Alert archive / California / Flash Flood Warnings in 2004
Flash Flood Warning 4, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Feb 2, 2004, 11:55 PM PST for San Bernardino County, California. It was in force for 95 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 2, 2004, 11:55 PM PST (07:55 UTC)
- Expired
- Feb 3, 2004, 1:30 AM PST
- In force
- 95 min
- Issued by
- NWS San Diego, CA
- Area
- Whole counties
County San Bernardino County, CA
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 00:00Z, 7.9 hours before the alert went out and 198 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2983 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 202 m²/s²
- 0-3 km storm-relative helicity
- 385 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS56 KSGX 030757 FFWSGX CAC071-030930- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 1155 PM PST MON FEB 2 2004 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLASH FLOOD WARNING FOR... THE SOUTHWEST SLOPES OF THE MOUNTAINS BELOW 3500 FEET AND ADJACENT VALLEYS OF SOUTHWESTERN SAN BERNARDINO COUNTY IN SOUTHEAST CALIFORNIA * UNTIL 130 AM PST * AT 1150 PM PST...MODERATE TO LOCALLY HEAVY RAINFALL WAS OCCURRING OVER THE SOUTHWESTERN SLOPES OF THE SAN BERNARDINO COUNTY MOUNTAINS. DUE TO PREVIOUS RAINS OVER THE FIRE BURN AREAS...ANY RAINFALL WILL RUN OFF AND CREATE FLOODING AND MUD SLIDES. MUD SLIDES AND ROCK SLIDES ARE EXPECTED WITH THIS STORM. MUD SLIDES AND ROCK SLIDES CAN POTENTIALLY TRAP AND KILL PEOPLE CAUGHT IN THEIR PATH. MUD SLIDES CAN ALSO CAUSE FLOODING WHERE RUNOFF IS RESTRICTED OR BLOCKED. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. $$ LAT...LON 3430 11762 3420 11759 3416 11719 3430 11719 MAXWELL
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 2, 8:00 PM PST | Flash Flood Warning | SGX | Riverside, San Bernardino | 219 days |
| Feb 2, 9:19 PM PST | Flash Flood Warning | SGX | Orange, Riverside, San Diego | 220 days |
| Feb 2, 10:21 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 69 min |
| Feb 2, 10:25 PM PST | Flash Flood Warning | SGX | Riverside, San Diego | 220 days |
| Feb 2, 10:25 PM PST | Special Marine Warning | SGX | 65 min | |
| Feb 2, 11:28 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 47 min |
| Feb 2, 11:29 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 46 min |
| Feb 3, 1:20 AM PST | Flash Flood Warning | SGX | San Bernardino, San Diego | 220 days |
Nearby
Flash Flood Warnings in California, 2004Every flash flood warning in 2004
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.