Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 2, NWS San Angelo, TX

April 5, 1990Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 5, 1990, 10:17 PM CDT for Tom Green County, Texas. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Apr 5, 1990, 10:17 PM CDT (03:17 UTC)
Expired
Apr 5, 1990, 11:15 PM CDT
In force
58 min
Issued by
NWS San Angelo, TX
Area
Whole counties

County Tom Green County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 3.3 hours before the alert went out and 175 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, Midland Regional, TX at 00:00Z on 1990-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Midland Regional, TX at 00:00Z on 1990-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3454 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSJT 060317
SVRSJT
TXC451-060415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
1017 PM CDT THU APR 5 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES
 
IN SOUTHWEST TEXAS
 
   ...TOM GREEN COUNTY
 
AT 1015 PM CDT ONE INCH HAIL WAS REPORTED BY AN OFF DUTY NATIONAL
WEATHER SERVICE EMPLOYEE IN WEST SAN ANGELO. THE THUNDERSTORM THAT IS
PRODUCING THIS HAIL WAS MOVING SLOWLY TO THE SOUTHEAST.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARbE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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 5, 4:18 PM CDT, 5 hours 59 minutes before
TXZ012-015-019-024-029-030-060000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABILENE TX
4150PM CDT THU APR 5 1990

...TORNADO WATCH IN EFFECT INTO 10PM CDT FOR STONEWALL...HASKELL..
   THROCKMORTON...SCURRY...FISHER...JONES..AND SHACKELFORD COUNTTIES...

AT 4150PM CDT...THUNDERSTORMS CONTINUE OVER THE NORTHERN EDGES OF
STONEWALL AND HASKELL COUNTIES...MOVING EAST AT 25 TO 30 MPH. ANOTHER
STRONG STORM WAS LOCATED JUST NORTH OF THROCKMORTON. THIS STORM HAS
LIKELY PRODUCED BRIEF HEAVY RAIN...AND INTENSE SMALL HAIL. PERSONS IN
NORTHERN THROCKMORTON COUNTY SHOULD REMAIN ALERT TO ANY SUDDEN CHANGE
IN OR NEAR THIS STORM.  OTHER STORMS WERE BUILDING OVER SCURRY COUNTY
AND WILL MOVING EAST TOWARDS SNYDER AND NORTHWEST FISHER COUNTY. ALL
PERSONS IN SCURRY..FISHER AND STONEWALL COUNTIES SHOULD BE ON THE ALERT
TO RAPID WEATHER CHANGES THE NEXT 1 TO 2 HOURS.

ANY TORNADOES THAT FORM COULD DO SO WITH LITTLE OR NO ADVANCED WARNING.
WATCH PFOR PERSISTENT OR INCREASING HAIL...INTENSE FREQUENT LIGHTNING..
OR SUDDEN WIND CHANGES.

STORMS WILL BE MOVING FROM THE WEST TO THE EAST AT 20 TO 30 MPH.
Special weather statement, Apr 5, 6:01 PM CDT, 4 hours 16 minutes before
TXZ017-029-034-018-060000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
601 PM CDT THU APR 5 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR PARTS OF
THE CONCHO VALLEY FROM 6 PM CDT UNTIL MIDNIGHT TONIGHT. THE CONCHO
VALLEY COUNTIES ARE: COKE...CONCHO...MCCULLOCH...MASON...MENARD...
RUNNELS...SCHLEICHER AND TOM GREEN.

AT 545 PM CDT RADAR INDICATED NO PRECIPITATION IN THE CONCHO VALLEY.
STRONG THUNDERSTORMS WERE LOCATED IN THE LOW ROLLING PLAINS...
GENERALLY NORTH OF INTERSTATE 20.

A SLOW MOVING COLD FRONT IS EXPECTED TO ENTER THE CONCHO VALLEY THIS
EVENING AND THE THREAT OF THUNDERSTORMS WILL INCREASE AS WELL DURING
THE EVENING.

REMEMBER THAT A WATCH MEANS THAT CONDTIONS ARE FAVORABLE FOR THE
DEVELOPMENT OF THUNDERSTORMS WHICH MAY PRODUCE TORNADOES IN AND NEAR
THE WATCH AREA. PERSONS IN THE CONCHO VALLEY SHOULD KEEP AN EYE OPEN
FOR THE APPROACH OF DANGEROUS WEATHER AND BE REA*DY TO TAKE COVER
IMMEDIATELY IF HAZARDOUS CONDITIONS ARE SIGHTED.

KEEP LISTENING FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Apr 5, 6:08 PM CDT, 4 hours 9 minutes before
TXZ017-029-034-018-060000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
601 PM CDT THU APR 5 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR PARTS OF
THE CONCHO VALLEY FROM 6 PM CDT UNTIL MIDNIGHT TONIGHT. THE CONCHO
VALLEY COUNTIES ARE: COKE...CONCHO...MCCULLOCH...MASON...MENARD...
RUNNELS...SCHLEICHER AND TOM GREEN.

AT 545 PM CDT RADAR INDICATED NO PRECIPITATION IN THE CONCHO VALLEY.
STRONG THUNDERSTORMS WERE LOCATED IN THE LOW ROLLING PLAINS...
GENERALLY NORTH OF INTERSTATE 20.

A SLOW MOVING COLD FRONT IS EXPECTED TO ENTER THE CONCHO VALLEY THIS
EVENING AND THE THREAT OF THUNDERSTORMS WILL INCREASE AS WELL DURING
THE EVENING.

