Alert archive / California / Flash Flood Warnings in 2007
Flash Flood Warning 2, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Nov 30, 2007, 11:55 AM PST 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
- Nov 30, 2007, 11:55 AM PST (19:55 UTC)
- Expired
- Nov 30, 2007, 2:00 PM PST
- In force
- 2 hr
- Issued by
- NWS San Diego, CA
- Area
- Storm-based polygon
- Flood severity
- None
County San Diego County, CA
The radar
The San Diego radar (KNKX), 46 km from the middle of the area, began a volume at 19:59 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, 7.9 hours before the alert went out and 61 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
- 1466 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 184 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 302002 FFWSGX CAC073-302200- /O.NEW.KSGX.FF.W.0002.071130T1955Z-071130T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 1202 PM PST FRI NOV 30 2007 THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A * FLASH FLOOD WARNING FOR... THE POOMACHA AND RICE FIRE BURN AREAS IN NORTHERN SAN DIEGO COUNTY IN SOUTHWEST CALIFORNIA... * UNTIL 200 PM PST * AT 1155 AM PST...HEAVY RAIN CONTINUED OVER THE WARNED AREA. RAINFALL TOTALS JUST OUTSIDE THE BURN AREA ARE NOW IN EXCESS OF TWO INCHES...WITH 2.13 INCHES OF RAIN REPORTED AT BIRCH HILL. MINOR DEBRIS FLOWS WERE REPORTED AT THE LA JOLLA INDIAN RESRVATION. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PALOMAR MOUNTAIN IN ADDITION TO FLASH FLOODING...RAINFALL IS EXPECTED TO CAUSE DEBRIS FLOWS IN THE RICE AND POOMACHA BURN AREAS...ACCORDING TO THRESHOLDS PROVIDED BY THE USGS. AREAS AFFECTED INCLUDE PALA AND FALLBROOK. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. LAT...LON 3343 11723 3340 11673 3322 11672 3318 11720 TIME...MOT...LOC 1955Z 180DEG 0KT 3327 11695 $$ PURPURA
1 follow-up statement
000 WGUS76 KSGX 302123 FFSSGX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 122 PM PST FRI NOV 30 2007 CAC073-302200- /O.CON.KSGX.FF.W.0002.000000T0000Z-071130T2200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAN DIEGO CA- 122 PM PST FRI NOV 30 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM PST FOR NORTH CENTRAL SAN DIEGO COUNTY... LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PALOMAR MOUNTAIN AND THE LA JOLLA INDIAN RESERVATION AREA. IN ADDITION TO FLASH FLOODING...RAINFALL IS EXPECTED TO CAUSE DEBRIS FLOWS IN THE RICE AND POOMACHA BURN AREAS...ACCORDING TO THRESHOLDS PROVIDED BY THE USGS. AREAS AFFECTED INCLUDE PALA AND FALLBROOK. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. LAT...LON 3343 11723 3340 11673 3322 11672 3318 11720 TIME...MOT...LOC 2122Z 180DEG 0KT 3327 11695 $$ ECC
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 30, 7:45 AM PST | Flash Flood Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 19 hr |
| Nov 30, 9:39 AM PST | Flash Flood Warning | SGX | San Diego | 2 hr |
| Nov 30, 12:47 PM PST | Flash Flood Warning | SGX | San Diego | 118 min |
| Nov 30, 1:10 PM PST | Flash Flood Warning | SGX | Orange | 2 hr |
| Nov 30, 1:34 PM PST | Flash Flood Warning | SGX | San Bernardino | 116 min |
| Nov 30, 3:30 PM PST | Flash Flood Warning | SGX | San Bernardino | 2 hr |
Nearby
Flash Flood Warnings in California, 2007Every flash flood warning in 2007
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.