SBD FIRE WEATHER AND INFO 9/22/17

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: 9/22/17
SKYWARN: NORMAL

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

DAYS NO R.F. @ STA.: 11

 

National Preparedness Level 4 

Southern California Area

Preparedness Level: (PL 3) 

Northern California Area

Preparedness Level (PL 3) SYNOP:

***Gusty offshore winds across Southern California starting Sunday***

***Much warmer and drier conditions beginning Sunday***

An area of low pressure over the Great Basin will maintain well below normal temperatures and humid conditions across the region through Saturday. Maximum temperatures will be in the upper 40s and 50s across the mountains and mid 60s to mid 70s in the valleys today, with mid 50s to mid 60s across the mountains and upper 60s and 70s in the valleys Saturday. Minimum humidity will be above 20% through Saturday, except there will be some teens in the deserts. Scattered showers with light accumulations will occur over the Sierra through this evening. The snow level will be around 8,000 feet. A ridge of high pressure will build into the West Coast from the Pacific Ocean bringing significant warming and drying Sunday. Warmer valley locations across Southern California will approach 90 degrees and minimum humidity will drop into the teens across most of the region. Slow warming along with continued low humidity will occur Monday through the end of next week. Northeast to east winds of 15 to 25 mph with gusts to 40 mph will surface across the mountains and below the canyons and passes of Southern California Sunday morning through the end of next week.

  FLASH FLOOD POTENTIAL INDEX FOR EXTREME SOUTHWESTERN CALIFORNIA

A few showers will continue through this evening, with greatest concentration in the San Bernardino County Mountains. No heavy rain, thunderstorms or flash flooding is expected. Dry weather will return by Friday and continue this weekend

         FRI             SAT

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)

Strong low pressure will bring unseasonably cool  temperatures this weekend and the first part of next week. There  will be chances for rain and high elevation snow over the Sierra and  southern Great Basin today, then mainly over Lincoln County Saturday  with dry weather likely areawide from Sunday through much of next  week.

 

SPECIAL NOTES: N/A

 

DAILY FUELS/FIRE POTENTIAL:

The potential for large fire will remain low across the region through Saturday due to cool and humid conditions. Warm and dry conditions will cause the large fire threat to increase next week. The dead fuel moisture will lower quickly next week as the warm and dry conditions commence. There will be an elevated threat for large fire across Southern California Sunday through the end of next week as gusty off shore winds surface. The best chance for large fire activity will be across Ventura and Los Angeles Counties Tuesday, when winds are expected to be the strongest. Rapid rates of spread and long range spotting will be likely across Southern California next week if a new ignition were to occur in a windy area. Expect light initial attack activity across the region through Saturday and then moderate IA activity Sunday through the end of next week.

 

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

Zone 1: LA-Ventura                              MARGINAL 9/26/17

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

FRIDAY…

Sky/weather………Mostly sunny.

Max temperature…..69 to 74.

24 HR TREND……Down 1 degree.

Min humidity……..15 to 20 percent.

24 HR TREND……Down 5 percent.

WIND (20 FT)……..Winds west 6 to 11 mph with gusts to 25 mph.

LAL……………..1.

.FRIDAY NIGHT…

Sky/weather………Partly cloudy.

Min temperature…..42 to 51.

24 HR TREND……Up 1 degree.

Max humidity……..60 to 70 percent.

24 HR TREND……Down 15 percent.

WIND (20 FT)……..Winds west 6 to 12 mph with gusts to 25 mph.

LAL……………..1.

.SATURDAY…

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

Max temperature…..71 to 76.

24 HR TREND……Up 3 degrees.

Min humidity……..15 to 20 percent.

24 HR TREND……Little change.

WIND (20 FT)……..Winds west 7 to 17 mph with gusts to 35 mph

becoming north 7 to 11 mph with gusts to 20 mph

in the afternoon.

LAL……………..1.

 WRIGHTWOOD:

Friday

Sunny, with a high near 55. West wind around 5 mph becoming north in the afternoon.

Friday Night

Partly cloudy, with a low around 38. Calm wind becoming northwest around 5 mph after midnight.

Saturday

Mostly sunny, with a high near 58. North wind 5 to 15 mph, with gusts as high as 20 mph.

