FIRE WEATHER 11/18/19

DAILY FIRE WEATHER & FIRE INFO
ALL UNITS From:
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Date: 11/18/19

SKYWARN: NORMAL
NETS ON WED NIGHT @1900 HEAPS PK./WX
SKYWARN NET TUESDAY @ 1900 HRS TABLE Mt.
BRIEFS TABLE MT. ON SUN @ 1800 HRS

DAYS NO R.F. @ STA.:181

National Preparedness Level (PL 1 )

Southern California Area Preparedness Level: (PL 2 )

Northern California Area Preparedness Level (PL 2 )

GREEN = PL: 1 BLUE – PL:2 YELLOW = PL:3 ORANGE = PL:4 RED = PL: 5
==============================================================================
SYNOP: (NWS SAN DIEGO)
A dry atmosphere will remain in place today with weak winds and well above average high temperatures. Lowest daytime humidity for inland areas will fall to around 10 percent today. A cold low pressure system from the north will strengthen the onshore flow on Tuesday and bring significant cooling for Tuesday and Wednesday. Periods of showers will develop Tuesday night and continue into Thursday bringing widespread wetting precipitation for Wednesday and Thursday. Drying with a gradual warming trend for the end of the
week into next weekend.

First Winter Storm of the Season
Confidence Confidence moderate in both details and timing.

Details – What: Rain, mountain snow (starting at 8,000 ft Tuesday night and lowering to 6,000 ft Wednesday night), mountain fog, and gusty winds in the mountains and deserts.

Low risk of flash flooding at this time.

Preliminary precipitation amounts:

• San Diego County coast and valleys: 1.00-1.50 inches
• Coastal mountain slopes: 1.0-1.75 inches
• Orange County and the Inland Empire: 0.50-1.00 inches
• High Desert: 0.25-0.50 inches
• Lower Desert: 0.10-0.25 inches

Several inches of snow possible. Preliminary forecast amounts:

• 6000-7000 FT: 2-5 inches
• 7000 FT+: 6-10 inches

– Where: All of Southern California.

– When: Showers possible on Tuesday, especially San Diego County. Precipitation increases area wide Tuesday night with the brunt occurring late Tuesday night through Thursday morning.

Highs today in the 60s in the mountains to the lower 90s across Southern CA. Temperatures will be 10-15 degrees cooler Tuesday, and by Wednesday and Thursday, mountain highs will only be in the 40s with 60s common at lower elevations.

· Local northeast winds of 10-20 mph with gusts to 25 mph this morning. Offshore winds ending by noon.

· Minimum RH will remain in the single digits over Southern CA today. Look for minimums to climb steeply the rest of the week with excellent nighttime recovery beginning Tuesday night.

· No additional rainfall after this week’s system through Thanksgiving.

NWS LAS VEGAS SYNOP– (NORTH & EAST OF COUNTY)
One more day of dry conditions, with Min RH values falling into the single digits for the desert valleys and teens elsewhere. Relatively low wind fields expected should keep fire weather conditions from reaching critical thresholds but elevated levels will linger today given afternoon light breezes.

A major pattern change will bring much needed wetting rains to the region as well as high elevation snows. Higher elevation snow amounts could be significant as well which should significantly improve the fuel situations in those places. Lower elevation areas will be dependent on how much rain occurs this week, but expecting enough rainfall activity to result in at least short term fuel improvement for much of the region. Drier conditions expected to return by the weekend.

DAILY FUELS/FIRE POTENTIAL:
Large fire potential will be elevated today across much of Southern CA due to very warm temperatures and very low RH the past few days. New starts may grow rapidly this morning due to offshore breezes. This afternoon, a return of onshore winds may result in erratic winds and directional shear. After today, cool, humid weather will drop large fire potential to very low levels through the rest of the week. The next period of potential elevated large fire threats may be early next week as fuels dry back out. The rainfall expected this week will likely be insufficient to change fuel moisture much in the long run.

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

NO RATING: Sundowner winds are either not expected, or will not contribute to significant fire activity.

MARGINAL: Upon ignition, fires may grow rapidly.

MODERATE: Upon ignition, fires will grow rapidly and will be difficult to control.

