Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 35, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 26, 1999, 10:25 PM CDT for Bexar County, Guadalupe County, Texas. It was in force for 3 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 26, 1999, 10:25 PM CDT (03:25 UTC)
- Expired
- May 27, 1999, 1:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Guadalupe County, TX
The radar
The Austin/San Antonio radar (KEWX), 29 km from the middle of the area, began a volume at 03:26 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, 3.4 hours before the alert went out and 217 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
- 1680 J/kg
- Mixed-layer CIN
- -167 J/kg
- Mixed-layer LCL
- 975 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KEWX 270327 FFWSAT TXC187-029-270630- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1025 PM CDT WED MAY 26 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING... GUADALUPE AND BEXAR COUNTIES IN TEXAS * UNTIL 130 AM CDT * AT 1020 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL EXTENDING FROM SAN ANTONIO EASTWARD TO SEGUIN. THESE STORMS WERE PRODUCING RAINFALL RATES ESTIMATED AT 1 TO 2 INCHES AN HOUR. MOVEMENT WAS EAST AT 15 TO 20 MPH. EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...LOW WATER CROSSINGS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. 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.
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
Special weather statement, May 26, 5:07 PM CDT, 5 hours 18 minutes before
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
Special weather statement, May 26, 5:07 PM CDT, 5 hours 18 minutes before
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
Local storm report, May 26, 10:03 PM CDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1003 PM CDT WED MAY 26 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0645 PM TX
05/26/99 BEXAR *** 1 DEAD, 1 INJ ***
LIGHTNING STRUCK A CAR AT
PLEASONTON ROAD AND LOOP
1604 IN SOUTH BEXAR
COUNTY, ONE PERSON DEAD
AND ONE INJURED, EXACT
CAUSE OF DEATH UNKNOWN.
0750 PM TX 2.75 INCH HAIL
05/26/99 KERR BASEBALL SIZE HAIL I-10
WEST OF KERRVILLE.
REPORTED BY DPS
0802 PM TX 2.75 INCH HAIL
05/26/99 GILLESPIE HARPER 9SW BASEBALL SIZE
HAIL REPORTED BY RAINFALL
OBSERVER
0920 PM TX 1.75 INCH HAIL
05/26/99 BANDERA GOLFBALL SIZE HAIL NORTH
OF BANDERA
0924 PM TX WIND DAMAGE
05/26/99 LEE TREES DOWN ON FM 112 5
MILES EAST OF LEXINGTON,
MARBLE SIZED HAIL IN
NORTHRUP
0946 PM TX 59 MPH TSTM GUST
05/26/99 TRAVIS 59 MPH WIND REPORTED AT
THE TRAVIS COUNTY SCHOOL
FOR THE DEAF,MEDIA REPORT
LARGE TREE BLOWN OVER NEAR
AIRPORT, TREE DAMAGED
CAR/BOAT REPORTED BY HAMSThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 7:16 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie, Kerr | 59 min |
| May 26, 7:43 PM CDT | Severe Thunderstorm Warning | EWX | Lee | 47 min |
| May 26, 8:11 PM CDT | Severe Thunderstorm Warning | EWX | Kerr | 34 min |
| May 26, 8:38 PM CDT | Severe Thunderstorm Warning | EWX | Kendall | 67 min |
| May 26, 8:45 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kerr | 45 min |
| May 26, 8:56 PM CDT | Flash Flood Warning | EWX | Gonzales | 3 hr |
| May 26, 9:26 PM CDT | Severe Thunderstorm Warning | EWX | Bandera | 34 min |
| May 27, 3:00 AM CDT | Severe Thunderstorm Warning | EWX | Gillespie, Llano | 75 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.