Tuesday, December 21, 2010

[californiadisasters] Potential for Severe Weather and Flash Flooding



...POTENTIAL FOR STRONG THUNDERSTORMS LATE TONIGHT AND WEDNESDAY ACROSS
SOUTHERN CALIFORNIA...

A VIGOROUS COLD FRONT WILL MOVE INTO SOUTHERN CALIFORNIA LATER TONIGHT
AND WEDNESDAY MORNING...WITH A COLD AND UNSTABLE AIR MASS LINGERING
ACROSS THE REGION THROUGH WEDNESDAY AFTERNOON. THE COMBINATION OF
STRONG DYNAMICS AND INSTABILITY ACROSS THE REGION WILL BRING AN
INCREASING CHANCE OF THUNDERSTORMS ACROSS SOUTHERN CALIFORNIA LATE
TONIGHT INTO WEDNESDAY. SOME OF THESE STORMS COULD BE STRONG...WITH
THE POTENTIAL FOR GUSTY WINDS...HEAVY DOWNPOURS...HAIL...AND DANGEROUS
CLOUD TO GROUND LIGHTNING. CONDITIONS WILL ALSO BE FAVORABLE FOR
ROTATING STORMS LATE TONIGHT THROUGH MIDDAY WEDNESDAY...RESULTING IN
THE POSSIBILITY OF WATERSPOUTS AND ISOLATED SMALL TORNADOS...WITH
THE GREATEST THREAT ACROSS COASTAL VENTURA AND LOS ANGELES
COUNTIES...AND ADJACENT WATERS.

SIGNIFICANT RAINFALL HAS SOAKED SOUTHERN CALIFORNIA DURING THE PAST
WEEK...WITH SOME AREAS REACHING OR APPROACHING SATURATED CONDITIONS.
IF THE STRONGER THUNDERSTORMS DEVELOP...THERE WILL BE THE POTENTIAL
FOR HIGH INTENSITY RAINFALL...BRINGING A SIGNIFICANT RISK FOR
DANGEROUS FLASHING FLOODING AND DEBRIS FLOWS...ESPECIALLY IN RECENT
BURN AREAS. FOR MORE INFORMATION ON THE FLASH FLOODING POTENTIAL...
PLEASE REFER TO THE LATEST FLASH FLOOD WATCH PRODUCT.

RESIDENTS OF SOUTHWEST CALIFORNIA NEED TO STAY TUNED TO THE LATEST
NATIONAL WEATHER SERVICE STATEMENTS AND POSSIBLE WARNINGS DUE TO THE
POTENTIAL FOR SEVERE WEATHER AND FLASH FLOODING.

$$

GOMBERG

Source: http://www.wrh.noaa.gov/total_forecast/getprod.php?wfo=lox&sid=LOX&pil=SPS

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