SBD FIRE WEATHER AND INFO 10/3/17

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: 10/3/17
SKYWARN: NORMAL

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

DAYS NO R.F. @ STA.: 23

 

National Preparedness Level (PL 2) 

Southern California Area

Preparedness Level: (PL 3) 

Northern California Area

Preparedness Level (PL 3) SYNOP:

***Strong warming trend late this week***

A cutoff low pressure area currently situated near Susanville will result in unseasonably cool weather today. Highs will range from the 50s in the mountains to the 70s across the valleys. West winds of 15-25 mph with gusts to 35 mph can be expected over the deserts this afternoon. There is just enough instability in the atmosphere to allow for cumulus buildups and isolated showers near the Crest from Yosemite northward today. But most other areas will see mostly sunny skies this afternoon. The low will move east of the region Wednesday and will be replaced by high pressure building along the coast. This will lead to drier and much warmer weather late in the week. Temperatures will warm 5-8 degrees each day, and by Friday, highs will reach the mid-90s in most of the valleys. Local offshore will be possible over the passes of Southern California during the night through late morning hours, beginning Wednesday morning. At this time, the strongest winds are expected early Thursday morning and again Friday night through Saturday morning when wind speeds may reach the 10-20 mph range with gusts to 35 mph. Minimum RH will likely fall into the 10-15% range by Friday with poor recovery over much of southern California through the end of the week. Cooler weather will slowly return next Sunday and Monday as pressure gradients turn back onshore.

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

Gusty southerly winds of 30 to 40 mph will combine with drying fuels and low humidity to create near critical fire weather across portions of the area today. Have opted not to issue any products at this time, as most elements look to stay just below thresholds. For the rest of the week, expect lighter winds and  increasing temperatures.

 

SPECIAL NOTES:

WEATHER OUTLOOK FOR OCT-JAN 2018

SUMMARY:

 Above normal temperatures fall/early winter

 

 Below normal precipitation possible through the “rainy season”

 

 Near to slightly above normal offshore wind events possible this fall

 

 La Niña watch issued – a weak La Niña is possible through early next year.

 

SANTA ANA OUTLOOK

 

Potential Impacts:

Fuels remain dry across the region and any Santa Ana wind event will have a significant impact on fire potential until wetting rains occur. The recent Canyon Fire burned over 2,000 acres during a weak Santa Ana wind episode last month which is a testimony to the dry state of the fuels. Traditionally, some of the worst fires associated with Santa Ana winds have occurred during the month of October, with the fires in 2003 and 2007 being the most memorable. With the possibilty of above normal Santa Ana wind days this fall, large fire potential will remain high across Southern California.

 

Summary:

The PDO and the Niño3.4 Index have been trending lower since the early part of the summer, and we anticipate these values to slowly lower through the fall. This may encourage high pressure ridging across the Eastern Pacific which is a more favorable weather pattern for increased frequency of Santa Ana winds. All forecast guidance suggests that there will be a greater than normal number of Santa Ana wind days for both the October, and the October through December time periods. Confidence in this forecast is moderate to high.

 

DAILY FUELS/FIRE POTENTIAL:

Large fire potential will return to elevated levels beginning Thursday across much of the valley and urban interface regions of Southern California. Locally gusty winds in areas such as northern Los Angeles County and the Santa Ana Canyon will result in rapid rates of spread through all vegetation types. The winds may allow for active burning at night with any new start as marine layer influence will be minimal this week. Dead fuel moisture is well below normal over most lower elevation sites away from the coast. Across the rest of the district, including all of Central California, large fire potential should remain very low.

 

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

 

ZONE 1: L.A. – VENTURA; NO RATE

 

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):

TUESDAY…

Sky/weather………Mostly sunny.

Max temperature…..74 to 83.

24 HR TREND……Down 1 degree.

Min humidity……..10 to 15 percent.

24 HR TREND……Up 10 percent.

WIND (20 FT)……..Winds south 9 to 19 mph. Gusts to 25

mph…becoming 35 mph in the afternoon.

LAL……………..1.

.TUESDAY NIGHT…

Sky/weather………Mostly clear.

Min temperature…..43 to 51.

24 HR TREND……Down 5 degrees.

Max humidity……..50 to 60 percent.

