To:	A ALL UNITS	From:	EMAIL: ecswxsupport@gmail.com
Fax	(760) 946-9110	Page	COUNTY 4088
Ph:	OFFICE:(760) 244- 9790 / CELL(760) 559-3032  RADIO:(HAM) KG6ZHW-TABLE MT. / COUNTY F.D: COM-330	Date:	8/31/2010 9:59 AM
	SKYWARN:  NORMAL: NETS ON CRESTLINE on WED     NIGHT @2000PM / TABLE  MT. ON SUNDAY @ 1800 HRS		FLASH FLOOD STATUS:  NORMAL 129 DAYS NO R.F

SYNOP:    A TROUGH OF LOW PRESSURE OVER THE WESTERN STATES WILL WEAKEN THROUGH MIDWEEK

WITH HIGH PRESSURE EXPANDING OVER THE SOUTHWEST STATES FOR THURSDAY THROUGH SATURDAY. THIS

WILL BRING A WARMING TREND THROUGH FRIDAY OR SATURDAY AND A SHALLOWER MARINE LAYER.

ANOTHER TROUGH OF LOW PRESSURE WILL DEVELOP ALONG THE WEST COAST FOR LATE IN THE WEEKEND

THROUGH EARLY NEXT WEEK BRINGING COOLING AND A DEEPER MARINE LAYER.

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APPLE AND YUCCA VALLEYS (CAZ260):  

.TODAY...

 SKY/WEATHER.........MOSTLY SUNNY. 

 MAX TEMPERATURE.....88 TO 94. 

 MIN HUMIDITY........10 TO 15 PERCENT. 

 WIND (20 FT)........VARIABLE 3 TO 6 MPH. 

 LAL.................1. 

 

 .TONIGHT...

 SKY/WEATHER.........MOSTLY CLEAR. 

 MIN TEMPERATURE.....54 TO 62. 

 MAX HUMIDITY........35 TO 45 PERCENT. 

 WIND (20 FT)........WINDS SOUTHWEST 10 MPH. GUSTS TO 20 MPH IN THE 

                     EVENING. 

 LAL.................1. 

 

 .WEDNESDAY...

 SKY/WEATHER.........SUNNY. 

 MAX TEMPERATURE.....94 TO 100. 

 MIN HUMIDITY........10 PERCENT. 

 WIND (20 FT)........VARIABLE 2 TO 5 MPH BECOMING NORTHEAST 10 MPH 

                     IN THE AFTERNOON. 

 LAL.................1.

BARSTOW / DAGGETT / BAKER / FT. IRWIN (CAZ228);  

.TODAY...

 SKY/WEATHER.........SUNNY.

 MAX TEMPERATURE:

     VALLEY FLOOR....89-97.

     24 HR TREND.....ON AVERAGE UP 5 DEGREES.

 MIN HUMIDITY:

     VALLEY FLOOR....8-13 PERCENT.

     24 HR TREND.....ON AVERAGE UP 3 PERCENT.

 WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):

     SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING SOUTHEAST

                     UP TO 10 MPH IN THE AFTERNOON.

     10000 FT MSL....SOUTHWEST 10 TO 15 MPH.

 CHANCE OF PRECIP....0 PERCENT.

 CWR (>= 0.10 IN)....0 PERCENT.

 LAL.................1.

 HAINES INDEX........4.

 

 .TONIGHT...

 SKY/WEATHER.........CLEAR.

 MIN TEMPERATURE:

     VALLEY FLOOR....62-72.

     24 HR TREND.....LITTLE CHANGE.

 MAX HUMIDITY:

     VALLEY FLOOR....25-35 PERCENT.

     24 HR TREND.....ON AVERAGE DOWN 12 PERCENT.

 WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):

     SLOPE/VALLEY....SOUTH WIND UP TO 10 MPH IN THE EVENING BECOMING

                     DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.

     10000 FT MSL....WEST AROUND 10 MPH IN THE EVENING BECOMING

                     LIGHT AND VARIABLE.

 CHANCE OF PRECIP....0 PERCENT.

 CWR (>= 0.10 IN)....0 PERCENT.

 LAL.................1.

 HAINES INDEX........4.

 

 .WEDNESDAY...

 SKY/WEATHER.........SUNNY.

 MAX TEMPERATURE:

     VALLEY FLOOR....96-102.