Saturday Night

Mostly clear, with a low around 41. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

 PHELAN:

Friday

Sunny, with a high near 65. Southwest wind around 5 mph becoming calm in the afternoon.

Friday Night

Partly cloudy, with a low around 45. Calm wind becoming west around 5 mph after midnight.

Saturday

Mostly sunny, with a high near 68. West wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

Saturday Night

Mostly clear, with a low around 46. West wind 10 to 15 mph, with gusts as high as 20 mph.

 TRONA:

Friday

Sunny, with a high near 80. Light and variable wind.

Friday Night

Mostly clear, with a low around 52. Light and variable wind becoming north around 6 mph in the evening.

Saturday

Sunny, with a high near 83. North wind 7 to 17 mph, with gusts as high as 24 mph.

Saturday Night

Clear, with a low around 52. North northwest wind 5 to 10 mph.

 

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

.FRIDAY…

* Sky/Weather………Sunny.

* Max temperature:

*     Valley floor….79-84.

*     24 hr trend…..On average down 7 degrees.

* Min humidity:

*     Valley floor….10-15 percent.

*     24 hr trend…..On average down 7 percent.

* Wind (Slope/valley=20 ft, 10 min avg):

*     Valley floor….Northwest wind up to 10 mph in the morning

becoming upslope/upvalley 4 to 8 mph.

*     10000 ft msl….West 20 to 30 mph decreasing to 10 to 15 mph in

the afternoon.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

 

.FRIDAY NIGHT…

* Sky/Weather………Mostly clear.

* Min temperature:

*     Valley floor….46-51.

*     24 hr trend…..On average up 3 degrees.

* Max humidity:

*     Valley floor….38-43 percent.

*     24 hr trend…..On average down 10 percent.

* Wind (Slope/valley=20 ft, 10 min avg):

*     Valley floor….Downslope/downvalley 2 to 5 mph becoming

northwest up to 10 mph after midnight.

*   10000 ft msl….Southwest up to 10 mph in the evening becoming

light and variable.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

 

.SATURDAY…

* Sky/Weather………Sunny.

* Max temperature:

*   Valley floor….81-86.

*     24 hr trend…..On average up 2 degrees.

* Min humidity:

*     Valley floor….9-14 percent.

*     24 hr trend…..Little change.

* Wind (Slope/valley=20 ft, 10 min avg):

*     Valley floor….North wind 10 to 15 mph.

*     10000 ft msl….Northwest up to 10 mph increasing to 10 to 15 mph

in the afternoon.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..3.

 

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS:

.FRIDAY…  * Sky/Weather………Partly cloudy. Isolated showers in the    afternoon.  * Max temperature:  *     Valley floor….68-73.  *     7000 feet…….54-59.  *     24 hr trend…..On average up 2 degrees.  * Min humidity:  *     Valley floor….12-17 percent.  *     7000 feet…….22-32 percent.  *     24 hr trend…..On average down 5 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….North winds up to 10 mph in the morning becoming        upslope/upvalley 4 to 8 mph.  *     Upper slopes….Upslope/upvalley 4 to 8 mph.  *     10000 ft msl….Northwest around 10 mph in the morning becoming        light and variable.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..3.  .FRIDAY NIGHT…  * Sky/Weather………Partly cloudy with scattered showers in the    evening.  * Min temperature:  *     Valley floor….31-41.  *     7000 feet…….11-16.  *     24 hr trend…..Little change.  * Max humidity:  *     Valley floor….48-53 percent.  *     7000 feet…….77-82 percent.  *     24 hr trend…..On average down 2 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Downslope/downvalley 2 to 5 mph becoming        northwest around 10 mph after midnight.  *    Upper slopes….North winds up to 10 mph.  *     10000 ft msl….Northeast 10 to 15 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..3.  .SATURDAY…  * Sky/Weather………Sunny.  * Max temperature:  *    Valley floor….72-77.  *     7000 feet…….56-61.  *     24 hr trend…..On average up 2 degrees.  * Min humidity:  *     Valley floor….12-17 percent.  *     7000 feet…….22-32 percent.  *     24 hr trend…..Little change.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….North winds 10 to 15 mph.  *     Upper slopes….North winds 10 to 15 mph.  *     10000 ft msl….North 15 to 20 mph becoming 10 to 20 mph in the        afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..3.