24 HR TREND……Up 10 percent.

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

becoming west 6 to 11 mph with gusts to 20 mph

after midnight.

LAL……………..1.

.WEDNESDAY…

Sky/weather………Sunny.

Max temperature…..77 to 83.

24 HR TREND……Up 3 degrees.

Min humidity……..10 percent.

24 HR TREND……Down 10 percent.

WIND (20 FT)……..Winds west 6 to 8 mph in the morning becoming

variable 2 to 5 mph.

LAL……………..1.

 WRIGHTWOOD:

Tuesday

Sunny, with a high near 61. Light south wind becoming southwest 5 to 10 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 45. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

Wednesday

Sunny, with a high near 66. West wind around 5 mph becoming northeast in the afternoon.

Wednesday Night

Clear, with a low around 47. Northeast wind around 5 mph becoming calm.

 PHELAN:

Tuesday

Sunny, with a high near 70. South wind 10 to 15 mph, with gusts as high as 30 mph.

Tuesday Night

Mostly clear, with a low around 45. South wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.

Wednesday

Sunny, with a high near 75. West wind 5 to 10 mph becoming north in the afternoon.

Wednesday Night

Clear, with a low around 48. North wind 5 to 10 mph becoming southwest in the evening.

 TRONA:

Tuesday

Sunny, with a high near 87. Breezy, with a north wind 6 to 11 mph becoming south southwest 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph.

Tuesday Night

Clear, with a low around 48. Southwest wind 13 to 18 mph becoming west northwest 6 to 11 mph after midnight. Winds could gust as high as 25 mph.

Wednesday

Sunny, with a high near 87. North wind 5 to 9 mph becoming southeast in the afternoon.

Wednesday Night

Clear, with a low around 53. West southwest wind 6 to 9 mph becoming north northwest after midnight.

 

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

TUESDAY…

* Sky/Weather………Sunny.

* Max temperature:

*     Valley floor….86-91.

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

* Min humidity:

*     Valley floor….9-15 percent.

*     24 hr trend…..Little change.

* 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.

*     10000 ft msl….Southwest 20 to 30 mph increasing to 25 to 35 mph

in the afternoon.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

 

.TUESDAY NIGHT…

* Sky/Weather………Clear.

* Min temperature:

*     Valley floor….44-49.

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

* Max humidity:

*     Valley floor….46-51 percent.

*     24 hr trend…..On average up 13 percent.

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

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

*     10000 ft msl….Southwest 25 to 35 mph.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..5.

 

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS:

.TUESDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     Valley floor….75-80.  *     7000 feet…….61-66.  *     24 hr trend…..On average up 4 degrees.  * Min humidity:  *     Valley floor….11-14 percent.  *     7000 feet…….13-23 percent.  *     24 hr trend…..On average down 2 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….West winds up to 10 mph shifting to the southeast        with gusts to around 30 mph in the afternoon.  *     Upper slopes….South winds 10 to 15 mph. Gusts up to 30 mph in        the afternoon.  *     10000 ft msl….South 10 to 15 mph becoming 10 to 20 mph in the        afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.  .TUESDAY NIGHT…  * Sky/Weather………Clear.  * Min temperature:  *     Valley floor….38-43.  *     7000 feet…….21-26.  *     24 hr trend…..On average up 2 degrees.  * Max humidity:  *     Valley floor….42-47 percent.  *     7000 feet…….50-55 percent.  *     24 hr trend…..On average up 4 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….West winds 10 to 15 mph.  *     Upper slopes….West winds 10 to 15 mph.  *     10000 ft msl….West 10 to 15 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..4.  .WEDNESDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     Valley floor….75-80.  *     7000 feet…….64-69.  *     24 hr trend…..Little change.  * Min humidity:  *     Valley floor….11-14 percent.  *     7000 feet…….8-18 percent.  *     24 hr trend…..On average down 2 percent.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Northwest winds around 10 mph shifting to the        east up to 10 mph in the afternoon.  *     Upper slopes….Northwest winds up to 10 mph shifting to the        southeast around 10 mph in the afternoon.  *     10000 ft msl….Southwest up to 10 mph.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.

 

INLAND EMPIRE (CAZ248):

.TUESDAY…

Sky/weather………Cloudy…becoming mostly sunny.

Max temperature…..72 to 78.

