Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 167, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jul 15, 2002, 6:31 PM CDT for Williamson County, Texas. It was in force for 119 min. 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 15, 2002, 6:31 PM CDT (23:31 UTC)
- Expired
- Jul 15, 2002, 8:30 PM CDT
- In force
- 119 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Williamson County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 11.5 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
- 1717 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 725 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 16 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 152331 FFWSAT TXC491-160130- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 630 PM CDT MON JUL 15 2002 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES... WILLIAMSON * UNTIL 830 PM CDT * AT 630 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN 8 MILES WEST OF SERENADA...MOVING NORTHWEST AT 15 MPH. RAINFALL RATES OF UP TO 1 AND A HALF INCHES PER HOUR WERE INDICATED WITH THIS STORM. 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. LAT...LON 3069 9783 3056 9768 3092 9718 3111 9740
1 follow-up statement
000 WGUS74 KEWX 152348 FFSSAT TXC491-160130- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 650 PM CDT MON JUL 15 2002 ...A FLASH FLOOD WARNING CONTINUES FOR WILLIAMSON COUNTY UNTIL 830 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL ACROSS WESTERN PORTIONS OF WILLIAMSON COUNTY JUST SOUTH OF ANDICE MOVING NORTH AROUND 15 MPH. ISLATED RAINFALL RATES OF 1 AND A HALF TO TWO INCHES PER HOUR WERE INDICATED JUST SOUTH OF ANDICE AT 645 PM. PERSONS SHOULD STAY AWAY FROM THE BANKS ALONG THE NORTH FORK OF THE SAN GABRIEL RIVER TOWARD LAKE GEORGETOWN AS HEAVY RAINS MAY CAUSE RIVER LEVELS TO RISE SUDDENLY. 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 WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. DO NOT ATTEMPT TO DRIVE ACROSS LOW WATER CROSSINGS WHEN WATER COVERS THE ROAD. 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 14, 7:07 PM CDT | Flash Flood Warning | EWX | Maverick, Zavala | 53 min |
| Jul 14, 7:19 PM CDT | Flash Flood Warning | EWX | Frio, Karnes | 101 min |
| Jul 14, 8:56 PM CDT | Flash Flood Warning | EWX | Atascosa, Karnes | 2 hr |
| Jul 15, 8:30 AM CDT | Flash Flood Warning | EWX | Frio | 3 hr |
| Jul 15, 8:40 AM CDT | Flash Flood Warning | EWX | Fayette, Lavaca | 3 hr |
| Jul 15, 10:09 AM CDT | Flash Flood Warning | EWX | Bandera, Comal, Kendall | 2 hr |
| Jul 15, 12:15 PM CDT | Flash Flood Warning | EWX | Dimmit, Maverick, Zavala | 105 min |
| Jul 15, 12:33 PM CDT | Flash Flood Warning | EWX | Frio | 87 min |
| Jul 15, 12:37 PM CDT | Flash Flood Warning | EWX | DeWitt, Karnes | 83 min |
| Jul 15, 1:41 PM CDT | Flash Flood Warning | EWX | Dimmit, Frio, Maverick, Zavala | 3 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.