Alert archive / Texas / Tornado Warnings in 1990

Tornado Warning 4, NWS Houston/Galveston, TX

April 14, 1990Matagorda County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Apr 14, 1990, 11:09 AM CDT for Matagorda County, Texas. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Apr 14, 1990, 11:09 AM CDT (16:09 UTC)
Expired
Apr 14, 1990, 12:15 PM CDT
In force
66 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Matagorda 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

Corpus Christi, TX (KCRP), launched 12:00Z, 4.2 hours before the alert went out and 176 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 12:00Z on 1990-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1686 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 12:00Z on 1990-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 square meters per square second.19395878Sfc1 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
1686 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHOU 141610
TORHOU
TXC321-141715-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON TX
1109 AM CDT SAT APR 14 1990
 
THE NATIONAL WEATHER SERVICE IN HOUSTON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST TEXAS
 
   ...MATAGORDA COUNTY
 
FOR THE COASTAL WATERS ADJACENT TO MATAGORDA AND BRAZORIA COUNTIES
 
 
AT 1100 AM THE MATAGORDA COUNTY SHERIFFS DEPARTMENT REPORTED SEVERAL
FUNNEL CLOUDS HAD BEEN REPORTED IN THE BAY CITY AREA. A FUNNEL CLOUD
WAS IN SIGHT NORTHWEST OF BAY CITY MOVING SOUTHEAST.
 
RADAR SHOWS STRONG THUNDERSTORMS IN THE BAY CITY AREA MOVING SOUTHEAST
40 MPH.
 
IF YOU ARE CAUGHT OUTSID*E...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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 14, 6:20 AM CDT, 4 hours 49 minutes before
TXZ047-037-032-045-046-047-141215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
618 AM CDT SAT APR 14 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR PARTS OF CENTRAL AND EAST TEXAS THIS MORNING UNTIL 9 AM. THE WATCH
INCLUDES THE FOLLOWING COUNTIES IN SOUTHEAST TEXAS...AUSTIN..COLORADO
..WASHINGTON...GRIMES...WALKER...WALLER..MONTGOMERY...SAN JACINTO...
..POLK...HOUSTON...AND TRINITY.

THE WATCH DOES NOT INCLUDE THE HOUSTON...GALVESTON AREA.

JUST AFTER 6 AM...RADAR SHOWS THE SIGNIFICANT THUNDERSTORM ACTIVITY
STILL WEST AND NORTHWEST OF THE ABOVE COUNTIES...ROUGHLY IN THE AREA
FROM NEAR AUSTIN TO WACO.  THESE THUNDERSTORMS WILL DEVELOPE AND
SPREAD TO THE SOUTHEAST THIS MORNING AND RESIDENTS IN THE WATCH AREAS
SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER APPROACHING FROM THE
WEST OR NORTHWEST...AND BE READY TO TAKE PROTECTIVE ACTION SHOULD
WARNINGS BE ISSUED.

STAY TUNED TO YO-UR WEATHER RADIO...LOCAL RADIO AND TV...FOR FUTHER
BULLETIENS THROUGHOUT THIS THREAT.
Special weather statement, Apr 14, 7:36 AM CDT, 3 hours 33 minutes before
TXZ047-037-032-045-046-047-141215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
735 AM CDT SAT APR 14 1990

...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR A PORTION OF
SOUTHEAST TEXAS THIS MORNING UNTIL 9 AM. THE WATCH INCLUDES THE FOLLOWING
COUNTIES IN SOUTHEAST TEXAS...AUSTIN..COLORADO...WASHINGTON...GRIMES..
WALKER...WALLER..MONTGOMERY...SAN JACINTO...POLK..HOUSTON..AND TRINITY..

THE WATCH DOES NOT INCLUDE THE HOUSTON...GALVESTON AREA.