HIGH: Upon ignition, fires will grow very rapidly, will burn intensely, and will be very difficult to control

EXTREME: Upon ignition, fires will have extreme growth, will burn very intensely, and will be uncontrollable.

Zones Nov. 18 Nov. 19 Nov. 20 Nov. 21 Nov. 22 Nov. 23
Zone 1:
LA-Ventura NO RATE NO RATE NO RATE NO RATE NO RATE NO RATE
Zone 2:
Orange-Inland Empire NO RATE NO RATE NO RATE NO RATE NO RATE NO RATE
Zone 3:
San Diego NO RATE NO RATE NO RATE NO RATE NO RATE NO RATE
Zone 4:
Santa Barbara NO RATE NO RATE NO RATE NO RATE NO RATE NO RATE

————————————————————————–
APPLE VALLEY / HESPERIA-VICTOR VALLEY (CAZ260):
MONDAY… Sky/weather………Mostly sunny.
Max temperature…..76 to 81. 24 HR TREND……Up 4 degrees.
Min humidity……..10 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Variable 1 to 3 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

MONDAY NIGHT… Sky/weather………Partly cloudy.
Min temperature…..43 to 53. 24 HR TREND……Up 6 degrees.
Max humidity……..20 to 30 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Variable 2 to 4 mph becoming south around 6 mph after midnight.
CWR (>0.10 IN)……0 percent. LAL……………..1.

TUESDAY… Sky/weather………Mostly cloudy.
Max temperature…..71 to 77. 24 HR TREND……Down 6 degrees.
Min humidity……..15 to 20 percent. 24 HR TREND……Up 5 percent.
WIND (20 FT)……..Winds southwest 6 to 14 mph with gusts to 30 mph.
CWR (>0.10 IN)……6 percent. LAL……………..1.

*WRIGHTWOOD:
Monday
Sunny, with a high near 66. Northeast wind around 5 mph.
Monday Night
Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A chance of showers after 4pm. Increasing clouds, with a high near 58. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tuesday Night
Showers likely, mainly after 10pm. Cloudy, with a low around 40. Chance of precipitation is 70%.

*BIG PINES / WEST WRIGHTWOOD AREA
Monday
Sunny, with a high near 67. East northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 46. South southeast wind 5 to 10 mph becoming southwest in the evening.
Tuesday
A 30 percent chance of showers after 4pm. Partly sunny, with a high near 62. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Showers likely, mainly after 10pm. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.

*PHELAN:
Monday
Sunny, with a high near 73. Calm wind becoming northeast around 5 mph.
Monday Night
Partly cloudy, with a low around 56. South wind 5 to 10 mph.
Tuesday
A chance of showers, mainly after 4pm. Increasing clouds, with a high near 67. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday Night
Showers, mainly after 10pm. Low around 47. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

TRONA (INDIAN WELLS) (CAZ298):
MONDAY… Sky/weather………Sunny.
Max Temperature…..75-80. 24 HR Trend……Little change.
Min Humidity……..12 percent. 24 HR Trend……Little change.
20-Foot Winds…….Northeast to east 4-7 mph.
LAL……………..1. Ventilation………Poor.
Mixing height…….3300 ft AGL. Transport Winds…..Northeast around 5 mph in the morning shifting to the southeast in the afternoon.
Chc Wetting Rain….0 percent.

MONDAY NIGHT… Sky/weather………Mostly clear.
Min Temperature…..46-51. 24 HR Trend……Little change.
Max Humidity……..27-37 percent. 24 HR Trend……Up 3-5 percent.
20-Foot Winds…….West up to 10 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

TUESDAY… Sky/weather………Partly sunny. (high clouds)
Max Temperature…..71-76. 24 HR Trend……Down 3-5 degrees.
Min Humidity……..13-19 percent. 24 HR Trend……Up 3-5 percent.
20-Foot Winds…….Southwest up to 10 mph in the morning increasing to 8-18 mph in the afternoon.
LAL……………..1. Ventilation………Fair.
Mixing height…….2500 ft AGL. Transport Winds…..Southwest 5 to 10 mph.
Chc Wetting Rain….0 percent.