     24 HR TREND.....ON AVERAGE UP 6 DEGREES.

 MIN HUMIDITY:

     VALLEY FLOOR....6-11 PERCENT.

     24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.

 WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):

     SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH.

     10000 FT MSL....NORTH AROUND 10 MPH.

 CHANCE OF PRECIP....0 PERCENT.

 CWR (>= 0.10 IN)....0 PERCENT.

 LAL.................1.

 HAINES INDEX........5.

 

SAN BERNARDINO N.F. (CAZ255/CAZ256):

.TODAY...
 SKY/WEATHER.........MOSTLY SUNNY.
 MAX TEMPERATURE.....70 TO 80 ABOVE 6000 FEET TO 79 TO 89 BELOW 6000
                     FEET.
 MIN HUMIDITY........10 TO 15 PERCENT ON DESERT SLOPES TO 15 TO 25
                     PERCENT ON COASTAL SLOPES.
 WIND (20 FT)........
    SLOPES...........UPSLOPE 3 TO 6 MPH BECOMING SOUTH 10 MPH IN THE
                     AFTERNOON.
    RIDGETOP.........VARIABLE 2 TO 4 MPH.
 LAL.................1.
 
 .TONIGHT...
 SKY/WEATHER.........MOSTLY CLEAR.
 MIN TEMPERATURE.....41 TO 51 ABOVE 6000 FEET TO 50 TO 60 BELOW 6000
                     FEET.
 MAX HUMIDITY........25 TO 35 PERCENT ON DESERT SLOPES TO 35 TO 45
                     PERCENT ON COASTAL SLOPES.
 WIND (20 FT)........
    SLOPES...........WINDS SOUTHWEST 10 MPH IN THE EVENING BECOMING
                     DOWNSLOPE 2 TO 5 MPH.
    RIDGETOP.........VARIABLE 1 TO 3 MPH.
 LAL.................1.
 
 .WEDNESDAY...
 SKY/WEATHER.........SUNNY.
 MAX TEMPERATURE.....76 TO 86 ABOVE 6000 FEET TO 85 TO 95 BELOW 6000
                     FEET.
 MIN HUMIDITY........10 TO 15 PERCENT.
 WIND (20 FT)........
    SLOPES...........UPSLOPE 2 TO 5 MPH BECOMING NORTHEAST 10 MPH IN
                     THE AFTERNOON.
    RIDGETOP.........VARIABLE 2 TO 4 MPH.
 LAL.................1.

INLAND EMPIRE (CAZ248):

.TODAY...
 SKY/WEATHER.........MOSTLY SUNNY.
 MAX TEMPERATURE.....85 TO 92.
 MIN HUMIDITY........20 TO 25 PERCENT.
 WIND (20 FT)........VARIABLE 2 TO 5 MPH BECOMING NORTHWEST 10 MPH
                     IN THE AFTERNOON.
 LAL.................1.
 
 .TONIGHT...
 SKY/WEATHER.........MOSTLY CLEAR.
 MIN TEMPERATURE.....56 TO 62.
 MAX HUMIDITY........55 TO 65 PERCENT.
 WIND (20 FT)........WINDS WEST 10 MPH AND GUSTY IN THE EVENING
                     BECOMING VARIABLE 2 TO 5 MPH.
 LAL.................1.
 
 .WEDNESDAY...
 SKY/WEATHER.........SUNNY.
 MAX TEMPERATURE.....94 TO 101.
 MIN HUMIDITY........15 TO 20 PERCENT.
 WIND (20 FT)........VARIABLE 2 TO 5 MPH BECOMING NORTHWEST 10 MPH
                     IN THE AFTERNOON.
 LAL.................1.

 

JOSHUA TREE AREA (CAZ261): 

.TODAY...
 SKY/WEATHER.........SUNNY.
 MAX TEMPERATURE.....96 TO 101.
 MIN HUMIDITY........10 TO 15 PERCENT.
 WIND (20 FT)........VARIABLE 3 TO 6 MPH.
 LAL.................1.
 
 .TONIGHT...
 SKY/WEATHER.........MOSTLY CLEAR.
 MIN TEMPERATURE.....68 TO 75.
 MAX HUMIDITY........25 TO 35 PERCENT.
 WIND (20 FT)........WINDS NORTHWEST 10 MPH.
 LAL.................1.
 
