Alert archive / Texas / Tornado Warnings in 1990

Tornado Warning 1, NWS San Angelo, TX

April 1, 1990Runnels County, Texas

NWS San Angelo, TX issued this tornado warning at Apr 1, 1990, 4:11 PM CDT for Runnels County, Texas. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Apr 1, 1990, 4:11 PM CDT (21:11 UTC)
Expired
Apr 1, 1990, 5:00 PM CDT
In force
49 min
Issued by
NWS San Angelo, TX
Area
Whole counties

County Runnels 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

Stephenville/Cla, TX (KSEP), launched 12:00Z, 9.2 hours before the alert went out and 182 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 1990-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 111 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 1990-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
111 J/kg
Mixed-layer CIN
-175 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSJT 012113
TORSJT
TXC399-012200-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
411 PM CDT SUN APR 1 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  500 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES
 
IN NORTH CENTRAL TEXAS
 
   ...NORTHERN RUNNELS COUNTY
 
AT 410 PM CDT THE POLICE DEPARTMENT IN WINTERS REPORTED A TORNADO ON
THE GROUND 6 MILES SOUTHEAST OF WINTERS MOVING TO THE NORTHEAST.
PERSONS IN NORHTERN RUNNELS COUNTY SHOULD TAKE IMMEDIATE ACTION TO
MOVE TO SHELTER.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH& OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.

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, Apr 1, 2:37 PM CDT, 1 hour 34 minutes before
TXZ012-015-019-024-029-030-012100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABILENE TX
235 PM CDT SUN APR 1 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM THIS EVENING
   FOR THE FOLLOWING COUNTIES OF THE BIG COUNTRY...TAYLOR...SCURRY...
   FISHER...MITCHELL...NOLAN...

AT 230 PM CDT THUNDERSTORMS WERE OCCURRING IN WESTERN SECTIONS OF THE
BIG COUNTRY WEST OF A LINE FROM ROTAN TO MERKEL TO WINTERS. HEAVY RAIN
WAS FALLING BETWEEN MARYNEAL AND BLACKWELL. MOVEMENT WAS TO THE NORTH-
NORTHEAST 25 MILES AN HOUR.

PERSON ACROSS THE BIG COUNTRY SHOULD BE ALERT FOR POSSIBLE SEVERE
WEATHER THIS EVENING. BE PREPARED TO GO TO A SAFE PLACE IF
THREATENING WEATHER IS SIGHTED OR	 IF A WARNING IS ISSUED.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Apr 1, 2:45 PM CDT, 1 hour 26 minutes before
TXZ016-TXZ017-TXZ018-021945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
241 PM CDT SUN APR 1 1990

THE NATIONAL WEATHER SERVICE HAS A ISSUED A SEVERE THUNDERSTORM WATCH
FOR THIS AFTERNOON AND TONIGHT UNTIL 8 PM CDT FOR THE FOLLOWING
COUNTIES OF THE CONCHO VALLEY
...CROCKETT...REAGAN...STERLING...COKE...CONCHO...RUNNELS...TOM
GREEN...IRION...AND SCHLEICHER.

AT 230 PM CDT RADAR INDICATED SCATTERED THUNDERSTORMS DEVELOPING IN
THE WESTERN COUNTIES OF THE CONCHO VALLEY. THE STRONGEST THUNDERSTORMS
WERE INDICATED IN SOUTHWEST STERLING..AND NORTHEAST CROCKETT COUNTIES.
THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 15 MPH.

REMEMBER A SEVERE THUNDERSTORM7 WATCH MEANS THAT THE THREAT OF SEVERE
WEATHER EXISTS IN AND NEAR THE WATCH AREA. IF THREATENING COONDITIONS
ARE SIGHTED TAKE COVER IMMEDIATELY.

STAY TUNED TO YOUR LOCAL TV..RADIO AND NOAA WEATHER RADIO FOR THE
LATEST INFORMATION.
Special weather statement, Apr 1, 3:50 PM CDT, 21 minutes before
TXZ016-017-029-034-018-012245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
348 PM CDT SUN APR 1 1990

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE WESTERN TWO
THIRDS OF THE CONCHO VALLEY UNTIL 800 PM CDT...

AT 340 PM CDT SAN ANGELO RADAR SHOWED THUNDERSTORMS ACROSS THE WESTERN
CONCHO VALLEY. THE STRONGEST THUNDERSTORMS WERE LOCATED IN NORTHERN
SCHLEICHER COUNTY NORTHWEST OF ELDORADO...EAST OF OZONA...AND IN
NORTHERN IRION AND REAGAN COUNTIES. THESE THUNDERSTORMS WERE MOVING
NORTHEAST AT 20 MILES AN HOUR AND ARE LIKELY PRODUCING HEAVY RAIN...
GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLY HAIL. IF YOU ARE IN THE
PATH OF THESE STORMS BE ALERT FOR THREATENING WEATHER AND PREPARED TO
TAKE COVER IF NECESSARY.

REMEMBER...A SEVERE THUNDERTORM WATCH MEANS THAT CONDITIONS ARE
FAVORABLE FOR THE FORMATION OF SEVERE THUNDERSTORMS IN AND NEAR THE
WATCH AREA. KEEP LISTENING TO YOUR NOAA WEATHER RADIxO OR YOUR LOCAL
RADIO AND TELEVISION STATIONS FOR FURTHER WEATHER UPDATES OR POSSIBLE
WARNINGS.

Nearby

Tornado Warnings in Texas, 1990Every tornado warning in 1990Tornadoes 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.