Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 13, NWS Fort Worth, TX

February 1, 1990Brazos County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Feb 1, 1990, 6:12 PM CST for Brazos County, Texas. It was in force for 48 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 1, 1990, 6:12 PM CST (00:12 UTC)
Expired
Feb 1, 1990, 7:00 PM CST
In force
48 min
Issued by
NWS Fort Worth, TX
Area
Whole counties

County Brazos County, TX

The radar

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

What was reported inside it

TimeReportWhereRemark
Feb 1, 6:12 PM CSTThunderstorm Wind 0Brazos, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 00:00Z, 0.2 hours before the alert went out and 243 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 1990-02-02Temperature 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, Stephenville/Cla, TX at 00:00Z on 1990-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -82 square meters per square second.1939587897117136Sfc1 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
1563 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-82 m²/s²
0-3 km storm-relative helicity
90 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 KACT 020013
SVRACT
TXC041-020100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WACO TX
612 PM CST THU FEB 1 1990
 
THE NATIONAL WEATHER SERVICE IN WACO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH CENTRAL TEXAS
          ...BRAZOS
 
AT 605 PM CST TV STATION IN BRYAN TEXAS REPORTED 60 MPH WIND AT THEIR
STATION.
 
A LINE OF SEVERE THUNDERSTORMS WAS NOTED FROM GROESBECK TO
BRYAN/COLLEGE STATION MOVING EAST AT 40 MILES AN HOUR.
 
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.

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, Feb 1, 3:32 PM CST, 2 hours 40 minutes before
TXZ031-037-012230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WACO TX
330 PM CST THU FEB 1 1990

...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM CST THIS EVENING FOR MUCH
   CENTRAL AND SOUTHCENTRAL TEXAS...

AT 325 PM CST WACO WEATHER RADAR SHOWED A LINE OF MODERATE SHOWERS AND
VERY STRONG THUNDERSTORMS MOVING INTO CENTRAL TEXAS.  THE LINE WAS FROM
JUST EAST OF GLEN ROSE TO WALNUT SPRING IN BOSQUE COUNTY TO 10 MILES WEST
OF GATESVILLE TO WEST OF AUSTIN.  THE STRONGEST THUNDERSTORM WITH VERY
HEAVY RAIN WAS IN WESTERN CORYELL COUNTY 15 MILES WEST SOUTHWEST OF
GATESVILLE.  THE LINE WAS MOVING EAST AT 15 MPH WHILE THE INDIVIDUAL
STORMS WERE MOVING NORTHEAST AT 40 MPH.  THESE STORMS ARE CAPABLE OF VERY
HEAVY RAIN...GUSTY WIND...DANGEROUS LIGHTNING...LARGE HAIL AND POSSIBLE
TORNADOES.  PERSONS IN CENTRAL AND SOUTHCENTRAL TEXAS SHOULD REMAIN ALERT
FOR THE POSSIBLITY OF SEVERE WEATHER AND BE PREPARED TO SEEK SHELTER IF
SEVERE WEATHER IS SIGHTED OR A WARNING IS ISSUED.
STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS.06
Special weather statement, Feb 1, 3:51 PM CST, 2 hours 21 minutes before
TXZ019>033-020300-

SEVERE WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FT WORTH TX
350 PM CST THU FEB 1 1990

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS OVER THE SOUTHEAST
ONE THIRD OF NORTH TEXAS FOR THE REMAINDER OF THIS AFTERNOON AND
TONIGHT. THE AREA OF MODERATE RISK IS GENERALLY SOUTHEAST OF A LINE
FROM PARIS TO CORSICANA TO LAMPASAS. THIS INCLUDES THE CITIES OF
TYLER...LONGVIEW...LUFKIN...WACO AND TEMPLE.

AT MID AFTERNOON THUNDERSTORMS WERE CONTINUING FROM SOUTHWEST
ARKANSAS AND NORTHWEST LOUISIANA SOUTH TO THE HOUSTON AREA IN
SOUTHEAST TEXAS. A RAIN-COOLED BOUNDARY EXTENDED FROM THE HOUSTON
AREA WEST TO NEAR AUSTIN. ADDITIONAL THUNDERSTORMS WERE DEVELOPING
AT MID AFTERNOON OVER PARTS OF SOUTH CENTRAL TEXAS... FROM LAMPASAS
SOUTH TO THE HILL COUNTRY.... DUE IN PART TO A STRONG UPPER LEVEL
SYSTEM MOVING ACROSS THE REGION. SOME SMALL HAIL HAS BEEN REPORTED
WITH SOME OF THE THUNDERSTORMS IN THE HILL COUNTRY...AND A TORNADO
WAS REPORTED NEAR COTULLA.

THE BEST CHANCES FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT
EXIST ALONG AND NEAR THE RAIN-COOLED BOUNDARY OVER THE SOUTH PART OF
NORTH CENTRAL AND NORTHEAST TEXAS...DUE IN PART TO THE STRONGER INFLOW
AND HIGHER MOISTURE CONTENT AVAILABLE IN THAT REGION. THE STRONG UPPER
LEVEL SYSTEM WILL TEND TO ENHANCE THUNDERSTORM DEVELOPMENT ALONG THIS
BOUNDARY. THUS A TORNADO WATCH HAS BEEN ISSUED UNTIL 900 PM FOR
PARTS OF CENTRAL AND EAST TEXAS.

IN NORTH CENTRAL TEXAS...THE WATCH INCLUDES FREESTONE...ANDERSON...
AND CHEROKEE COUNTIES.

OVER THE NORTH PART OF NORTH CENTRAL TEXAS...THE RAIN-COOLED AIR LEFT
OVER FROM THE PASSAGE OF THUNDERSTORMS THIS MORNING OFFERS A LESS
FAVORABLE ENVIRONMENT FOR SEVERE THUNDERSTORMS. SOME THUNDERSTORMS
COULD PRODUCE SMALL HAIL OVER THE NORTH PARTS OF NORTH CENTRAL AND
NORTHEAST TEXAS DUE TO THE STRENGTH OF THE UPPER LEVEL SYSTEM.
BRIEF HEAVY RAINS COULD ALSO OCCUR...AND A FLASH FLOOD WATCH
REMAINS IN EFFECT FOR TONIGHT FOR MUCH OF THE EASTERN THIRD OF NORTH
TEXAS.

SPOTTERS AND EMERGENCY MANAGEMENT OFFICIALS OVER NORTHEAST TEXAS
WILL WANT TO KEEP IN TOUCH WITH LATEST WEATHER DEVELOPEMENTS TONIGHT.

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 1, 6:04 PM CSTSevere Thunderstorm WarningFWDNavarro56 min
Feb 1, 6:24 PM CSTSevere Thunderstorm WarningFWDLeon, Madison51 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.