24 HR TREND……Down 2 degrees.

Min humidity……..35 to 45 percent.

24 HR TREND……Up 5 percent.

WIND (20 FT)……..Winds southwest 6 to 10 mph. Gusts to 20 mph in

the afternoon.

LAL……………..1.

.TUESDAY NIGHT…

Sky/weather………Mostly clear.

Min temperature…..51 to 57.

24 HR TREND……Down 3 degrees.

Max humidity……..75 to 85 percent.

24 HR TREND……Down 5 percent.

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

the evening becoming variable 2 to 5 mph.

LAL……………..1.

.WEDNESDAY…

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

Max temperature…..79 to 85.

24 HR TREND……Up 7 degrees.

Min humidity……..15 to 25 percent.

24 HR TREND……Down 20 percent.

WIND (20 FT)……..Variable 2 to 5 mph becoming west 6 to 9 mph

with gusts to 20 mph in the afternoon.

LAL……………..1.

 

DEVORE:

Tuesday

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

Tuesday Night

Mostly clear, 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.

Wednesday

Sunny, with a high near 80. North wind 10 to 15 mph becoming light and variable in the afternoon. Winds could gust as high as 20 mph.

Wednesday Night

Clear, with a low around 57. Light and variable wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 25 mph.

 

CHINO HILLS:

Tuesday

Cloudy through mid morning, then gradual clearing, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

Tuesday Night

Partly cloudy, with a low around 55. Southwest wind 10 to 15 mph becoming light south after midnight. Winds could gust as high as 20 mph.

Wednesday

Sunny, with a high near 80. Light and variable wind becoming west 5 to 10 mph in the afternoon.

Wednesday Night

Clear, with a low around 53. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

 

COLTON:

Tuesday

Mostly sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 58. West wind 5 to 10 mph becoming light northwest in the evening.

Wednesday

Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

Clear, with a low around 58. West wind 5 to 10 mph becoming light south.

 

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

TUESDAY…

Sky/weather………Mostly sunny.

Max temperature…..58 to 65 above 6000 feet to 66 below 6000 feet.

24 HR TREND……Down 1 degree.

Min humidity……..15 to 20 percent on desert slopes to 25 to 35

percent on coastal slopes.

24 HR TREND……Up 5 percent.

WIND (20 FT)……..

SLOPES………..Winds south 7 to 17 mph with gusts to 35 mph.

RIDGETOP………Winds southwest 6 to 12 mph with gusts to 25

mph.

LAL……………..1.

.TUESDAY NIGHT…

Sky/weather………Mostly clear.

Min temperature…..36 to 45 above 6000 feet to 41 to 49 below 6000

feet.

24 HR TREND……Down 2 degrees.

Max humidity……..25 to 30 percent on desert slopes to 60 to 70

percent on coastal slopes.

24 HR TREND……Down 15 percent.

WIND (20 FT)……..

SLOPES………..Winds south 7 to 17 mph with gusts to 35 mph

becoming west 6 to 11 mph with gusts to 25 mph

after midnight.

RIDGETOP………Winds southwest 6 to 13 mph with gusts to 30

mph.

LAL……………..1.

.WEDNESDAY…

Sky/weather………Sunny.

Max temperature…..63 to 73 above 6000 feet to 68 to 75 below 6000

feet.

24 HR TREND……Up 5 degrees.

Min humidity……..10 to 15 percent.

24 HR TREND……Down 5 percent.

WIND (20 FT)……..

SLOPES………..Winds west around 6 mph.

RIDGETOP………Winds southwest 6 to 9 mph. Gusts to 20 mph in

the morning.

LAL……………..1.

 

BANNING PASS:

.TUESDAY…

Sky/weather………Sunny.

Max temperature…..87 to 92.

24 HR TREND……Up 1 degree.

Min humidity……..15 to 20 percent.

24 HR TREND……Little change.

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

LAL……………..1.

.TUESDAY NIGHT…

Sky/weather………Mostly clear.

Min temperature…..58 to 67.

24 HR TREND……Up 2 degrees.

Max humidity……..25 to 35 percent.

24 HR TREND……Down 15 percent.

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

mph.

LAL……………..1.

.WEDNESDAY…

Sky/weather………Sunny.

Max temperature…..88 to 93.

24 HR TREND……Little change.

Min humidity……..10 percent.