 .WEDNESDAY...
 SKY/WEATHER.........SUNNY.
 MAX TEMPERATURE.....101 TO 106.
 MIN HUMIDITY........10 PERCENT.
 WIND (20 FT)........VARIABLE 3 TO 6 MPH.
 LAL.................1.

 

NEEDLES, RIVER BAT. (CAZ229):

.TODAY...

 SKY/WEATHER.........SUNNY.

 MAX TEMPERATURE:

     VALLEY FLOOR....95-101.

     24 HR TREND.....ON AVERAGE UP 5 DEGREES.

 MIN HUMIDITY:

     VALLEY FLOOR....5-10 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 WITH GUSTS TO AROUND 20 MPH IN THE

                     AFTERNOON.

     10000 FT MSL....SOUTHWEST 15 TO 25 MPH DECREASING TO 10 TO 15

                     MPH IN THE AFTERNOON.

 CHANCE OF PRECIP....0 PERCENT.

 CWR (>= 0.10 IN)....0 PERCENT.

 LAL.................1.

 HAINES INDEX........4.

 MIXING HEIGHT.......9000 FT AGL.

 TRANSPORT WINDS.....SOUTHEAST AROUND 10 KNOTS.

 VENTILATION.........VERY GOOD.

 

 .TONIGHT...

 SKY/WEATHER.........CLEAR.

 MIN TEMPERATURE:

     VALLEY FLOOR....68-76.

     24 HR TREND.....ON AVERAGE UP 3 DEGREES.

 MAX HUMIDITY:

     VALLEY FLOOR....18-26 PERCENT.

     24 HR TREND.....ON AVERAGE DOWN 2 PERCENT.

 WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):

     SLOPE/VALLEY....SOUTHWEST WIND AROUND 10 MPH SHIFTING TO THE

                     SOUTH UP TO 10 MPH AFTER MIDNIGHT.

     10000 FT MSL....SOUTHWEST AROUND 10 MPH IN THE EVENING BECOMING

                     LIGHT AND VARIABLE.

 CHANCE OF PRECIP....0 PERCENT.

 CWR (>= 0.10 IN)....0 PERCENT.

 LAL.................1.

 HAINES INDEX........4.

 

 .WEDNESDAY...

 SKY/WEATHER.........SUNNY.

 MAX TEMPERATURE:

     VALLEY FLOOR....100-105.

     24 HR TREND.....ON AVERAGE UP 4 DEGREES.

 MIN HUMIDITY:

     VALLEY FLOOR....5-10 PERCENT.

     24 HR TREND.....LITTLE CHANGE.

 WIND (SLOPE/VALLEY=20 FT, 10 MIN AVG):

     SLOPE/VALLEY....UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING NORTH UP

                     TO 10 MPH IN THE AFTERNOON.

     10000 FT MSL....NORTHWEST AROUND 10 MPH.

 CHANCE OF PRECIP....0 PERCENT.

 CWR (>= 0.10 IN)....0 PERCENT.

 LAL.................1.

 HAINES INDEX........5.

 MIXING HEIGHT.......9000 FT AGL.

 TRANSPORT WINDS.....LIGHT AND VARIABLE.

 VENTILATION.........GOOD.

 

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

Los Angeles Co. Valleys (CAZ247/CAZ248):

.TODAY...

 SKY/WEATHER.........MOSTLY SUNNY. 

 MAX TEMPERATURE.....79-89. 

    24 HR TREND......UP 6. 

 MIN HUMIDITY........25-40 PERCENT. 

    24 HR TREND......DOWN 10. 

 20-FOOT WINDS.......VARIABLE 3-6 MPH BECOMING SOUTH TO SOUTHWEST

                     8-15 MPH IN THE AFTERNOON. 

 MARINE LAYER........NONE. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT. 

 

 .TONIGHT...

 SKY/WEATHER.........MOSTLY CLEAR. 

 MIN TEMPERATURE.....53-61. 

 MAX HUMIDITY........60-80 PERCENT. 

 20-FOOT WINDS.......SOUTH TO SOUTHWEST 6-12 MPH IN THE EVENING 

                     BECOMING VARIABLE 3-6 MPH. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT. 

 

 .WEDNESDAY...

 SKY/WEATHER.........MOSTLY SUNNY. 

