SBD FIRE WEATHER AND INFO 9/24/17

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: 9/24/17
SKYWARN: NORMAL

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

DAYS NO R.F. @ STA.: 13

 

National Preparedness Level 3 

Southern California Area

Preparedness Level: (PL 3) 

Northern California Area

Preparedness Level (PL 3) SYNOP:

***Gusty offshore winds across Southern California Monday through Wednesday***

High pressure approaching the West Coast from the Pacific will bring a warming trend along with minimum humidity in the teens to the region through next weekend. Maximum temperatures will warm to near or a little below normal today, with 60s to low 70s across the mountains and upper 70s and 80s in the valleys. Temperatures will approach 100 degrees across the valleys of Southern California by next weekend. North to east morning 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 Monday through Wednesday. Otherwise, light offshore flow will occur across the region through next weekend.

 FLASH FLOOD POTENTIAL INDEX FOR EXTREME SOUTHWESTERN CALIFORNIA

No rain is expected through September 30th.

 

                                                       SUN     MON

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)Cool fall weather will continue today with gradually  warming temperatures through the upcoming week. Occasional north  breezes can be expected, especially down the Colorado River Valley.

 

SPECIAL NOTES:

Weather Summary

An offshore flow pattern will develop Sunday, and then strengthen through the middle of the week. Main concerns are with an extended period of near-critical fire weather conditions along with very warm temperatures for areas away from the immediate coast. The hottest weather will occur in the inland valleys where temperatures will soar into the 90s and may reach near 100 in the hottest locations. These temperatures will be a bit of a shock for residents spoiled by the recent cool weather pattern. There will also be periods of gusty offshore winds and hot weather, but not likely to meet those critical wind or heat thresholds.

 

Weather Threats and Impacts:

  • Near-critical fire weather conditions for much of the work week
  • Gusty offshore winds at times may make for hazardous travel in the wind prone passes
  • Well above normal temperatures will be a concern for at-risk populations for health impacts

Forecast Winds:

  • Gusty Northeast offshore winds expected along the coastal foothills and below passes and canyons of San Bernardino, Riverside, and Orange Counties
  • Mainly Monday through Wednesday
  • Occasional gusts up to 40 mph

Forecast Relative Humidity:

Afternoon humidities bottoming out between 10-20 percent in Inland Valleys and Mountains.

 

Timing:

Offshore flow pattern develops Sunday, and becomes stronger Monday through Wednesday. Pattern doesn’t really reach strong offshore levels, but the extended nature will be noteworthy as it will likely last through the end of the work week.

 

DAILY FUELS/FIRE POTENTIAL:

The potential for large fire will increase across the region through next weekend due to warming and very low humidity. The extended period of warm and dry conditions will cause dead fuels to dry out rapidly. Gusty offshore winds will bring an elevated risk for large fire to Southern California Monday through Wednesday. Rapid rates of spread and long range spotting will be likely if an ignition were to occur in a windy area. Expect initial attack activity to increase as the week wears on.

 

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

 

ZONE 1: L.A. – VENTURA; SEPT 25/26 MARGINAL

 

ZONE 2: ORANGE-INLAND EMPIRE: NO RATE

 

ZONE 3: SAN DIEGO: NO RATE

 

ZONE 4: SANTA BARBARA: NO RATE

 

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

.SUNDAY…Sky/weather………Sunny.

Max temperature…..72 to 77.

24 HR TREND……Up 3 degrees.

Min humidity……..10 to 15 percent.

24 HR TREND……Little change.

WIND (20 FT)……..Winds northeast 6 to 10 mph with gusts to 20

mph.

LAL……………..1.

.SUNDAY NIGHT…Sky/weather………Clear.

Min temperature…..45 to 52.

24 HR TREND……Up 3 degrees.

Max humidity……..25 to 35 percent.

24 HR TREND……Little change.

WIND (20 FT)……..Winds northeast 6 to 8 mph becoming west after

midnight.

LAL……………..1.

.MONDAY…Sky/weather………Mostly sunny.

Max temperature…..75 to 80.

24 HR TREND……Up 3 degrees.

Min humidity……..10 percent.

24 HR TREND……Down 5 percent.

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

mph.

LAL……………..1.

 WRIGHTWOOD:

Sunday

Sunny, with a high near 59. Light and variable wind becoming northeast 5 to 10 mph in the afternoon.

Sunday Night

Mostly clear, with a low around 40. North wind 5 to 10 mph becoming light and variable.