 

INLAND EMPIRE (CAZ248):

FRIDAY…

Sky/weather………Partly cloudy.

Max temperature…..67 to 76.

24 HR TREND……Up 2 degrees.

Min humidity……..35 to 45 percent.

24 HR TREND……Down 15 percent.

WIND (20 FT)……..Variable 3 to 6 mph becoming southwest 6 to 11

mph with gusts to 25 mph in the afternoon.

LAL……………..1.

.FRIDAY NIGHT…

Sky/weather………Partly cloudy.

Min temperature…..46 to 55.

24 HR TREND……Down 2 degrees.

Max humidity……..80 to 90 percent.

24 HR TREND……Little change.

WIND (20 FT)……..Winds southwest 6 to 11 mph with gusts to 25

mph in the evening becoming variable 3 to 6

mph.

LAL……………..1.

.SATURDAY…

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

Max temperature…..70 to 78.

24 HR TREND……Up 3 degrees.

Min humidity……..30 to 40 percent.

24 HR TREND……Little change.

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

12 mph with gusts to 25 mph in the afternoon.

LAL……………..1.

 

DEVORE:

Friday

Mostly sunny, with a high near 70. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

Friday Night

Partly cloudy, with a low around 50. Southwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.

Saturday

Mostly sunny, with a high near 73. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Saturday Night

Mostly clear, with a low around 53. Southwest wind 10 to 15 mph becoming light and variable. Winds could gust as high as 25 mph.

 

CHINO HILLS:

Friday

Mostly sunny, with a high near 73. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

Friday Night

Partly cloudy, with a low around 55. South wind 5 to 15 mph, with gusts as high as 20 mph.

Saturday

Mostly sunny, with a high near 75. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

Saturday Night

Mostly clear, with a low around 56. Southwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 25 mph.

 

COLTON:

Friday

Mostly sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.

Friday Night

Mostly cloudy, with a low around 57. West wind 10 to 15 mph becoming light and variable. Winds could gust as high as 20 mph.

Saturday

Mostly sunny, with a high near 78. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

Saturday Night

Mostly clear, with a low around 58. West wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

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

FRIDAY…

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

Max temperature…..48 to 58 above 6000 feet to 55 to 65 below 6000

feet.

24 HR TREND……Down 2 degrees.

Min humidity……..20 to 30 percent on desert slopes to 35 to 45

percent on coastal slopes.

24 HR TREND……Down 20 percent.

WIND (20 FT)……..

SLOPES………..Winds west 6 to 12 mph with gusts to 25 mph.

RIDGETOP………Winds west 6 to 11 mph. Gusts to 25 mph in the

morning.

LAL……………..1.

.FRIDAY NIGHT…

Sky/weather………Partly cloudy.

Min temperature…..25 to 35 above 6000 feet to 33 to 43 below 6000

feet.

24 HR TREND……Little change.

Max humidity……..55 to 65 percent on desert slopes to 85 to 95

percent on coastal slopes.

24 HR TREND……Little change.

WIND (20 FT)……..

SLOPES………..Winds northwest 6 to 12 mph with gusts to 25

mph.

RIDGETOP………Winds west around 6 mph in the evening becoming

variable 2 to 4 mph.

LAL……………..1.

.SATURDAY…

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

Max temperature…..50 to 60 above 6000 feet to 58 to 67 below 6000

feet.

24 HR TREND……Up 8 degrees.

Min humidity……..20 to 25 percent on desert slopes to 30 to 40

percent on coastal slopes.

24 HR TREND……Down 5 percent.

WIND (20 FT)……..

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

RIDGETOP………Winds northwest 6 to 11 mph with gusts to 25

mph.

LAL……………..1.

 

BANNING PASS:

FRIDAY…

Sky/weather………Mostly sunny.

Max temperature…..80 to 85.

24 HR TREND……Little change.

Min humidity……..20 to 25 percent.

24 HR TREND……Down 10 percent.

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

LAL……………..1.

.FRIDAY NIGHT…

Sky/weather………Mostly clear.

Min temperature…..54 to 63.

24 HR TREND……Up 2 degrees.

Max humidity……..45 to 55 percent.

24 HR TREND……Down 5 percent.

WIND (20 FT)……..Winds west 9 to 19 mph with gusts to 35 mph.

