Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 138, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 11, 1998, 12:24 AM CDT for DeWitt County, Texas. It was in force for 5 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
- Sep 11, 1998, 12:24 AM CDT (05:24 UTC)
- Expired
- Sep 11, 1998, 5:30 AM CDT
- In force
- 5 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County DeWitt County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 5.4 hours before the alert went out and 150 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
- 4 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 501 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 110526 FFWSAT TXC123-111030- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1224 AM CDT FRI SEP 11 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... DEWITT COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 530 AM CDT * FLASH FLOODING EXPECTED AROUND- COUNTY WIDE * AT 1223 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAINS ASSOCIATED WITH TROPICAL STORM FRANCES MOVING INTO DEWITT COUNTY. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL CAUSE FLOODING OF LOW LYING AREAS AND LOW WATER CROSSINGS. DEWITT COUNTY DPS REPORTED THAT ROADWAYS ARE BEGINNING TO FLOOD IN THE CUERO AREA. SIMILAR CONDITIONS CAN BE EXPECTED COUNTY WIDE THROUGH THE MORNING HOURS. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED... ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW MUCH WATER IS ON ROADS. MOTORISTS SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH. &
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 11:29 PM CDT | Flash Flood Warning | EWX | Lavaca | 6 hr |
| Sep 11, 5:09 AM CDT | Flash Flood Warning | EWX | DeWitt, Gonzales, Lavaca | 5 hr |
| Sep 11, 5:09 AM CDT | Flash Flood Warning | EWX | Karnes | 5 hr |
| Sep 11, 8:16 AM CDT | Flash Flood Warning | EWX | Wilson | 4 hr |
| Sep 11, 8:53 AM CDT | Flash Flood Warning | EWX | Bastrop, Lee, Travis, Williamson | 4 hr |
| Sep 11, 9:58 AM CDT | Flash Flood Warning | EWX | DeWitt, Karnes | 3 hr |
| Sep 11, 11:08 AM CDT | Flash Flood Warning | EWX | Guadalupe | 112 min |
| Sep 11, 11:16 AM CDT | Flash Flood Warning | EWX | Comal | 104 min |
| Sep 11, 11:23 AM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Sep 11, 12:22 PM CDT | Flash Flood Warning | EWX | Wilson | 98 min |
| Sep 11, 6:03 PM CDT | Flash Flood Warning | EWX | Fayette, Lee | 2 hr |
Nearby
Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998
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.