in the evening.

*PHELAN:
Today
Sunny, with a high near 93. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tonight
Clear, with a low around 68. South wind 5 to 15 mph becoming west in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 94. Light east wind becoming southeast 5 to 10 mph in the afternoon.
Wednesday Night
Clear, with a low around 70. Southwest wind 5 to 10 mph.

*TRONA:
Today
Sunny, with a high near 104. Calm wind becoming south 5 to 9 mph in the morning.
Tonight
Clear, with a low around 76. Southwest wind 5 to 10 mph becoming light west after midnight.
Wednesday
Sunny and hot, with a high near 107. Calm wind becoming southeast 5 to 7 mph in the morning.
Wednesday Night
Clear, with a low around 78. South southwest wind 5 to 9 mph becoming light and variable after midnight.

BARSTOW / DAGGETT / BAKER / FT. IRWIN (CAZ228):
TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….104-109. * 24 hr trend…..On average up 2 degrees.
* Min humidity: * Valley floor….6-11 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….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TONIGHT… * Sky/Weather………Clear.
* Min temperature: * Valley floor….68-73. * 24 hr trend…..On average up 2 degrees.
* Max humidity: * Valley floor….18-23 percent. * 24 hr trend…..On average down 7 percent.
* 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 southeast after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.WEDNESDAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….109-114. * 24 hr trend…..On average up 5 degrees.
* Min humidity: * Valley floor….5-8 percent. * 24 hr trend…..On average down 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Upslope/upvalley 4 to 8 mph becoming southwest up to 10 mph in the afternoon.
* 10000 ft msl….South 10 to 15 mph decreasing to around 10 mph in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.

*BAKER:
Today
Sunny and hot, with a high near 108. South wind around 6 mph.
Tonight
Clear, with a low around 78. Calm wind becoming west southwest around 6 mph in the evening.
Wednesday
Sunny and hot, with a high near 112. South southeast wind around 6 mph becoming light and variable.
Wednesday Night
Clear, with a low around 80. Calm wind becoming west around 6 mph in the evening.

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS:
TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….97-102. * 7000 feet…….82-87. * 24 hr trend…..On average up 3 degrees.
* Min humidity: * Valley floor….5-8 percent. * 7000 feet…9-19 percent. * 24 hr trend…..On average down 3 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Upslope/upvalley 4 to 8 mph becoming southeast 10 to 15 mph in the afternoon.
* Upper slopes….South winds 10 to 15 mph.
* 10000 ft msl….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.

.TONIGHT… * Sky/Weather………Mostly clear.
* Min temperature: * Valley floor….61-66. * 7000 feet…….33-38. * 24 hr trend…..Little change.
* Max humidity: * Valley floor….24-29 percent. *7000 feet….36-41 percent. * 24 hr trend…..On average down 7 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds around 10 mph in the evening becoming downslope/downvalley 2 to 5 mph.
* Upper slopes….West winds up to 10 mph.
* 10000 ft msl….Southeast up to 10 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.

.WEDNESDAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….100-105. * 7000 feet…….85-90. * 24 hr trend…..On average up 3 degrees.
* Min humidity: * Valley floor….5-7 percent. * 7000 feet…….8-18 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Upslope/upvalley 4 to 8 mph becoming southeast around 10 mph in the afternoon. Gusts up to 25 mph.
* Upper slopes….South winds 10 to 15 mph.
* 10000 ft msl….Southeast up to 10 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.

INLAND EMPIRE (CAZ248):
HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM WEDNESDAY TO 9 PM
PDT THURSDAY
TODAY… Sky/weather………Sunny.
Max temperature…..94 to 102. 24 HR TREND……Up 6 degrees.
Min humidity……..10 to 15 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Variable 2 to 5 mph becoming west 6 to 10 mph with gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Clear.
Min temperature…..64 to 70. 24 HR TREND……Up 5 degrees.
Max humidity……..45 to 55 percent. 24 HR TREND……Down 20 percent.
WIND (20 FT)……..Winds west 6 to 10 mph with gusts to 20 mph in the evening becoming variable 2 to 5 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.WEDNESDAY… Sky/weather………Sunny.
Max temperature…..98 to 105. 24 HR TREND……Up 3 degrees.
Min humidity……..10 to 15 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Variable 2 to 5 mph becoming west 6 to 11 mph with gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*DEVORE:
HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM WEDNESDAY TO 9 PM
PDT THURSDAY
Today
Sunny, with a high near 98. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Clear, with a low around 67. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 101. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Clear, with a low around 68. Southwest wind 5 to 10 mph becoming light and variable in the evening.