24 HR TREND……Down 5 percent.

WIND (20 FT)……..Winds west 6 to 9 mph with gusts to 20 mph

becoming east around 6 mph in the afternoon.

LAL……………..1.

 

JOSHUA TREE AREA (CAZ261):

.TUESDAY…  * Sky/weather…………………Sunny.  * Max Temperature……………..73-86.  *    24 hr trend………………Little change.  * Min Humidity………………..15-24 pct.  *    24 hr trend………………5 pct wetter.  * Winds – 20 foot…Slope/Valley..Southwest 5 to 15 mph.  * Winds…10000 FT MSL…………Southwest 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.  .TUESDAY NIGHT…  * Sky/weather…………………Clear.  * Min Temperature……………..50-62.  *    24 hr trend………………Little change.  * Max Humidity………………..33-40 pct.  *    24 hr trend………………Little change.  * Winds – 20 foot…Slope/Valley..West 5 to 15 mph.  * Winds…10000 FT MSL…………Southwest 20 to 30 mph.  * Chance of Precip…………….0 percent.  * CWR (>= 0.10 IN)…………….0 percent.  * LAL………………………..1.  .WEDNESDAY…  * Sky/weather…………………Sunny.  * Max Temperature……………..76-86.  *    24 hr trend………………Little change.  * Min Humidity………………..11-16 pct.  *    24 hr trend………………6 pct drier.  * Winds – 20 foot…Slope/Valley..West 5 to 15 mph.  * Winds…10000 FT MSL…………Southwest 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.
NEEDLES, RIVER BAT. (CAZ229):

.TUESDAY…

* Sky/Weather………Sunny.

* Max temperature:

*     Valley floor….89-94.

*     24 hr trend…..On average up 5 degrees.

* Min humidity:

*     Valley floor….9-14 percent.

*     24 hr trend…..Little change.

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

*     Valley floor….Northeast wind up to 10 mph shifting to the south

in the afternoon.

*     10000 ft msl….Southwest 25 to 30 mph increasing to south 30 to

35 mph in the afternoon.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..4.

* Mixing height…….8000 ft agl.

* Transport winds…..Northeast around 10 knots shifting to the

south 15 to 20 knots in the afternoon.

* Ventilation………Excellent.

 

.TUESDAY NIGHT…

* Sky/Weather………Clear.

* Min temperature:

*     Valley floor….58-63.

*     24 hr trend…..On average up 8 degrees.

* Max humidity:

*     Valley floor….48-53 percent.

*     24 hr trend…..On average up 24 percent.

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

*     Valley floor….South wind 10 to 15 mph shifting to the southeast

after midnight.

*    10000 ft msl….South 25 to 35 mph increasing to 35 to 45 mph

after midnight.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..5.

 

.WEDNESDAY…

* Sky/Weather………Sunny.

* Max temperature:

*     Valley floor….89-94.

*     24 hr trend…..Little change.

* Min humidity:

*     Valley floor….8-14 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….Southwest 30 to 40 mph decreasing to 20 to 30 mph

in the afternoon.

* CWR (>= 0.10 in)….0 percent.

* LAL……………..1.

* Haines Index……..5.

* Mixing height…….6600 ft agl.

* Transport winds…..Light winds.

* Ventilation………Fair.

 

LAS VEGAS CLARK COUNTY BORDER:

.TUESDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     4000 feet…….82-87.  *     24 hr trend…..On average up 10 degrees.  * Min humidity:  *     4000 feet…….10-15 percent.  *     24 hr trend…..Little change.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Northeast winds around 10 mph shifting to the        southeast in the afternoon.  *     10000 ft msl….South 20 to 30 mph increasing to 25 to 35 mph in        the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..4.  * Mixing height…….7700 ft agl.  * Transport winds…..Light winds becoming south 15 to 20 knots in    the afternoon.  * Ventilation………Excellent.  .TUESDAY NIGHT…  * Sky/Weather………Clear.  * Min temperature:  *     4000 feet…….46-51.  *     24 hr trend…..On average up 4 degrees.  * Max humidity:  *     4000 feet…….45-50 percent.  *     24 hr trend…..On average up 19 percent.  * 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 25 to 35 mph increasing to 35 to 45 mph        after midnight.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.  .WEDNESDAY…  * Sky/Weather………Sunny.  * Max temperature:  *     4000 feet…….80-85.  *     24 hr trend…..On average down 2 degrees.  * Min humidity:  *     4000 feet…….8-14 percent.  *     24 hr trend…..Little change.  * Wind (slope/valley=20 ft, 10 min avg):  *     Slope/valley….Northeast winds up to 10 mph.  *     10000 ft msl….Southwest 25 to 35 mph decreasing to 15 to 25 mph        in the afternoon.  * CWR (>= 0.10 in)….0 percent.  * LAL……………..1.  * Haines Index……..5.  * Mixing height…….6300 ft agl.  * Transport winds…..Light winds.  * Ventilation………Fair.

