Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 45, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jul 1, 2002, 4:09 PM CDT for Medina County, Texas. It was in force for 3 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
- Jul 1, 2002, 4:09 PM CDT (21:09 UTC)
- Expired
- Jul 1, 2002, 7:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Medina County, TX
The radar
The Austin/San Antonio radar (KEWX), 91 km from the middle of the area, began a volume at 21:09 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
Del Rio, TX (KDRT), launched 12:00Z, 9.2 hours before the alert went out and 186 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
- 676 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 012109
FFWSAT
TXC325-020000-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
406 PM CDT MON JUL 1 2002
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
MEDINA
* UNTIL 700 PM CDT
* AT 406 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
OVER THE RIOMEDINA...CASTROVILLE...AND LACOSTE AREAS WITH RAINFALL
RATES OF 1 TO 2 INCHES PER HOUR. THE RAINS WERE MOVING SLOWLY TO
THE NORTHEAST AT 5 MPH. THE SOILS ARE SATURATED FROM PREVIOUS
RAINS AND RUNOFF WILL BE RAPID AND CAUSE FLASH FLOODING.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
LAT...LON 2927 9898 2924 9882 2971 9882 2956 9893
2960 99001 follow-up statement
000 WGUS74 KEWX 012216 FFSSAT TXC325-012315- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 516 PM CDT MON JUL 1 2002 ...THE FLASH FLOOD WARNING FOR MEDINA COUNTY HAS BEEN CANCELLED... NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL HAS MOVED EAST INTO BEXAR COUNTY...AND THE FLOOD THREAT WAS DIMINISHING. SOME MINOR FLOODING MAY CONTINUE AS SMALL STREAMS CONTINUE TO RUN HIGH AND WATER PONDS IN LOW LYING AREAS. THE THREAT OF SERIOUS FLOODING HAS ENDED...AND THE FLASH FLOOD WARNING HAS BEEN CANCELLED. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 4:28 AM CDT | Flash Flood Warning | EWX | Bexar | 2 hr |
| Jul 1, 6:36 AM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Jul 1, 6:56 AM CDT | Flash Flood Warning | EWX | Gonzales, Guadalupe | 2 hr |
| Jul 1, 7:48 AM CDT | Flash Flood Warning | EWX | Atascosa | 117 min |
| Jul 1, 8:50 AM CDT | Flash Flood Warning | EWX | Frio | 3 hr |
| Jul 1, 9:31 AM CDT | Flash Flood Warning | EWX | Atascosa, Bexar | 2 hr |
| Jul 1, 12:07 PM CDT | Flash Flood Warning | EWX | Dimmit, Zavala | 3 hr |
| Jul 1, 12:12 PM CDT | Flash Flood Warning | EWX | Atascosa, Bexar, Frio | 3 hr |
| Jul 1, 3:22 PM CDT | Flash Flood Warning | EWX | Kendall | 3 hr |
| Jul 1, 5:02 PM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Jul 1, 6:20 PM CDT | Flash Flood Warning | EWX | Kendall | 115 min |
Nearby
Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002
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.