Alert archive / California / Flash Flood Warnings in 2012
Flash Flood Warning 5, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Jul 30, 2012, 2:11 PM PDT for San Diego County, California. It was in force for 64 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 30, 2012, 2:11 PM PDT (21:11 UTC)
- Expired
- Jul 30, 2012, 3:15 PM PDT
- In force
- 64 min
- 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), 59 km from the middle of the area, began a volume at 21:14 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 30, 2:30 PM PDT | FLASH FLOOD | 9 Ne Campo, CA | LA POSTA ROAD FLOODED NEAR I-8. LAW ENFORCEMENT ON SCENE. |
| Jul 30, 3:03 PM PDT | HEAVY RAIN 1.66 | 8 N Campo, CA | ACCUMULATED 1 HOUR PRECIPITATION. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 9.2 hours before the alert went out and 70 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
- 1583 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
027 WGUS56 KSGX 302111 FFWSGX CAC073-302215- /O.NEW.KSGX.FF.W.0005.120730T2111Z-120730T2215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 211 PM PDT MON JUL 30 2012 THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL SAN DIEGO COUNTY BETWEEN MORENA VILLAGE AND LIVE OAK SPRINGS... * UNTIL 315 PM PDT * AT 200 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN AND POSSIBLE FLASH FLOODING EAST OF MORENA VILLAGE...JUST SOUTH OF INTERSTATE 8. * THE STORM WAS NEARLY STATIONARY. LAT...LON 3278 11655 3279 11634 3264 11633 3262 11650 $$ MOEDE
2 follow-up statements
941 WGUS76 KSGX 302134 FFSSGX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 234 PM PDT MON JUL 30 2012 CAC073-302215- /O.CON.KSGX.FF.W.0005.000000T0000Z-120730T2215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAN DIEGO CA- 234 PM PDT MON JUL 30 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM PDT FOR SOUTH CENTRAL SAN DIEGO COUNTY... AT 218 PM PDT...TRAINED WEATHER SPOTTERS REPORTED CONTINUOUS HEAVY RAIN AT CAMPO. VERY HEAVY RAIN WAS IMPACTING INTERSTATE 8 NEAR CAMERON. FLASH FLOODING IS LIKELY ON INTERSTATE 8...OLD HIGHWAY 80 AND KITCHEN CREEK ROAD THROUGH 315 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. && LAT...LON 3278 11655 3279 11634 3264 11633 3262 11650 $$ MOEDE
960 WGUS76 KSGX 302215 FFSSGX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 315 PM PDT MON JUL 30 2012 CAC073-302222- /O.EXP.KSGX.FF.W.0005.000000T0000Z-120730T2215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAN DIEGO CA- 315 PM PDT MON JUL 30 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 315 PM PDT FOR SOUTH CENTRAL SAN DIEGO COUNTY... THE FLASH FLOOD WARNING FOR MORENA VILLAGE AREA INCLUDING INTERSTATE 8...OLD HIGHWAY 80 AND KITCHEN CREEK ROAD WILL EXPIRE AT 315 PM. THE HEAVIEST RAIN HAS DISSIPATED. HOWEVER...RADAR INDICATED MORE MODERATE TO HEAVY RAIN MOVING INTO THE SAME AREA FROM THE NORTH...SO MORE FLASH FLOODING IS POSSIBLE THIS AFTERNOON. LAT...LON 3278 11655 3279 11634 3264 11633 3262 11650 $$ MOEDE
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 10:55 AM PDT | Flash Flood Watch | SGX | Riverside, San Diego | 9 hr |
| Jul 30, 2:54 PM PDT | Flash Flood Warning | SGX | San Diego | 111 min |
| Jul 30, 3:09 PM PDT | Severe Thunderstorm Warning | SGX | San Diego | 51 min |
| Jul 30, 3:59 PM PDT | Flash Flood Warning | SGX | San Diego | 2 hr |
Nearby
Flash Flood Warnings in California, 2012Every flash flood warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.