[californiadisasters] Santa Ana Wind Weather Bulletin (9/29/13)

...POTENTIAL FOR A VERY WARM AND DRY SANTA ANA WIND EVENT WITH     HIGH FIRE DANGER THURSDAY NIGHT THROUGH SATURDAY...    ON THURSDAY...AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL DIG  SOUTHWARD INTO THE GREAT BASIN WHILE AN UPPER LEVEL RIDGE OF HIGH  PRESSURE BUILDS OFF THE WEST COAST. INITIALLY...DRY NORTHERLY  WINDS WILL IMPACT SAN LUIS OBISPO AND SANTA BARBARA COUNTIES ON  THURSDAY AFTERNOON AND EVENING. AS SURFACE HIGH PRESSURE BUILDS  INTO NEVADA...THE LOW LEVEL FLOW WILL SHIFT TO THE NORTHEAST  ACROSS MUCH OF SOUTHERN CALIFORNIA LATE THURSDAY NIGHT OR FRIDAY  MORNING...WITH GUSTY SANTA ANA WINDS FORECASTED TO PERSIST THROUGH  SATURDAY.    PRELIMINARY INDICATIONS SUGGEST THIS SANTA ANA WIND EVENT COULD BE  SLIGHTLY STRONGER AND DRIER THAN OUR LAST EVENT ON FRIDAY. A PROLONGED  PERIOD OF SINGLE DIGIT HUMIDITIES WITH TEMPERATURES CLIMBING INTO  THE 90S WILL BE POSSIBLE ON FRIDAY AND SATURDAY. THE COMBINATION  OF GUSTY SANTA ANA WINDS WITH VERY LOW HUMIDITIES AND WARM  TEMPERATURES MAY BRING A SIGNIFICANT THREAT OF CRITICAL FIRE  WEATHER CONDITIONS TO SOUTHERN CALIFORNIA THURSDAY NIGHT THROUGH  SATURDAY. EXTREMELY DRY FUEL CONDITIONS IN PLACE WOULD ALLOW FOR  LARGE AND RAPID FIRE GROWTH POTENTIAL IF WINDS AND DRY AIR  DEVELOP AS PROJECTED LATE IN THE WEEK. THE GREATEST FIRE WEATHER  THREAT WILL BE ACROSS VENTURA AND LOS ANGELES COUNTIES WHERE FIRE  WEATHER WATCHES MAY BE ISSUED AS WE DRAW CLOSER TO THE EVENT.    RESIDENTS OF SOUTHWEST CALIFORNIA ARE URGED TO STAY TUNED TO THE LATEST  NATIONAL WEATHER SERVICE STATEMENTS AND WARNINGS ON THIS DEVELOPING  WEATHER SITUATION.    $$    GOMBERG/BOLDT

NWS Los Angeles/Oxnard

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