*CHINO HILLS:
HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM WEDNESDAY TO 9 PM
PDT THURSDAY
Today
Sunny, with a high near 90. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Clear, with a low around 64. Southwest wind 10 to 15 mph becoming south 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Sunny, with a high near 95. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Clear, with a low around 65. Southwest wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 25 mph.

*COLTON:
HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM WEDNESDAY TO 9 PM
PDT THURSDAY
Today
Sunny, with a high near 100. Light west wind increasing to 5 to 10 mph in the afternoon.
Tonight
Clear, with a low around 70. Southwest wind 5 to 10 mph becoming light west after midnight.
Wednesday
Sunny, with a high near 102. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Clear, with a low around 71. Southwest wind 5 to 10 mph becoming light after midnight.

SAN BERNARDINO N.F. (CAZ255/CAZ256):
TODAY… Sky/weather………Sunny.
Max temperature…..76 to 86 above 6000 feet to 84 to 94 below 6000 feet. 24 HR TREND……Up 2 degrees.
Min humidity……..10 to 15 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..
SLOPES………..Winds south 6 to 11 mph with gusts to 25 mph.
RIDGETOP………Winds southwest 6 to 11 mph with gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Clear.
Min temperature…..50 to 60 above 6000 feet to 57 to 67 below 6000 feet. 24 HR TREND……Little change.
Max humidity….15 to 20 percent on desert slopes to 25 to 35 percent on coastal slopes. 24 HR TREND….Down 5 percent.
WIND (20 FT)……..
SLOPES………..Winds southwest 6 to 11 mph. Gusts to 25 mph in the evening.
RIDGETOP………Winds south 6 to 9 mph with gusts to 20 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.WEDNESDAY… Sky/weather………Sunny.
Max temperature…..77 to 87 above 6000 feet to 85 to 95 below 6000 feet. 24 HR TREND……Down 5 degrees.
Min humidity……..10 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..
SLOPES………..Winds west 6 to 11 mph. Gusts to 25 mph in the afternoon.
RIDGETOP………Winds south 6 to 8 mph becoming west 7 to 11 mph in the afternoon. Gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

*LAKE ARROWHEAD SCHOOL- AREA:
Today
Sunny, with a high near 85. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 66. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 86. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 67. South wind 5 to 10 mph.

*BIG BEAR SCHOOL AREA:
Today
Sunny, with a high near 82. Southwest wind 5 to 10 mph.
Tonight
Clear, with a low around 49. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 83. Southwest wind 5 to 10 mph becoming northeast in the afternoon.
Wednesday Night
Clear, with a low around 52. Southwest wind 5 to 10 mph.

BANNING PASS:
EXCESSIVE HEAT WARNING NOW IN EFFECT FROM 11 AM WEDNESDAY TO
9 PM PDT THURSDAY
TODAY… Sky/weather………Sunny.
Max temperature…..106 to 111. 24 HR TREND……Up 6 degrees.
Min humidity……..10 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Variable 2 to 5 mph becoming southeast around 6 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.TONIGHT… Sky/weather………Clear.
Min temperature…..79 to 87. 24 HR TREND……Up 3 degrees.
Max humidity……..15 to 20 percent. 24 HR TREND……Down 15 percent.
WIND (20 FT)……..Winds west 6 to 11 mph with gusts to 25 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

.WEDNESDAY… Sky/weather………Sunny.
Max temperature…..109 to 114. 24 HR TREND……Up 4 degrees.
Min humidity……..5 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..Winds west 6 to 11 mph. Gusts to 25 mph in the afternoon.
CWR (>0.10 IN)……0 percent. LAL……………..1.

JOSHUA TREE AREA (CAZ261):
TODAY… * Sky/weather…………………Sunny.
* Max Temperature……………..94-106. * 24 hr trend………………3 degrees warmer.
* Min Humidity………………..10-15 pct. * 24 hr trend………………Little RH change.
* Winds – 20 foot…Slope/Valley..Northwest 5 to 10 mph in the morning becoming south in the afternoon.
* Winds…10000 FT MSL…………Southwest 10 to 20 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.