 

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

LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ247/CAZ249):                                                   ANDLOS ANGELES COUNTY SAN FERNANDO VALLEY:.TUESDAY…  Sky/weather………Partly cloudy except areas of morning low                      clouds and fog.  Max temperature…..72-79.     24 hr trend……Little change.  Min humidity……..50-70 percent.     24 hr trend……Up 9.  20-foot winds…….Southeast 5-10 mph becoming south 6-12 mph with                      local gusts to 20 mph in the afternoon.  Marine layer……..3500 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .TUESDAY NIGHT…  Sky/weather………Mostly clear then becoming mostly cloudy.  Min temperature…..50-60.  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.  .WEDNESDAY…  Sky/weather………Mostly cloudy then becoming sunny.  Max temperature…..78-84.  Min humidity……..20-40 percent.  20-foot winds…….North to northeast 6-12 mph becoming southeast to                      southwest 6-12 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. SANTA MONICA MOUNTAINS RECREATIONAL AREA:.TUESDAY…  Sky/weather………Partly cloudy except areas of morning low clouds and fog.  Max temperature…..70-77.     24 hr trend……Little change.  Min humidity……..45-60 percent.     24 hr trend……Little change.  20-foot winds…….      Valleys/lwr slopes…Southeast 6-12 mph becoming south 6-12 mph with local                           canyon gusts to 25 mph in the afternoon.      Ridges/upr slopes….Southeast 6-12 mph becoming south 6-12 mph with local                           gusts to 20 mph in the afternoon.  Marine layer……..3500 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .TUESDAY NIGHT…  Sky/weather………Partly cloudy then becoming mostly clear.  Min temperature…..51-59 except 46-48 colder valleys.  Max humidity……..80-100 percent.  20-foot winds…….      Valleys/lwr slopes…South 6-12 mph with local canyon gusts to 25 mph                           early in the evening becoming variable 3-6 mph.      Ridges/upr slopes….South 6-12 mph with gusts to 20 mph in the evening                           becoming north.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY…  Sky/weather………Mostly sunny.  Max temperature…..75-83.  Min humidity……..25-40 percent except 40-50 percent higher peaks.  20-foot winds…….      Valleys/lwr slopes…North 6-12 mph becoming southwest with local gusts                           to 20 mph late in the afternoon.      Ridges/upr slopes….North 6-12 mph with gusts to 20 mph becoming                           northwest in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. SANTA CLARITA VALLEY:.TUESDAY…  Sky/weather………Partly cloudy except areas of morning low                      clouds and fog.  Max temperature…..72-79.     24 hr trend……Little change.  Min humidity……..40-60 percent.     24 hr trend……Up 9.  20-foot winds…….Southeast 5-10 mph becoming south 6-12 mph with                      gusts to 20 mph in the afternoon.  Marine layer……..3500 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .TUESDAY NIGHT…  Sky/weather………Mostly clear.  Min temperature…..48-56 except 43-45 in the Ojai Valley.  Max humidity……..80-100 percent.  20-foot winds…….Southwest 6-12 with gusts to 20 mph early becoming                      northeast 5-10 mph late.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY…  Sky/weather………Sunny.  