Alert archive / Texas / Flash Flood Warnings in 2000
Flash Flood Warning 10, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 19, 2000, 10:55 PM CDT for Atascosa 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 counties it named.
The facts
- Issued
- May 19, 2000, 10:55 PM CDT (03:55 UTC)
- Expired
- May 20, 2000, 1:00 AM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Atascosa County, TX
The radar
The Austin/San Antonio radar (KEWX), 102 km from the middle of the area, began a volume at 03:57 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 00:00Z, 3.9 hours before the alert went out and 174 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
- 3311 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 8.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KEWX 200354 FFWEWX TXC013-200600- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1055 PM CDT FRI MAY 19 2000 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... ATASCOSA COUNTY * UNTIL 100 AM CDT DOPPLER RADAR INDICATED SLOW MOVING HEAVY THUNDERSTORMS IN AN AREA BETWEEEN LEMING AND CAMPBELLTON INCLUDING THE CITY OF PLEASANTON. RADAR MEASUREMENTS ESTIMATED RAINFALL RATES OF 2 TO 3 INCHES AN HOUR IN THE AREA. FLOODING WAS OCCURRING ON FM 2790...FM2146...FM476 AND ON INTERSTATE HIGHWAY 37. COUNTY AUTHORITIES WERE IN THE PROCESS OF PUTTING UP BARRICADES ON SOME OF THESE ROADS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS OR LOW WATER CROSSINGS. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. 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.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 7:00 PM CDT | Severe Thunderstorm Warning | EWX | Zavala | 60 min |
| May 19, 7:33 PM CDT | Tornado Warning | EWX | Bexar, Medina | 42 min |
| May 19, 7:40 PM CDT | Severe Thunderstorm Warning | EWX | Frio | 65 min |
| May 19, 7:55 PM CDT | Tornado Warning | EWX | Wilson | 50 min |
| May 19, 8:11 PM CDT | Tornado Warning | EWX | Bexar, Medina | 64 min |
| May 19, 8:43 PM CDT | Severe Thunderstorm Warning | EWX | Frio | 62 min |
| May 19, 8:49 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 56 min |
| May 19, 8:50 PM CDT | Flash Flood Warning | EWX | Bexar | 100 min |
| May 19, 9:17 PM CDT | Flash Flood Warning | EWX | Frio | 103 min |
Nearby
Flash Flood Warnings in Texas, 2000Every flash flood warning in 2000
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.