Alert archive / California / Flash Flood Warnings in 1992
Flash Flood Warning 5, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Aug 13, 1992, 3:35 PM PDT for Imperial County, California. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Aug 13, 1992, 3:35 PM PDT (22:35 UTC)
- Expired
- Aug 13, 1992, 4:30 PM PDT
- In force
- 55 min
- Issued by
- NWS San Diego, CA
- Area
- Whole counties
County Imperial County, CA
The nearest sounding before it
Yuma Intl Airpor, AZ (KYUM), launched 12:00Z, 10.6 hours before the alert went out and 84 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
- 280 J/kg
- Mixed-layer CIN
- -289 J/kg
- Mixed-layer LCL
- 2459 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 13, 12:30 PM PDT, 3 hours 5 minutes before
CAC073-140130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 1230 PM PDT THU AUG 13 1992 ...THUNDERSTORMS AND HEAVY RAIN IN AND NEAR THE MOUNTAINS... AT 12 NOON RADAR...SATELLITE AND REMOTE RAIN GAUGES INDICATED LOCAL HEAVY RAIN NEAR CUYAMACA AND DULZURA. THE HEAVY RAIN WAS ASSOCIATED WITH THUNDERSTORMS. THUNDERSTORMS WILL CONTINUE IN THE MOUNTAINS OF SAN DIEGO COUNTY THIS AFTERNOON AND EVENING. SOME THUNDERSTORMS WILL DRIFT WEST OF THE MOUNTAINS AND WILL MAINLY AFFECT THE INLAND VALLEYS ...BUT SOME COULD EVEN REACH THE COAST. AT NOON THERE WAS A THUNDERSTORM JUST EAST OF GILLESPIE FIELD. THERE WILL ALSO BE SOME THUNDERSTORMS IN THE DESERTS. SOME THUNDERSTORMS MAY HAVE HEAVY RAIN...STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND SMALL HAIL. IF THREATENING WEATHER APPROACHES SEEK SHELTER INDOORS. AVOID SHELTER UNDER ISOLATED TREES OR OTHER TALL OBJECTS OR IN LOW LYING AREAS SUBJECT TO FLOODING. MOIST UNSTABLE AIR IS FLOWING AROUND HIGH PRESSURE CENTERED OVER NEVADA. THIS WILL CONTINUE SCATTERED THUNDERSTORMS IN THE MOUNTAINS AND DESERTS WITH SOME DRIFTING WEST OF THE MOUNTAINS. THUNDERSTORMS WILL CONTINUE INTO THIS EVENING AND THEN TAPER LATE TONIGHT. ATKIN
Local storm report, Aug 13, 2:07 PM PDT, 1 hour 28 minutes before
STORM REPORT NATIONAL WEATHER SERVICE SAN DIEGO 205 PM PDT THU AUG 13 1992 ...SEVERE THUNDERSTORM AND FLASH FLOODING IN SAN DIEGO COUNTY... PALOMAR MOUNTAIN OBSERVATORY REPORTED THREE QUARTER INCH HAIL AT 2PM PDT THURSDAY ACCOMPANIED BY HEAVY RAIN AND LIGHTNING. HEAVY FLOODING OVER THE HIGHWAY NEAR HIGHWAY 8 AND HIGHWAY 78 JUNCTION. FOREST SERVICE REPORTS HEAVY WATER RUNNING OVER THE HIGHWAYS AT 1:50 PM PDT. NUMEROUS POWER OUTAGES THROUGHOUT SAN DIEGO. SAN DIEGO NWR OUT OF SERVICE 1:45 PM AND STILL OUT DUE TO LIGHTNING STRIKE. SHIGEHARA
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 12:36 PM PDT | Flash Flood Warning | SGX | San Diego | 69 min |
| Aug 13, 1:33 PM PDT | Flash Flood Warning | SGX | San Diego | 57 min |
| Aug 13, 1:33 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 57 min |
| Aug 13, 3:35 PM PDT | Severe Thunderstorm Warning | SGX | Imperial | 55 min |
Nearby
Flash Flood Warnings in California, 1992Every flash flood warning in 1992
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.