Monday

Sunny, with a high near 62. Light and variable wind becoming northeast 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

Monday Night

Mostly clear, with a low around 46. North wind 5 to 10 mph.

 PHELAN:

Sunday

Sunny, with a high near 70. West wind 5 to 10 mph becoming north in the morning. Winds could gust as high as 20 mph.

Sunday Night

Mostly clear, with a low around 45. North wind 5 to 10 mph becoming light and variable.

Monday

Sunny, with a high near 73. West wind 5 to 15 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.

Monday Night

Mostly clear, with a low around 50. North wind 5 to 10 mph becoming light and variable.

 TRONA:

Sunday

Sunny, with a high near 86. Light and variable wind becoming northeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

Sunday Night

Clear, with a low around 56. South wind around 6 mph becoming north in the evening.

Monday

Sunny, with a high near 90. Northeast wind 6 to 10 mph, with gusts as high as 18 mph.

Monday Night

Clear, with a low around 59. North wind around 7 mph.

 

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

SUNDAY…

* Sky/Weather………Sunny.

* Max temperature:

*     Valley floor….80-85.

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

* Min humidity:

*     Valley floor….9-13 percent.

*     24 hr trend…..Little change.

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

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

*     10000 ft msl….North 15 to 25 mph becoming northwest 10 to 15

mph in the afternoon.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

 

.SUNDAY NIGHT…

* Sky/Weather………Clear.

* Min temperature:

*     Valley floor….48-53.

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

* Max humidity:

*     Valley floor….28-33 percent.

*     24 hr trend…..On average down 2 percent.

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

*     Valley floor….Northwest wind up to 10 mph.

*     10000 ft msl….North 15 to 25 mph becoming 15 to 20 mph after

midnight.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

 

.MONDAY…

* Sky/Weather………Sunny.

* Max temperature:

*     Valley floor….84-89.

*    24 hr trend…..On average up 4 degrees.

* Min humidity:

*     Valley floor….8-12 percent.

*     24 hr trend…..Little change.

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

*     Valley floor….North wind 10 to 15 mph with gusts to around 30

mph.

*     10000 ft msl….North 15 to 25 mph becoming northeast 10 to 20

mph in the afternoon.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

 

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS:

SUNDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     Valley floor….74-79.  *     7000 feet…….59-64.  *     24 hr trend…..On average up 2 degrees.  * Min humidity:  *     Valley floor….11-14 percent.  *     7000 feet…….22-32 percent.  *     24 hr trend…..On average down 2 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….North winds up to 10 mph.  *     Upper slopes….Northeast winds up to 10 mph with gusts to around        25 mph.  *     10000 ft msl….Northwest 10 to 15 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..4.  .SUNDAY NIGHT…  * Sky/Weather………Clear.  * Min temperature:  *     Valley floor….44-49.  *     7000 feet…….21-26.  *     24 hr trend…..On average up 4 degrees.  * Max humidity:  *     Valley floor….44-49 percent.  *     7000 feet…….71-76 percent.  *     24 hr trend…..Little change.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Northwest winds up to 10 mph.  *     Upper slopes….Northwest winds up to 10 mph.  *     10000 ft msl….North 10 to 20 mph becoming 15 to 20 mph after        midnight.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..3.  .MONDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     Valley floor….78-83.  *     7000 feet…….64-69.  *     24 hr trend…..On average up 4 degrees.  * Min humidity:  *     Valley floor….10-14 percent.  *     7000 feet…….21-31 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 with gusts to around 25        mph.  *     10000 ft msl….North 15 to 25 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..4.

 

INLAND EMPIRE (CAZ248):

SUNDAY…

Sky/weather………Sunny.

Max temperature…..79 to 88.

24 HR TREND……Up 8 degrees.

Min humidity……..10 to 15 percent.

24 HR TREND……Down 20 percent.

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

LAL……………..1.

.SUNDAY NIGHT…

Sky/weather………Clear.

Min temperature…..52 to 61.

24 HR TREND……Up 3 degrees.

Max humidity……..25 to 35 percent.

24 HR TREND……Down 25 percent.

WIND (20 FT)……..Winds west 6 to 10 mph becoming east 6 to 11

                     mph after midnight. Gusts to 25 mph.

LAL……………..1.

.MONDAY…

Sky/weather………Sunny.

Max temperature…..82 to 92.

24 HR TREND……Up 3 degrees.

Min humidity……..10 percent.

24 HR TREND……Little change.

WIND (20 FT)……..Winds north 6 to 14 mph with gusts to 30 mph.

