Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 80, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 24, 2001, 7:45 PM CDT for Gillespie County, Texas. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- May 24, 2001, 7:45 PM CDT (00:45 UTC)
- Expired
- May 24, 2001, 8:45 PM CDT
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Gillespie County, TX
The radar
The Austin/San Antonio radar (KEWX), 133 km from the middle of the area, began a volume at 00:49 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 24, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 0.8 hours before the alert went out and 201 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
- 813 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 3306 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 250046 SVRSAT TXC171-250145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 745 PM CDT THU MAY 24 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... GILLESPIE * UNTIL 845 PM CDT * AT 745 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 28 MILES WEST OF FREDERICKSBURG...MOVING EAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE... NEAR DOSS AT 800 PM IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE \LARGE DAMAGING HAIL...DAMAGING WINDS IN EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN. LAT...LON 3051 9937 3033 9939 3023 9879 3050 9876
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 24, 6:11 PM CDT, 1 hour 34 minutes earlier.
Area forecast discussion, May 24, 6:11 PM CDT, 1 hour 34 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 611 PM CDT THU MAY 24 2001 UPDATED ZONES TO REFLECT SEVERE THUNDERSTORM WATCH UNTIL 11 PM... NO OTHER CHANGES AS ONGOING FORECAST ON TRACK. 04/06/JB PREVIOUS DISCUSSION... COLD FRONT NOW PUSHING INTO THE COUNTY WARNING AND FORECAST AREA WITH FALLING DEWPOINTS OVER CENTRAL TEXAS. THEREFORE, THE CHANCE OF RAIN OVER THE AUSTIN AREA APPEARS LESS THAN PREVIOUSLY ASSESSED. WILL KEEP POPS IN THE 10 TO 20 RANGE ACROSS NORTHERN SECTIONS. WITH NO SIGNIFICANT BUILDUPS NEAR THE AREA, AM LEANING TOWARD SLIGHT CHANCE POPS ALL OTHER AREAS EXCEPT SOUTHEAST. ONCE THUNDERSTORMS BEGIN, SOME ENHANCEMENT IS POSSIBLE AS AN UPSTREAM SHORTWAVE APPROACHES. TOMORROW, ANOTHER SEVERE WEATHER EVENT SHOULD UNFOLD AS THE AREA WILL FIND ITSELF IN THE ENTRANCE REGION OF AN UPPER JET WHILE WEAK SHORTWAVE DISTURBANCES PASS DOWN IN NW FLOW. 12Z MODEL RUNS CONTINUE THE TREND OF A WEAKER COLD FRONT AND EARLIER RETREAT OF THE FRONTAL ZONE SATURDAY INTO SUNDAY. WILL TAKE AN AVN/ETA MIX TO END THE CHANCE OF RAIN AFTER SATURDAY NIGHT WITH THE UPPER RIDGE TAKING HOLD SUNDAY. ON TEMPS, WILL FAVOR COOLER PREVIOUS FORECAST NUMBERS OVER MODEL GUIDANCE WHICH APPEARS TOO WARM AT NIGHT. THE EXTENDED FORECAST WILL BE LEFT MUCH THE SAME AS MODEL CONSENSUS KEEPS AN UPPER RIDGE OVER SOUTH TX. PRELIMINARY NUMBERS... AUS 60/83/62/88 2d333 DRT 69/94/70/97 2331 SAT 65/85/66/89 2332 .EWX...NONE. 18/2/23
In the hours before
Special weather statement, May 24, 2:11 PM CDT, 5 hours 34 minutes before
TXZ171>173-183>194-202>209-217>225-228-250000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 211 PM CDT THU MAY 24 2001 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS LATE THIS AFTERNOON AND THIS EVENING ACROSS SOUTH CENTRAL TEXAS. THIS OUTLOOK APPLIES TO THE FOLLOWING SPECIFIC COUNTIES... ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET...CALDWELL... COMAL...DEWITT...DIMMIT...EDWARDS...FAYETTE...FRIO...GILLESPIE... GONZALES...GUADALUPE...HAYS...KARNES...KENDALL...KERR...KINNEY... LAVACA...LEE...LLANO...MAVERICK...MEDINA...REAL...TRAVIS...UVALDE... VAL VERDE...WILLIAMSON...WILSON AND ZAVALA. THE COMBINATION OF ABUNDANT LOW LEVEL MOISTURE...STRONG UPPER LEVEL INSTABILITY...AND AN APPROACHING COLD FRONT WILL PRODUCE SCATTERED STRONG THUNDERSTORMS MOVING SOUTH ACROSS THE AREA. THE PRIMARY SEVERE WEATHER THREATS WILL BE FOR DAMAGING DOWNBURSTS WINDS AND LARGE HAIL. HOWEVER ISOLATED SUPER-CELL THUNDERSTORMS MAY DEVELOP ALONG THE COLD FRONT WITH TORNADOES POSSIBLE. SPOTTER NETWORKS MAY NEED TO BE ACTIVATED. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION OR RADIO STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR LATER STATEMENTS CONCERNING THIS POTENTIALLY DANGEROUS SEVERE WEATHER THREAT. && FOR INFORMATION ON WEATHER THREATS IN SURROUNDING AREAS...REFER TO OUTLOOKS FROM OFFICES IN MIDLAND...SAN ANGELO...FORT WORTH... HOUSTON/GALVESTON AND CORyPUS CHRISTI.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:48 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 57 min |
| May 24, 8:04 PM CDT | Tornado Warning | EWX | Edwards | 41 min |
| May 24, 8:16 PM CDT | Severe Thunderstorm Warning | EWX | Real | 44 min |
| May 24, 8:42 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Val Verde | 63 min |
| May 24, 8:54 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie, Llano | 51 min |
| May 24, 9:17 PM CDT | Severe Thunderstorm Warning | EWX | Medina | 58 min |
| May 24, 9:19 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 56 min |
| May 24, 9:41 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Llano | 64 min |
| May 24, 9:46 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde, Zavala | 59 min |
| May 24, 10:30 PM CDT | Severe Thunderstorm Warning | EWX | Frio, Medina | 60 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
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.