SPECIAL WEATHER STATEMENT: SIGNIFICANT RAIN EVENT UNDERWAY FOR CALIFORNIA
Warning: A severe storm has impacted California bringing significant rain to wildland fire burn areas.
The threat of mudslides and debris flows remains high in recently burned areas.
Description: LOW PRESSURE OFF THE NORTHERN CALIFORNIA COAST IS PUSHING RAIN BANDS ONTO THE NORTHERN CALIFORNIA COAST BY DAWN SATURDAY WITH A VIGOROUS COLD FRONT EXPECTED TO PASS THE SAN FRANCISCO BAY AREA EARLY SATURDAY AFTERNOON. THE ATMOSPHERE TURNS UNSTABLE WITH THE COLD-FRONTAL PASSAGE AND A CHANCE OF THUNDERSTORMS WILL DEVELOP AT THAT TIME AND CONTINUE INTO THE EVENING HOURS. LOCALLY HEAVY RAINFALL IS EXPECTED WITH THE FRONTAL PASSAGE ACROSS THE AREA BEGINNING IN THE MORNING IN THE NORTH BAY AND EXTENDING THROUGH THE AFTERNOON FOR THE REMAINDER OF THE CENTRAL COAST. LOCALLY GUSTY WINDS AND HEAVY RAIN WILL ACCOMPANY ANY THUNDERSTORMS. HEAVY RAIN MAY CAUSE PONDING ON ROADWAYS...CREATING HAZARDOUS DRIVING CONDITIONS. AS OF 8:00 AM SATURDAY MORNING... RUNNING AND LARGER 24 HOUR RAINFALL AMOUNTS IN THE NORTH BAY MOUNTAINS HAVE BEEN 2.80 INCHES AT VENADO AND 1.35 INCHES AT HAWKEYE. IN THE COASTAL NORTH BAY OLEMA REPORTED 1.04 INCHES. IN THE NORTH BAY INTERIOR RAINFALL AMOUNTS ARE NEAR ONE-THIRD OF AN INCH. AROUND SAN FRANCISCO BAY AND PENINSULA COAST LARGER AMOUNTS ARE NEAR ONE-QUARTER OF AN INCH. IN THE SANTA CRUZ MOUNTAINS BEN LOMOND HAS RECEIVE ABOUT ONE INCH WITH THE LOS GATOS AREA RECEIVING ABOUT ONE-HALF AN INCH OF RAIN.
Instructions: FLASH FLOOD WATCH - CONCERN REMAINS HIGH FOR THE THREAT OF MUDSLIDES DUE TO HEAVY RAIN EXPECTED ON CALIFORNIA BURN AREAS.
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED.
BY MIDNIGHT TONIGHT SHOWERS ARE EXPECTED AND THEN PERSIST INTO SUNDAY MORNING. STAY TUNED TO NOAA WEATHER RADIO OR OTHER FAVORITE NEWS SOURCES FOR UPDATED INFORMATION REGARDING THIS EVENT.
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