LAL……………..1.

.SATURDAY…

Sky/weather………Mostly sunny.

Max temperature…..83 to 88.

24 HR TREND……Up 1 degree.

Min humidity……..15 to 20 percent.

24 HR TREND……Down 5 percent.

WIND (20 FT)……..Winds northwest 6 to 16 mph with gusts to 35

mph.

LAL……………..1.

JOSHUA TREE AREA (CAZ261):

.FRIDAY…  * Sky/weather…………………Mostly sunny.  * Max Temperature……………..66-80.  *    24 hr trend………………Little change.  * Min Humidity………………..15-25 pct.  *    24 hr trend………………15 pct drier.  * 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………4 or low potential for large    plume dominated fire growth.  .FRIDAY NIGHT…  * Sky/weather…………………Mostly clear.  * Min Temperature……………..48-55.  *    24 hr trend………………Little change.  * Max Humidity………………..43-54 pct.  *    24 hr trend………………6 pct drier.  * Winds – 20 foot…Slope/Valley..Northwest 5 to 15 mph.  * Winds…10000 FT MSL…………Southwest 5 to 15 mph.  * Chance of Precip…………….0 percent.  * CWR (>= 0.10 IN)…………….0 percent.  * LAL………………………..1.  .SATURDAY…  * Sky/weather…………………Mostly sunny.  * Max Temperature……………..67-80.  *    24 hr trend………………Little change.  * Min Humidity………………..13-20 pct.  *    24 hr trend………………3 pct drier.  * Winds – 20 foot…Slope/Valley..Northwest 5 to 15 mph.  * Winds…10000 FT MSL…………Light and variable in the morning    becoming northwest 5 to 15 mph in the afternoon.  * Chance of Precip…………….0 percent.  * CWR (>= 0.10 IN)…………….0 percent.  * LAL………………………..1.  * Haines High Level Index………2 or very low potential for large    plume dominated fire growth.

 

NEEDLES, RIVER BAT. (CAZ229):

FRIDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     Valley floor….82-87.  *     24 hr trend…..On average down 7 degrees.  * Min humidity:  *     Valley floor….7-13 percent.  *     24 hr trend…..On average down 6 percent.  * Wind (Slope/valley=20 ft, 10 min avg):  *     Valley floor….Upslope/upvalley 4 to 8 mph.  *     10000 ft msl….Southwest 20 to 30 mph decreasing to 10 to 20 mph        in the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..4.  * Mixing height…….9700 ft agl.  * Transport winds…..Light winds.  * Ventilation………Good.  .FRIDAY NIGHT…  * Sky/Weather………Mostly clear.  * Min temperature:  *     Valley floor….52-57.  *     24 hr trend…..Little change.  * Max humidity:  *     Valley floor….33-38 percent.  *     24 hr trend…..On average down 11 percent.  * Wind (Slope/valley=20 ft, 10 min avg):  *     Valley floor….Downslope/downvalley 2 to 5 mph.  *     10000 ft msl….South 10 to 15 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..4.  .SATURDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     Valley floor….84-89.  *     24 hr trend…..On average up 2 degrees.  * Min humidity:  *     Valley floor….9-14 percent.  *     24 hr trend…..Little change.  * Wind (Slope/valley=20 ft, 10 min avg):  *     Valley floor….Northwest wind up to 10 mph.  *     10000 ft msl….Light and variable becoming southwest around 10        mph in the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..3.  * Mixing height…….12800 ft agl.  * Transport winds…..Light winds becoming northwest around 10    knots in the afternoon.  * Ventilation………Very good.

 

LAS VEGAS CLARK COUNTY BORDER:

FRIDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     4000 feet…….74-79.  *     24 hr trend…..On average down 8 degrees.  * Min humidity:  *     4000 feet…….12-17 percent.  *     24 hr trend…..On average down 2 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Northwest winds up to 10 mph in the morning        becoming upslope/upvalley 4 to 8 mph.  *     10000 ft msl….West 10 to 15 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..4.  * Mixing height…….9600 ft agl.  * Transport winds…..Light winds.  * Ventilation………Good.  .FRIDAY NIGHT…  * Sky/Weather………Mostly clear.  * Min temperature:  *     4000 feet…….47-52.  *     24 hr trend…..On average up 2 degrees.  * Max humidity:  *     4000 feet…….38-43 percent.  *     24 hr trend…..On average down 10 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Downslope/downvalley 2 to 5 mph becoming        northwest up to 10 mph after midnight.  *     10000 ft msl….Southeast up to 10 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..3.  .SATURDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     4000 feet…….74-79.  *     24 hr trend…..Little change.  * Min humidity:  *     4000 feet…….12-17 percent.  *     24 hr trend…..Little change.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….North winds up to 10 mph.  *     10000 ft msl….Light and variable becoming southwest around 10      mph in the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..3.  * Mixing height…….10700 ft agl.  * Transport winds…..Light winds becoming northwest around 10    knots in the afternoon.  * Ventilation………Very good.

 

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

LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ247/CAZ249):                                                   ANDLOS ANGELES COUNTY SAN FERNANDO VALLEY:.FRIDAY…  Sky/weather………Partly cloudy.  Max temperature…..70-80.     24 hr trend……Up 4.  Min humidity……..30-40 percent.     24 hr trend……Down 14.  20-foot winds…….South 6-12 mph.  Marine layer……..5000 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .FRIDAY NIGHT…  Sky/weather………Partly cloudy.  Min temperature…..51-61.  Max humidity……..75-100 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.  .SATURDAY…  Sky/weather………Partly cloudy then becoming mostly sunny.  Max temperature…..72-82.  Min humidity……..25-40 percent.  20-foot winds…….Northwest increasing to 6-12 mph then becoming                      southwest late in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent.

