Flash Flood Warning 10, NWS San Francisco Bay Area, CA

Issued

Jan 20, 1993, 3:40 PM PST (23:40 UTC)

Expired

Jan 20, 1993, 9:30 PM PST

In force

6 hr

Issued by

NWS San Francisco Bay Area, CA

Area

Whole counties

Counties Napa County, CA, Sonoma County, CA

000 
TTAA00 KSFO 202355 COR
FFWSFO
CAC041-055-097-210530-

BULLETIN - IMMEDIATE BROADCAST REQUESTED 
FLOOD WARNING...COR FOR HEADER
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
340 PM PST WED JAN 20 1993

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A
FLOOD WARNING FOR SMALL STREAMS EFFECTIVE UNTIL 930 PM PST
FOR PEOPLE AND PROPERTY IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL CALIFORNIA 
 
...SONOMA...MARIN COUNTIES AND NAPA COUNTIES...
 
AT 300 PM THIS AFTERNOON..SATELLITE IMAGERY..AND AUTOMATED RAIN GAUGE
REPORTS INDICATE MODERATE RAIN CONTINUING OVER THE NORTHWESTERN BAY
COUNTIES MOUNTAINS WITH LIGHTER RAINS ELSEWHERE. GENERALLY FROM ONE
THIRD OF AN INCH TO ONE INCH HAS BEEN REPORTED IN THE LAST TWO HOURS.
THE RAIN SHOULD BEGIN TAPERING OFF LATER THIS EVENING.

WITH SMALL STREAM FLOODING HAVING ALREADY OCCURRED TODAY AND EXPECTED
TO CONTINUE THROUGH THIS EVENING...A FLOOD WARNING FOR SMALL STREAMS
IS BEING ISSUED TO REPLACE THE FLASH FLOOD WARNING AND WATCHES ISSUED
EARLIER TODAY. THE STREAMS OF CONCERN ARE OFF THE MAIN STEMS OF THE 
THE RUSSIAN AND NAPA RIVERS...AND OTHER SMALL STREAMS IN THIS AREA.
CORTE MADERA CREEK AT ROSS WAS A HALF FOOT ABOVE FLOOD STAGE AT 340
PM. THE STREAMS AND CREEKS OF SONOMA...MARIN AND NAPA COUNTIES ARE
BEGINNING TO RISE AGAIN DUE TO THE INCREASED RAINFALL AND THE
CONTINUED RISING OF THE MAIN RIVERS.

A FLOOD WARNING FOR SMALL STREAMS MEANS THAT FLOODING IS OCCURRING OR
IS IMMINENT.  DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS
IN AN AUTOMOBILE IF WATER COVERS THE ROADWAY.  NEVER TRY TO CROSS A
FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.  TO ESCAPE RISING
WATER...MOVE UP TO HIGHER GROUND IMMEDIATELY.  MINOR MUDSLIDE AND
DEBRIS FLOWS HAVE BEEN REPORTED. PLEASE BE AWARE OF THIS POTENTIALLY
DANGEROUS SITUATION.
 
LISTEN TO NATIONAL WEATHER SERVICE RADIO ON FREQUENCIES 162.55
OR 162.40 MHZ...OR YOUR LOCAL TELEVISION OR RADIO STATION FOR 
FURTHER INFORMATION.

DLR/GB

Flash Flood Warnings in California, 1993Every flash flood warning in 1993

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.