Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 36, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 30, 2002, 4:54 PM CDT for 6 counties in 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 counties it named.
The facts
- Issued
- Jun 30, 2002, 4:54 PM CDT (21:54 UTC)
- Expired
- Jun 30, 2002, 8:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Blanco County, TX, Comal County, TX, Gillespie County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX
The radar
The Austin/San Antonio radar (KEWX), 70 km from the middle of the area, began a volume at 21:56 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, 9.9 hours before the alert went out and 228 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
- 792 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
042 WGUS54 KEWX 302154 FFWSAT TXC031-091-171-209-259-265-010045- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 452 PM CDT SUN JUN 30 2002 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES... GILLESPIE BLANCO HAYS KERR KENDALL COMAL * UNTIL 800 PM CDT * AT 452 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN MOVING NORTHWARD AT 25 MPH ACROSS GILLWSPIE...BLANCO...HAYS...HERR KENDALL AND COMAL COUNTIES. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 4:08 AM CDT | Flash Flood Warning | EWX | Guadalupe | 3 hr |
| Jun 30, 6:18 AM CDT | Flash Flood Warning | EWX | Bandera | 3 hr |
| Jun 30, 6:46 AM CDT | Flash Flood Warning | EWX | Blanco, Comal, Hays | 4 hr |
| Jun 30, 7:02 AM CDT | Flash Flood Warning | EWX | Guadalupe | 4 hr |
| Jun 30, 7:21 AM CDT | Flash Flood Warning | EWX | Lavaca | 4 hr |
| Jun 30, 7:46 AM CDT | Flash Flood Warning | EWX | Bastrop, Travis, Williamson | 4 hr |
| Jun 30, 8:08 AM CDT | Flash Flood Warning | EWX | Kendall | 4 hr |
| Jun 30, 8:46 AM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Jun 30, 9:29 AM CDT | Flash Flood Warning | EWX | Burnet | 4 hr |
| Jun 30, 9:49 AM CDT | Flash Flood Warning | EWX | Gillespie | 3 hr |
| Jun 30, 10:24 AM CDT | Flash Flood Warning | EWX | Kerr | 3 hr |
| Jun 30, 10:43 AM CDT | Flash Flood Warning | EWX | Blanco | 2 hr |
| Jun 30, 11:24 AM CDT | Flash Flood Warning | EWX | Kendall | 3 hr |
| Jun 30, 12:52 PM CDT | Flash Flood Warning | EWX | Bandera, Blanco, Burnet, Gillespie, Kendall, Kerr and 1 more | 3 hr |
| Jun 30, 1:43 PM CDT | Flash Flood Warning | EWX | Atascosa, Bexar, Comal, Guadalupe, Hays, Wilson | 3 hr |
| Jun 30, 3:42 PM CDT | Flash Flood Warning | EWX | Blanco, Burnet, Kendall | 2 hr |
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.