.TONIGHT… * Sky/weather…………………Clear.
* Min Temperature……………..71-81. * 24 hr trend………………Little change.
* Max Humidity………………..18-23 pct. * 24 hr trend………………10 pct drier.
* Winds – 20 foot…Slope/Valley..West 5 to 15 mph.
* Winds…10000 FT MSL…………Light and variable.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.

.WEDNESDAY… * Sky/weather…………………Sunny.
* Max Temperature……………..97-110. * 24 hr trend………………3 degrees warmer.
* Min Humidity………………..6-11 pct. * 24 hr trend………………4 pct drier.
* Winds – 20 foot…Slope/Valley..Northwest 5 to 10 mph in the morning becoming south in the afternoon.
* Winds…10000 FT MSL…………South 5 to 15 mph in the morning becoming light and variable in the afternoon.
* 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):
EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH THURSDAY EVENING

TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….110-115. * 24 hr trend…..On average up 3 degrees.
* Min humidity: * Valley floor….4-10 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Upslope/upvalley 4 to 8 mph becoming south up to 10 mph in the afternoon.
* 10000 ft msl….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent.
* LAL……………..1. * Haines Index……..5.
* Mixing height…….9900 ft agl.
* Transport winds…..Light winds becoming south around 10 knots in the afternoon.
* Ventilation………Very good.

.TONIGHT… * Sky/Weather………Clear.
* Min temperature: * Valley floor….77-82. * 24 hr trend…..Little change.
* Max humidity: * Valley floor….16-21 percent. * 24 hr trend…..On average down 6 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Downslope/downvalley 2 to 5 mph.
* 10000 ft msl….Southeast up to 10 mph increasing to 10 to 15 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.WEDNESDAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….114-119. * 24 hr trend…..On average up 4 degrees.
* Min humidity: * Valley floor….4-9 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Upslope/upvalley 4 to 8 mph.
* 10000 ft msl….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.
* Mixing height…….12800 ft agl.
* Transport winds…..Light winds.
* Ventilation………Very good.

STATELINE – CLARK COUNTY BORDER:
TODAY… * Sky/Weather………Sunny.
* Max temperature: * 4000 feet…….102-107. * 24 hr trend…..On average up 2 degrees.
* Min humidity: * 4000 feet…….7-10 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Upslope/upvalley 4 to 8 mph becoming south up to 10 mph in the afternoon.
* 10000 ft msl….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.
* Mixing height…….13100 ft agl.
* Transport winds…..Light winds.
* Ventilation………Fair.

.TONIGHT… * Sky/Weather………Clear.
* Min temperature: * 4000 feet…….68-73. * 24 hr trend…..Little change.
* Max humidity: * 4000 feet…….17-22 percent. * 24 hr trend…..On average down 7 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Downslope/downvalley 2 to 5 mph.
* 10000 ft msl….South up to 10 mph increasing to southeast after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.

.WEDNESDAY… * Sky/Weather………Sunny.
* Max temperature: * 4000 feet…….106-111. * 24 hr trend…..On average up 4 degrees.
* Min humidity: * 4000 feet…….6-8 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Upslope/upvalley 4 to 8 mph.
* 10000 ft msl….South 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..6.
* Mixing height…….13400 ft agl.
* Transport winds…..Light winds.
* Ventilation………Fair.

*************************** OUT OF COUNTY ********************************
LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ247/CAZ249):
TUESDAY… Sky/weather………Sunny.
Max temperature…..89-99. 24 hr trend……Up 4.
Min humidity……..20-40 percent except 20-30 percent western valley. 24 hr trend……Down 8.
20-foot winds…….Variable 3-6 mph becoming south 6-12 mph late in the afternoon.
Marine layer……..800 ft asl. LAL……………..1. CWR (>0.10 IN)……0 percent.

.TUESDAY NIGHT… Sky/weather………Clear.
Min temperature…..61-67.
Max humidity……..60-80 percent except 40-55 percent in the hills.
20-foot winds…….South 6-12 mph with local gusts to 20 mph early becoming variable 3-6 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.WEDNESDAY… Sky/weather………Sunny.
Max temperature…..93-103.
Min humidity……..15-25 percent.
20-foot winds…….Variable 3-6 mph becoming south 6-12 mph late in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANGELES NATIONAL FOREST (CAZ253):
TUESDAY… Sky/weather………Sunny.
Max temperature…..89-98 low elevations to 79-87 higher elevations. 24 hr trend……Up 5.
Min humidity……..15-25 percent except 7-15 percent higher peaks and warmer valleys. 24 hr trend……Down 7.
20-foot winds…….
Valleys/lwr slopes…Southwest 6-12 mph becoming south 10-20 mph with gusts to 25 mph in the afternoon.
Ridges/upr slopes….South 6-12 mph becoming southwest 10-20 mph with gusts to 25 mph late in the afternoon.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