BARSTOW / DAGGETT / BAKER / FT. IRWIN (CAZ228):
.TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….78-83. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….9-12 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Upslope/upvalley 4 to 8 mph.
* 10000 ft msl….North up to 10 mph shifting to the southeast in the afternoon.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TONIGHT… * Sky/Weather………Partly cloudy.
* Min temperature: * Valley floor….46-51. * 24 hr trend…..On average up 4 degrees.
* Max humidity: * Valley floor….24-29 percent. * 24 hr trend…..Little change.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind up to 10 mph.
* 10000 ft msl….South 10 to 15 mph increasing to southwest 15 to 25 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TUESDAY… * Sky/Weather………Partly cloudy. Isolated showers and thunderstorms.
* Max temperature: * Valley floor….76-81. * 24 hr trend…..On average down 2 degrees.
* Min humidity: * Valley floor….11-20 percent. * 24 hr trend…..On average up 5 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….South wind 10 to 15 mph.
* 10000 ft msl….Southwest 20 to 30 mph.
* CWR (>= 0.10 in)….20 percent increasing to 40 percent in the afternoon.
* LAL……………..3. * Haines Index……..5.’

*BAKER:
Monday
Sunny, with a high near 80. Light and variable wind.
Monday Night
Partly cloudy, with a low around 45. Light southeast wind.
Tuesday
A 10 percent chance of showers after 4pm. Increasing clouds, with a high near 78. South wind 5 to 10 mph.
Tuesday Night
Showers likely, mainly after 4am. Cloudy, with a low around 52. Southeast wind 5 to 7 mph. Chance of precipitation is 60%.

SOUTHERN OWENS VALLEY / EAST SIERRA FOOTHILLS (CAZ226):
TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….74-79. * 7000 feet…….65-70. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….10-14 percent. * 7000 feet…….12-20 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….East winds up to 10 mph shifting to the southeast around 10 mph in the afternoon.
* Upper slopes….South winds up to 10 mph.
* 10000 ft msl….West up to 10 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TONIGHT… * Sky/Weather………Partly cloudy.
* Min temperature: * Valley floor….38-43. * 7000 feet…….27-32. * 24 hr trend…..On average up 2 degrees.
* Max humidity: * Valley floor….34-39 percent. * 7000 feet…….32-37 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….South winds up to 10 mph shifting to the west after midnight.
* Upper slopes….West winds 10 to 20 mph. Gusts up to 25 mph increasing to 35 mph after midnight.
* 10000 ft msl….Southwest 10 to 15 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TUESDAY… * Sky/Weather………Partly cloudy.
* Max temperature: * Valley floor….70-75. * 7000 feet….57-62. * 24 hr trend….On average down 3 degrees.
* Min humidity: * Valley floor….13-18 percent. * 7000 feet…17-27 percent. * 24 hr trend…..On average up 4 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Southwest winds 10 to 15 mph.
* Upper slopes….Southwest winds 15 to 20 mph with gusts to around 35 mph.
* 10000 ft msl….Southwest 10 to 15 mph.
* CWR (>= 0.10 in)….5 percent. * LAL……………..1. * Haines Index……..5.

KERN CO. DESERTS (CAZ299):
MONDAY… Sky/weather………Sunny.
Max Temperature…..75-80. 24 HR Trend……Little change.
Min Humidity……..9-15 percent. 24 HR Trend……Little change.
20-Foot Winds…….Northeast to east up to 10 mph.
LAL……………..1. Ventilation………Fair.
Mixing height…….4300 ft AGL. Transport Winds…..Northeast around 5 mph in the morning shifting to the east in the afternoon.
Chc Wetting Rain….0 percent.

MONDAY NIGHT… Sky/weather………Mostly clear.
Min Temperature…..45-50. 24 HR Trend……Little change.
Max Humidity……..32-42 percent. 24 HR Trend……Up 2-4 percent.
20-Foot Winds…….Southwest 5-12 mph.
LAL……………..1. Chc Wetting Rain….0 percent.

TUESDAY… Sky/weather………Partly sunny. (high clouds)
Max Temperature…..70-75. 24 HR Trend……Down 2-8 degrees.
Min Humidity……..14-24 percent. 24 HR Trend……Up 3-9 percent.
20-Foot Winds…….Southwest 5-12 mph in the morning increasing to 12-22 mph during the afternoon.
LAL……………..1. Ventilation………Very good.
Mixing height…….4200 ft AGL. Transport Winds…..Southwest 10 to 15 mph.
Chc Wetting Rain….0 percent.

