Alert archive / Texas / Flash Flood Warnings in 2001
Flash Flood Warning 21, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 5, 2001, 5:41 PM CDT for Lavaca County, Texas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- May 5, 2001, 5:41 PM CDT (22:41 UTC)
- Expired
- May 5, 2001, 8:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Lavaca County, TX
The radar
The Austin/San Antonio radar (KEWX), 103 km from the middle of the area, began a volume at 22:44 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
Corpus Christi, TX (KCRP), launched 12:00Z, 10.7 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
- 1535 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 576 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KEWX 052244 FFWEWX TXC285-052345- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 541 PM CDT SAT MAY 5 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLASH FLOOD WARNING FOR... LAVACA * UNTIL 800 PM CDT * AT 541 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN ACROSS LAVACA COUNTY WITH ADDITIONAL RAIN MOVE NORTHEAST FROM DEWITT COUNTY...AT 20 MPH. EXCESSIVE RUNOFF FROM THESE STORMS 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. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. LAT...LON 2939 9725 2909 9693 2938 9659 2967 9715
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 7:12 PM CDT | Severe Thunderstorm Warning | EWX | Maverick | 63 min |
| May 4, 7:35 PM CDT | Tornado Warning | EWX | Maverick | 40 min |
| May 4, 7:54 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Real | 66 min |
| May 4, 8:06 PM CDT | Flash Flood Warning | EWX | Bandera, Uvalde | 114 min |
| May 4, 8:15 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Zavala | 60 min |
| May 4, 10:14 PM CDT | Tornado Warning | EWX | Frio | 46 min |
| May 5, 2:20 AM CDT | Flash Flood Warning | EWX | Bandera, Real, Uvalde | 3 hr |
| May 5, 3:22 PM CDT | Flash Flood Warning | EWX | Karnes | 113 min |
| May 5, 3:45 PM CDT | Flash Flood Warning | EWX | Lavaca | 2 hr |
| May 5, 4:01 PM CDT | Flash Flood Warning | EWX | DeWitt | 119 min |
| May 5, 5:02 PM CDT | Flash Flood Warning | EWX | Travis, Williamson | 88 min |
Nearby
Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001
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.