SANTA MONICA MOUNTAINS RECREATIONAL AREA:.FRIDAY…  Sky/weather………Partly cloudy then becoming mostly sunny.  Max temperature…..71-77.     24 hr trend……Little change.  Min humidity……..30-50 percent.     24 hr trend……Down 6.  20-foot winds…….      Valleys/lwr slopes…Northeast 6-12 mph becoming southwest 8-15                           mph with local canyon gusts to 30 mph in                           the afternoon.      Ridges/upr slopes….Northeast 6-12 mph becoming southwest 8-15                           mph in the afternoon.  Marine layer……..5000 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .FRIDAY NIGHT…  Sky/weather………Mostly clear then becoming partly cloudy.  Min temperature…..49-57.  Max humidity……..75-100 percent.  20-foot winds…….      Valleys/lwr slopes…Southwest 8-15 mph with local canyon gusts                           to 25 mph early in the evening becoming                           northeast 6-12 mph late.      Ridges/upr slopes….Southwest 8-15 mph in the evening becoming                           northeast 6-12 mph late. Isolated gusts to                           30 mph western peaks.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SATURDAY…  Sky/weather………Partly cloudy then becoming mostly sunny.  Max temperature…..72-80 except 69-71 coastal slopes and higher                      peaks.  Min humidity……..30-45 percent except 45-55 percent coastal                      slopes and higher peaks.  20-foot winds…….      Valleys/lwr slopes…Northeast 8-15 mph with gusts to 20 mph                           becoming west in the afternoon.      Ridges/upr slopes….Northeast increasing to 8-15 mph with                           gusts to 25 mph then becoming west late in                           the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent.SANTA CLARITA VALLEY:.FRIDAY…  Sky/weather………Mostly sunny.  Max temperature…..71-77.     24 hr trend……Up 4.  Min humidity……..25-35 percent.     24 hr trend……Down 17.  20-foot winds…….North 6-12 mph becoming southwest 8-15 mph with                      gusts to 20 mph in the afternoon.  Marine layer……..5000 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .FRIDAY NIGHT…  Sky/weather………Mostly clear.  Min temperature…..48-52.  Max humidity……..65-80 percent.  20-foot winds…….Southwest 6-12 with gusts to 20 mph early                      becoming variable 3-6 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SATURDAY…  Sky/weather………Mostly sunny.  Max temperature…..73-80.  Min humidity……..18-28 percent.  20-foot winds…….Northwest 6-12 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent. ANGELES NATIONAL FOREST (CAZ253):.FRIDAY…  Sky/weather………Partly cloudy.  Max temperature…..52-59 except 65-75 lower interior slopes.     24 hr trend……Up 4.  Min humidity……..35-50 percent except 25-35 percent higher peaks                     and warmer valleys.     24 hr trend……Down 21.  20-foot winds…….      Valleys/lwr slopes…North 10-20 mph with gusts to 30 mph                           becoming west in the afternoon.                           Strongest through the I-5 Corridor.      Ridges/upr slopes….North 10-20 mph with gusts to 25 mph                           becoming west in the afternoon.  Marine layer……..5000 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .FRIDAY NIGHT…  Sky/weather………Partly cloudy then becoming mostly clear.  Min temperature…..43-53 low elevations to 33-40 colder valleys                      and peaks.  Max humidity……..60-75 percent except 80-100 percent colder                      valleys.  20-foot winds…….      Valleys/lwr slopes…Southwest 10-20 mph with gusts to 25 mph                           in the evening becoming northwest 6-12                           mph. Strongest through the I-5 Corridor.      Ridges/upr slopes….West 6-12 mph in the evening becoming                           north late.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SATURDAY…  Sky/weather………Mostly sunny.  Max temperature…..68-78 low elevations to 56-63 higher                     elevations.  Min humidity……..20-35 percent.  20-foot winds…….      Valleys/lwr slopes…Northwest increasing to 8-15 mph with gusts                           to 25 mph.      Ridges/upr slopes….North 8-15 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent. ANTELOPE VALLEY (CAZ259):FRIDAY…  Sky/weather………Mostly sunny.  Max temperature…..66-74.     24 hr trend……Little change.  Min humidity……..20-30 percent.     24 hr trend……Down 13.  20-foot winds…….North 6-12 mph becoming west 8-15 mph with gusts                      to 30 mph in the afternoon. Strongest west valley.  Marine layer……..5000 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .FRIDAY NIGHT…  Sky/weather………Mostly clear.  Min temperature…..41-49.  Max humidity……..60-90 percent.  20-foot winds…….West 8-15 mph with gusts to 25 mph in the                      evening becoming 6-12 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SATURDAY…  Sky/weather………Mostly sunny.  Max temperature…..68-77.  Min humidity……..15-25 percent.  20-foot winds…….North to northwest increasing to 8-15 mph with local                      gusts to 30 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent. KERN CO. DESERTS (CAZ298):.FRIDAY…  Sky/weather………Sunny.  MAX TEMPERATURE…..68-73.     24 HR TREND……Up 2-8 degrees.  MIN HUMIDITY……..20-30 percent.     24 HR TREND……Down 6-16 percent.  20-FOOT WINDS…….West 6 mph.  LAL……………..1.  VENTILATION………Very good.  Mixing height…….10200 ft AGL.  TRANSPORT WINDS…..West around 5 mph.  CHC WETTING RAIN….0 percent.  .FRIDAY NIGHT…  Sky/weather………Mostly clear.  MIN TEMPERATURE…..47-52.     24 HR TREND……Up 2-4 degrees.  MAX HUMIDITY……..54-64 percent.     24 HR TREND……Down 5-11 percent.  20-FOOT WINDS…….West 3-12 mph in the early evening shifting to                      the northwest 10 mph.  LAL……………..1.  CHC WETTING RAIN….0 percent.  .SATURDAY…  Sky/weather………Sunny.  MAX TEMPERATURE…..71-76.     24 HR TREND……Up 2-4 degrees.  MIN HUMIDITY……..16-26 percent.     24 HR TREND……Down 1-3 percent.  20-FOOT WINDS…….North 3-8 mph.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….11700 ft AGL.  TRANSPORT WINDS…..Northwest around 10 mph.  CHC WETTING RAIN….0 percent. TEHACHAPI:.FRIDAY…  Sky/weather………Sunny.  Max temperature…..     5000 FEET……..60-65.     24 HR TREND……Up 2-8 degrees.  MIN HUMIDITY……..     5000 FEET……..25-35 percent.     24 HR TREND……Down 9-19 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Upslope/upvalley 10 mph.     RIDGES………..Northwest 8 mph in the early morning shifting                      to the west by afternoon.  LAL……………..1.  VENTILATION………Good.  Mixing height…….9500 ft AGL.  TRANSPORT WINDS…..Northwest 5 to 10 mph.  CHC WETTING RAIN….0 percent.  .FRIDAY NIGHT…  Sky/weather………Mostly clear.  Min temperature….     5000 FEET……..39-44.     24 HR TREND……Up 2-4 degrees.  MAX HUMIDITY……..     5000 FEET……..61-71 percent.     24 HR TREND……Down 4-10 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Upslope/upvalley 3-11 mph in the early evening                      decreasing to west 3-8 mph.     RIDGES………..Northwest 3-10 mph in the early evening                      decreasing to 7 mph.  LAL……………..1.  CHC WETTING RAIN….0 percent.  .SATURDAY…  Sky/weather………Sunny.  Max temperature…..     5000 FEET……..63-68.     24 HR TREND……Up 2-4 degrees.  MIN HUMIDITY……..     5000 FEET……..22-32 percent.     24 HR TREND……Down 2-8 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)    SLOPES………..Upslope/upvalley 3-8 mph.     RIDGES………..Northwest 3-7 mph.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….10600 ft AGL.  TRANSPORT WINDS…..Northwest 5 to 10 mph.  CHC WETTING RAIN….0 percent. ORANGE CO. (ANAHEIM):FRIDAY…Partly cloudy. Highs 72 to 77. Light winds.  .FRIDAY NIGHT…Partly cloudy. Lows 53 to 61. Light winds.  .SATURDAY…Mostly cloudy in the morning…becoming partly  cloudy. Highs 73 to 78. Light winds becoming southwest 15 mph in  the afternoon.  .SATURDAY NIGHT…Mostly clear. Lows 55 to 61. Light winds. SAN DIEGO COAST (SAN DIEGO):.FRIDAY…Mostly cloudy in the morning…becoming partly cloudy.  Highs around 72. Areas of winds southeast 15 mph in the morning  becoming light.  .FRIDAY NIGHT…Partly cloudy in the evening…becoming mostly  cloudy. Lows 55 to 62. Light winds.  .SATURDAY…Mostly cloudy in the morning…becoming partly  cloudy. Highs around 73. Light winds.  .SATURDAY NIGHT…Mostly clear. Lows 54 to 62. Light winds.====================================================================THIS DAY IN WEATHER HISTORY:

2007: As many as eight waterspouts and countless more funnel clouds were seen in one hour along the coast of Orange and San Diego Counties. Two waterspouts came ashore. One at Cardiff blew over tents. Another came ashore at Newport Beach.

 

1987: Thunderstorms developed on this day and on 9/23 from San Diego to El Cajon from the remnants of Hurricane Norma. Rainfall was 0.55 inch in two hours at Lemon Grove and 0.97 inch total. 0.70 inch fell at Lindbergh Field, a record for the date. Very frequent lightning caused numerous power outages and property damage, and ignited small fires.

 

1939: A heat wave that started on 9/18 and ended on this day preceded the arrival of a tropical storm called “El Cordonazo.” High temperature records of more than 95° occurred at San Diego each day, with the highest temperature reaching 106° on 9/21. It was 111° in Santa Ana on this day, the highest temperature on record for September, and the second highest temperature on record. This also occurred the previous day on 9/21. Incredibly, 0.02 inch of rain fell on this second hottest day in history. On this day the low temperature in LA was 84°, the highest minimum on record (also occurred on 9/30/1906).

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

Tropical Weather Outlook

 

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

 

An area of disturbed weather is located near the southwestern

coast of Mexico. Although shower and thunderstorm activity is

showing some signs of organization, the system currently lacks a

closed surface circulation. Environmental conditions are expected

to be favorable for gradual development, and a tropical depression

is likely to form near the southwest coast of Mexico during the next

couple of days as the system drifts west-northwestward. Regardless

of tropical cyclone formation, heavy rains are expected over

portions of southwestern Mexico during the next several days.

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

* Formation chance through 5 days…high…90 percent.

