BDC FIRE WEATHER AND INFO 9/13/17

DAILY FIRE WEATHER & FIRE INFO            

To:     ALL UNITS From: EMAIL: pdupree@bdcecs.org
Ph: OFFICE:(760) 559-3032  RADIO:(HAM) KG6ZHW

COUNTY F.D RADIO: #733784 COM-330  

Date: 9/13/17
SKYWARN: NORMAL

NETS ON WED  NIGHT @1900 HEAPS PK./WX BRIEFS TABLE  MT. ON SUN @ 1800 HRS

DAYS NO R.F. @ STA.: 02

 

National Preparedness Level 5 

Southern California Area

Preparedness Level: (PL 3) 

Northern California Area

Preparedness Level (PL 4) SYNOP: The upper level low which has been responsible for the convection the past few days will finally move eastward today and Thursday as a trough moves into the area. This will result in a decrease in shower and thunderstorm activity, and after Thursday, no precipitation is expected throughout the forecast period. Today, there will a chance of showers and wet thunderstorms in the Sierras westward into Monterey County as well as the deserts north of I-15. Thursday, only a handful of storms may occur near the Crest during the afternoon. Much cooler temperatures are expected over the next few days as moderate to strong onshore flow develops. High temperatures today will be 3-5 degrees cooler, and by Friday, look for valley temperatures to only reach the upper 70s to the lower 80s in the valleys to the mid 90s in the desert. Gusty west winds of 20-30 mph will be possible during the afternoon hours in the Kern County Mountains, the Antelope Valley, the Banning Pass and the eastern side of the Cleveland National Forest Thursday and Friday. Look for marine layer cloudiness to increase with stratus possibly reaching the lower coastal slopes by Friday morning. This weekend, temperatures will warm a bit and winds will become light. A deeper trough may bring even cooler weather to the region next Tuesday along with strong winds in the mountains and deserts as well as the Owens Valley. Offshore flow may be possible at the end of next week, marking the start of autumn. FLASH FLOOD POTENTIAL INDEX FOR EXTREME SOUTHWESTERN CALIFORNIA

Isolated showers and thunderstorms over the mountains and high

deserts this evening. Due to marginal moisture the flash flood

potential is low. Dry weather will develop Wednesday through early

next week.

                                                       WED        THU

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 NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)

Low pressure moving through the area today and Thursday will help generate showers and thunderstorms across parts of the region. On Friday, a trough moving through the Great Basin will keep the threat of precipitation across northern Lincoln County but otherwise, expect dry conditions elsewhere. Gusty winds will develop today and continue at times through Saturday. Expect seasonably warm temperatures today but then cooler conditions settle over the area Thursday-Saturday. Dry conditions and below normal temperatures are forecast for Sunday into next week.

 

SPECIAL NOTES: N/A

 

DAILY FUELS/FIRE POTENTIAL:

Large fire potential will remain low today, mainly due to higher fine fuel moisture brought about by many days of humid conditions. However, gusty winds and southwesterly flow aloft will result in a change of the fire environment to one more supportive of rapid rates of spread Thursday and Friday. Minimum RH may fall back into the teens, with locally lower readings on the north side of the Angeles and San Bernardino National Forest. Fine fuel moisture may drop significantly in both live and dead fuels above and inland from the marine layer during the second half of the week. The highest potential for large fires will be in the desert interface regions late this week. In addition, some holdover fires will be possible due to the heavy lightning activity that occurred on Sunday and Monday. Large fire potential and IA should be minimal this weekend due to near to slightly below normal temperatures and light winds. Out of region demand may drop rapidly this week due to expected rain in the northwest and northern Rockies

 

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

 

————————————————————————————–APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):

.WEDNESDAY…

Sky/weather………Mostly sunny.

Max temperature…..86 to 96.

24 HR TREND……Down 4 degrees.

Min humidity……..15 to 20 percent.

24 HR TREND……Down 5 percent.

WIND (20 FT)……..Winds northwest 6 to 11 mph becoming south 6 to

16 mph in the afternoon. Gusts to 30 mph.

LAL……………..1.

.WEDNESDAY NIGHT…

Sky/weather………Mostly clear.

Min temperature…..53 to 63.

24 HR TREND……Down 1 degree.

Max humidity……..50 to 60 percent.

24 HR TREND……Down 5 percent.

WIND (20 FT)……..Winds southwest 6 to 16 mph with gusts to 30

mph.

LAL……………..1.

.THURSDAY…

Sky/weather………Mostly sunny.

Max temperature…..81 to 87.

24 HR TREND……Down 6 degrees.

Min humidity……..25 to 30 percent.

24 HR TREND……Up 10 percent.

WIND (20 FT)……..Winds west 8 to 18 mph with gusts to 35 mph.

LAL……………..1.

 WRIGHTWOOD:

Wednesday

Sunny, with a high near 73. South wind 10 to 15 mph, with gusts as high as 20 mph.

Wednesday Night

Clear, with a low around 51. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.

