Alert archive / Texas / Tornado Warnings in 1991

Tornado Warning 4, NWS San Angelo, TX

May 3, 1991McCulloch County, Texas

NWS San Angelo, TX issued this tornado warning at May 3, 1991, 4:37 PM CDT for McCulloch County, Texas. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
May 3, 1991, 4:37 PM CDT (21:37 UTC)
Expired
May 3, 1991, 5:30 PM CDT
In force
53 min
Issued by
NWS San Angelo, TX
Area
Whole counties

County McCulloch County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 12:00Z, 9.6 hours before the alert went out and 164 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 12:00Z on 1991-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2305 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 12:00Z on 1991-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 257 square meters per square second.1939587897117Sfc1 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
2305 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
718 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
257 m²/s²
0-3 km storm-relative helicity
236 m²/s²
Significant tornado parameter
1.9
Supercell composite
13.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this tornado 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 3, 11:12 AM CDT, 5 hours 25 minutes before
TXZ029-034-031715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1111 AM CDT FRI MAY 3 1991

...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WATCH FOR MASON AND MCCULLOCH COUNTIES OF THE CONCHO VALLEY UNTIL
300 PM CDT THIS AFTERNOON...

AT 1059 AM CDT...SAN ANGELO RADAR INDICATED A STRONG THUN DERSTORM
LOCATED IN SAN SABA AND LLANO COUNTIES JUST TO THE EAST OF THE CONCHO
VALLEY. A FEW ISOLATED SHOWERS WERE LOCATED IN THE EDEN AND FT
MCKAVETT AREAS AS WELL. ALL ACTIVITY WAS MOVING TO THE EASTNORTH-
EAST AT 30 MILES AN HOUR.

THE THUNDERSTORM IN SAN SABA AND LLANO COUNTIES PRODUCED PEA TO MARBLE
SIZE HAIL AT PONTOTOC ALONG WITH GUSTY WINDS AND VERY HEAVY RAIN AS
IT MOVED THROUGH NORTHERN MASON COUNTY LAST HOUR.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE
FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN OR CLOSE TO
THE AREA AND ALSO THAT SEVERE THUNDERSTORMS SOMETIMES PRODUCE
TORNADOES...OFTEN WITHOUT WARNING...SO REMAIN ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS.
Special weather statement, May 3, 1:09 PM CDT, 3 hours 28 minutes before
TXZ012-015-019-024-029-030-051900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABILENE TX
110 PM CDT FRI MAY 3 1991

...A TORNADO WATCH IS IN EFFECT UNTIL 800 PM CDT FOR THE FOLLOWING
BIG COUNTRY COUNTIES. THROCKMORTON  SHACKELFORD TAYLOR CALLAHAN COLEMAN
AND BROWN.

AT 105 PM THUNDERSTORMS WERE SCATTERED OVER THE EASTERN BIG COUNTRY
ALONG AND TO THE EAST OF A BRONTE TO ABILENE TO THROCKMORTON LINE.
IN THE BIG COUNTRY THE HEAVIEST RAIN WAS LOCATED JUST SOUTH OF ALBANY...
AND MOVING INTO SOUTHERN BROWN COUNTY.

THUNDERSTORMS WILL LIKELY INTENSIFY AND POSSIBLY BECOME SEVERE LATER
THIS AFTERNOON AND EVENING.

BIG COUNTRY RESIDENTS IN AND NEAR THE WATCH AREA SHOULD BE ON THE ALERT
FOR THREATENEING WEATHER AND LISTEN FOR LATER STATEMENTS OR POSSIBLE
 WARNINGS.

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 7:33 PM CDTSevere Thunderstorm WarningSJTSchleicher, Sutton57 min
May 2, 8:27 PM CDTSevere Thunderstorm WarningSJTCoke48 min
May 3, 1:09 PM CDTSevere Thunderstorm WarningSJTRunnels66 min
May 3, 1:18 PM CDTTornado WarningSJTRunnels57 min
May 3, 2:38 PM CDTSevere Thunderstorm WarningSJTMcCulloch67 min
May 3, 2:47 PM CDTTornado WarningSJTMcCulloch58 min
May 3, 3:45 PM CDTSevere Thunderstorm WarningSJTMcCulloch60 min

Nearby

Tornado Warnings in Texas, 1991Every tornado warning in 1991Tornadoes 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.