LAL……………..1.

 

DEVORE:

Sunday

Sunny, with a high near 82. Breezy, with a north wind 20 to 25 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

Sunday Night

Clear, with a low around 59. North wind 10 to 20 mph, with gusts as high as 30 mph.

Monday

Sunny, with a high near 84. Breezy, with a north wind 15 to 25 mph, with gusts as high as 40 mph.

Monday Night

Mostly clear, with a low around 61. Breezy, with a north wind 15 to 25 mph, with gusts as high as 40 mph.

 

CHINO HILLS:

Sunday

Sunny, with a high near 86. East wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

Sunday Night

Clear, with a low around 58. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.

Monday

Sunny, with a high near 90. East wind 10 to 15 mph becoming light and variable in the afternoon. Winds could gust as high as 20 mph.

Monday Night

Mostly clear, with a low around 60. West wind 5 to 15 mph becoming east in the evening. Winds could gust as high as 20 mph.

 

COLTON:

Sunday

Sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.

Sunday Night

Clear, with a low around 62. Southwest wind around 5 mph becoming calm in the evening.

Monday

Sunny, with a high near 89. Light north wind increasing to 5 to 10 mph in the morning.

Monday Night

Mostly clear, with a low around 63. Light and variable wind becoming north 5 to 10 mph after midnight.

 

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

SUNDAY… Sky/weather………Sunny.

Max temperature…..53 to 63 above 6000 feet to 63 to 70 below 6000

feet.

24 HR TREND……Up 4 degrees.

Min humidity……..15 percent.

24 HR TREND……Down 10 percent.

WIND (20 FT)……..

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

   RIDGETOP………Winds north 6 to 10 mph with gusts to 20 mph.

LAL……………..1.

.SUNDAY NIGHT… Sky/weather………Clear.

Min temperature…..25 to 35 above 6000 feet to 37 to 47 below 6000

feet.

24 HR TREND……Up 4 degrees.

Max humidity……..25 to 35 percent.

24 HR TREND……Down 20 percent.

WIND (20 FT)……..

SLOPES………..Winds northeast 6 to 14 mph with gusts to 30

                   mph.

   RIDGETOP………Winds north 6 to 13 mph with gusts to 30 mph.

LAL……………..1.

.MONDAY… Sky/weather………Mostly sunny.

Max temperature…..Around 66 above 6000 feet to 63 below 6000

feet.

24 HR TREND……Up 3 degrees.

Min humidity……..10 to 15 percent.

24 HR TREND……Little change.

WIND (20 FT)……..

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

   RIDGETOP………Winds north 6 to 15 mph with gusts to 30 mph.

LAL……………..1.

 

BANNING PASS:

SUNDAY… Sky/weather………Sunny.

Max temperature…..84 to 89.

24 HR TREND……Up 1 degree.

Min humidity……..10 percent.

24 HR TREND……Down 5 percent.

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

mph becoming east 6 to 8 mph in the afternoon.

LAL……………..1.

.SUNDAY NIGHT… Sky/weather………Clear.

Min temperature…..Around 66.

24 HR TREND……Up 1 degree.

Max humidity……..20 to 25 percent.

24 HR TREND……Down 5 percent.

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

LAL……………..1.

.MONDAY… Sky/weather………Mostly sunny.

Max temperature…..88 to 93.

24 HR TREND……Up 4 degrees.

Min humidity……..10 percent.

24 HR TREND……Little change.

WIND (20 FT)……..Winds west 6 to 13 mph becoming north in the

                     afternoon. Gusts to 30 mph.

LAL……………..1.

 

JOSHUA TREE AREA (CAZ261):

SUNDAY… * Sky/weather…………………Sunny.  * Max Temperature……………..68-80.  *    24 hr trend………………Little change.  * Min Humidity………………..10-15 pct.  *    24 hr trend………………5 pct drier.  * Winds – 20 foot…Slope/Valley..North 5 to 15 mph.  * Winds…10000 FT MSL…………Northwest 15 to 25 mph.  * Chance of Precip…………….0 percent.  * CWR (>= 0.10 IN)…………….0 percent.  * LAL………………………..1.  * Haines High Level Index………3 or very low potential for large    plume dominated fire growth.  .SUNDAY NIGHT…* Sky/weather…………………Clear.  * Min Temperature……………..50-58.  *    24 hr trend………………Little change.  * Max Humidity………………..23-29 pct.  *    24 hr trend………………3 pct drier.  * Winds – 20 foot…Slope/Valley..Northwest 5 to 15 mph.  * Winds…10000 FT MSL…………North 15 to 25 mph.  * Chance of Precip…………….0 percent.  * CWR (>= 0.10 IN)…………….0 percent.  * LAL………………………..1.  .MONDAY…Sky/weather…………………Mostly sunny.  * Max Temperature……………..72-84.  *    24 hr trend………………3 degrees warmer.  * Min Humidity………………..11-16 pct.  *    24 hr trend………………Little change.  * Winds – 20 foot…Slope/Valley..North 10 to 20 mph.  * Winds…10000 FT MSL…………North 10 to 20 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.