Thursday

Sunny, with a high near 69. Northwest wind 10 to 20 mph, with gusts as high as 30 mph.

Thursday Night

Mostly clear, with a low around 54. West wind 15 to 20 mph, with gusts as high as 30 mph.

 PHELAN:

Wednesday

Sunny, with a high near 81. South wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

Wednesday Night

Clear, with a low around 54. South wind 15 to 20 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 30 mph.

Thursday

Sunny, with a high near 77. South wind 5 to 15 mph becoming west in the morning. Winds could gust as high as 25 mph.

Thursday Night

Mostly clear, with a low around 56. West wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.

 TRONA:

Wednesday

A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 101. South southwest wind 5 to 15 mph, with gusts as high as 21 mph.

Wednesday Night

Mostly clear, with a low around 67. South wind 5 to 14 mph, with gusts as high as 20 mph.

Thursday

Sunny, with a high near 101. South wind 5 to 13 mph.

Thursday Night

Mostly clear, with a low around 66. Southwest wind 5 to 13 mph.

 

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

WEDNESDAY…  * Sky/Weather………Mostly sunny.  * Max temperature:  *     Valley floor….100-105.  *     24 hr trend…..Little change.  * Min humidity:  *     Valley floor….12-17 percent.  *     24 hr trend…..On average down 2 percent.  * Wind (Slope/valley=20 ft, 10 min avg):  *     Valley floor….West wind up to 10 mph shifting to the southwest        in the afternoon.  *   10000 ft msl….South 15 to 25 mph increasing to 20 to 30 mph in        the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.  .WEDNESDAY NIGHT…  * Sky/Weather………Partly cloudy.  * Min temperature:  *     Valley floor….57-62.  *     24 hr trend…..On average down 9 degrees.  * Max humidity:  *     Valley floor….42-47 percent.  *     24 hr trend…..On average down 2 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 increasing to 30 to 40 mph        after midnight.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.  .THURSDAY…  * Sky/Weather………Mostly sunny.  * Max temperature:  *     Valley floor….95-100.  *     24 hr trend…..On average down 5 degrees.  * Min humidity:  *     Valley floor….13-21 percent.  *     24 hr trend…..On average up 2 percent.  * Wind (Slope/valley=20 ft, 10 min avg):  *     Valley floor….West wind 10 to 15 mph. Gusts up to 30 mph in the        afternoon.  *     10000 ft msl….West 15 to 25 mph shifting to the northwest 15 to        20 mph in the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.

 

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS:

WEDNESDAY…  * Sky/Weather………Partly cloudy with isolated showers and    thunderstorms.  * Max temperature:  *     Valley floor….88-93.  *     7000 feet…….75-80.  *     24 hr trend…..On average down 2 degrees.  * Min humidity:  *     Valley floor….9-15 percent.  *     7000 feet…….22-32 percent.  *     24 hr trend…..On average down 8 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Upslope/upvalley 4 to 8 mph becoming south 10 to        15 mph with gusts to around 30 mph in the afternoon.  *     Upper slopes….Southeast winds up to 10 mph increasing to 10 to        15 mph in the afternoon. Gusts up to 30 mph.  *     10000 ft msl….South 20 to 30 mph.  * CWR (>= 0.10 in)….20 percent. * LAL……………..2 increasing to 3 in the afternoon.  * Haines Index……..4.  .WEDNESDAY NIGHT…  * Sky/Weather………Mostly cloudy then becoming partly cloudy.    Isolated rain showers in the evening. Isolated thunderstorms through    the night. Scattered rain showers after midnight.  * Min temperature:  *     Valley floor….55-60.  *     7000 feet…….31-36.  *     24 hr trend…..On average down 4 degrees.  * Max humidity:  *     Valley floor….43-48 percent.  *     7000 feet…….64-69 percent.  *     24 hr trend…..On average down 6 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….South winds up to 10 mph shifting to the        northwest after midnight.  *     Upper slopes….Downslope/downvalley 2 to 5 mph becoming north up        to 10 mph after midnight.  *     10000 ft msl….South 20 to 30 mph becoming southeast 10 to 15        mph after midnight.  * CWR (>= 0.10 in)….5 percent. * LAL……………..2.  * Haines Index……..5.  .THURSDAY…  * Sky/Weather………Partly cloudy with isolated showers and    thunderstorms in the afternoon.  * Max temperature:  *     Valley floor….87-92.  *     7000 feet…….74-79.  *     24 hr trend…..Little change.  * Min humidity:  *     Valley floor….15-21 percent.  *     7000 feet…….22-32 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 south up to        10 mph in the afternoon.  *     Upper slopes….West winds up to 10 mph. Gusts up to 30 mph in        the afternoon.  *     10000 ft msl….North 10 to 15 mph becoming northwest in the        afternoon.  * CWR (>= 0.10 in)….5 percent. * LAL……………..1 increasing to 2 in the afternoon.  * Haines Index……..3.

