Alert archive / Texas / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 49, NWS Austin/San Antonio, TX

April 14, 1991Milam County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 14, 1991, 5:13 AM CDT for Milam County, Texas. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Apr 14, 1991, 5:13 AM CDT (10:13 UTC)
Expired
Apr 14, 1991, 6:15 AM CDT
In force
62 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Milam County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 00:00Z, 10.2 hours before the alert went out and 192 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, Stephenville/Cla, TX at 00:00Z on 1991-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 372 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Stephenville/Cla, TX at 00:00Z on 1991-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 square meters per square second.1939587897Sfc1 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
372 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1355 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
-110 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 141015
SVRAUS
TXC331-141115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
513 AM CDT SUN APR 14 1991
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...MILAM COUNTY
 
AT 510 AM RADAR INDICATED A SEVERE THUNDERSTORM ON THE BELL MILAM
COUNTY LINE. THE STORM WAS NEAR RODGERS MOVING EAST AT 30 MPH.
 
THIS STORM WILL BE AFFECTING THE CITY OF CAMERON IN THE NEXT 30
MINUTES.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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.

In the hours before

Special weather statement, Apr 14, 2:22 AM CDT, 2 hours 51 minutes before
TXZ034>030-140900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
220 AM CDT SUN APR 14 1991

...THUNDERSTORM DEVELOPING RAPIDLY OVER THE HILL COUNTRY...

AT 210 AM CDT AUSTIN RADAR INDICATED THUNDERSTORMS DEVELOPING RAPIDLY
FROM KERVILLE WEST TO UVALDE.  SOME OF THE THUNDERSTORMS ARE STRONG
AND COULD PRODUCE STRONG WINDS AND HAIL.

THESE STORMS COULD MOVE INTO GILLESPIE AND BLANCO COUNTIES IN THE
NEXT HOUR.

STAY IN TOUCH OF RAPVIDLY CHANGING  WEATHER CONDITIONS AND FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

RVL
Special weather statement, Apr 14, 3:20 AM CDT, 1 hour 53 minutes before
TXZ030>037-141000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
0320 AM CDT SUN APR 14 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 8 AM CDT FOR PARTS OF
   CENTRAL AND SOUTHERN TEXAS...AND INCLUDES THE FOLLOWING COUNTIES
   BURLESON...GILLESPIE...WILLIAMSON...BURNET...LEE...TRAVIS...BLANCO
   CALDWELL...FAYETTE...BASTROP...HAYS...LLANO AND MILAM...
...THUNDERSTORM DEVELOPING RAPIDLY OVER THE HILL COUNTRY...

AT 315 AM CDT AUSTIN RADAR SHOWED THUNDERSTORMS FROM BURNET AND BLANCO
DOWN SOUTHWEST BEYOND HONDO. THESE THUNDERSTORMS HAVE BEEN VERY STRONG
AND SOME HAVE PRODUCED HAIL...STRONG WINDS AND HEAVY RAIN.

THESE STORMS WERE MOVING TOWARDS THE NORTHEAST AT 25 MILES AN HOUR.
THESE STORMS WERE INCREASING IN INTENSITY BETWEEN 2 AND 3 AM CDT.

LISTEN FOR LATER STATEMENTS AND WARNINGS THAT WILL BE ISSUED...TUNE
TO LOCAL TV...RADIO OR NOAA WEATHER RADIO.            WITHROW

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 7:17 PM CDTSevere Thunderstorm WarningEWXBastrop, Lee58 min
Apr 13, 7:55 PM CDTSevere Thunderstorm WarningEWXFayette65 min
Apr 13, 8:51 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette69 min
Apr 13, 9:56 PM CDTSevere Thunderstorm WarningEWXFayette64 min
Apr 14, 2:29 AM CDTSevere Thunderstorm WarningEWXKerr61 min
Apr 14, 2:56 AM CDTSevere Thunderstorm WarningEWXBandera, Frio, Medina, Uvalde, Zavala64 min
Apr 14, 3:17 AM CDTSevere Thunderstorm WarningEWXBlanco, Gillespie58 min
Apr 14, 3:29 AM CDTSevere Thunderstorm WarningEWXBexar, Comal, Kendall61 min
Apr 14, 3:58 AM CDTSevere Thunderstorm WarningEWXHays62 min
Apr 14, 4:41 AM CDTSevere Thunderstorm WarningEWXTravis64 min
Apr 14, 4:58 AM CDTSevere Thunderstorm WarningEWXHays47 min
Apr 14, 5:38 AM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell52 min
Apr 14, 6:15 AM CDTSevere Thunderstorm WarningEWXFayette45 min
Apr 14, 6:27 AM CDTSevere Thunderstorm WarningEWXLavaca63 min
Apr 14, 1:33 PM CDTSevere Thunderstorm WarningEWXVictoria57 min

Nearby

Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning in 1991

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.