 

NEEDLES, RIVER BAT. (CAZ229):

SUNDAY… * Sky/Weather………Sunny.

* Max temperature:

*     Valley floor….83-88.

*     24 hr trend…..Little change.

* Min humidity:

*     Valley floor….9-15 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 20 to 30 mph becoming north 15 to 20

mph in the afternoon.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

* Mixing height…….9800 ft agl.

* Transport winds…..North 10 to 20 knots.

* Ventilation………Excellent.

 

.SUNDAY NIGHT… Sky/Weather………Clear.

* Min temperature:

*     Valley floor….52-57.

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

* Max humidity:

*     Valley floor….32-37 percent.

*     24 hr trend…..On average down 2 percent.

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

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

*     10000 ft msl….North 15 to 20 mph becoming northeast 10 to 15

mph after midnight.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..5.

 

.MONDAY…Sky/Weather………Sunny.

* Max temperature:

*     Valley floor….87-92.

*     24 hr trend…..On average up 4 degrees.

* Min humidity:

*     Valley floor….9-15 percent.

*     24 hr trend…..Little change.

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

*     Valley floor….North wind 10 to 15 mph with gusts to around 30

       mph.

*     10000 ft msl….Northeast 10 to 15 mph.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

* Mixing height…….10800 ft agl.

* Transport winds…..North 15 to 20 knots.

* Ventilation………Excellent.

 

LAS VEGAS CLARK COUNTY BORDER:

SUNDAY… Sky/Weather………Sunny.  * Max temperature:  *     4000 feet…….75-80.  *     24 hr trend…..On average up 3 degrees.  * Min humidity:  *     4000 feet…….13-18 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….North 20 to 30 mph decreasing to 15 to 20 mph in        the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.  * Mixing height…….10300 ft agl.  * Transport winds…..North around 10 knots.  * Ventilation………Very good.  .SUNDAY NIGHT…Sky/Weather………Clear.  * Min temperature:  *     4000 feet…….46-51.  *     24 hr trend…..On average up 2 degrees.  * Max humidity:  *     4000 feet…….40-45 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….North 10 to 20 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.  .MONDAY…Sky/Weather………Sunny.  * Max temperature:  *     4000 feet…….80-85.  *     24 hr trend…..On average up 5 degrees.  * Min humidity:  *     4000 feet…….12-17 percent.  *     24 hr trend…..Little change.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….North winds 10 to 15 mph with gusts to around 25        mph.  *     10000 ft msl….Northeast 10 to 20 mph becoming 10 to 15 mph in        the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..4.  * Mixing height…….9500 ft agl.  * Transport winds…..North 10 to 15 knots.  * Ventilation………Very good.

 