INLAND EMPIRE (CAZ248):
MONDAY… Sky/weather………Mostly sunny…becoming partly cloudy.
Max temperature…..84 to 89. 24 HR TREND……Up 1 degree.
Min humidity……..10 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Variable 1 to 3 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

MONDAY NIGHT… Sky/weather………Partly cloudy.
Min temperature…..46 to 56. 24 HR TREND……Up 2 degrees.
Max humidity……..45 to 55 percent. 24 HR TREND……Up 10 percent.
WIND (20 FT)……..Variable 1 to 3 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

TUESDAY… Sky/weather………Partly cloudy…becoming mostly cloudy. Slight chance of showers in the afternoon.
Max temperature…..72 to 78. 24 HR TREND……Down 13 degrees.
Min humidity……..25 to 30 percent. 24 HR TREND……Up 20 percent.
WIND (20 FT)……..Winds southwest 6 to 10 mph. Gusts to 20 mph in the afternoon.
CWR (>0.10 IN)……11 percent. LAL……………..1.

*DEVORE:
Monday
Sunny, with a high near 85. North wind 5 to 10 mph becoming south in the afternoon.
Monday Night
Partly cloudy, with a low around 61. Northeast wind around 5 mph.
Tuesday
A chance of showers, mainly after 4pm. Partly sunny, with a high near 74. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers, mainly after 10pm. Low around 55. Chance of precipitation is 80%.

*CHINO HILLS:
Monday
Sunny, with a high near 85. East wind 5 to 10 mph becoming west in the afternoon.
Monday Night
Partly cloudy, with a low around 53. South wind around 5 mph becoming east after midnight.
Tuesday
A chance of showers, mainly after 4pm. Partly sunny, with a high near 73. Light southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers likely, mainly after 10pm. Cloudy, with a low around 50. Chance of precipitation is 70%.

*COLTON:
Monday
Sunny, with a high near 89. Calm wind.
Monday Night
Partly cloudy, with a low around 56. Calm wind.
Tuesday
A chance of showers, mainly after 4pm. Partly sunny, with a high near 78. Light south wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers, mainly after 10pm. Low around 50. Chance of precipitation is 80%.

SAN BERNARDINO N.F. (CAZ255):
MONDAY…Sky/weather………Mostly sunny.
Max temperature…..61 to 71 above 6000 feet to 71 to 81 below 6000 feet. 24 HR TREND……Up 3 degrees.
Min humidity……..10 percent. 24 HR TREND……Down 5 percent.
WIND (20 FT)…….. SLOPES………..Winds east6 mph.
RIDGETOP………Winds east 6 to 8 mph with gusts to 20 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

MONDAY NIGHT… Sky/weather………Partly cloudy.
Min temperature…..30 to 40 above 6000 feet to 44 to 54 below 6000 feet. 24 HR TREND……Up 4 degrees.
Max humidity……..20 to 30 percent. 24 HR TREND……Up 10 percent.
WIND (20 FT)…….. SLOPES………..Winds south 6 to 8 mph. Gusts to 20 mph after midnight.
RIDGETOP………Winds southwest 6 to 10 mph. Gusts to 20 mph after midnight.
CWR (>0.10 IN)……0 percent. LAL……………..1.

TUESDAY… Sky/weather………Mostly cloudy.
Max temperature…..53 to 63 above 6000 feet to 61 to 71 below 6000 feet. 24 HR TREND……Down 5 degrees.
Min humidity……..20 to 25 percent. 24 HR TREND……Up 15 percent.
WIND (20 FT)…….. SLOPES………..Winds south 6 to 15 mph with gusts to 30 mph.
RIDGETOP………Winds southwest 7 to 15 mph with gusts to 30 mph.
CWR (>0.10 IN)……7 percent. LAL……………..1.