 

INLAND EMPIRE (CAZ248):

WEDNESDAY…

Sky/weather………Mostly cloudy…becoming mostly sunny. Patchy

fog in the morning.

Max temperature…..80 to 87.

24 HR TREND……Down 9 degrees.

Min humidity……..30 to 40 percent.

24 HR TREND……Up 5 percent.

WIND (20 FT)……..Variable 2 to 5 mph becoming west 6 to 11 mph

with gusts to 20 mph in the afternoon.

LAL……………..1.

.WEDNESDAY NIGHT…

Sky/weather………Mostly clear…becoming cloudy. Patchy fog

after midnight. Patchy drizzle after midnight.

Min temperature…..50 to 60.

24 HR TREND……Down 7 degrees.

Max humidity……..85 to 95 percent.

24 HR TREND……Up 10 percent.

WIND (20 FT)……..Winds west 6 to 11 mph with gusts to 20 mph in

the evening becoming variable 2 to 5 mph.

LAL……………..1.

.THURSDAY…

Sky/weather………Cloudy…becoming partly cloudy. Patchy fog in

the morning. Patchy drizzle in the morning.

Max temperature…..72 to 80.

24 HR TREND……Down 6 degrees.

Min humidity……..40 to 50 percent.

24 HR TREND……Up 5 percent.

WIND (20 FT)……..Winds south around 6 mph becoming west 6 to 11

mph with gusts to 25 mph in the afternoon.

LAL……………..1.

 

DEVORE:

Wednesday

Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

Wednesday Night

Patchy drizzle and fog after 11pm. Increasing clouds, with a low around 55. Southwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

Thursday

Patchy drizzle and fog before 11am. Mostly cloudy, with a high near 74. Light south wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

Thursday Night

Patchy drizzle and fog after 11pm. Mostly cloudy, with a low around 56. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

 

CHINO HILLS:

Wednesday

Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday Night

Patchy drizzle and fog after 11pm. Increasing clouds, with a low around 60. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

Thursday

Patchy drizzle and fog before 11am. Mostly cloudy, with a high near 77. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

Thursday Night

Patchy drizzle and fog after 11pm. Mostly cloudy, with a low around 63. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

 

COLTON:

Wednesday

Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. Light southwest wind becoming west 5 to 10 mph in the afternoon.

Wednesday Night

Patchy drizzle and fog after 11pm. Increasing clouds, with a low around 63. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.

Thursday

Patchy drizzle and fog before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

Thursday Night

Patchy drizzle and fog after 11pm. Mostly cloudy, with a low around 62. West wind 5 to 15 mph, with gusts as high as 20 mph.

 

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

WEDNESDAY…

Sky/weather………Mostly sunny.

Max temperature…..68 to 78 above 6000 feet to 74 to 84 below 6000

feet.

24 HR TREND……Down 6 degrees.

Min 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 south 6 to 14 mph. Gusts to 30 mph.

RIDGETOP………Winds south 6 to 13 mph. Gusts to 30 mph.

LAL……………..1.

.WEDNESDAY NIGHT…

Sky/weather………Mostly clear.

Min temperature…..38 to 48 above 6000 feet to 43 to 53 below 6000

feet.

24 HR TREND……Down 15 degrees.

Max humidity……..30 to 40 percent on desert slopes to 70 to 80

percent on coastal slopes.

24 HR TREND……Down 15 percent.

WIND (20 FT)……..

SLOPES………..Winds south 6 to 16 mph with gusts to 30 mph.

RIDGETOP………Winds southwest 6 to 16 mph with gusts to 30

mph.

LAL……………..1.

.THURSDAY…

Sky/weather………Partly cloudy…becoming mostly sunny.

Max temperature…..64 to 74 above 6000 feet to 69 to 79 below 6000

feet.

24 HR TREND……Down 10 degrees.

Min humidity……..20 to 30 percent on desert slopes to 40 to 50

percent on coastal slopes.

24 HR TREND……Up 10 percent.

WIND (20 FT)……..

SLOPES………..Winds west 6 to 16 mph with gusts to 30 mph.

RIDGETOP………Winds northwest 6 to 15 mph with gusts to 30

mph.

LAL……………..1.

BANNING PASS:

.WEDNESDAY…

Sky/weather………Mostly sunny.

Max temperature…..99 to 104.

24 HR TREND……Down 4 degrees.

Min humidity……..15 to 20 percent.

24 HR TREND……Little change.

WIND (20 FT)……..Winds west 8 to 18 mph. Gusts to 25

mph…becoming 35 mph in the afternoon.

LAL……………..1.

.WEDNESDAY NIGHT…

Sky/weather………Mostly clear.

Min temperature…..62 to 72.

24 HR TREND……Down 10 degrees.

Max humidity……..35 to 45 percent.

24 HR TREND……Up 5 percent.

WIND (20 FT)……..Winds northwest 10 to 20 mph with gusts to 40

mph.

LAL……………..1.

.THURSDAY…

Sky/weather………Sunny.

Max temperature…..90 to 95.