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

Elevated fire danger likely Sunday through at least Thursday across portions of Southwest California due to weak offshore flow with warm and dry conditions LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ247/CAZ249):SUNDAY… Sky/weather………Sunny.  Max temperature…..82-87.     24 hr trend……Up 8.  Min humidity……..15-25 percent.     24 hr trend……Down 20.  20-foot winds…….North to northeast 6-12 mph with gusts to 20 mph                      becoming south 6-12 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SUNDAY NIGHT… Sky/weather………Clear.  Min temperature…..55-64.  Max humidity……..30-50 percent.  20-foot winds…….West 6-12 mph with local gusts to 20 mph early                     becoming northeast with gusts to 25 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .MONDAY… Sky/weather………Sunny.  Max temperature…..86-91.  Min humidity……..12-20 percent.  20-foot winds…….Northeast 6-12 mph with local gusts to 25 mph                      becoming southwest 6-12 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. LOS ANGELES COUNTY SAN FERNANDO VALLEY:SUNDAY… Sky/weather………Sunny.  Max temperature…..82-91.     24 hr trend……Up 6.  Min humidity……..12-20 percent.     24 hr trend……Down 12.  20-foot winds…….North to northeast 8-15 mph with local gusts to 25 mph                      becoming south 6-12 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SUNDAY NIGHT… Sky/weather………Clear.  Min temperature…..55-63.  Max humidity……..25-45 percent.  20-foot winds…….South 6-12 mph with local gusts to 20 mph early                     becoming north 15-25 mph with gusts to 35 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .MONDAY…Sky/weather………Sunny.  Max temperature…..86-95.  Min humidity……..10-18 percent.  20-foot winds…….North to northeast 8-15 mph with local gusts to 25 mph                      becoming south 6-12 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. SANTA MONICA MOUNTAINS RECREATIONAL AREA:.SUNDAY… Sky/weather………Sunny.  Max temperature…..80-87.     24 hr trend……Up 6.  Min humidity……..15-25 percent.     24 hr trend……Down 15.  20-foot winds…….      Valleys/lwr slopes…Northeast 8-15 mph becoming southwest                           with local canyon gusts to 30 mph in                           the afternoon.      Ridges/upr slopes….Northeast 8-15 mph becoming southwest                           in the afternoon. Isolated gusts to 30                           mph western peaks.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SUNDAY NIGHT…Sky/weather………Clear.  Min temperature…..58-65.  Max humidity……..25-40 percent except 40-50 percent colder                      valleys.  20-foot winds…….      Valleys/lwr slopes…Northwest increasing to 15-25 mph with                           gusts to 35 mph then becoming northeast 15-25                           mph with gusts to 35 mph late.      Ridges/upr slopes….West 10-20 mph with gusts to 25 mph in the                          evening becoming north to northeast 15-30 mph with                           local gusts to 45 mph. Strongest western peaks.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .MONDAY…Sky/weather………Sunny.  Max temperature…..86-93.  Min humidity……..12-25 percent.  20-foot winds…….      Valleys/lwr slopes…Northeast 10-20 mph with gusts to 30 mph                           becoming northwest to north 8-15 mph with                           gusts to 25 mph in the afternoon.      Ridges/upr slopes….Northeast 15-25 mph with local gusts to 40 mph                           becoming north 10-20 mph with gusts to                           25 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. SANTA CLARITA VALLEY:.SUNDAY…Sky/weather………Sunny.  Max temperature…..81-85.     24 hr trend……Up 6.  Min humidity……..12-18 percent.     24 hr trend……Down 7.  20-foot winds…….Northeast 8-15 mph with local gusts to 25 mph                     becoming 6-12 mph with local gusts to 20 mph in                      the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SUNDAY NIGHT…Sky/weather………Clear.  Min temperature…..52-57.  Max humidity……..30-40 percent.  20-foot winds…….North 8-15 mph with local gusts to 25 mph                      early becoming northeast 10-20 mph with local                      gusts to 30 mph late.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .MONDAY…Sky/weather………Sunny.  Max temperature…..85-91.  Min humidity……..8-15 percent.  20-foot winds…….Northeast 10-20 mph with gusts to 30 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent ANGELES NATIONAL FOREST (CAZ253):.SUNDAY… Sky/weather………Sunny.  Max temperature…..73-83 low elevations to 60-67 higher                      elevations.     24 hr trend……Up 6.  Min humidity……..12-18 percent.     24 hr trend……Down 10.  20-foot winds…….      Valleys/lwr slopes…Northeast 10-20 mph with gusts to 25 mph.      Ridges/upr slopes….Northeast 10-20 mph with gusts to 30 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SUNDAY NIGHT…Sky/weather………Clear.  Min temperature…..50-60 low elevations to 40-47 colder valleys                      and peaks.  Max humidity……..25-35 percent except 35-45 percent colder                      valleys.  