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Wednesday, October 24, 2012

URGENT - FIRE WEATHER - SANTA ANA EVENT - MAP

 RED FLAG WARNING IN EFFECT THURSDAY NIGHT THROUGH SATURDAY AFTERNOON FOR GUSTY NORTHEAST WINDS AND LOW HUMIDITIES FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES

RED FLAG WARNING

RED FLAG WARNING 

WHERE: THE COASTAL AREAS OF VENTURA COUNTY AND LOS ANGELES COUNTY FROM MALIBU THROUGH THE HOLLYWOOD HILLS. 
SANTA CLARITA VALLEY - VENTURA COUNTY INTERIOR VALLEYS - VENTURA COUNTY COASTAL VALLEYS - LOS ANGELES COUNTY - SAN FERNANDO VALLEY
WHEN: RED FLAG WARNING IN EFFECT FROM 3 AM TO 6 PM PDT FRIDAY.
WHY: FOR GUSTY NORTHEAST WINDS AND LOW HUMIDITIES. GUSTY NORTHERLY WINDS WILL BRING HEIGHTENED FIRE WEATHER CONCERNS TO LOWER ELEVATION AREAS THROUGH THURSDAY AFTERNOON.
THE WINDS SHOULD THEN SHIFT TO THE NORTHEAST THURSDAY NIGHT. 
BRINGING THE FIRST WIDESPREAD SANTA ANA EVENT OF THE SEASON.
FIRE WEATHER MAP
 THE PEAK OF THE WINDS ARE EXPECTED EARLY FRIDAY THEN SHOULD WEAKEN SOME FRIDAY NIGHT BUT REMAIN BREEZY THROUGH SATURDAY.
WHAT: LOWEST HUMIDITIES ARE EXPECTED TO OCCUR FRIDAY AND SATURDAY AFTERNOON WHEN WIDESPREAD SINGLE DIGIT HUMIDITIES ARE FORECASTED WHILE OVERNIGHT HUMIDITY RECOVERIES WILL BE POOR AND MOSTLY UNDER 30 PERCENT.
THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 
* WINDS: NORTH TO NORTHEAST 20 TO 30 MPH WITH GUSTS TO 50 MPH THURSDAY NIGHT THROUGH FRIDAY WEAKENING TO 15 TO 25 MPH WITH GUSTS TO 35 MPH FRIDAY NIGHT THROUGH SATURDAY. ISOLATED GUSTS TO 60 MPH POSSIBLE IN THE HILLS ON FRIDAY. 
* RELATIVE HUMIDITY: LOWERING TO 5 TO 10 PERCENT EACH AFTERNOON WITH POOR OVERNIGHT RECOVERIES GENERALLY 10 TO 25 PERCENT. 
* IMPACTS: THE COMBINATION OF GUSTY NORTHEAST WINDS, LOW HUMIDITY, AND CRITICALLY DRY FUELS WILL CREATE AN ENVIRONMENT FAVORABLE FOR RAPID FIRE GROWTH.

IF FIRE IGNITION OCCURS THE COMBINATION OF CRITICAL FIRE WEATHER CONDITIONS AND VERY DRY FUELS WILL CREATE THE POTENTIAL TO BRING RAPID SPREAD OF WILDFIRE.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXTREME FIRE BEHAVIOR. PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. 

    CFN - California Fire News 2012 
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****REMINDER**** Every fire has the ability to be catastrophic. The wildland fire management environment has profoundly changed. Growing numbers of communities, across the nation, are experiencing longer fire seasons; more frequent, bigger, and more severe, fires are a real threat. Be careful with all campfires and equipment.
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