Alert archive / California / Flash Flood Warnings in 2014
Flash Flood Warning 4, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Feb 28, 2014, 3:18 PM PST for Orange County, Riverside County, California. It was in force for 57 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
- Feb 28, 2014, 3:18 PM PST (23:18 UTC)
- Expired
- Feb 28, 2014, 4:15 PM PST
- In force
- 57 min
- Issued by
- NWS San Diego, CA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Orange County, CA, Riverside County, CA
The radar
The Santa Ana Mts radar (KSOX), 23 km from the middle of the area, began a volume at 23:20 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, 11.3 hours before the alert went out and 99 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
- 708 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 231 m²/s²
- 0-3 km storm-relative helicity
- 400 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
501 WGUS56 KSGX 282318 FFWSGX CAC059-065-010015- /O.NEW.KSGX.FF.W.0004.140228T2318Z-140301T0015Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN DIEGO CA 318 PM PST FRI FEB 28 2014 THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A * FLASH FLOOD WARNING FOR... WEST CENTRAL RIVERSIDE COUNTY IN SOUTHERN CALIFORNIA... EAST CENTRAL ORANGE COUNTY IN SOUTHWEST CALIFORNIA... * UNTIL 415 PM PST * AT 312 PM PST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM HEAVY RAIN 6 MILES WEST OF LAKELAND VILLAGE...OR 12 MILES EAST OF MISSION VIEJO. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THE FALLS FIRE BURN AREA...LAKELAND VILLAGE AND PORTIONS OF WEST LAKE ELSINORE. PRECAUTIONARY/PREPAREDNESS ACTIONS... WATERSHEDS BURNED IN 2013 WITHIN THE FALLS BURN AREA ARE PARTICULARLY SUSCEPTIBLE TO FLASH FLOODS AND DEBRIS FLOWS FROM THIS RAINSTORM. STRUCTURES...ROADS...TRAILS...AND CAMPGROUNDS LOCATED ALONG DRAINAGES WITHIN OR BELOW THE BURNED BASINS CAN BE IMPACTED BY FLASH FLOODS AND DEBRIS FLOWS. THIS INCLUDES...BUT IS NOT RESTRICTED TO...THOSE NEAR HIGHWAY 74...AND ALL HOMES...ROADS AND STRUCTURES LOCATED BELOW THE BURN AREA ON BOTH SIDES OF GRAND AVENUE BETWEEN MACY STREET AND SANTA ROSA DRIVE. FOR MORE INFORMATION ON POST-FIRE DEBRIS FLOWS AND WHAT TO DO IF YOU LIVE NEAR A RECENTLY BURNED AREA...GO TO LANDSLIDES.USGS.GOV/RESEARCH/WILDFIRE/ 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. && LAT...LON 3375 11759 3371 11737 3357 11730 3352 11754 $$ MM
2 follow-up statements
828 WGUS76 KSGX 282348 FFSSGX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 348 PM PST FRI FEB 28 2014 CAC059-065-010015- /O.CON.KSGX.FF.W.0004.000000T0000Z-140301T0015Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ RIVERSIDE CA-ORANGE CA- 348 PM PST FRI FEB 28 2014 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 PM PST FOR EAST CENTRAL ORANGE AND WEST CENTRAL RIVERSIDE COUNTIES... AT 336 PM PST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE HEAVY RAIN THAT COULD PRODUCE FLASH FLOODING. THIS STORM WAS LOCATED NEAR LAKELAND VILLAGE...OR 2 MILES WEST OF LAKE ELSINORE. AT THIS TIME THE HEAVIEST RAIN WAS MOVING OUT OF THIS AREA. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THE FALLS FIRE BURN AREA...LAKELAND VILLAGE...AND WESTERN PORTIONS OF LAKE ELSINORE. PRECAUTIONARY/PREPAREDNESS ACTIONS... WATERSHEDS BURNED IN 2013 WITHIN THE FALLS BURN AREA ARE PARTICULARLY SUSCEPTIBLE TO FLASH FLOODS AND DEBRIS FLOWS FROM THIS RAINSTORM. STRUCTURES...ROADS...TRAILS...AND CAMPGROUNDS LOCATED ALONG DRAINAGES WITHIN OR BELOW THE BURNED BASINS CAN BE IMPACTED BY FLASH FLOODS AND DEBRIS FLOWS. THIS INCLUDES...BUT IS NOT RESTRICTED TO...THOSE NEAR HIGHWAY 74...AND ALL HOMES...ROADS AND STRUCTURES LOCATED BELOW THE BURN AREA ON BOTH SIDES OF GRAND AVENUE BETWEEN MACY STREET AND SANTA ROSA DRIVE. FOR MORE INFORMATION ON POST-FIRE DEBRIS FLOWS AND WHAT TO DO IF YOU LIVE NEAR A RECENTLY BURNED AREA...GO TO LANDSLIDES.USGS.GOV/RESEARCH/WILDFIRE/ RESIDENTS AND MOTORISTS IN AND BELOW RECENTLY BURNED AREAS SHOULD BE ALERT TO HEAVY MUD AND DEBRIS FLOWS WHICH MAY BLOCK ROADS AND CULVERTS. POTENTIALLY DANGEROUS FLOODING AND PROPERTY LOSS COULD RESULT IN AREAS WHERE RUNOFF IS RESTRICTED OR BLOCKED. && LAT...LON 3375 11759 3371 11737 3357 11730 3352 11754 $$ MM
636 WGUS76 KSGX 010014 FFSSGX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 414 PM PST FRI FEB 28 2014 CAC059-065-010023- /O.EXP.KSGX.FF.W.0004.000000T0000Z-140301T0015Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ RIVERSIDE CA-ORANGE CA- 414 PM PST FRI FEB 28 2014 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 415 PM PST FOR EAST CENTRAL ORANGE AND WEST CENTRAL RIVERSIDE COUNTIES... THE HEAVIEST RAIN MOVED OUT OF THIS REGION...BUT THERE IS STILL SOME RAINFALL AROUND AND THIS AREA REMAINS IN S FLOOD ADVISORY. LAT...LON 3375 11759 3371 11737 3357 11730 3352 11754 $$ MM
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 4:04 AM PST | Flash Flood Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 40 hr |
| Feb 28, 6:19 AM PST | Areal Flood Advisory | SGX | Riverside, San Bernardino | 12 hr |
| Feb 28, 9:19 AM PST | Special Marine Warning | SGX | 41 min | |
| Feb 28, 9:45 AM PST | Areal Flood Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 3 hr |
| Feb 28, 9:59 AM PST | Special Marine Warning | SGX | 61 min | |
| Feb 28, 10:18 AM PST | Areal Flood Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 3 hr |
| Feb 28, 10:37 AM PST | Flash Flood Warning | SGX | Riverside, San Bernardino | 3 hr |
| Feb 28, 10:59 AM PST | Special Marine Warning | SGX | 46 min | |
| Feb 28, 11:07 AM PST | Flash Flood Warning | SGX | Orange, Riverside, San Diego | 53 min |
| Feb 28, 11:59 AM PST | Flash Flood Warning | SGX | Orange, Riverside, San Diego | 61 min |
| Feb 28, 1:18 PM PST | Areal Flood Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 87 min |
| Feb 28, 2:31 PM PST | Areal Flood Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 3 hr |
| Feb 28, 3:06 PM PST | Areal Flood Advisory | SGX | Riverside, San Bernardino, San Diego | 3 hr |
| Feb 28, 3:40 PM PST | Flash Flood Warning | SGX | San Bernardino | 95 min |
| Feb 28, 3:50 PM PST | Special Weather Statement | SGX | San Diego | 55 min |
Nearby
Flash Flood Warnings in California, 2014Every flash flood warning in 2014
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.