.TUESDAY NIGHT… Sky/weather………Clear.
Min temperature…..66-71 low elevations to 60-64 colder valleys and peaks.
Max humidity……..15-25 percent except 35-45 percent colder valleys.
20-foot winds…….
Valleys/lwr slopes…Southwest 10-20 mph with gusts to 25 mph in the evening becoming 6-12 mph.
Ridges/upr slopes….Southwest 10-20 mph with gusts to 25 mph in the evening becoming downslope 3-6 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.WEDNESDAY… Sky/weather………Sunny.
Max temperature…..92-101 low elevations to 82-90 higher elevations.
Min humidity……..8-15 percent.
20-foot winds…….
Valleys/lwr slopes…West 6-12 mph becoming south 10-20 mph with gusts to 25 mph late in the afternoon.
Ridges/upr slopes….Variable 3-6 mph becoming southwest 6-12 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANTELOPE VALLEY (CAZ259):
TUESDAY… Sky/weather………Sunny.
Max temperature…..91-101. 24 hr trend……Up 4.
Min humidity……..8-15 percent. 24 hr trend……Down 5.
20-foot winds…….Southwest 6-12 mph with local gusts to 20 mph becoming 10-20 mph with local gusts to 30 mph in the afternoon. Isolated gusts to 40 mph near Lake Palmdale.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

.TUESDAY NIGHT… Sky/weather………Clear.
Min temperature…..62-71.
Max humidity……..20-35 percent.
20-foot winds…….Southwest 10-20 mph in the evening becoming 6-12 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.WEDNESDAY… Sky/weather………Sunny.
Max temperature…..93-103.
Min humidity……..3-7 percent.
20-foot winds…….Southwest increasing to 6-12 mph with local gusts to 20 mph then becoming 10-20 mph with gusts to 30 mph late in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

KERN CO. DESERTS (CAZ298):
TODAY… Sky/weather………Sunny.
Max Temperature…..95-100. 24 HR Trend……Up 3-5 degrees.
Min Humidity……..7-17 percent. 24 HR Trend……Little change.
20-Foot Winds…….Southwest 6 mph in the early morning increasing to 3-11 mph by afternoon.
LAL……………..1.
Ventilation………Excellent.
Mixing height…….12900 ft AGL.
Transport Winds…..North around 5 mph in the morning shifting to the south in the afternoon.
Chc Wetting Rain….0 percent.

.TONIGHT… Sky/weather………Clear.
Min Temperature…..65-70. 24 HR Trend……Up 1-3 degrees.
Max Humidity……..31-41 percent. 24 HR Trend……Down 3-9 percent.
20-Foot Winds…….Southwest 3-12 mph in the early evening shifting to the west 3-8 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

.WEDNESDAY… Sky/weather………Sunny.
Max Temperature…..98-103. 24 HR Trend……Up 2-4 degrees.
Min Humidity……..6-16 percent. 24 HR Trend……Little change.
20-Foot Winds…….Northwest 6 mph in the early morning shifting to the south 3-6 mph by afternoon.
LAL……………..1.
Ventilation………Very good.
Mixing height…….13600 ft AGL.
Transport Winds…..Northeast around 5 mph in the morning shifting to the south in the afternoon.
Chc Wetting Rain….0 percent.

*La Jolla CA
Today
Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 73. Northwest wind 5 to 10 mph.
Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 65. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 75. Northwest wind 5 to 10 mph.
Wednesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 65. Northwest wind around 5 mph.

*Poway CA
HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM WEDNESDAY TO 9 PM
PDT THURSDAY NEAR THE FOOTHILLS
Today
Patchy fog before 8am. Otherwise, sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Clear, with a low around 65. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 95. Light northwest wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night
Clear, with a low around 66. Northwest wind around 5 mph becoming calm.

*CEDAR CITY Ut.
Today
Sunny, with a high near 89. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.
Tonight
Clear, with a low around 59. South southwest wind 6 to 13 mph becoming southeast after midnight.
Wednesday
Sunny, with a high near 92. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 61. West wind around 6 mph becoming southeast after midnight.

