Alert archive / California / Flash Flood Warnings in 2004
Flash Flood Warning 72, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Oct 18, 2004, 1:35 PM PDT for San Diego County, California. It was in force for 115 min. 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, 1:35 PM PDT (20:35 UTC)
- Expired
- Oct 18, 2004, 3:30 PM PDT
- In force
- 115 min
- 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), 21 km from the middle of the area, began a volume at 20:37 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, 8.6 hours before the alert went out and 31 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 182036 FFWSGX CAC073-182230- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 135 PM PDT MON OCT 18 2004 THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHERN SAN DIEGO COUNTY IN SOUTHWEST CALIFORNIA THIS INCLUDES THE CITIES OF...SPRING VALLEY...SANTEE...SAN DIEGO... NATIONAL CITY...LEMON GROVE...LAKESIDE...LA MESA...EL CAJON...CHULA VISTA * UNTIL 330 PM PDT * AT 128 PM PDT...FLASH FLOODING WILL OCCUR FROM HEAVY SHOWERS NEAR SAN DIEGO...MOVING SOUTHEAST AT 15 MPH. * THE HEAVY SHOWERS WILL PRODUCE FLASH FLOODING WILL BE NEAR... LEMON GROVE BY 140 PM PDT LA MESA AND SPRING VALLEY BY 145 PM PDT EL CAJON...RANCHO SAN DIEGO AND SANTEE BY 150 PM PDT BOSTONIA BY 155 PM PDT LAKESIDE BY 200 PM PDT ALPINE BY 220 PM PDT 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...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. LAT...LON 3282 11722 3257 11711 3266 11619 3313 11661 $$ 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, 8:19 AM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
| Oct 18, 10:37 AM PDT | Flash Flood Warning | SGX | San Diego | 3 hr |
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.