 

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

CURRENT WEATHER @ HESP. @0717hrs TEMP:450 RH:90% WIND: W 2 G 68.17” RF @ HESP. STA.SINCE JUL 1st/20 Yr Avg: 7.12”  : MONTH:0.04”   YTD S/F: 0.00” /

————————————————————————————–

FIRES: UPDATED

 

National Preparedness Level 4

 

Initial attack activity: Light (84) new fires
New large incidents: 2
Large fires contained: 2
Uncontained large fires:** 23
NIMOs committed: 2
Type 1 IMTs committed: 5
Type 2 IMTs committed: 18

 

 

Active Incident Resource Summary
GACC Fires Cumulative Acres Crews Engines Helicopters Total Personnel
AICC 0 0 0 0 0 0
NWCC 24 757,520 136 184 25 5,657
ONCC 8 226,509.2 84 116 30 3,311
OSCC 5 57,024 14 13 1 544
NRCC 36 699,548 32 111 12 1,928
GBCC 10 163,326 2 4 3 93
SWCC 7 4,483 8 12 5 301
RMCC 6 8,053.1 6 31 0 201
EACC 0 0 0 0 0 0
SACC 5 3,175 0 2 0 11
Total 101 1,919,638 282 473 76 12,046

 

Southern California Area (PL 3)

New fires: 17
New large incidents: 0
Uncontained large fires: 1

 

SOUTH OPS INFO

Federal Incidents Pier, Vegetation Fire, Tulare County, Update Highway 190, east of Springville Federal DPA, FRA, Sequoia NF

  • 36,556 acres grass and brush, 95% contained
  • Minimal fire behavior
  • Demobilizing excess resources
  • Burning in tree mortality area

Empire, Vegetation Fire, Mariposa County, Update 1 mile South of Bridalveil Creek Campground Federal DPA, FRA, Yosemite NP

  • 6,340 acres, timber, brush and slash, 55% contained
  • Minimal fire behavior
  • Local trails closed
  • Area closure in effect for Bridalveil Creek Campground
  • Managing for both protection and resource objectives
  • Incident will only report one 209 every Thursday by 1800

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

  • 1,292 acres brush and timber, 25% contained
  • Minimal fire behavior

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

  • 4,860 acres timber, 50% contained
  • Minimal fire behavior
  • Incident will only report one 209 every Thursday by 1800
  • Large uncontained fires within the complex
    • Douglas: 311 acres, 10% contained, confine strategy
    • Willow: 10  acres, 0% contained, confine strategy
    • McCormick: 4,332 acres, 25% contained, confine strategy
    • Bummers: 120 acres

State Incidents Huasna, Vegetation Fire, San Luis Obispo County, Update Huasna Rd east of Arroyo Grande State DPA, SRA, San Luis Obispo Unit

  • 245 acres grass and brush, 45% contained
  • Federal air and ground resources assigned

Northern California Area (PL 3)

New fires: 17
New large incidents: 0
Uncontained large fires: 4
Type 2 IMTs committed: 4

 

NORTH OPS INFO

Date Time News and Notes
09/21/2017 1900 CA-SHU Berry Fire 942 acres 62% contained. Crews continue to mop up and secure the western flank of the fire. Rolling materials continue to challenge containment lines.
09/21/2017 1900 CA-SRF Orleans Complex, 27,276 acres timber and brush, 66% contained. There was no growth since last report. Threat to private land in the Highway 96 corridor, cultural sites for the Karuk Tribe, spotted owl, bald eagle and salmon habitat.
09/21/2017 1900 CA-KNF Salmon August Complex, 65,875 acres timber, 65% contained. There was no fire growth since last report with minimal interior fire activity. Crews continue to improve containment lines and suppression repair.
09/21/2017 1900 CA-SHF Helena fire, 21,921 acres grass, brush, and timber 75% contained. Fire behavior remained minimal. Suppression repair has begun in all divisions. Threats to Weaverville and Junction City have been mitigated. There is a threat to the community of Grasshopper Flat.
09/21/2017 1900 CA-SHF Buck Fire: 3,400 acres, 31% contained. Heavy fuels continue to be the main source of fire growth. Today, crews focused on containment lines closer to the fire perimeter. Crews were unable to staff Division Z due to weather. Weather also kept crews from checking the status of Black Rock Lookout.
09/21/2017 1900 CA-KNF-006098 Complex, 100,065 acres timber, 48% contained. Fire behavior remains minimal as burning snags still pose a threat to containment lines. Crews continue to improve containment lines and suppression repair.
09/21/2017 0840 CA-AEU French Fire 100 acres grass, brush, 100% contained.
09/21/2017 0840 CA-SHU Berry Fire 928 acres 60% contained. Crews are constructing handline in Blackberry Creek. Threats remain to PG&E power lines and the Pit River Power House Dam.

 

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