============================================================
THIS DAY IN WEATHER HISTORY:
2004: Monsoon thunderstorms produced 0.71 inch of rain in 30 minutes in Phelan, 0.63 inch in eight minutes at Volcan Mountain (north of Julian), 0.66 inch in 11 minutes in San Felipe Valley (south of Borrego Springs). On this day flash floods hit Wildomar, Sage, and La Quinta. Hwy. 78 near Yaqui Pass was closed because of flash flooding.
1998: Strong thunderstorms developed each day in the valleys and the deserts starting on 8/12 and ending on 8/14. Flash flooding and very strong winds resulted in Apple Valley. A thunderstorm in Hemet produced a downburst with winds to 70 mph and 0.75 inch hail that damaged buildings, trees, and power lines. Golf ball size hail fell at Cajon Pass. 1.6 inches of rain fell in 30 minutes at Boulevard.

1992: A massive outbreak of tropical moisture created thunderstorms with some of the heaviest rainfall rates in history. 6.5 inches of rain fell in 90 minutes at Palomar Mountain and four inches fell in two hours at Mt. Laguna.

1972: Tropical Storm Diane sent moisture into the region which produced a thunderstorm in the Afton area, about 40 miles northeast of Barstow. Visibility was reduced to near zero. Flash floods covered Interstate 15 and closed it for half a day. Other roads and railroads were washed out.

1971: During each day from 8/11 to this day it was 100° in Palomar Mountain. This highest temperature on record also occurred on five other days.

1933: A heat wave began on 8/10 and ended on this day in the valleys; temperatures topped 110° for several consecutive days.

1868: Two earthquakes near 8.5 magnitude off Chile produced a 2.64 foot wave height in San Diego.

==================================================================
TROPICAL EAST PACIFIC REPORT:
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Tue Aug 13 2019

For the eastern North Pacific…east of 140 degrees west longitude:

The National Hurricane Center is issuing advisories on recently downgraded Tropical Depression Henriette, located a few hundred miles west-southwest of the southern tip of the Baja California peninsula.

Disorganized showers and thunderstorms located about 1100 miles southwest of the southern tip of the Baja California peninsula are associated with an elongated trough of low pressure. Environmental conditions are forecast to be conducive for gradual development during the next few days, and a tropical depression is likely to form later this week while the system moves west-northwestward at 10 to 15 mph.
* Formation chance through 48 hours…medium…40 percent.
* Formation chance through 5 days…high…70 percent.

A broad area of low pressure is forecast to form south or southeast of the southeastern coast of Mexico late this week. Environmental conditions are expected to be conducive for gradual development of the system over the weekend.
* Formation chance through 48 hours…low…near 0 percent.
* Formation chance through 5 days…low…20 percent.

BULLETIN
Tropical Depression Henriette Advisory Number 6
NWS National Hurricane Center Miami FL EP092019
200 AM PDT Tue Aug 13 2019

…HENRIETTE WEAKENING QUICKLY…
…EXPECTED TO BECOME A REMNANT LOW LATER TODAY…

SUMMARY OF 200 AM PDT…0900 UTC…INFORMATION
———————————————-
LOCATION…21.1N 115.2W
ABOUT 360 MI…580 KM WSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS…30 MPH…45 KM/H
PRESENT MOVEMENT…WNW OR 290 DEGREES AT 13 MPH…20 KM/H
MINIMUM CENTRAL PRESSURE…1008 MB…29.77 INCHES

======================================================================
CURRENT WEATHER @ HESP. @ 0840 Hrs. TEMP: 760 RH: 35% WIND: CALM
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, 60 large fires have burned 1.2 million acres across the country. New large fires were reported in California, Florida, New Mexico, Oklahoma, and Texas yesterday. Firefighters reached containment goals on six large fires yesterday.