*LAKE ARROWHEAD SCHOOL- AREA:
Monday
Sunny, with a high near 68. Northeast wind around 5 mph becoming west in the afternoon.
Monday Night
Partly cloudy, with a low around 50. East wind around 5 mph becoming south in the evening.
Tuesday
A chance of showers after 4pm. Partly sunny, with a high near 60. South wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers likely, mainly after 10pm. Cloudy, with a low around 41. Chance of precipitation is 70%.

*BIG BEAR SCHOOL AREA:
Monday
Sunny, with a high near 66. East wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 31. Southwest wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 59. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
A chance of rain showers before 4am, then rain and snow showers likely. Mostly cloudy, with a low around 26. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

BANNING PASS (CAZ265):
MONDAY… Sky/weather………Mostly sunny…becoming partly cloudy.
Max temperature…..84 to 89. 24 HR TREND……Up 1 degree.
Min humidity……..10 percent. 24 HR TREND……Little change.
WIND (20 FT)……..Winds north 6 to 9 mph becoming southeast in the afternoon. Gusts to 20 mph.
CWR (>0.10 IN)……0 percent. LAL……………..1.

MONDAY NIGHT… Sky/weather………Partly cloudy.
Min temperature…..58 to 64. 24 HR TREND……Up 2 degrees.
Max humidity……..20 to 25 percent. 24 HR TREND……Up 15 percent.
WIND (20 FT)……..Winds west 6 to 8 mph.
CWR (>0.10 IN)……1 percent. LAL……………..1.

TUESDAY… Sky/weather………Partly cloudy.
Max temperature…..76 to 82. 24 HR TREND……Down 8 degrees.
Min humidity……..20 percent. 24 HR TREND……Up 10 percent.
WIND (20 FT)……..Winds south 6 to 12 mph with gusts to 25 mph.
CWR (>0.10 IN)……7 percent. LAL……………..1.

JOSHUA TREE AREA (CAZ230):
TODAY… * Sky/weather…………………Mostly sunny.
* Max Temperature……………..71-82. * 24 hr trend………………Little change.
* Min Humidity………………..9-14 pct. * 24 hr trend………………Little RH change.
* Winds – 20 foot…Slope/Valley..Northwest 5 to 10 mph in the morning becoming east in the afternoon.
* Winds…10000 FT MSL…………East 10 to 15 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.
* Haines High Level Index………4 low potential for large plume dominated fire growth.

.TONIGHT… * Sky/weather…………………Partly cloudy.
* Min Temperature……………..50-60. * 24 hr trend………………3 degrees warmer.
* Max Humidity………………..25-35 pct. * 24 hr trend………………6 pct wetter.
* Winds – 20 foot…Slope/Valley..Southwest 5 to 15 mph.
* Winds…10000 FT MSL…………South 10 to 20 mph.
* Chance of Precip…………….0 percent. * CWR (>= 0.10 IN)…………….0 percent. * LAL………………………..1.

.TUESDAY… * Sky/weather…………………Partly sunny. Slight chance of showers and thunderstorms in the afternoon.
* Max Temperature……………..66-77. * 24 hr trend………………5 degrees cooler.
* Min Humidity………………..18-24 pct. * 24 hr trend………………11 pct wetter.
* Winds – 20 foot…Slope/Valley..South 10 to 20 mph.
* Winds…10000 FT MSL…………Southwest 15 to 25 mph.
* Chance of Precip…………….0 percent in the morning becoming 20 percent in the afternoon.
* CWR (>= 0.10 IN)…………….10 percent. * LAL………………………..1 in the morning becoming 2 in the afternoon.
* Haines High Level Index………3 very low potential for large plume dominated fire growth.

NEEDLES, RIVER BAT. (CAZ229):
.TODAY… * Sky/Weather………Sunny.
* Max temperature: * Valley floor….81-86. * 24 hr trend…..Little change.
* Min humidity: * Valley floor….7-17 percent. * 24 hr trend…..On average up 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Upslope/upvalley 4 to 8 mph.
* 10000 ft msl….North up to 10 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.
* Mixing height…….3400 ft agl.
* Transport winds…..North around 10 knots in the morning becoming light. * Ventilation………Fair.