20-foot winds…….      Valleys/lwr slopes…North 10-20 mph with gusts to 25 mph in                           the evening becoming northeast 10-20 mph                           with gusts to 30 mph late.      Ridges/upr slopes….North 10-20 mph with gusts to 30 mph in                           the evening becoming northeast 15-25 mph                           with gusts to 35 mph late.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .MONDAY…Sky/weather………Sunny.  Max temperature…..78-88 low elevations to 64-71 higher                      elevations.  Min humidity……..10-15 percent.  20-foot winds…….      Valleys/lwr slopes…Northeast 10-20 mph with gusts to 30 mph.      Ridges/upr slopes….Northeast 15-25 mph with gusts to 35 mph.                           Isolated gusts to 45 mph near Whitaker                           Peak.  LAL……………..1.  CWR (>0.10 IN)……0 percent. ANTELOPE VALLEY (CAZ259):.SUNDAY… Sky/weather………Sunny.  Max temperature…..72-80.     24 hr trend……Up 3.  Min humidity……..10-15 percent.  24 hr trend……Down 5.  20-foot winds…….Northeast 6-12 mph becoming 8-15 mph with gusts to                      25 mph by the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .SUNDAY NIGHT…Sky/weather………Clear.  Min temperature…..44-54.  Max humidity……..30-45 percent.  20-foot winds…….Northeast 6-12 mph with local gusts to 20 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .MONDAY…Sky/weather………Sunny.  Max temperature…..78-84.  Min humidity……..10-15 percent.  20-foot winds…….Northeast 10-20 mph with gusts to 30 mph becoming                      6-12 mph with gusts to 25 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent KERN CO. DESERTS (CAZ298):.SUNDAY…Sky/weather………Sunny.  MAX TEMPERATURE…..73-78.     24 HR TREND……Up 3-5 degrees.  MIN HUMIDITY……..11-21 percent.     24 HR TREND……Down 3-5 percent.  20-FOOT WINDS…….Northeast 3-6 mph in the early morning                     increasing to 3-9 mph by afternoon.  LAL……………..1.  VENTILATION………Good.  Mixing height…….8700 ft AGL.  TRANSPORT WINDS…..Northeast 5 to 10 mph.  CHC WETTING RAIN….0 percent.  .SUNDAY NIGHT…Sky/weather………Clear.  MIN TEMPERATURE…..50-55.     24 HR TREND……Up 1-3 degrees.  MAX HUMIDITY……..40-50 percent.     24 HR TREND……Down 4-10 percent.  20-FOOT WINDS…….Northeast 7 mph in the early evening shifting                      to the north.  LAL……………..1.  CHC WETTING RAIN….0 percent.  .MONDAY…Sky/weather………Sunny.  MAX TEMPERATURE…..76-81.     24 HR TREND……Up 2-4 degrees.  MIN HUMIDITY……..9-19 percent.     24 HR TREND……Down 1-3 percent.  20-FOOT WINDS…….North 3-8 mph in the early morning increasing                      to northeast 8-13 mph by afternoon.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….8800 ft AGL.  TRANSPORT WINDS…..Northeast around 10 mph.  CHC WETTING RAIN….0 percent. TEHACHAPI:.SUNDAY… Sky/weather………Sunny.  Max temperature…..     5000 FEET……..65-70.     24 HR TREND……Up 3-9 degrees.  MIN HUMIDITY……..     5000 FEET……..15-25 percent.     24 HR TREND……Down 5-11 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Downslope 3-6 mph in the early morning then                      easterly 3-9 mph by afternoon.     RIDGES………..Northeast 3-7 mph.  LAL……………..1.  VENTILATION………Good.  Mixing height…….8700 ft AGL.  TRANSPORT WINDS…..East around 5 mph in the morning shifting to                      the northwest in the afternoon.  CHC WETTING RAIN….0 percent.  .SUNDAY NIGHT…Sky/weather………Clear.  Min temperature….     5000 FEET……..44-49.     24 HR TREND……Up 2-4 degrees.  MAX HUMIDITY……..     5000 FEET……..45-55 percent.     24 HR TREND……Down 7-13 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Upslope/upvalley 7 mph in the early evening                      shifting to downslope 3-6 mph .     RIDGES………..Northwest 3-6 mph in the early evening shifting                      to the northeast 3-7 mph.  LAL……………..1.  CHC WETTING RAIN….0 percent.  .MONDAY…Sky/weather………Sunny.  Max temperature…..     5000 FEET……..69-74.     24 HR TREND……Up 3-5 degrees.  MIN HUMIDITY……..     5000 FEET……..13-21 percent.     24 HR TREND……Down 2-4 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Downslope 3-9 mph.     RIDGES………..Northeast 3-9 mph.  LAL……………..1.  VENTILATION………Very good.  Mixing height…….8900 ft AGL.  TRANSPORT WINDS…..Northeast around 5 mph.  CHC WETTING RAIN….0 percent. ORANGE CO. (ANAHEIM):SUNDAY…Mostly sunny. Warmer. Highs 82 to 87. Areas of winds  northeast 15 mph in the morning becoming light.  .SUNDAY NIGHT…Clear. Lows 57 to 63. Light winds becoming east  15 mph with gusts to 25 mph overnight.  .MONDAY…Sunny. Highs around 90. Areas of winds northeast 15 to  20 mph becoming west in the afternoon. Gusts to 25 mph.  .MONDAY NIGHT…Mostly clear. Lows 58 to 64. Light winds becoming  east 15 mph with gusts to 25 mph overnight. SAN DIEGO COAST (SAN DIEGO):SUNDAY…Mostly sunny. Warmer. Highs 74 to 79 near the coast to  79 to 84 inland. Light winds becoming west 15 mph in the  afternoon.  .SUNDAY NIGHT…Clear. Lows 51 to 61. Light winds.  .MONDAY…Sunny. Highs 77 to 82 near the coast to 82 to  87 inland. Light winds.  .MONDAY NIGHT…Mostly clear. Lows 57 to 64. Light winds.====================================================================THIS DAY IN WEATHER HISTORY:

1997: Heavy rain and thunderstorms developed on this day and ended on 9/26. Moisture came from the remnants of Hurricane Nora, which had moved up the Gulf of California and weakened over Yuma, AZ, giving that city more rainfall in three hours than for a normal entire season. Rainfall totals were 5.50 inches at Mt. San Jacinto, 4.70 inches Mt. Laguna, 4.41 inches Mt. San Gorgonio, three to four inches at several other locations in mountains, 3.07 inches in Twentynine Palms, 1.5 to two inches at Coachella and Borrego Valleys, 2.88 inches in Hemet, and one to two inches in many inland areas. Flooding occurred in Palm Springs, Borrego Springs, and Spring Valley. Traffic deaths also resulted.

 

1986: Unseasonable rainfall hit San Diego County on this day and on 9/25: 1.04 inches fell in San Diego, 5.14 inches in Palomar Mountain, 2.07 inches in Julian, 1.95 inches in Los Angeles, 1.88 inches in Mt. Laguna, 1.61 inches in Lemon Grove, 1.58 inches in Pt. Loma, 1.57 inches in Vista, and 1.47 inches at SDSU. Flooding occurred in low roadways in Mission Valley. Power was knocked out over a wide area. Home games for the Angels and Dodgers were rained out.

 

1982: The remnants of Hurricane Olivia recurved northeastward across Southern California with rainfall up to four inches in the mountains starting on this day and ending on 9/26. This occurred during the strong El Niño of 1982-83.

1976: A thunderstorm dropped four inches of rain in three hours in Borrego Valley. Only 1.2 inches fell at the Anza Borrego Desert State Park headquarters. Damage and erosion to fields, property, and the airport resulted.

 

1963: Thunderstorms hit the San Bernardino Mountains and high desert around Barstow, producing flash flooding east of Barstow.

1945: It was 26° in Idyllwild, the lowest temperature on record for September. This also occurred the previous day on 9/23/1945, on 9/20/1965, and on 9/21/1968. 1939: A thunderstorm on this day dropped 6.45 inches in six hours at Indio. This preceded “El Cordonazo” or “The Lash of St. Francis”, an actual tropical storm. For the entire storm, which started on this day and ended on 9/26, four inches of rain fell across the deserts and mountains as a dying tropical cyclone moved across Baja California into southwestern Arizona. This was the second tropical cyclone to impact California during the busy month of September 1939. A strong El Niño may have contributed to the activity. The tropical storm produced 50 mph winds over the ocean and estimated seas of 40 feet. 48 died from sinking boats and harbors were damaged. Californians were generally unprepared and were alerted to their vulnerability to tropical storms. In response, the weather bureau established a forecast office for Southern California, which began operations in February of 1940.=========================================================================TROPICAL EAST PACIFIC REPORT:

Tropical Weather Outlook

 

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

 

The National Hurricane Center is issuing advisories on newly formed

Tropical Depression Eighteen-E, located near the southwest coast of

Mexico.

 

A broad area of low pressure continues to produce shower and

thunderstorms over the far eastern Pacific. Some gradual development

of this system is possible over the next few days before the system

moves inland over Central America early next week.

* Formation chance through 48 hours…low…20 percent.

* Formation chance through 5 days…medium…40 percent.

