Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 89, NWS Austin/San Antonio, TX

May 24, 2001Frio County, Medina County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 24, 2001, 10:30 PM CDT for Frio County, Medina 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, 10:30 PM CDT (03:30 UTC)
Expired
May 24, 2001, 11:30 PM CDT
In force
60 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Frio County, TX, Medina County, TX

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 24, 5:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 3.5 hours before the alert went out and 168 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2001-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 813 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2001-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KEWX 250332
SVRSAT

TXC163-325-250430-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1030 PM CDT THU MAY 24 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  MEDINA
  FRIO

* UNTIL 1130 PM CDT

* AT 1030 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES WEST OF YANCEY...OR ABOUT 17 MILES
  SOUTH OF HONDO...MOVING SOUTHEAST AT 20 MPH.
  OTHER SEVERE THUNDERSTORMS 10 MILES NORHTWEST OF FRIO TOWN AND
  NEAR NATALIA...MOVING SOUTHEAST AT 20 MPH  

* THE SEVERE THUNDERSTORM WILL BE...
  7 MILES SOUTHWEST OF YANCEY AT 1035 PM
  7 MILES NORTHEAST OF FRIO TOWN AT 1045 PM
  5 MILES NORTHWEST OF PEARSALL AT 1130 PM

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  YANCEY
  FRIO TOWN
  PEARSALL
  DEVINE
  MOORE

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.


LAT...LON 2914 9939 2867 9938 2866 9885 2927 9882

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, 7:50 PM CDT, 2 hours 40 minutes earlier.

Area forecast discussion, May 24, 7:50 PM CDT, 2 hours 40 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
750 PM CDT THU MAY 24 2001

UPDATED ZONES TO REFLECT SEVERE THUNDERSTORM WATCH UNITL 2 AM
FRIDAY...NO OTHER CHANGES AS ONGOING FORECAST ON TRACK.
04/06/JB

PREVIOUS DISCUSSION
UPDATED ZONES TO REFLECT SEVERE THUNDERSTORM WATCH UNTIL 11 PM...
NO OTHER CHANGES AS ONGOING FORECAST ON TRACK.
04/06/JB

AFTERNOON 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 2333
DRT 69/94/70/97 2331
SAT 65/85/66/89 2332

.EWX...NONE.

18/2/23

m

In the hours before

Local storm report, May 24, 9:22 PM CDT, 1 hour 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
922 PM CDT THU MAY 24 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0910 PM    HONDO                     TX   1.50 INCH HAIL
05/24/01   MEDINA                         NORTH OF HONDO REPORTED BY
                                          LAW ENFORCEMENT

CFM

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 7:45 PM CDTSevere Thunderstorm WarningEWXGillespie60 min
May 24, 7:48 PM CDTSevere Thunderstorm WarningEWXEdwards57 min
May 24, 8:04 PM CDTTornado WarningEWXEdwards41 min
May 24, 8:16 PM CDTSevere Thunderstorm WarningEWXReal44 min
May 24, 8:42 PM CDTSevere Thunderstorm WarningEWXKinney, Val Verde63 min
May 24, 8:54 PM CDTSevere Thunderstorm WarningEWXGillespie, Llano51 min
May 24, 9:17 PM CDTSevere Thunderstorm WarningEWXMedina58 min
May 24, 9:19 PM CDTSevere Thunderstorm WarningEWXUvalde56 min
May 24, 9:41 PM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Llano64 min
May 24, 9:46 PM CDTSevere Thunderstorm WarningEWXUvalde, Zavala59 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.