.TONIGHT… * Sky/Weather………Partly cloudy.
* Min temperature: * Valley floor….50-55. * 24 hr trend…..On average up 3 degrees.
* Max humidity: * Valley floor….25-30 percent. * 24 hr trend…..On average down 2 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Downslope/downvalley 2 to 5 mph becoming southeast up to 10 mph after midnight.
* 10000 ft msl….South 10 to 15 mph increasing to southwest 20 to 30 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TUESDAY… * Sky/Weather….Partly cloudy then becoming mostly cloudy. Scattered showers and thunderstorms through the day.
* Max temperature: * Valley floor….73-78. * 24 hr trend…..On average down 8 degrees.
* Min humidity: * Valley floor….16-26 percent. * 24 hr trend…..On average up 9 percent.
* Wind (Slope/valley=20 ft, 10 min avg):
* Valley floor….Southeast wind 10 to 15 mph.
* 10000 ft msl….Southwest 25 to 35 mph.
* CWR (>= 0.10 in)….50 percent increasing to 80 percent in the afternoon. * LAL……………..3. * Haines Index……..4.
* Mixing height…….4100 ft agl. * Transport winds…..South around 10 knots. * Ventilation………Good.

STATELINE – CLARK COUNTY BORDER (NVZ465):
TODAY… * Sky/Weather………Sunny.
* Max temperature: * 4000 feet…….75-80. * 24 hr trend…..On average up 2 degrees.
* Min humidity: * 4000 feet…….11-15 percent. * 24 hr trend…..Little change.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Upslope/upvalley 4 to 8 mph.
* 10000 ft msl….West up to 10 mph.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.
* Mixing height…….1900 ft agl. * Transport winds…..Light winds. * Ventilation………Poor.

.TONIGHT… * Sky/Weather………Partly cloudy.
* Min temperature: * 4000 feet…….42-47. * 24 hr trend…..On average up 3 degrees.
* Max humidity: * 4000 feet…….30-35 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.
* 10000 ft msl….Southwest 10 to 15 mph increasing to 20 to 30 mph after midnight.
* CWR (>= 0.10 in)….0 percent. * LAL……………..1. * Haines Index……..5.

.TUESDAY… * Sky/Weather………Partly cloudy. Isolated showers and thunderstorms.
* Max temperature: * 4000 feet…….69-74. * 24 hr trend…..On average down 6 degrees.
* Min humidity: * 4000 feet…….17-23 percent. * 24 hr trend…..On average up 7 percent.
* Wind (slope/valley=20 ft, 10 min avg):
* Slope/valley….Southeast winds up to 10 mph.
* 10000 ft msl….Southwest 30 to 40 mph.
* CWR (>= 0.10 in)….5 percent increasing to 40 percent in the afternoon. * LAL……………..3.
* Haines Index……..5. * Mixing height…….6300 ft agl. * Transport winds…..Light winds. * Ventilation………Fair.

*La Jolla CA
Monday
Increasing clouds, with a high near 75. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 59. Southeast wind around 5 mph.
Tuesday
A chance of showers after 11am. Partly sunny, with a high near 66. South wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers, mainly after 11pm. Low around 56. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

*Poway CA
Monday
Increasing clouds, with a high near 88. Calm wind becoming west around 5 mph.
Monday Night
Partly cloudy, with a low around 56. Calm wind.
Tuesday
A chance of showers after 10am. Partly sunny, with a high near 75. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers, mainly after 10pm. Low around 52. Chance of precipitation is 80%.

*CEDAR CITY Ut.
Monday
Sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 34. Southeast wind 6 to 9 mph.
Tuesday
Partly sunny, with a high near 61. South southwest wind 14 to 17 mph.
Tuesday Night
Rain, mainly after 11pm. The rain could be heavy at times. Low around 36. South southeast wind 11 to 16 mph decreasing to 5 to 10 mph in the evening. Chance of precipitation is 90%.