 MAX TEMPERATURE.....88-98. 

 MIN HUMIDITY........15-30 PERCENT. 

 20-FOOT WINDS.......VARIABLE 3-6 MPH BECOMING SOUTH TO SOUTHWEST 

                     6-12 MPH IN THE AFTERNOON. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT.

Angeles National Forest (CAZ253/CAZ254):

.TODAY...

 SKY/WEATHER.........SUNNY. 

 MAX TEMPERATURE.....77-87 LOW ELEVATIONS TO 68-76 HIGHER ELEVATIONS. 

    24 HR TREND......UP 9. 

 MIN HUMIDITY........15-35 PERCENT. 

    24 HR TREND......DOWN 5-15. 

 20-FOOT WINDS....... 

     VALLEYS/LWR SLOPES...NORTHWEST 5-10 MPH BECOMING SOUTHWEST 8-15

                          MPH WITH LOCAL GUSTS TO 22 MPH IN THE AFTERNOON. 

     RIDGES/UPR SLOPES....NORTH 8-15 MPH WITH LOCAL GUSTS TO 25 MPH BECOMING

                          WEST 8-15 MPH IN THE AFTERNOON. 

 MARINE LAYER........NONE. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT. 

 

 .TONIGHT...

 SKY/WEATHER.........MOSTLY CLEAR. 

 MIN TEMPERATURE.....55-64 EXCEPT 40-50 HIGH VALLEYS. 

 MAX HUMIDITY........35-55 PERCENT EXCEPT 70-90 PERCENT IN HIGH VALLEYS. 

 20-FOOT WINDS....... 

     VALLEYS/LWR SLOPES...SOUTHWEST TO WEST 8-15 MPH WITH LOCAL GUSTS TO

                          20 MPH IN THE EVENING BECOMING NORTHWEST

                          6-12 MPH. 

     RIDGES/UPR SLOPES....WEST TO NORTHWEST 8-15 MPH IN THE EVENING

                          BECOMING NORTH 6-12 MPH OVERNIGHT. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT. 

 

 .WEDNESDAY...

 SKY/WEATHER.........MOSTLY SUNNY. 

 MAX TEMPERATURE.....87-96 LOW ELEVATIONS TO 71-81 HIGHER PEAKS. 

 MIN HUMIDITY........10-30 PERCENT. 

 20-FOOT WINDS....... 

     VALLEYS/LWR SLOPES...NORTH TO NORTHEAST 6-12 MPH BECOMING SOUTHWEST 

                          8-15 MPH IN THE AFTERNOON. 

     RIDGES/UPR SLOPES....NORTH TO NORTHEAST 6-12 MPH BECOMING SOUTH 

                          8-15 MPH IN THE AFTERNOON. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT.

Antelope Valley (CAZ259):

.TODAY...

 SKY/WEATHER.........SUNNY. 

 MAX TEMPERATURE.....82-90. 

    24 HR TREND......UP 8. 

 MIN HUMIDITY........10-20 PERCENT. 

    24 HR TREND......DOWN 5. 

 20-FOOT WINDS.......VARIABLE 3-8 MPH BECOMING SOUTHWEST 8-15 MPH WITH

                     LOCAL GUSTS TO 20 MPH BY LATE AFTERNOON. 

 MARINE LAYER........NONE. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT. 

 

 .TONIGHT...

 SKY/WEATHER.........MOSTLY CLEAR. 

 MIN TEMPERATURE.....48-56. 

 MAX HUMIDITY........30-50 PERCENT. 

 20-FOOT WINDS.......WEST 8-15 MPH WITH GUSTS TO 25 MPH IN THE EVENING

                     BECOMING VARIABLE 3-8 MPH. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT. 

 

 .WEDNESDAY...

 SKY/WEATHER.........MOSTLY SUNNY. 

 MAX TEMPERATURE.....92-100. 

 MIN HUMIDITY........7-18 PERCENT.

 20-FOOT WINDS.......NORTH TO NORTHEAST 6-12 MPH BECOMING SOUTHWEST

                     8-15 MPH LATE IN THE AFTERNOON. 

 LAL.................1. 

 CWR (>0.10 IN)......0 PERCENT.

Kern Co. Deserts (CAZ298): 

.TODAY...

 SKY/WEATHER.........SUNNY. 

