Alert archive / California / Flash Flood Warnings in 2008
Flash Flood Warning 21, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Feb 14, 2008, 5:04 PM PST for San Diego County, California. It was in force for 86 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 14, 2008, 5:04 PM PST (01:04 UTC)
- Expired
- Feb 14, 2008, 6:30 PM PST
- In force
- 86 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), 13 km from the middle of the area, began a volume at 01:04 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 00:00Z, 1.1 hours before the alert went out and 23 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
- 859 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 34 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 150117
FFWSGX
CAC073-150230-
/O.NEW.KSGX.FF.W.0021.080215T0104Z-080215T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
504 PM PST THU FEB 14 2008
THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL SAN DIEGO COUNTY IN SOUTHWEST CALIFORNIA...
THIS INCLUDES THE CITY OF EL CAJON...
* UNTIL 630 PM PST
* AT 505 PM PST...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED HEAVY RAIN OVER THE WARNED AREA.
AT 505 PM PST...THE AREA OF SHOWERS WITH HEAVY RAINFALL WAS ABOUT 9
MILES SOUTHWEST OF SANTEE...OR 6 MILES WEST OF LA MESA...AND WAS
NEARLY STATIONARY. ACCUMULATING HAIL IS ALSO POSSIBLE WITH THIS
STORM THAT MAY CLOG SOME DRAINS.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
LAT...LON 3280 11701 3271 11722 3291 11722 3307 11675
3282 11671 3268 11680
TIME...MOT...LOC 0104Z 213DEG 12KT 3283 11710
$$
SMALLThe office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 11:56 AM PST | Frost Advisory | SGX | Riverside, San Bernardino, San Diego | 21 hr |
| Feb 15, 1:00 PM PST | High Surf Advisory | SGX | San Diego | 45 hr |
Nearby
Flash Flood Warnings in California, 2008Every flash flood warning in 2008
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.