*************************** L.A COUNTY ********************************
…WIDESPREAD ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS THROUGH MONDAY ACROSS SOUTHWEST CALIFORNIA…

…COLD STORM TO BRING THREAT OF RAIN AND MOUNTAIN SNOW SHOWERS LATE TUESDAY NIGHT THROUGH THURSDAY…
LOS ANGELS CO. SAN GABRIEL VALLEY (CAZ548):
MONDAY… Sky/weather………Sunny.
Max temperature…..85-92. 24 hr trend……Little change.
Min humidity……..8-15 percent. 24 hr trend……Little change.
20-foot winds…….Northeast 6-12 mph becoming southwest in the afternoon.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

MONDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..53-63.
Max humidity……..55-75 percent except 35-45 percent in the hills.
20-foot winds…….Southwest 6-12 mph in the evening then variable 3-6 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

TUESDAY… Sky/weather………Mostly sunny then becoming mostly cloudy.
Max temperature…..69-75.
Min humidity……..30-50 percent.
20-foot winds…….Variable 3-6 mph becoming south 6-12 mph with local gusts to 20 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANGELES NATIONAL FOREST (CAZ254):
.MONDAY… Sky/weather………Sunny.
Max temperature…..76-85 low elevations to 66-74 higher elevations. 24 hr trend……Little change.
Min humidity……..8-15 percent. 24 hr trend……Little change.
20-foot winds……. Valleys/lwr slopes…Northeast 15-25 mph with gusts to 30 mph becoming 8-15 mph with gusts to 20 mph in the afternoon.
Ridges/upr slopes….Northeast 15-25 mph with gusts to 30 mph becoming 8-15 mph with gusts to 20 mph in the afternoon.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

.MONDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..56-64 low elevations to 47-54 colder valleys and peaks.
Max humidity……..20-30 percent.
20-foot winds……. Valleys/lwr slopes…Downslope/downvalley 3-6 mph in the evening becoming southwest 6-12 mph.
Ridges/upr slopes….Downslope 3-6 mph in the evening becoming southwest 6-12 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

.TUESDAY… Sky/weather………Mostly sunny then becoming mostly cloudy.
Max temperature…..68-73 low elevations to 61-66 higher elevations.
Min humidity……..15-25 percent.
20-foot winds……. Valleys/lwr slopes…Southwest 6-12 mph becoming south 15-25 mph with gusts to 35 mph in the afternoon.
Ridges/upr slopes….Southwest 6-12 mph becoming south 15-25 mph with gusts to 35 mph in the afternoon.
LAL……………..1. CWR (>0.10 IN)……0 percent.

ANTELOPE VALLEY (CAZ259):
MONDAY… Sky/weather………Sunny.
Max temperature…..73-81. 24 hr trend……Little change.
Min humidity……..8-12 percent. 24 hr trend……Little change.
20-foot winds…….Northeast 8-15 mph.
Marine layer……..None. LAL……………..1. CWR (>0.10 IN)……0 percent.

MONDAY NIGHT… Sky/weather………Mostly clear.
Min temperature…..39-48 except 53-58 in the hills.
Max humidity……..35-50 percent except 20-30 percent in the hills.
20-foot winds…….Variable 3-6 mph in the evening becoming southwest 6-12 mph.
LAL……………..1. CWR (>0.10 IN)……0 percent.

TUESDAY… Sky/weather………Mostly sunny then becoming mostly cloudy.
Max temperature…..67-77.
Min humidity……..15-20 percent.
20-foot winds…….Southwest 6-12 mph becoming 10-20 mph with gusts to 30 mph in the afternoon. Isolated gusts to 40 mph near Lake Palmdale.
LAL……………..1. CWR (>0.10 IN)……0 percent.

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THIS DAY IN WEATHER HISTORY:
2008: Santa Ana winds blew from 11/15 to 11/19. Winds gusted over 70 mph in the Santa Ana Mountains and over 60 mph in the northern Inland Empire. The Freeway Complex Fire burned from Corona through Chino Hills and Yorba Linda. Due to the fire 40,000 people were evacuated and State Routes 91, 71, and 57 were temporarily closed. Ultimately the fire would burn 30,305 acres, 361 structures and injure 14 firefighters.

1991: Strong onshore flow and mountain wave activity behind a cold front brought strong winds to the deserts. A peak wind gust of 100 mph was estimated in Mojave.

1987: Santa Ana winds buffeted the mountains and valleys.