Max temperature…..72-82.  Min humidity……..15-30 percent.  20-foot winds…….Northeast 6-12 mph with local gusts to 20 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent. ANGELES NATIONAL FOREST (CAZ253):.TUESDAY…  Sky/weather………Mostly sunny except patchy morning low clouds                      and fog on the coastal slopes.  Max temperature…..57-65 except 67-76 lower interior slopes.     24 hr trend……Little change.  Min humidity……..50-70 percent except 15-25 percent higher peaks                      and warmer valleys.     24 hr trend……Up 12.  20-foot winds…….      Valleys/lwr slopes…Southwest 6-12 mph with gusts to 20 mph becoming 8-15 mph                           with gusts to 25 mph in the afternoon.      Ridges/upr slopes….Southwest 6-12 mph with gusts to 20 mph becoming 10-20 mph                           with gusts to 30 mph in the afternoon.  Marine layer……..3500 ft asl.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .TUESDAY NIGHT…  Sky/weather………Mostly clear.  Min temperature…..44-53 low elevations to 34-42 colder valleys                      and peaks.  Max humidity……..30-50 percent except 80-100 percent colder valleys.  20-foot winds…….      Valleys/lwr slopes…Northwest 8-15 mph with gusts to 25 mph in the evening                           becoming north 6-12 mph with local gusts to 20 mph.      Ridges/upr slopes….West 10-20 mph with gusts to 30 mph in the evening                         becoming northwest 8-15 mph with gusts to 25 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY…  Sky/weather………Sunny.  Max temperature…..70-79 low elevations to 60-68 higher elevations.  Min humidity……..20-40 percent except 5-15 percent higher peaks                      and warmer valleys.  20-foot winds…….      Valleys/lwr slopes…Northeast 6-12 mph with gusts to 20 mph.      Ridges/upr slopes….Northwest 8-15 mph with gusts to 25 mph becoming                           northeast 6-12 mph with gusts to 20 mph in the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. ANTELOPE VALLEY (CAZ259):TUESDAY…  Sky/weather………Sunny.  Max temperature…..82-79.     24 hr trend……Little change.  Min humidity……..20-30 percent.     24 hr trend……Up 10.  20-foot winds…….Southwest 6-12 mph increasing to 10-20 mph with gusts to 30 mph                      in the afternoon.  Marine layer……..None.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .TUESDAY NIGHT…  Sky/weather………Clear.  Min temperature…..42-49.  Max humidity……..60-75 percent except 45-55 percent in the hills.  20-foot winds…….Southwest 10-20 mph with gusts to 30 mph in the evening becoming                      north 6-12 mph with local gusts to 20 mph.  LAL……………..1.  CWR (>0.10 IN)……0 percent.  .WEDNESDAY…  Sky/weather………Sunny.  Max temperature…..74-82.  Min humidity……..8-15 percent.  20-foot winds…….Variable 3-8 mph becoming northeast 6-12 mph with local gusts                      to 20 mph by the afternoon.  LAL……………..1.  CWR (>0.10 IN)……0 percent. KERN CO. DESERTS (CAZ298):.TUESDAY…  Sky/weather………Sunny.  MAX TEMPERATURE…..71-76.     24 HR TREND……Down 1-3 degrees.  MIN HUMIDITY……..17-27 percent.     24 HR TREND……Up 4-10 percent.  20-FOOT WINDS…….Northwest 3-8 mph in the early morning shifting                      to the southeast 4-9 mph by afternoon.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….9000 ft AGL.  TRANSPORT WINDS…..West around 5 mph in the morning increasing to                      southwest around 20 mph in the afternoon.  