Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 13, NWS Houston/Galveston, TX

April 5, 1994Fort Bend County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 5, 1994, 10:00 PM CDT for Fort Bend County, Texas. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Apr 5, 1994, 10:00 PM CDT (03:00 UTC)
Expired
Apr 5, 1994, 10:30 PM CDT
In force
30 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Fort Bend County, TX

The radar

The Houston radar (KHGX), 67 km from the middle of the area, began a volume at 03:03 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 3.0 hours before the alert went out and 252 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, Corpus Christi, TX at 00:00Z on 1994-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1826 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, Corpus Christi, TX at 00:00Z on 1994-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -84 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
1826 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-84 m²/s²
0-3 km storm-relative helicity
-27 m²/s²
Significant tornado parameter
-0.7
Supercell composite
-3.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHOU 060302
SVRHOU
TXC157-060330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON TX
1000 PM CDT TUE APR 5 1994
 
THE NATIONAL WEATHER SERVICE IN HOUSTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST TEXAS
 
   ...EASTERN FORT BEND COUNTY
 
AT 955 PM A SEVERE THUNDERSTORM WAS LOCATED IN EASTERN FORT BEND COUNTY
FROM SUGARLAND SOUTH TO NEAR THOMPSONS. THIS STORM WAS MOVING EAST AT 45
MPH. LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THIS STORM.
 
 
 
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.

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.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 5, 8:33 PM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Apr 5, 8:33 PM CDT, 1 hour 27 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON, TX
833 PM CDT TUE APR 5 1994

SVR TO STG THUNDERSTORMS CONTINUE TO FIRE ALONG THE COLD FRONT
WITH LI'S OF -6 AND CAPE OF 1100.  HELCITY VALUES ARE AROUND 170 WITH
MAX VALUES OF 250 WITH ANY RIGHT TURNING OF THE STORM.  SEVERAL
LOCATIONS HAVE REPORTED 1 INCH TO GOLF BALL SIZED HAIL  THEREFORE ONLY
CHANGES WILL BE TO DROP SVR TSTM AND POPS ON THE NORTH SIDE OF THE
LINE. 44

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 5, 7:46 PM CDTSevere Thunderstorm WarningHGXAustin, Colorado44 min
Apr 5, 8:17 PM CDTSevere Thunderstorm WarningHGXColorado58 min
Apr 5, 8:22 PM CDTSevere Thunderstorm WarningHGXWaller38 min
Apr 5, 8:58 PM CDTSevere Thunderstorm WarningHGXAustin, Fort Bend, Wharton62 min
Apr 5, 9:56 PM CDTSevere Thunderstorm WarningHGXBrazoria64 min
Apr 5, 10:19 PM CDTSevere Thunderstorm WarningHGXGalveston, Harris56 min

Nearby

Severe Thunderstorm Warnings in Texas, 1994Every severe thunderstorm warning in 1994

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; radar from the NEXRAD Level II archive.