 

Tropical Depression Eighteen

 

…TROPICAL DEPRESSION EXPECTED TO BECOME A TROPICAL STORM

TONIGHT OR SUNDAY…

 

SUMMARY OF 700 PM CDT…0000 UTC…INFORMATION

———————————————-

LOCATION…18.5N 105.5W

ABOUT 75 MI…125 KM WSW OF MANZANILLO MEXICO

ABOUT 130 MI…215 KM S OF CABO CORRIENTES MEXICO

MAXIMUM SUSTAINED WINDS…35 MPH…55 KM/H

PRESENT MOVEMENT…NNW OR 335 DEGREES AT 5 MPH…7 KM/H

MINIMUM CENTRAL PRESSURE…1005 MB…29.68 INCHES

 

 

WATCHES AND WARNINGS

——————–

CHANGES WITH THIS ADVISORY:

 

None.

 

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

 

A Tropical Storm Warning is in effect for…

* The southwestern coast of Mexico from Manzanillo northward to El

Roblito, including the Islas Marias

 

A Tropical Storm Warning means that tropical storm conditions are

expected somewhere within the warning area, in this case within the

next 24 to 36 hours.

 

For storm information specific to your area, please monitor products

issued by your national meteorological service.

 

 

DISCUSSION AND 48-HOUR OUTLOOK

——————————

At 700 PM CDT (0000 UTC), the center of Tropical Depression

Eighteen-E was located near latitude 18.5 North, longitude 105.5

West. The depression is moving toward the north-northwest near 5 mph

(7 km/h), and this general motion is expected to continue for the

next couple of days. On the forecast track, the depression is

expected to pass near or just offshore of the southwestern coast of

Mexico tonight into Monday.

 

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

gusts. Some strengthening is expected during the next 48 hours, and

the depression is forecast to become a tropical storm tonight or

early Sunday.

 

The estimated minimum central pressure is 1005 mb (29.68 inches).

 

 

HAZARDS AFFECTING LAND

———————-

RAINFALL: The depression is expected to produce total rain

accumulations of 3 to 6 inches with possible isolated maximum

amounts of 15 inches over the western portions of the Mexican states

of Michoacan, Colima, western Jalisco and Nayarit. This rainfall

could cause life-threatening flash floods and mudslides.

 

WIND: Tropical Storm conditions are expected to begin within the

southern portion of the warning area this evening or early Sunday,

and gradually spread northward along the Mexican coast on Sunday and

Monday.

  

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

CURRENT WEATHER @ HESP. @0730hrs TEMP:470 RH:64% WIND: CALM8.17” RF @ HESP. STA.SINCE JUL 1st/20 Yr Avg: 7.12”  : MONTH:0.04”   YTD S/F: 0.00” /

————————————————————————————–

FIRES: UPDATED

 

National Preparedness Level 3

 

Initial attack activity: Light (28) new fires
New large incidents: 0
Large fires contained: 1
Uncontained large fires:** 19
Area Command teams committed: 0
NIMOs committed: 2
Type 1 IMTs committed: 2
Type 2 IMTs committed: 15

 

 

Two hundred and forty-five soldiers from the 23rd Brigade Engineer Battalion and 1-23 Infantry Battalion based out of Fort Lewis, Washington are deployed in support of the Umpqua North Complex.

 

 

 

Active Incident Resource Summary
GACC Fires Cumulative Acres Crews Engines Helicopters Total Personnel
AICC 0 0 0 0 0 0
NWCC 23 755,305 117 128 23 4,781
ONCC 8 227,341 66 99 24 2,824
OSCC 6 61,886 12 12 1 503
NRCC 31 669,228 27 86 11 1,620
GBCC 4 118,920 2 3 1 75
SWCC 7 5,539 8 13 5 304
RMCC 6 8,053 6 31 0 201
EACC 0 0 0 0 0 0
SACC 2 1,766 0 0 0 0
Total 87 1,848,038 238 372 65 10,308

 

Southern California Area (PL 3)

New fires: 9
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, 98% contained
  • Minimal fire behavior
  • Burning in tree mortality area

 

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, 95% contained
  • Minimal fire behavior

 

Northern California Area (PL 3)

New fires: 8
New large incidents: 0
Uncontained large fires: 4
Type 2 IMTs committed: 4

 

NORTH OPS INFO

09/23/2017 1840 CA-LNU Estate Fire 55 acres grass, 90% contained, Forward spread has been stopped. Structures involved.

 

09/23/2017 1450 CA-LNU Estate Fire 55 acres grass, 65% contained, Forward spread has been stopped. Structures involved.

 

09/23/2017 1200 CA-LNU Estate Fire 20 acres grass, 0% contained, Forward spread has been stopped. Structures involved. Threat to 115kV powerlines. Federal air resources committed map

 

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