Number of new large fires or emergency response 5 States currently reporting large fires:
Number of active large fires
Total does not include individual fires within complexes. 60 Alaska (20)
Arizona (1)
California (3)
Colorado (1)
Florida (1)
Idaho (7)
Montana (5)
Nevada (1)
New Mexico (6)
Oklahoma (1)
Oregon (5)
Utah (6)
Washington (2)
Acres from active fires 1,218,630
Fires contained 6
Year-to-date statistics
2019 (1/1/19 – 8/13/19) Fires: 29,339 Acres: 3,627,677
2018 (1/1/18 – 8/13/18) Fires: 40,392 Acres: 5,623,512
2017 (1/1/17 – 8/13/17) Fires: 41,688 Acres: 6,267,405
2016 (1/1/16 – 8/13/16) Fires: 37,075 Acres: 3,857,015
2015 (1/1/15 – 8/13/15) Fires: 39,830 Acres: 6,506,392
2014 (1/1/14 – 8/13/14) Fires: 36,007 Acres: 2,552,109
2013 (1/1/13 – 8/13/13) Fires: 30,430 Acres: 2,985,895
2012 (1/1/12 – 8/13/12) Fires: 40,694 Acres: 5,880,144
2011 (1/1/11 – 8/13/11) Fires: 47,830 Acres: 6,293,236
2010 (1/1/10 – 8/13/10) Fires: 42,784 Acres: 2,194,040
2009 (1/1/09 – 8/13/09) Fires: 61,457 Acres: 4,989,931
10-year average Year-to-Date
2009-2018 Fires: 41,524 Acres: 4,671,851

Initial attack activity: Moderate (208 new fires)
New large incidents: 5
Large fires contained: 6
Uncontained large fires:*** 18
Area Command teams committed: 0
NIMOs committed: 0
Type 1 IMTs committed: 1
Type 2 IMTs committed: 7

Active Incident Resource Summary
GACC Incidents Cumulative Acres Crews Engines Helicopters Total Personnel
AICC 6 773,290 6 0 2 260
NWCC 12 66,943 57 91 21 2,194
ONCC 1 1,020 4 0 1 109
OSCC 3 1,928 9 29 3 360
NRCC 14 15,096 29 36 10 1,201
GBCC 23 145,464 41 85 15 1,789
SWCC 12 30,576 6 34 3 326
RMCC 2 257 0 0 0 7
EACC 0 0 0 0 0 0
SACC 7 18,691 0 11 0 65
Total 80 1,053,265 152 286 55 6,311

CDF FIRES TO DATE (STATE LANDS SRA)
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: 21
New large incidents: 1
Uncontained large fires: 1

Springs, Vegetation Fire, Mono County, Update
13 miles southeast of Lee Vining
Federal DPA, FRA Inyo National Forest
• 352 (+332) acres, grass and brush, 10% contained (+9% containment)
• Moderate rate of spread with flanking, backing and creeping
• Suppression strategy is monitor/confine
• Incident submitting one ICS-209 Thursdays at 1800
Cow, Vegetation Fire, Tulare County, Update
Golden Trout Wilderness, 13 miles west of Olancha
Federal DPA, FRA Inyo National Forest
• 11(+10) acres, grass and brush, 1% contained (+1% containment)
• Minimal fire behavior with creeping, backing and flanking
• Suppression strategy is monitor/confine
• Incident submitting one ICS-209 Thursdays at 1800
Kelty, Vegetation Fire, Mono County, Update
13 miles west of Benton
Federal DPA, FRA Inyo National Forest
• .9 (+.5) acres grass and brush, 0% contained (+0% containment)
• Minimal fire behavior with smoldering and creeping
• Suppression strategy is monitor/confine
• Incident submitting one ICS-209 Thursdays at 1800
RADIO FIRE
Last Updated 8/12/2019
Date Started 8/12/2019
Location Information David Mountain Radio Road at David Mountain Road in Beaumont
Lat/Long [33.909792, -117.004667]
Status Active
Percentage Contained 0%
Acres Burned 20
Fuel Type
Administrative Unit CAL FIRE/Riverside County Fire Department

Northern California Area (PL 2 )
CA-MEU Moose Fire: 75 acres grass and oak woodland, 0% contained. Incident is located off Moose Rd, 5 miles northwest of Hopland. Fire is burning with a moderate rate of spread. Structures are threatened.

CA-NOD W-1 McDonald Fire: 1,020 acres grass and brush, 75% contained. Precipitation occurred over the incident today, greatly reducing fire behavior.

LOWER FIRE
Last Updated 8/12/2019
Date Started 8/12/2019
Location Information Gas Point Rd & Lower Gas Point Rd in Igo
Lat/Long [40.46968, -122.54364]
Status Active
Percentage Contained 0%
Acres Burned 25
Fuel Type
Administrative Unit CAL FIRE Shasta-Trinity Unit

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