Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 33, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 17, 1999, 11:51 PM CDT for Bandera County, Texas. It was in force for 54 min. 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 17, 1999, 11:51 PM CDT (04:51 UTC)
- Expired
- May 18, 1999, 12:45 AM CDT
- In force
- 54 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Bandera County, TX
The radar
The Laughlin AFB radar (KDFX), 113 km from the middle of the area, began a volume at 04:53 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 00:00Z, 4.9 hours before the alert went out and 160 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
- 4965 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1037 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -67 m²/s²
- 0-3 km storm-relative helicity
- -71 m²/s²
- Significant tornado parameter
- -1.7
- Supercell composite
- -11.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KEWX 180454 FFWSAT TXC019-180545- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1151 PM CDT MON MAY 17 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... BANDERA COUNTY * UNTIL 1245 AM CDT * RAINFALL AMOUNTS OF 1 1/2 TO 2 INCHES HAS FALLEN OVER WESTERN BANDERA COUNTY IN THE LAST 3 HOURS WITH ISOLATED AREAS RECEIVING NEAR 3 INCHES. RAINFALL IS EXPECTED TO CONTINUE FOR THE NEXT HOUR. RUNNOFF FROM THIS RAIN WILL FLOOD LOW WATER CROSSINGS AND LOW LYING AREAS IN WESTERN BANDERA COUNTY. 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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY LBE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, May 17, 9:56 PM CDT, 1 hour 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
951 PM CST MON MAY 17 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0930 PM COMSTOCK TX .5 INCH HAIL
05/17/99 VAL VERDE HWY 163 13 MI. N. OF
COMSTOCK REPORTED BY
COUNTY SD
0930 PM BURNET TX .5 INCH HAIL
05/17/99 BURNET MARBLE SIZE HAIL REPORTED
BY HAMS IN BURNET COUNTYLocal storm report, May 17, 10:51 PM CDT, 1 hour before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
951 PM CST MON MAY 17 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0930 PM COMSTOCK TX .5 INCH HAIL
05/17/99 VAL VERDE HWY 163 13 MI. N. OF
COMSTOCK REPORTED BY
COUNTY SD
0930 PM BURNET TX .5 INCH HAIL
05/17/99 BURNET MARBLE SIZE HAIL REPORTED
BY HAMS IN BURNET COUNTYThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 7:17 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 58 min |
| May 17, 7:24 PM CDT | Tornado Warning | EWX | Val Verde | 36 min |
| May 17, 8:01 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 59 min |
| May 17, 8:13 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 32 min |
| May 17, 8:29 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Gillespie | 61 min |
| May 17, 8:42 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 63 min |
| May 17, 8:59 PM CDT | Tornado Warning | EWX | Val Verde | 31 min |
| May 17, 9:29 PM CDT | Tornado Warning | EWX | Kinney, Val Verde | 31 min |
| May 17, 9:58 PM CDT | Tornado Warning | EWX | Val Verde | 17 min |
| May 17, 10:41 PM CDT | Flash Flood Warning | EWX | Travis | 79 min |
| May 17, 10:41 PM CDT | Severe Thunderstorm Warning | EWX | Travis | 79 min |
| May 17, 10:49 PM CDT | Flash Flood Warning | EWX | Gillespie | 101 min |
| May 17, 11:06 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Gonzales | 54 min |
| May 17, 11:26 PM CDT | Severe Thunderstorm Warning | EWX | Guadalupe | 64 min |
| May 17, 11:34 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt, Gonzales, Lavaca | 86 min |
| May 17, 11:34 PM CDT | Severe Thunderstorm Warning | EWX | Karnes, Wilson | 86 min |
| May 17, 11:39 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 66 min |
| May 18, 12:30 AM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 60 min |
| May 18, 12:56 AM CDT | Severe Thunderstorm Warning | EWX | Frio | 64 min |
| May 18, 2:16 AM CDT | Severe Thunderstorm Warning | EWX | Maverick, Zavala | 64 min |
Nearby
Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999
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.