 MAX TEMPERATURE.....82-92. 

    24 HR TREND......UP 2-8 DEGREES. 

 MIN HUMIDITY........8-18 PERCENT. 

    24 HR TREND......DOWN 3-7 PERCENT. 

 20-FOOT WINDS.......VARIABLE 2-5 MPH BECOMING SOUTHWEST 7-14 MPH

                     DURING THE AFTERNOON. 

 LAL.................1. 

 

 .TONIGHT...

 SKY/WEATHER.........CLEAR. 

 MIN TEMPERATURE.....52-62. 

    24 HR TREND......UP 2-4 DEGREES. 

 MAX HUMIDITY........31-41 PERCENT. 

    24 HR TREND......DOWN 5-15 PERCENT. 

 20-FOOT WINDS.......WEST 7-14 MPH IN THE EARLY EVENING DECREASING 

                     TO 4 MPH. 

 LAL.................1. 

 

 .WEDNESDAY...

 SKY/WEATHER.........SUNNY. 

 MAX TEMPERATURE.....88-98. 

    24 HR TREND......UP 5-8 DEGREES. 

 MIN HUMIDITY........7-17 PERCENT. 

    24 HR TREND......DOWN 1-3 PERCENT. 

 20-FOOT WINDS.......VARIABLE 2-5 MPH BECOMING SOUTHEAST 5-10 MPH

                     DURING THE AFTERNOON.  

 LAL.................1.

San Juan Capistrano CA:

Today: Patchy fog before 11am. Otherwise, sunny, with a high near 73. Calm wind becoming west between 5 and 10 mph. 



Tonight: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 58. West wind between 5 and 10 mph becoming calm. 



Wednesday: Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming west between 5 and 10 mph. 



Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 60. West wind between 5 and 10 mph becoming calm.

Tehachapi

Today: Sunny, with a high near 79. Northwest wind between 5 and 7 mph. 



Tonight: Clear, with a low around 47. West wind between 3 and 10 mph. 



Wednesday: Sunny, with a high near 86. Calm wind becoming east between 4 and 7 mph. 



Wednesday Night: Clear, with a low around 50. West wind between 3 and 7 mph.

Las Vegas:

Today: Sunny, with a high near 93. Calm wind becoming southeast between 4 and 7 mph. 



Tonight: Clear, with a low around 71. South southeast wind between 4 and 7 mph becoming calm. 



Wednesday: Sunny, with a high near 98. Calm wind becoming east around 5 mph. 



Wednesday Night: Clear, with a low around 73. Light and variable wind.

Tucson:

Today: Mostly sunny, with a high near 99. East southeast wind 5 to 8 mph becoming west. 



Tonight: Partly cloudy, with a low around 73. West northwest wind 5 to 10 mph becoming east southeast. 



Wednesday: Mostly sunny, with a high near 100. North northwest wind between 5 and 8 mph. 



Wednesday Night: Partly cloudy, with a low around 73. Northwest wind 6 to 8 mph becoming east.

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ON THIS DAY:

2007: A severe thunderstorm in Lake Elsinore produced severe winds, which downed trees, power lines and caused roof damage. Another heavy thunderstorm hit Wrightwood and produced a debris flow that damaged roads along Sheep Creek and trapped motorists. This was the first of three consecutive days (also 9.1 and 9.2) of flash flooding in Wrightwood. Other thunderstorms dropped a blanket of hail over vast areas between Big Bear Lake and the San Gorgonio Wilderness. A significant accumulation of small hail was seen for many days at the top of Mt. San Gorgonio.

 

1998: Strong thunderstorms developed each day starting on 8.29 and ending on this day. 1.5 inches of rain fell at Apple Valley, 0.77 inch fell in only 45 minutes at Wrightwood, and 0.68 inch fell in only 30 minutes at Forest Falls. Homes and roads were flooded with four to six feet of water in Hesperia and Apple Valley. Rock slides occurred in Mill Creek. Roads were flooded in Sugarloaf and Forest Falls. Flash flooding was also recorded in Hemet. Severe thunderstorm wind gusts of 86 mph hit Sage (south of Hemet). Gusts of 50 mph were recorded at Rialto and gusts of 45 mph hit San Marcos. Trees and power lines were downed. Fires were started by lightning near Barona Ranch. Record heat occurred near the coast as well on these same days. Temperatures hit 112° in Yorba Linda, 110° in Hemet and Riverside, and over 100° in most of Orange County. It was 114° in Dulzura on 8.29.