24 HR TREND……Down 12 degrees.

Min humidity……..20 to 25 percent.

24 HR TREND……Little change.

WIND (20 FT)……..Winds west 13 to 23 mph with gusts to 45 mph.

LAL……………..1.

 

JOSHUA TREE AREA (CAZ261):

WEDNESDAY…  * Sky/weather…………………Mostly sunny.  * Max Temperature……………..85-99.  *    24 hr trend………………3 degrees cooler.  * Min Humidity………………..16-23 pct.  *    24 hr trend………………Little RH change.  * 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………4 or low potential for large    plume dominated fire growth.  .WEDNESDAY NIGHT…  * Sky/weather…………………Clear.  * Min Temperature……………..59-70.  *    24 hr trend………………8 degrees cooler.  * Max Humidity………………..36-47 pct.  *    24 hr trend………………Little RH change.  * Winds – 20 foot…Slope/Valley..West 5 to 15 mph.  * Winds…10000 FT MSL…………South 25 to 35 mph.  * Chance of Precip…………….0 percent.  * CWR (>= 0.10 IN)…………….0 percent.  * LAL………………………..1.  .THURSDAY…  * Sky/weather…………………Sunny.  * Max Temperature……………..77-91.  *    24 hr trend………………8 degrees cooler.  * Min Humidity………………..16-31 pct.  *    24 hr trend………………3 pct wetter.  * Winds – 20 foot…Slope/Valley..West 5 to 15 mph.  * Winds…10000 FT MSL…………West 15 to 25 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):

.WEDNESDAY…  * Sky/Weather………Partly cloudy with isolated showers and    thunderstorms in the afternoon.  * Max temperature:  *     Valley floor….102-107.  *     24 hr trend…..On average down 2 degrees.  * Min humidity:  *     Valley floor….13-20 percent.  *     24 hr trend…..Little change.  * Wind (Slope/valley=20 ft, 10 min avg):  *     Valley floor….Upslope/upvalley 4 to 8 mph becoming south 10 to        15 mph in the afternoon.  *     10000 ft msl….South 20 to 30 mph.  * CWR (>= 0.10 in)….5 percent.  * LAL……………..1 increasing to 2 in the afternoon.  * Haines Index……..3.  * Mixing height…….13400 ft agl.  * Transport winds…..Light winds becoming south 15 to 20 knots in    the afternoon.  * Ventilation………Excellent.  .WEDNESDAY NIGHT…  * Sky/Weather………Partly cloudy with isolated showers and    thunderstorms after midnight.  * Min temperature:  *     Valley floor….67-72.  *     24 hr trend…..On average down 7 degrees.  * Max humidity:  *     Valley floor….39-44 percent.  *     24 hr trend…..Little change.  * Wind (Slope/valley=20 ft, 10 min avg):  *     Valley floor….South wind 10 to 15 mph decreasing to around 10        mph after midnight.  *     10000 ft msl….South 20 to 30 mph increasing to 25 to 35 mph        after midnight.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1 increasing to 2 after midnight.  * Haines Index……..3.  .THURSDAY…  * Sky/Weather………Partly cloudy. Scattered rain showers and isolated    thunderstorms in the morning.  * Max temperature:  *     Valley floor….97-102.  *     24 hr trend…..On average down 5 degrees.  * Min humidity:  *     Valley floor….10-16 percent.  *     24 hr trend…..On average down 3 percent.  * Wind (Slope/valley=20 ft, 10 min avg):  *     Valley floor….South wind up to 10 mph increasing to 10 to 15        mph in the afternoon. Gusts up to 30 mph.  *     10000 ft msl….South 35 to 45 mph becoming southwest 20 to 30        mph in the afternoon.  * CWR (>= 0.10 in)….5 percent.  * LAL……………..2 decreasing to 1 in the afternoon.  * Haines Index……..5.  * Mixing height…….9200 ft agl.  * Transport winds…..South 10 to 15 knots.  * Ventilation………Excellent.

 

LAS VEGAS CLARK COUNTY BORDER:

.WEDNESDAY…  * Sky/Weather………Partly cloudy with isolated showers and    thunderstorms in the afternoon.  * Max temperature:  *     4000 feet…….93-98.  *     24 hr trend…..On average down 4 degrees.  * Min humidity:  *     4000 feet…….16-22 percent.  *     24 hr trend…..Little change.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Upslope/upvalley 4 to 8 mph becoming south 10 to        15 mph in the afternoon.  *     10000 ft msl….South 10 to 15 mph increasing to 15 to 20 mph in        the afternoon.  * CWR (>= 0.10 in)….15 percent.  * LAL……………..1 increasing to 3 in the afternoon.  * Haines Index……..4.  * Mixing height…….13800 ft agl.  * Transport winds…..Light winds becoming south 10 to 15 knots in    the afternoon.  * Ventilation………Excellent.  .WEDNESDAY NIGHT…  * Sky/Weather………Partly cloudy with isolated showers and    thunderstorms through the night.  * Min temperature:  *     4000 feet…….62-67.  *     24 hr trend…..On average down 4 degrees.  * Max humidity:  *     4000 feet…….47-52 percent.  *     24 hr trend…..Little change.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….South winds 10 to 15 mph shifting to the        southwest after midnight.  *     10000 ft msl….South 15 to 25 mph increasing to 20 to 30 mph        after midnight.  * CWR (>= 0.10 in)….5 percent.  * LAL……………..2.  * Haines Index……..4.  .THURSDAY…  * Sky/Weather………Partly cloudy with isolated showers and    thunderstorms in the morning.  * Max temperature:  *     4000 feet…….87-92.  *     24 hr trend…..On average down 6 degrees.  * Min humidity:  *     4000 feet…….15-21 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 20 to 30 mph becoming southwest around 10        mph in the afternoon.  * CWR (>= 0.10 in)….5 percent.  * LAL……………..2 decreasing to 1 in the afternoon.  * Haines Index……..5.  * Mixing height…….8700 ft agl.  * Transport winds…..Light winds.  * Ventilation………Good.

 