CHC WETTING RAIN….0 percent.  .TUESDAY NIGHT…  Sky/weather………Clear.  MIN TEMPERATURE…..44-49.     24 HR TREND……Down 2-4 degrees.  MAX HUMIDITY……..53-63 percent.     24 HR TREND……Up 4-10 percent.  20-FOOT WINDS…….Southwest 4-12 mph in the early evening                      shifting to the west 3-8 mph.  LAL……………..1.  CHC WETTING RAIN….0 percent.  .WEDNESDAY…  Sky/weather………Sunny.  MAX TEMPERATURE…..73-78.     24 HR TREND……Up 1-3 degrees.  MIN HUMIDITY……..11-21 percent.     24 HR TREND……Down 3-9 percent.  20-FOOT WINDS…….West 3-8 mph in the early morning shifting to                      the east 3-5 mph by afternoon.  LAL……………..1.  VENTILATION………Good.  Mixing height…….6500 ft AGL.  TRANSPORT WINDS…..North around 5 mph.  CHC WETTING RAIN….0 percent. TEHACHAPI:.TUESDAY…  Sky/weather………Sunny.  Max temperature…..     5000 FEET……..63-68.     24 HR TREND……Little change.  MIN HUMIDITY……..     5000 FEET……..14-24 percent.     24 HR TREND……Little change.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Easterly 3-8 mph.     RIDGES………..South 4-9 mph.  LAL……………..1.  VENTILATION………Excellent.  Mixing height…….8500 ft AGL.  TRANSPORT WINDS…..Southwest around 5 mph in the morning                      increasing to around 15 mph in the afternoon.  CHC WETTING RAIN….0 percent.  .TUESDAY NIGHT…  Sky/weather………Clear.  Min temperature….     5000 FEET……..39-44.     24 HR TREND……Down 1-3 degrees.  MAX HUMIDITY……..     5000 FEET……..59-69 percent.     24 HR TREND……Up 7-13 percent.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Westerly 3-8 mph.     RIDGES………..Southwest 3-8 mph in the early evening shifting                      to the northwest 4-11 mph.  LAL……………..1.  CHC WETTING RAIN….0 percent.  .WEDNESDAY…  Sky/weather………Sunny.  Max temperature…..     5000 FEET……..65-70.     24 HR TREND……Little change.  MIN HUMIDITY……..     5000 FEET……..13-23 percent.     24 HR TREND……Little change.  WIND – 20 FOOT (10 MINUTE AVERAGE)     SLOPES………..Westerly 3-8 mph.     RIDGES………..Northwest 4-9 mph in the early morning shifting                      to the west 3-6 mph by afternoon.  LAL……………..1.  VENTILATION………Fair.  Mixing height…….6100 ft AGL.  TRANSPORT WINDS…..Northeast around 5 mph in the morning shifting                      to the northwest in the afternoon.  CHC WETTING RAIN….0 percent. ORANGE CO. (ANAHEIM):.TUESDAY…Mostly cloudy in the morning…becoming partly cloudy.  Patchy drizzle in the morning. Highs around 76. Light winds.  .TUESDAY NIGHT…Partly cloudy. Lows 52 to 59. Light winds.  .WEDNESDAY…Mostly cloudy in the morning…becoming sunny.  Patchy fog in the morning. Highs 76 to 81. Light winds.  .WEDNESDAY NIGHT…Mostly clear in the evening…becoming partly  cloudy. Patchy fog overnight. Lows 50 to 56. Light winds. SAN DIEGO COAST (SAN DIEGO):TUESDAY…Mostly cloudy in the morning…becoming partly cloudy.  Patchy drizzle in the morning. Highs 72 to 77. Light winds.  .TUESDAY NIGHT…Partly cloudy. Lows 53 to 61. Light winds.  .WEDNESDAY…Mostly cloudy in the morning…becoming mostly  sunny. Highs 70 to 75 near the coast to 76 inland. Light winds  becoming west 15 mph in the afternoon.  .WEDNESDAY NIGHT…Mostly clear in the evening…becoming partly  cloudy. Patchy fog overnight. Lows 51 to 59. Light winds.====================================================================THIS DAY IN WEATHER HISTORY:

