Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 21, NWS Fort Worth, TX

February 9, 1990Limestone County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Feb 9, 1990, 2:59 PM CST for Limestone County, Texas. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Feb 9, 1990, 2:59 PM CST (20:59 UTC)
Expired
Feb 9, 1990, 3:40 PM CST
In force
41 min
Issued by
NWS Fort Worth, TX
Area
Whole counties

County Limestone 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, 9.0 hours before the alert went out and 162 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 1990-02-09Temperature 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 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 1990-02-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 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
NaN m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KACT 092100
SVRACT
TXC293-092200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WACO TX
259 PM CST FRI FEB 9 1990
 
THE NATIONAL WEATHER SERVICE IN WACO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  400 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTH CENTRAL TEXAS
          ...SOUTHERN LIMESTONE
 
AT 3 PM CST RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM IN SOUTHERN
LIMESTONE COUNTY...MOVING NORTHEAST 45 MILES AN HOUR.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 9, 11:31 AM CSTSevere Thunderstorm WarningFWDHill59 min
Feb 9, 12:21 PM CSTSevere Thunderstorm WarningFWDHamilton39 min
Feb 9, 12:44 PM CSTSevere Thunderstorm WarningFWDJohnson61 min
Feb 9, 1:03 PM CSTSevere Thunderstorm WarningFWDEllis57 min
Feb 9, 1:16 PM CSTSevere Thunderstorm WarningFWDBosque, Hill59 min
Feb 9, 1:30 PM CSTSevere Thunderstorm WarningFWDKaufman60 min
Feb 9, 3:14 PM CSTSevere Thunderstorm WarningFWDFreestone46 min
Feb 9, 3:54 PM CSTSevere Thunderstorm WarningFWDAnderson66 min
Feb 9, 4:11 PM CSTSevere Thunderstorm WarningFWDCherokee64 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.