*************************** OUT OF COUNTY *************************************

LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ247/CAZ249):.WEDNESDAY…  Sky/weather………Mostly sunny except areas of morning low clouds                      and fog.  Max temperature…..78-86.     24 hr trend……Down 6.  Min humidity……..40-55 percent.     24 hr trend……Little change.  20-foot winds…….Variable 3-6 mph becoming southwest 6-12 mph                      with local gusts to 20 mph in the afternoon.  Marine layer……..1500 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY NIGHT…  Sky/weather………Mostly clear then low clouds and fog with                      patchy drizzle after midnight.  Min temperature…..56-64.  Max humidity……..80-100 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.  .THURSDAY…  Sky/weather………Morning low clouds and fog then partly cloudy.                      Patchy drizzle in the morning.  Max temperature…..72-81.  Min humidity……..45-60 percent.  20-foot winds…….Variable 3-6 mph becoming southwest 6-12 mph                      with local gusts to 20 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. LOS ANGELES COUNTY SAN FERNANDO VALLEY:.WEDNESDAY…  Sky/weather………Mostly sunny except areas of morning low clouds                      and fog.  Max temperature…..76-85.     24 hr trend……Down 7.  Min humidity……..35-50 percent.     24 hr trend……Up 5.  20-foot winds…….Variable 3-6 mph becoming south 6-12 mph with                      local gusts to 20 mph in the afternoon.  Marine layer……..1500 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY NIGHT…  Sky/weather………Mostly clear then low clouds and fog with                      patchy drizzle after midnight.  Min temperature…..54-64.  Max humidity……..80-100 percent.  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.  .THURSDAY…  Sky/weather………Morning low clouds and fog then partly cloudy.                     Patchy drizzle in the morning.  Max temperature…..71-81.  Min humidity……..45-65 percent.  20-foot winds…….Southwest 6-12 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent. SANTA MONICA MOUNTAINS RECREATIONAL AREA:WEDNESDAY…  Sky/weather………Morning low clouds and fog then mostly sunny.  Max temperature…..72-82.     24 hr trend……Down 5.  Min humidity……..40-55 percent except 55-65 percent coastal                      slopes and higher peaks.     24 hr trend……Little change.  20-foot winds…….      Valleys/lwr slopes…Variable 3-6 mph becoming southwest 6-12                           mph with local canyon gusts to 25 mph by                           the afternoon.      Ridges/upr slopes….Variable 3-6 mph becoming southwest 6-12                           mph by the afternoon.  Marine layer……..1500 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY NIGHT…  Sky/weather………Mostly clear then low clouds and fog with                      patchy drizzle after midnight.  Min temperature…..53-61.  Max humidity……..80-100 percent.  20-foot winds…….      Valleys/lwr slopes…Southwest 6-12 mph.      Ridges/upr slopes….Southwest 6-12 mph in the evening becoming                           downslope 3-6 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .THURSDAY…  Sky/weather………Morning low clouds and fog then partly cloudy.                      Patchy drizzle in the morning.  Max temperature…..72-80 except 69-71 coastal slopes and higher                      peaks.  Min humidity……..45-60 percent except 60-70 percent coastal                      slopes and higher peaks.  20-foot winds…….      Valleys/lwr slopes…Southwest 6-12 mph.      Ridges/upr slopes….Southwest 6-12 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent. SANTA CLARITA VALLEY:.WEDNESDAY…  Sky/weather………Mostly sunny then becoming partly cloudy.  Max temperature…..79-87.     24 hr trend……Down 9.  Min humidity……..30-40 percent.     24 hr trend……Up 5.  20-foot winds…….Variable 3-6 mph becoming south 8-15 mph with                    gusts to 25 mph by the afternoon.  Marine layer……..1500 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY NIGHT…  Sky/weather………Partly cloudy then low clouds and fog with                    patchy drizzle after midnight.  Min temperature…..53-57.  Max humidity……..80-100 percent.  20-foot winds…….Southwest 6-12 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .THURSDAY…  Sky/weather………Morning low clouds and fog then mostly sunny.                      Patchy drizzle in the morning.  Max temperature…..72-80.  Min humidity……..50-65 percent.  20-foot winds…….Southwest 6-12 mph becoming 10-20 mph with                      gusts to 25 mph late in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. ANGELES NATIONAL FOREST (CAZ253):.WEDNESDAY…  Sky/weather………Mostly sunny then becoming partly cloudy.  Max temperature…..76-84 low elevations to 67-74 higher                      elevations.     24 hr trend……Down 7.  Min humidity……..35-50 percent except 20-30 percent higher peaks                      and warmer valleys.     24 hr trend……Little change.  20-foot winds…….      Valleys/lwr slopes…South 10-20 mph with gusts to 25 mph.      Ridges/upr slopes….South 10-20 mph with gusts to 25 mph.  Marine layer……..None.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY NIGHT…  Sky/weather………Partly cloudy except areas of low clouds and                      fog on the coastal slopes after midnight.                      Patchy drizzle after midnight.  Min temperature…..51-56 low elevations to 44-49 colder valleys                      and peaks.  Max humidity……..75-100 percent.  20-foot winds…….      Valleys/lwr slopes…Southwest 10-20 mph with gusts to 25 mph.      Ridges/upr slopes….Southwest 10-20 mph with gusts to 25 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .THURSDAY…  Sky/weather………Mostly sunny except for areas of morning low                      clouds and fog on the coastal slopes. Patchy                      drizzle in the morning.  Max temperature…..72-78 low elevations to 64-70 higher                      elevations.  Min humidity……..50-70 percent except 40-50 percent higher peaks                      and warmer valleys.  20-foot winds…….      Valleys/lwr slopes…Southwest 10-20 mph with gusts to 25 mph.      Ridges/upr slopes….West 10-20 mph with gusts to 25 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent. ANTELOPE VALLEY (CAZ259):.WEDNESDAY…  Sky/weather………Mostly sunny then becoming partly cloudy.  Max temperature…..79-89.     24 hr trend……Down 7.  Min humidity……..15-25 percent.     24 hr trend……Down 5.  20-foot winds…….Southwest 6-12 mph becoming 15-25 mph with                      gusts to 30 mph in the afternoon. Isolated                      gusts to 40 mph near Lake Palmdale.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY NIGHT…  Sky/weather………Partly cloudy then becoming mostly clear.  Min temperature…..51-60.  Max humidity……..75-90 percent.  20-foot winds…….Southwest 15-25 mph with gusts to 30 mph.                      Isolated gusts to 40 mph near Lake Palmdale.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .THURSDAY…  Sky/weather………Mostly sunny.  Max temperature…..76-86.  Min humidity……..30-45 percent.  20-foot winds…….Southwest 15-25 mph with gusts to 30 mph                      becoming 15-25 mph with gusts to 40 mph late in                      the afternoon. Isolated gusts to 50 mph near                      Lake Palmdale.  LAL……………..1.  CWR (>0.10 IN)……0 percent. KERN CO. DESERTS (CAZ298):WEDNESDAY…  Sky/weather………Sunny.  MAX TEMPERATURE…..84-89.     24 HR TREND……Down 2-8 degrees.  MIN HUMIDITY……..18-28 percent.     24 HR TREND……Down 3-5 percent.  20-FOOT WINDS…….Southwest 4-14 mph.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….10300 ft AGL.  TRANSPORT WINDS…..Southwest around 5 mph in the morning                     increasing to south around 15 mph in the                      afternoon.  CHC WETTING RAIN….0 percent.  .WEDNESDAY NIGHT…  Sky/weather………Mostly clear.  MIN TEMPERATURE…..57-62.     24 HR TREND……Down 3-9 degrees.  MAX HUMIDITY……..70-80 percent.     24 HR TREND……Up 9-19 percent.  20-FOOT WINDS…….Southwest 5-17 mph in the early evening                      decreasing to 3-12 mph .  LAL……………..1.  CHC WETTING RAIN….0 percent.  .THURSDAY…  Sky/weather………Sunny.  MAX TEMPERATURE…..82-87.     24 HR TREND……Down 1-3 degrees.  MIN HUMIDITY……..28-38 percent.     24 HR TREND……Up 6-16 percent.  20-FOOT WINDS…….West 4-14 mph.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….9200 ft AGL.  TRANSPORT WINDS…..West 15 to 20 mph.  CHC WETTING RAIN….0 percent. TEHACHAPI:WEDNESDAY…  Sky/weather………Sunny.  Max temperature…..     5000 FEET……..76-81.     24 HR TREND……Down 3-9 degrees.  MIN HUMIDITY……..     5000 FEET……..22-32 percent.     24 HR TREND……Little change.  WIND – 20 FOOT (10 MINUTE AVERAGE)  SLOPES………..Westerly 4-12 mph.     RIDGES………..South 5 mph in the early morning increasing to                      4-12 mph by afternoon.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….10900 ft AGL.  TRANSPORT WINDS…..South 5 to 10 mph.  CHC WETTING RAIN….0 percent.  .WEDNESDAY NIGHT…  Sky/weather………Partly cloudy then becoming mostly cloudy.                      Slight chance of showers after midnight.  Min temperature….     5000 FEET……..49-54.     24 HR TREND……Down 2-8 degrees.  MAX HUMIDITY……..     5000 FEET……..74-84 percent.     24 HR TREND……Up 12-24 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Westerly 4-12 mph.     RIDGES………..West 4-12 mph in the early evening shifting to                      the northwest 3-7 mph.  LAL……………..1.  CHC WETTING RAIN….0 percent.  .THURSDAY…  Sky/weather………Partly sunny then becoming sunny. Slight chance                      of showers in the morning.  Max temperature…..     5000 FEET……..72-77.     24 HR TREND……Down 3-5 degrees.  MIN HUMIDITY……..     5000 FEET……..37-47 percent.     24 HR TREND……Up 7-17 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Westerly 4-14 mph.     RIDGES………..West to northwest 4-11 mph.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….7700 ft AGL.  TRANSPORT WINDS…..West around 10 mph in the morning increasing to                     northwest around 20 mph in the afternoon.  CHC WETTING RAIN….0 percent. ORANGE CO. (ANAHEIM):WEDNESDAY…Mostly cloudy in the morning…becoming mostly  sunny. Patchy fog in the morning. Highs 78 to 83. Light winds.  .WEDNESDAY NIGHT…Partly cloudy in the evening…becoming  cloudy. Patchy drizzle overnight. Lows 58 to 65. Light winds.  .THURSDAY…Cloudy in the morning…becoming mostly cloudy.  Patchy drizzle in the morning. Highs 75 to 80. Light winds  becoming west 15 mph in the afternoon.  .THURSDAY NIGHT…Mostly cloudy. Patchy drizzle overnight. Lows  58 to 66. Areas of winds west 15 mph in the evening becoming  light. SAN DIEGO COAST (SAN DIEGO):WEDNESDAY…Mostly cloudy in the morning…becoming partly  cloudy. Patchy fog in the morning. Highs 70 to 75 near the coast  to 75 inland. Light winds.  .WEDNESDAY NIGHT…Partly cloudy in the evening…becoming  cloudy. Patchy drizzle overnight. Lows 60 to 66. Light winds.  .THURSDAY…Cloudy in the morning…becoming mostly cloudy. Patchy drizzle in the morning. Highs 71 to 76. Light winds  becoming west 15 mph with gusts to 25 mph in the afternoon.  .THURSDAY NIGHT…Mostly cloudy. Patchy drizzle overnight. Lows  61 to 66. Areas of winds west 15 mph in the evening becoming  light.====================================================================THIS DAY IN WEATHER HISTORY:

2011: Thunderstorms produced 0.75 inch hail at Big Bear City and Highland. A funnel cloud was observed near Perris. Hail accumulated near Wrightwood and minor flash flooding covered roads in Pinon Hills.

 

1999: A near-stationary thunderstorm over the Vallecito Mountains dropped over four inches of rain in two hours. Flood waters washed out Split Mountain Road. One of the washouts damaged nearly 200 yards of road.

 

1971: It was 100° in Palomar Mountain, the highest temperature on record. This occurred on eight other occasions.

 

1959: Strong thunderstorms rumbled throughout the mountains and deserts, producing intense winds, hail and heavy rains. Utility lines and highways were damaged and numerous freshly planted fields in the Imperial Valley were flooded. An intense thunderstorm hit east of Joshua Tree City between noon and 1 pm. Heavy debris flows came from the canyons and damaged numerous homes. Sand more than three feet deep covered some properties.

=========================================================================TROPICAL EAST PACIFIC REPORT:

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

 

The National Hurricane Center is issuing advisories on Tropical

Depression Fifteen-E, located several hundred miles southwest

of Cabo San Lucas, Mexico.

 

An elongated area of low pressure located a couple of hundred miles

south of the southern coast of Mexico is producing numerous showers

and thunderstorms. Environmental conditions are expected to

be conducive for development of this system, and a tropical

depression will likely form during the next day or so before it

moves over southwestern Mexico. Regardless of development, locally

heavy rains are expected to spread inland over southwestern

Mexico later this week. These rains could cause life-threatening

flash floods and mudslides.

* Formation chance through 48 hours…high…70 percent.

* Formation chance through 5 days…high…70 percent.

 

A broad area of low pressure located several hundred miles south of

the southern tip of the Baja California peninsula is producing

disorganized showers and thunderstorms. Environmental conditions

are expected to be conducive for development of this system, and a

tropical depression is likely to form by the end of the week while

it moves slowly northward.

* Formation chance through 48 hours…medium…50 percent.

* Formation chance through 5 days…high…80 percent.