1987: It was 108° in LA on this day and on 10/4, the record high temperature for October. On this day unofficial readings of 109° in El Cajon and 106° in Chula Vista, Fallbrook and Santee were reported. It was officially 104° in San Diego and Vista. The Vista reading represents a monthly high temperature record.

 

1980: It was 101° in Victorville, the highest temperature on record for October. This also occurred two days later on 10/5. It was 115° in Indio and 113° in Borrego Springs. Each is the highest temperature on record for October, and each also occurred the previous day on 10/2. A 103 degree reading in Campo set the monthly high temperature record for October.

 

1912: A dry spell began in Bagdad on this day lasting 767 days and ended on 11/9/1914. (Southern Pacific RR employees kept this debated record). Strangely, on this same day Palm Springs recorded record rainfall.=========================================================================TROPICAL EAST PACIFIC REPORT:

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

 

Showers and thunderstorms associated with an area of low pressure

located near the Gulf of Tehuantepec have shown some signs of

organization today. Environmental conditions are expected to be

conducive for some additional development over the next couple of

days while the system moves slowly west-northwestward or westward.

* Formation chance through 48 hours…medium…40 percent.

* Formation chance through 5 days…medium…60 percent.

 

Monthly Tropical Weather Summary

NWS National Hurricane Center Miami FL

800 AM PDT Sun Oct 01 2017

 

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

 

Four named storms formed in the eastern North Pacific basin in

September, with three of them becoming a hurricane and one a major

hurricane. Based on a 30-year (1981-2010) climatology, three named

storms typically form in the basin in September, with two of those

becoming hurricanes and one reaching major hurricane intensity.

 

In terms of Accumulated Cyclone Energy (ACE), which measures the

combined strength and duration of tropical storms and hurricanes,

activity in September was less than half of normal. So far in

2017, however, ACE has been above normal.

 

Reports on individual cyclones, when completed, are available at

the National Hurricane Center website at:

hurricanes.gov/data/tcr/index.php?season=2017&basin=epac

 

Summary Table

 

Name                 Dates         Max Wind (mph)

—————————————————

TS Adrian           9-11 May            45

TS Beatriz     31 May- 2 Jun            45*

TS Calvin         11-13 Jun            45*

H Dora            25-28 Jun            90

MH Eugene           7-12 Jul           115

MH Fernanda       12-22 Jul           145

TS Greg           17-26 Jul            60

TD Eight-E         18-20 Jul            35

H Hilary          21-30 Jul           105

H Irwin       22 Jul- 1 Aug            90

TD Eleven-E         4- 5 Aug            35

TS Jova           12-13 Aug            40

MH Kenneth         18-23 Aug           130

TS Lidia       31 Aug- 3 Sep            65

H Max             13-15 Sep            80

H Norma           14-20 Sep            75

MH Otis           11-19 Sep           115

TS Pilar           23-25 Sep            40

—————————————————

  

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

CURRENT WEATHER @ HESP. @0655 hrs TEMP:490 RH:87% WIND: CALM0.00” RF @ HESP. STA.SINCE JUL 1st/20 Yr Avg: 7.12”  : MONTH:0.00”   YTD S/F: 0.00” /

————————————————————————————–

FIRES: UPDATED

 

National Preparedness Level 2

 

Initial attack activity: Light (103) new fires
New large incidents: 1
Large fires contained: 1
Uncontained large fires:** 6
Area Command teams committed: 0
NIMOs committed: 0
Type 1 IMTs committed: 1
Type 2 IMTs committed: 9

 

 

Active Incident Resource Summary
GACC Fires Cumulative Acres Crews Engines Helicopters Total Personnel
AICC 0 0 0 0 0 0
NWCC 17 665,327 24 53 10 1,674
ONCC 10 225,807 29 74 7 1,305
OSCC 4 10,063 12 21 3 436
NRCC 6 293,899 2 14 1 309
GBCC 2 30,599 2 3 0 57
SWCC 3 4,540 1 0 0 31
RMCC 2 2,940 0 0 0 6
EACC 0 0 0 0 0 0
SACC 2 310 0 2 0 10
Total 46 1,233,487 70 167 21 3,828

 

Southern California Area (PL 3)

New fires: 12
New large incidents: 0
Uncontained large fires: 2

 

SOUTH OPS INFO:

Federal Incidents Lion, Vegetation Fire, Tulare County, Update Lion Creek, Golden Trout Wilderness x 11 miles northeast of Camp Nelson Federal DPA, FRA, Sequoia National Forest

  • 2,000 acres grass, brush and timber, 0% contained
  • Minimal fire behavior
  • Structures threatened
  • Defensive firing and aerial ignitions will continue to be used to moderate the chances for extreme fire behavior

 State Incidents Rucker, Vegetation Fire, Santa Barbra County, Update Rucker Rd X Purisima Rd, 2 miles northeast of Lompoc Local DPA, SRA, Contract County

  • 444 acres grass and brush, 90% contained
  • Minimal fire behavior

Unified Command Canyon, Vegetation Fire, Orange County, Update 91 Freeway x Coal Canyon Rd. Local DPA, SRA/FRA, Riverside Unit/ Cleveland NF/ City of Anaheim

  • 2,662 acres grass and brush, 95% contained
  • Unified Command CAL FIRE, USFS, and OCFA
  • Minimal fire behavior

 

Northern California Area (PL 3)

New fires: 13
New large incidents: 0
Uncontained large fires: 1

 

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