Alert archive / Texas / Tornado Warnings in 1989

Tornado Warning 2, NWS Houston/Galveston, TX

April 30, 1989Galveston County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Apr 30, 1989, 2:21 AM CDT for Galveston County, Texas. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Apr 30, 1989, 2:21 AM CDT (07:21 UTC)
Expired
Apr 30, 1989, 3:15 AM CDT
In force
54 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Galveston 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

Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.4 hours before the alert went out and 180 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, Lake Charles Mun, LA at 00:00Z on 1989-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2157 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, Lake Charles Mun, LA at 00:00Z on 1989-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.193958Sfc1 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
2157 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
915 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 29, 10:15 PM CDT, 4 hours 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
1020 PM CDT SAT APR 29 1989

...LINE OF VERY STRONG THUNDERSTORMS APPROACHING SOUTHEAST TEXAS...

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL MIDNIGHT FOR PART OF
SOUTH CENTRAL TEXAS...INCLUDING COLORADO...AUSTIN...WASHINGTON...GRIMES AND
HOUSTON COUNTIES...

WEATHER SERVICE RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS FROM
NEAR VICTORIA TO NEAR COLLEGE STATION TO CROCKETT.  THESE STORMS WERE
MOVING EAST AT 15 TO 20 MPH.

MANY OF THESE THUNDERSTORMS CAUSED SEVERE WEATHER THROUGHOUT THE HILL
COUNTRY...SAN ANTONIO...AUSTIN AND WACO AREAS EARLIER THIS EVENING.
STRONG GUSTY WINDS...HEAVY RAIN...DANGEROUS LIGHTNING AND HAIL CAN BE
EXPECTED WITH THE PASSAGE OF THESE STORMS.

LOCATIONS IN SOUTHEAST TEXAS THAT WILL PROBABLY BE AFFECTED BY MIDNIGHT
INCLUDE CROCKETT...HUNTSVILLE...BRENHAM...BELLVILLE AND COLUMBUS.

PEOPLE IN SOUTHEAST TEXAS ARE URGED TO STAY TUNED TO NOAA WEATHER RADIO...
LOCAL RADIO OR TELEVISION STATIONS TO GET UP TO THE MINUTE INFORMATION
ON THIS SEVERE WEATHER EVENT.
Special weather statement, Apr 29, 11:38 PM CDT, 2 hours 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
1140 PM CDT SAT APR 29 1989

...THUNDERSTORMS APPROACHING SOUTHEAST TEXAS ARE WEAKENING...

...THE SEVERE THUNDERSTORM WATCH FOR PART OF SOUTH CENTRAL TEXAS...
INCLUDING COLORADO...AUSTIN...WASHINGTON...GRIMES AND HOUSTON COUNTIES...
EXPIRES AT MIDNIGHT...

THE LINE OF STRONG THUNDERSTORMS THAT AFFECTED PARTS OF SOUTH CENTRAL AND
EAST TEXAS EARLIER TONIGHT HAVE WEAKENED AS THEY APPROACH SOUTHEAST TEXAS.
WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS FROM COLUMBUS TO SOUTH
OF VICTORIA.  THE STRONGEST STORM WAS ABOUT 20 MILES SOUTH OF COLUMBUS.
OTHER THUNDERSTORMS WERE FROM WEST OF HUNTSVILLE TO NEAR CROCKETT.
MOVEMENT WAS EAST AT 15 TO 20 MPH.

STAY TUNED TO YOUR NOAA WEATHER RADIO...LOCAL RADIO OR TELEVISION FOR
ADDITIONAL STATEMENTS.
Special weather statement, Apr 30, 12:52 AM CDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
1140 PM CDT SAT APR 29 1989

...THUNDERSTORMS APPROACHING SOUTHEAST TEXAS ARE WEAKENING...

...THE SEVERE THUNDERSTORM WATCH FOR PART OF SOUTH CENTRAL TEXAS...
INCLUDING COLORADO...AUSTIN...WASHINGTON...GRIMES AND HOUSTON COUNTIES...
EXPIRES AT MIDNIGHT...

THE LINE OF STRONG THUNDERSTORMS THAT AFFECTED PARTS OF SOUTH CENTRAL AND
EAST TEXAS EARLIER TONIGHT HAVE WEAKENED AS THEY APPROACH SOUTHEAST TEXAS.
WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS FROM COLUMBUS TO SOUTH
OF VICTORIA.  THE STRONGEST STORM WAS ABOUT 20 MILES SOUTH OF COLUMBUS.
OTHER THUNDERSTORMS WERE FROM WEST OF HUNTSVILLE TO NEAR CROCKETT.
MOVEMENT WAS E5AST AT 15 TO 20 MPH.

STAY TUNED TO YOUR NOAA WEATHER RADIO...LOCAL RADIO OR TELEVISION FOR
ADDITIONAL STATEMENTS.
Special weather statement, Apr 30, 1:02 AM CDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
102 AM CDT SUN APR 30 1989

...LINE OF THUNDERSTORMS MOVING INTO SOUTHEAT TEXAS CONTINUES TO WEAKEN..

AT 1 AM...THE MOST ACTIVE PART OF THE LINE OF THUNDERSTORMS WAS MOVING
INTO WESTERN HARRIS AND FORT-BEND COUNTIES..MOVING EAST AT 20 MPH.
INTENSITIES CONTINUE TO WEAKEN. HOWEVER MUCH OF THE GREATER HOUSTON
AREA AND FORT-BEND COUNTIES CAN EXPECT SOME BRIEFLY HEAVY RAINS AND
GUSTY WINDS ALONG WITH FREQUENT LIGHTNING BETWEEN 1 AND 2 AM AS THE
THUNDERSTORMS MOVE THROUGH THE AREA.

ELSEWHERE...SHOWERS AND THUNDERSHOWERS STRETCH FROM THE COAST AT
PALACIOS...PAST THE HUNTSVILLE AREA AND NORTHWARD TOWARDS LONGVIEW.
THIS LARGE AREA OF RAIN AND IMBEDDED THUNDERSHOWERS WILL CONTINUE
TO SPREAD EASTWARD INTO MUCH OF SOUTHEAST TEXAS DURING THE EARLY
MORNING HOURS.  BUT WITH INTENSITIES EXPECTED TO FURTHER DIMINISH
MANY COUNTIES MAY ONLY GET SOME LIGHT RAINS...AND SOME MAY NOT
RECEIVE JANY.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 1:42 AM CDTSevere Thunderstorm WarningHGXHarris, Liberty63 min
Apr 30, 3:04 AM CDTSevere Thunderstorm WarningHGXChambers56 min

Nearby

Tornado Warnings in Texas, 1989Every tornado warning in 1989Tornadoes in 1989

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.