1986: An early season storm that started on 11/17 and ended on this day brought 1.16 inches of rain to San Diego, more rain that falls in a normal entire November. Other totals: Montgomery Field 1.49 inches, 1.21 inches at Mt. Laguna, 1.07 inches at Miramar, 1.03 inches in Oceanside and 0.41 inch in Chula Vista. Numerous traffic accidents and a few power outages resulted. The San Diego River flooded causing many road closures in Mission Valley. Street flooding occurred in North Park, Midway, and in Encinitas. A mudslide blocked Malibu Canyon road. A traffic accident claimed two lives in LA.

1973: A winter storm brought winds and strong thunderstorms to the region. Up to ten inches of snow fell in the local mountains and marble size hail was reported in Hollywood.

1967: A moist subtropical storm that started on this day ended on 11/21. 14+ inches of precipitation fell in the mountains above LA, 7.96 inches fell in LA. Flooding was called the “worst since 1934.” Two were killed. Flash flooding and mud slides resulted. 400 were stranded in the mountains due to closed highways.

1964: A potent winter storm dumped 22 inches of snow on Big Bear Lake in 24 hours (a November record), bringing the town’s two-day snowfall to 38 inches. In Victorville 9.5 inches fell setting a November record.

1958: Alpine’s morning low dipped to 28 °, the lowest value on record for the month. Indio tied a monthly record with a reading of 23 °.

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TROPICAL EAST PACIFIC REPORT:
For the eastern North Pacific…east of 140 degrees west longitude:

The National Hurricane Center is issuing advisories on Tropical Depression Twenty-One-E, located well south of the southern coast of Mexico.

The interaction between the remnants of Raymond and a developing mid- to upper-level trough west of Baja California is expected to bring heavy rainfall to portions of the southern Baja California peninsula later today and tonight. No development of this system is anticipated.

* Formation chance through 48 hours…low…near 0 percent.
* Formation chance through 5 days…low…near 0 percent.

BULLETIN
Tropical Depression Twenty-One-E Advisory Number 7
NWS National Hurricane Center Miami FL EP212019
300 PM CST Sun Nov 17 2019

…DEPRESSION BARELY HOLDING ON AS A TROPICAL CYCLONE…

SUMMARY OF 300 PM CST…2100 UTC…INFORMATION
———————————————-
LOCATION…11.1N 103.9W
ABOUT 480 MI…775 KM SSW OF ZIHUATANEJO MEXICO
MAXIMUM SUSTAINED WINDS…30 MPH…45 KM/H
PRESENT MOVEMENT…WNW OR 295 DEGREES AT 9 MPH…15 KM/H
MINIMUM CENTRAL PRESSURE…1007 MB…29.74 INCHES

WATCHES AND WARNINGS
——————–
There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK
———————-
At 300 PM CST (2100 UTC), the center of Tropical Depression Twenty-One-E was located near latitude 11.1 North, longitude 103.9 West. The depression is moving toward the west-northwest near 9 mph (15 km/h), and this general motion is expected to continue for the next few days.

Maximum sustained winds are near 30 mph (45 km/h) with higher gusts. Little change in strength is forecast, and the depression is expected to either dissipate or degenerate into a remnant low within the next couple of days.

The estimated minimum central pressure is 1007 mb (29.74 inches).

HAZARDS AFFECTING LAND
———————-
None

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CURRENT WEATHER @ HESP. @ 0740 Hrs. TEMP: 510 RH: 30% WIND: NE 4 G 12
0.00” RF @ HESP. STA.SINCE OCT. 1st/20 Yr Avg: 7.12” : MONTH: 0.00” YTD S/F: 0.00” /
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FIRES: UPDATED

National Preparedness Level (PL 1 )

CDF FIRES TO DATE (STATE LANDS SRA)

Number of Fires and Acres:
Interval Fires Acres
January 1, 2019 through November 10, 2019 5,366 128,299
January 1, 2018 through November 10, 2018 5,491 786,456
5-Year Average (same interval) 5,365 404,368
2019 Combined YTD (CALFIRE & US Forest Service)

Southern California Area (PL 2 )

Northern California Area (PL 2 )

The National Weather Service: Sacramento, and San Francisco have issued a Fire Weather Watch for strong winds and Low humidity on extremely dry fuels. This combination will result critical fire weather conditions. The general timeframe for this event starts on Tuesday evening and ends Thursday morning. Numerous Fire weather Zones in the North Ops Region are predicted to be affected.

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