 

1977: The wettest August on record in San Diego ended on this day with 2.13 inches.

 

1972: Hurricane Hyacinth moved as far west as 125 West before recurving to the northeast. The remnants made landfall between Los Angeles and San Diego on 9.3 with winds of 25 mph and rainfall of up to one inch in the mountains from 8.29 to 9.6. This tropical cyclone holds the distinction of traveling the farthest west before recurving and making landfall in Southern California. This occurred during the El Niño of 1972-73. Only 0.44 inch was measured in San Diego.

 

1967: Hurricane Katrina crossed the southern tip of Baja California, then traversed almost the entire length of the Gulf of California before making landfall again and rapidly weakening. More than two inches of rain fell on 8.30 and on this day. Two inches fell at La Quinta and the city was cut off for several hours. 150 homes were damaged by floods in Palm Desert and Indian Wells. Numerous roads were washed out in the Coachella Valley. The Fort Irwin road north of Barstow was flooded, isolating the army base on 8.30.

 

1955: A prolonged heat wave started on this day and ended on 9.7. It was 110° in LA on 9.1, an all time record. It was 98° in San Diego and 103° in Santa Ana on this day, both highest temperatures on record for August.

 

1939: Sea surface temperatures off the coast for the month of August were in the upper 70s, with some reports near San Diego of 80°. This occurred ahead of the tropical storms of the following month of 9.1939.

 

1928: It was 42° in Escondido, the lowest temperature on record for August.

 

1889: LA recorded its greatest 24 hour rainfall amount for August at 0.61 inch.

 

TROPICAL UPDATES:

FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE..

 

A BROAD AREA OF LOW PRESSURE LOCATED ABOUT 350 MILES SOUTH-SOUTHWEST OF MANZANILLO MEXICO CONTINUES TO PRODUCE DISORGANIZED SHOWERS AND A FEW THUNDERSTORMS.  UPPER-LEVEL WINDS APPEAR MARGINALLY CONDUCIVE FOR SOME SLOW DEVELOPMENT OF THIS SYSTEM AS IT MOVES NORTHWESTWARD NEAR 10 MPH.  THERE IS A MEDIUM CHANCE...30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.

 

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS.

 

Fire Potential Discussion:

The potential for large fire will increase slowly through Saturday as temperatures warm and humidity decreases. The best chance for getting a large fire through Saturday will be over the foothill locations of both Central and Southern California where large continuous areas of dead fine fuels can be found. The potential for large fire will decrease across the region Sunday through early next week as temperatures cool and humidity increases. The best chance of large fire will switch to the desert mountain slopes such as the Antelope Valley and Owens Valley where it will be windy and dry. If a fire occurs in a windy location, it will have rapid rates of spread and long range spotting potential. IA activity is expected to be light through early next week with the best chance for moderate activity Friday and Saturday when temperatures will be at their highest and humidity at its lowest.

 

OUTLOOK FOR SOUTH ZONE:

A ridge of high pressure building into California from the Pacific Ocean will bring a warming trend and low humidity to most of the region through Saturday. Temperatures over the warmer valley and foothill locations will reach or slightly exceed 100 degrees and minimum humidity will be between 5% and 15% over much of the region Thursday through Saturday. The ridge will weaken as a Pacific trough drops down the West Coast bringing a cooling trend and an increase in humidity Sunday through early next week. There will be gusty westerly afternoon winds over the mountains and deserts Sunday through early next week. Winds will be between 15 and 25 mph with gusts to 40 mph over the wind prone areas.

 

3 to 7 Outlook      THURSDAY THROUGH MONDAY

 

Coast and Coastal Valleys... No significant weather.

Inland Valleys and Surrounding Foothills... No significant weather.

 

Mountains (Excluding the Sierra Range... No significant weather

 

Sierras... No significant weather

Deserts... No significant weather

 

-----------------------------------------------------------------------------------------------

CURRENT WEATHER @ HESP. @0940hrs TEMP:78° RH:35% WIND: CALM

0.00” RF @ HESP. STA.SINCE JUL 1st/20 YR AVG: 6.75” AUG:0.00”   YTD S/F: 0.00” /

 

Fire info: