Alert archive / California / Flash Flood Warnings in 1996
Flash Flood Warning 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this flash flood warning at Dec 10, 1996, 10:58 AM PST for Santa Clara County, Santa Cruz County, California. It was in force for 3 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, 10:58 AM PST (18:58 UTC)
- Expired
- Dec 10, 1996, 2:00 PM PST
- In force
- 3 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, 7.0 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 101903 FFWSFO CAC085-087-102200- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN FRANCISCO CA 1058 AM PST TUE DEC 10 1996 THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 200 PM PST FOR PEOPLE IN THE FOLLOWING LOCATIONSS... IN CENTRAL CALIFORNIA ...WESTERN SANTA CLARA COUNTY...SANTA CRUZ COUNTY SMALL CREAKS AND RIVERS IN SANTA CRUZ AND WESTERN SANTA CLARA COUNTY REMAIN WELL OUT OF THEIR BANNKS...THEREFORE THE NATIONAL WEATHER SERVICE HAS EXTENDED THE FLASH FLOOD WARNING UNTIL 2PM. RAINFALL AMOUNTS HAVE BEEN HEAVY OVER THE WARNING AREA WITH 4-6 INCHES COMMON SINCE 4 AM THIS MORNING. RAINFALL AMOUNTS OVER THE NEXT SIX HOURS SHOULD RANGE FROM A HALF INCH TO AND INCH...HOWEVER SWOLLEN CREEKS AND RIVERS WILL TAKE TIME TO DRAIN. SOME OF THE MAJOR CREEKS AND RIVERS THAT ARE WELL OUT OF THEIR BANKS INCLUDE SAN LORENZO RIVER...SOQUEL CREEK...AND CORRALITOS CREEK. SOME TOWNS EFFECTED BY THE FLOODING ARE BOULDER CREEK...FELTON...SCOTTS VALLEY...SANTA CRUZ...SOQUEL...FREEDOM...WATSONVILLE...AND CAPITOLA. 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. COX/DIAZ
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, 1:55 PM PST | Flash Flood Warning | MTR | Santa Clara, Santa Cruz | 2 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.