Alert archive / California / Flash Flood Warnings in 1996
Flash Flood Warning 3, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this flash flood warning at Dec 10, 1996, 1:55 PM PST for Santa Clara County, Santa Cruz County, California. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 10, 1996, 1:55 PM PST (21:55 UTC)
- Expired
- Dec 10, 1996, 4:00 PM PST
- In force
- 2 hr
- Issued by
- NWS San Francisco Bay Area, CA
- Area
- Whole counties
Counties Santa Clara County, CA, Santa Cruz County, CA
The nearest sounding before it
Lompoc (Awos), CA (KLPC), launched 12:00Z, 9.9 hours before the alert went out and 303 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 11 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 564 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSFO 102156 FFWSFO CAC085-087-110000- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN FRANCISCO CA 155 PM PST TUE DEC 10 1996 THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 400 PM PST FOR PEOPLE IN THE FOLLOWING LOCATIONSS... IN CENTRAL CALIFORNIA ...WESTERN SANTA CLARA COUNTY...SANTA CRUZ COUNTY THE FLASH FLOOD WARNING FOR SANTA CRUZ AND WESTERN SANTA CLARA COUNTIES HAS BEEN EXTENDED UNTIL 4 PM. STORM TOTAL PRECIPITATION AMOUNTS AS OF 2 PM WERE FROM 2 TO 4 INCHES IN THE VALLEYS AND 5 TO 7 INCHES IN THE SANTA CRUZ MOUNTAINS. ADDITIONAL RAINFALL THIS AFTERNOON SHOULD RANGE FROM HALF AN INCH TO AN INCH. THE SAN LORENZO RIVER...SOQUEL CREEK...AND CORRALITOS CREEK HAVE CRESTED AND ARE SLOWLY RECEEDING. ADDITIONAL RAINFALL THIS AFTERNOON WILL KEEP ALL CREEKS AND RIVERS IN THE WARNING AREA OVER THEIR BANKS. FLOODING ON THE CORRALITOS IS ONE FOOT BELOW FLOODING THAT OCCURED IN 1955 AND IS AT LEAST THREE FEET ABOVE THE MARCH 1995 CREST. SOME TOWNS THAT CONTINUE TO HAVE FLOODING ARE WATSONVILLE...FREEDOM...CAPITOLA...FELTON...BOULDER CREEK...AND SOQUEL. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. J THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. DIAZ/COX
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 7:34 AM PST | Flash Flood Warning | MTR | Santa Clara, Santa Cruz | 4 hr |
| Dec 10, 10:58 AM PST | Flash Flood Warning | MTR | Santa Clara, Santa Cruz | 3 hr |
| Dec 10, 3:55 PM PST | Flash Flood Warning | MTR | Santa Clara, Santa Cruz | 2 hr |
Nearby
Flash Flood Warnings in California, 1996Every flash flood warning in 1996
Sources
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.