Alert archive / California / Flash Flood Warnings in 2004
Flash Flood Warning 70, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Oct 18, 2004, 8:19 AM PDT for San Diego 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 outline as issued.
The facts
- Issued
- Oct 18, 2004, 8:19 AM PDT (15:19 UTC)
- Expired
- Oct 18, 2004, 10:30 AM PDT
- In force
- 2 hr
- Issued by
- NWS San Diego, CA
- Area
- Counties, with a storm outline in the text
County San Diego County, CA
The radar
The San Diego radar (KNKX), 28 km from the middle of the area, began a volume at 15:19 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 3.3 hours before the alert went out and 43 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
- 94 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 633 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 84 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 181521 FFWSGX CAC073-181730- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 819 AM PDT MON OCT 18 2004 THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL SAN DIEGO COUNTY IN SOUTHWEST CALIFORNIA THIS INCLUDES THE CITIES OF...VISTA...SAN MARCOS...POWAY... ESCONDIDO...ENCINITAS...CARLSBAD * UNTIL 1030 AM PDT * AT 811 AM PDT...A LINE OF HEAVY SHOWERS WAS NEAR CARLSBAD...MOVING EAST AT 25 MPH. * THE THUNDERSTORM PRODUCING FLASH FLOODING WILL BE NEAR... 9 MILES NORTH OF RANCHO BERNARDO BY 830 AM PDT ESCONDIDO BY 835 AM PDT THE WILD ANIMAL PARK BY 840 AM PDT 8 MILES SOUTH OF PAUMA VALLEY BY 855 AM PDT 9 MILES SOUTH OF PALOMAR MOUNTAIN BY 915 AM PDT LAKE HENSHAW BY 920 AM PDT A FLASH FLOOD WARNING IS IN EFFECT FOR NORTHERN AND CENTRAL SAN DIEGO COUNTY FROM THE MOUNTAINS WEST TO THE COAST. RESIDENTS AND MOTORISTS IN AND BELOW RECENTLY BURNED AREAS SHOULD BE ALERT TO HEAVY MUD AND DEBRIS FLOWS WHICH MAY BLOCK ROADS AND CULVERTS. POTENTIALLY DANGEROUS FLOODING AND PROPERTY LOSS COULD RESULT IN AREAS WHERE RUNOFF IS RESTRICTED OR BLOCKED. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. LAT...LON 3335 11744 3291 11723 3284 11646 3340 11669 $$ ATKIN
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 18, 6:34 AM PDT | Flash Flood Warning | SGX | San Diego | 116 min |
| Oct 18, 10:37 AM PDT | Flash Flood Warning | SGX | San Diego | 3 hr |
| Oct 18, 1:35 PM PDT | Flash Flood Warning | SGX | San Diego | 115 min |
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; radar from the NEXRAD Level II archive.