REMEMBER THAT A WATCH MEANS THAT CONDTIONS ARE FAVORABLE FOR THE
DEVELOPMENT OF THUNDERSTORMS WHICH MAY PRODUCE TORNADOES IN AND NEAR
THE WATCH AREA. PERSONS IN THE CONCHO VALLEY SHOULD KEEP AN EYE OPEN
FOR THE APPROACH OF DANGEROUS WEATHER AND BE REA.DY TO TAKE COVER
IMMEDIATELY IF HAZARDOUS CONDITIONS ARE SIGHTED.

KEEP LISTENING FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Apr 5, 7:09 PM CDT, 3 hours 8 minutes before
TXZ017-029-034-018-060115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
709 PM CDT THU APR 5 1990

THE TORNADO WATCH FOR THE NORTHEAST CONCHO VALLEY CONTINUES IN EFFECT
UNTIL MIDNIGHT.

AT 705 PM CDT RADAR INDICATED A SMALL THUNDERSTORM IN THE NORTHWEST
CORNER OF RUNNELS COUNTY. THIS THUNDERSTORM WAS THE SOUTHERN END OF AN
AREA OF THUNDERSTORMS THAT EXTENDED NORTHEAST ACROSS ABILENE. MOVEMENT
WAS TO THE EAST AT 20 MPH.

NO OTHER PRECIPITATION WAS INDICATED IN THE CONCHO VALLEY.

PERSONS IN AND NEAR THE WATCH AREA IN THE CONCHO VALLEY SHOULD KEEP A
WEATHER EYE OPEN FOR SIGNS OF DANGEROUS WEATHER AND TAKE COVER
IMMEDIATELY IF HAZARDOUS CONDITIONS ARE SIGHuTED.

KEEP LISTENING FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Apr 5, 8:21 PM CDT, 1 hour 56 minutes before
TXZ017-029-034-018-060230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
821 PM CDT THU APR 5 1990

THE TORNADO WATCH CONTINUES IN EFFECT FOR THE NORTHEAST CONCHO VALLEY
COUNTIES UNTIL MIDNIGHT.

AT 810 PM CDT RADAR INDICATED THUNDERSTORMS DEVELOPING BETWEEN BRONTE
AND WINTERS. MOVEMENT HAS BEEN TOWARD THE EAST AND THESE THUNDERSTORMS
SHOULD MOVE ACROSS NORTHERN RUNNELS COUNTY TOWARDS WINTERS IN THE NEXT
HOUR.

NO OTHER THUNDERSTORMS WERE DETECTED IN THE CONCHO VALLEY.

THE COLD FRONT IS NOW ENTERING THE NORTHERN CONCHO VALLEY. AT 8 PM CDT
THE FRONT HAD JUST SAGGED INTO NORTHERN RUNNELS AND COKE COUNTIES...
ALONG A LINE FROM NORTH OF WINTERS TO NEAR BRONTE AND ROBERT LEE THEN
NORTHWEST ACROSS NORTHERN STERLING COUNTY. THE FRONT WILL CONTINUE ITS
SOUTHWARD MOVEMENT DURING THE EVENING...FOLLOWED BY RAPID TEMPERATURE
DROPS AND GUSTY NORTHEAST WIND.

THE WINTERS POLICE DEPARTMENT REPORTED NEAR ZERO VISIBILITY IN BLOWING
DUST AT 815 PM CDT.

PERSONS IN THE WATCH AREA SHOULD WATCH FOR SIGNS OF THREATENING
WEATHER AND GO TO A SAFE PLACE IF DANGEROUS CONDITIONS APPROACH.

KEEP LISTENING FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Apr 5, 9:45 PM CDT, 32 minutes before
TXZ017-029-034-018-060345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
945 PM CDT THU APR 5 1990

THE TORNADO WATCH CONTINUES OVER THE NORTHEAST CONCHO VALLEY UNTIL
MIDNIGHT.

THE SEVERE THUNDERSTORM WARNING FOR EASTERN RUNNELS COUNTY EXPIRED AT
930 PM CDT.

AT 935 PM CDT RADAR SHOWED A LINE OF THUNDERSTORMS EXTENDING SOUTHWEST
FROM NORTHEAST OF BALLINGER TO NEAR CARLSBAD TO NEAR BIG LAKE. THE
STRONGEST STORM WAS MIDWAY BETWEEN MERTZON AND BARNHART. THE LINE HAD
SLOWED ITS FORWARD MOVEMENT AND WAS MOVING SOUTHEAST AT 15 MPH.

THE STRONG THUNDERSTORMS ARE LIKELY TO PRODUCE BRIEF HEAVY RAIN...
DANGEROUS LIGHTNING...GUSTY WIND AND POSSIBLY HAIL.

AT 920 PM CDT THE BALLINGER POLICE DEPARTMENT REPORTED PEA TO MARBLE
SIZE HAIL IN BALLINGER.

THE COLD FRONT WHICH IS PRECEDING THE LINE OF THUNDERSTORMS MOVED
THROUGH MATHIS FIELD IN SAN ANGELO ABOUT 930 PM CDT ACCOMPANIED BY
A DROP IN TEMPERATURE...IBLOWING DUST AND GUSTY NORTHEAST WINDS.

PERSONS BETWEEN BIG LAKE AND BALLINGER SHOULD WATCH FOR THREATENING
WEATHER AND TAKE COVER IF DANGEROUS CONDITIONS APPROACH.

KEEP LISTENING TO THE LATEST WEATHER INFORMATION.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 8:33 PM CDTSevere Thunderstorm WarningSJTRunnels57 min
Apr 5, 11:10 PM CDTSevere Thunderstorm WarningSJTSchleicher65 min

Nearby

Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990

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.