 

Another area of low pressure is located more than 1500 miles

west-southwest of the Baja California peninsula. Development, if

any, of this system is expected to be slow to occur while it

meanders during the next several days.

* Formation chance through 48 hours…low…10 percent.

* Formation chance through 5 days…low…20 percent.

 

Tropical Depression Fifteen-E

 

…DEPRESSION NOT INTENSIFYING OVER THE OPEN EASTERN PACIFIC…

 

 

SUMMARY OF 200 PM PDT…2100 UTC…INFORMATION

———————————————-

LOCATION…15.6N 117.5W

ABOUT 705 MI…1135 KM SW OF CABO SAN LUCAS MEXICO

MAXIMUM SUSTAINED WINDS…35 MPH…55 KM/H

PRESENT MOVEMENT…W OR 265 DEGREES AT 14 MPH…22 KM/H

MINIMUM CENTRAL PRESSURE…1004 MB…29.65 INCHES

 

 

WATCHES AND WARNINGS

——————–

There are no coastal watches or warnings in effect.

 

 

DISCUSSION AND 48-HOUR OUTLOOK

——————————

At 200 PM PDT (2100 UTC), the center of Tropical Depression

Fifteen-E was located near latitude 15.6 North, longitude

117.5 West. The depression is moving toward the west near 14 mph

(22 km/h), and the system should continue moving in this general

direction at a slower rate of forward speed during the next two

days.

 

Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.

Some slight strengthening is expected, and the system may become a

tropical storm by Wednesday.

 

The estimated minimum central pressure is 1004 mb (29.65 inches).

 

 

HAZARDS AFFECTING LAND

———————-

None

 

==============================================================================

CURRENT WEATHER @ HESP. @0755hrs TEMP:720 RH:55% WIND: SW 5 G 118.17” RF @ HESP. STA.SINCE JUL 1st/20 Yr Avg: 7.12”  : MONTH:0.04”   YTD S/F: 0.00” /

————————————————————————————–

FIRES: UPDATED

 

National Preparedness Level 5

 

Initial attack activity: Light (168) new fires
New large incidents: 6
Large fires contained: 5
Uncontained large fires:** 39
Area Command Teams Committed: 2
NIMOs committed: 3
Type 1 IMTs committed: 12
Type 2 IMTs committed: 24

 

Southern California Area (PL 3)

New fires: 38
New large incidents: 0
Uncontained large fires: 3
Type 1 IMTs Committed 1
Type 2 IMTs Committed 1

 

Northern California Area (PL 4)

New fires: 66
New large incidents: 0
Uncontained large fires: 3
Type 1 IMTs committed: 1
Type 2 IMTs committed: 5

 

SOUTH OPS INFO

 

Federal Incidents Railroad, Vegetation Fire, Madera County, Update Highway 41, South of Fish Camp Federal DPA, FRA, Sierra NF

  • 12,407 acres brush and timber, 83% contained
  • CA IMT 2 (Mills) in command with tentative transition back to the local unit on Thursday 9/14 @ 0600
  • Minimal fire behavior with smoldering
  • Burning in tree mortality area

Creek, Vegetation Fire, Tuolumne County, Update 6 Miles South East of Cold Springs Federal DPA, FRA, Stanislaus NF

  • 483 acres brush and timber, 5% contained
  • Minimal fire behavior
  • Local roads and trails under soft closure

Summit Complex, Vegetation Fire, Tuolumne County, Update South of Douglas Day Use area, off of Highway 108, near Sonora Pass Federal DPA, FRA, Stanislaus NF

  • 4,653 acres timber, 35% contained
  • Minimal fire behavior
  • Large uncontained fires within the complex
    • Douglas: 311 acres, 0% contained, confine strategy
    • Willow: 10  acres, 0% contained, confine strategy
    • McCormick: 4,332 acres, 0% contained, confine strategy

Unified Command Pier, Vegetation Fire, Tulare County, Update Highway 190, east of Springville Federal/Local/State DPA, FRA/LRA/SRA, Sequoia NF/Tulare County Fire/Tulare Unit

  • 30,390 acres grass and brush, 60% contained
  • CA IMT1 (Minton) in command
  • Unified command with Sequoia NF, Tulare County and CAL FIRE
  • Moderate fire behavior with uphill runs
  • Continued structure threat
  • Mandatory evacuations remain in place for Alpine Village, Doyle Springs, Cedar Slope, Camp Nelson, Rogers Camp, Mountain Aire, Sequoia Crest, Pier Point Springs, and Wishon
  • State Route 190 remains closed
  • Burning in tree mortality area

Mission, Vegetation Fire, Madera County, Final Mission Drive X Rainbow Drive, 2 miles east of North Fork State/Federal DPA, SRA/FRA, Madera-Mariposa-Merced Unit / Sierra NF

  • 1,035 acres grass and brush, 98% contained
  • CAL FIRE IMT (Lawson) transferred command back to the local unit today
  • Unified Command with Sierra NF and CAL FIRE Madera-Mariposa-Merced Unit
  • Minimal fire behavior

 

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