AT 730 AM...RADAR SHOWS A LINE OF THUNDERSTORMS APPROACHING SOUTHEAST
TEXS FROM THE NORTHWEST....FROM NEAR COLLEGE STATION TO ABOUT 20 MILES
NORTHWEST OF CROCKET.  THE LINE OF TUNDERSTORMS WAS MOVING TO THE SOUTHEAST
AT 30 MPH.  IT WILL BE MOVING IN HOUSTON COUNTY SHORTLY...THEN INTO WASHINGTON
...GRIMES...WALKER..AND TRINITY COUNTIES BETWEEN 8 AM AND 9 AM.  RESIDENTS
IN THESE COUNTIES SHOULD BE ALERT FOR THREATENING WEATHER CONDITIONS APPROACHINGFROM THE NORTHWEST AND LISTEN TO YOUR WEATHER RADIO FOR POSSIBLE WARNINGS.
Special weather statement, Apr 14, 8:06 AM CDT, 3 hours 3 minutes before
TXZ047-037-032-045-046-047-141215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
807 AM CDT SAT APR 14 1990

...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR A PORTION OF
SOUTHEAST TEXAS THIS MORNING UNTIL 9 AM. THE WATCH INCLUDES THE FOLLOWING
COUNTIES IN SOUTHEAST TEXAS...AUSTIN..COLORADO...WASHINGTON...GRIMES..
WALKER...WALLER..MONTGOMERY...SAN JACINTO...POLK..HOUSTON..AND TRINITY..

THE WATCH DOES NOT INCLUDE THE HOUSTON...GALVESTON AREA.

AT 800 AM...THE LINE OF THUNDERSTORMS MOVING INTO SOUTHEAST TEXAS HAS
PICKED UP FORWARD SPEEND AND WAS SWEEPING SOUTHEAST AT NEAR 50 MPH.
INTENSITIES OF THE STORMS APPEAR TO BE BELOW SEVERE LEVEL CATEGORIES..HOWEVER
RESIDENTS IN THE COUNTIES UNDER THE WATCH AREA SHOULD STAY ALERT FOR POSSIBLE
SEVERE WEATHER OR WARNINGS.

THE LINE WILL MOVE THROUGH MOST OF WASHINGTON...GRIMES...WALKER..AND HOUSTON
AND TRINITY OVER THE NEXT HOUR TO EXPIRATION TIME OF THE WATCH.
BOATERS ON AREA LAKES SHOULD HEAD FOR SAFE HARBOUR UNTIL THE LINE OF
STORMS PASSES THROUGH.  CAMPERS ON THE LAKE SHOULD BE ALERT FOR STRONG
GUSTY WINDS AND DANGEROUS LIGHTNING STRIKES.

ON THIS TRACK THE LINE OF THUNDERSTORMS WILL BE AFFECTING LAKE LIVINGSTON@
BY ABOUT 9...AND SHOULD THE LINE HOLD TOGETHER AND CONTINUE AT THIS SPEED
THUNDERSTORMS COULD BE MOVING THROUGH THE HOUSTON AREA BETWEEN 9 AND 10 AM.

STAY TUNED TO YOUR WEATHER RADIO..LOCAL RADIO AND TV...FOR FURTHER UPDATES.
Special weather statement, Apr 14, 8:39 AM CDT, 2 hours 30 minutes before
TXZ045-046-047-141215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
840 AM CDT SAT APR 14 1990

...THE SEVERE THUNDERSTORM WATCH FOR PARTS OF SOUTHEAST TEXAS WILL EXPIRE
AT 9M....

...LINE OF THUNDERSTORMS MOVING RAPIDLY THROUGH SOUTHEAST TEXAS...WEAKENING
IN SOME AREAS...

AT 840 AM...RADAR SHOWS THE LINE OF THUNDERSTORMS HAS MOVED THROUGH MOST OF
THE COUNTIES UNDER THE WATCH...MOVING SOUTHEAST AT NEAR 50 MPH.  INTENSITIES
OF STORMS IN THE LINE HAVE WEAKENED IN MOST SECTIONS...BUT STILL FAIRLY STRONG
IN THE COUNTIES OF HARRIS...MONTGOMERY...SAN JACINTO..LIBERTY AND POLK.

AT THIS SPEED AND TRACK THE LINE OF THUNDERSTORMS WILL MOVE THROUGH THE
HOUSTON AREA WITHIN THE NEX{T 30 TO 40 MINUTES...AND PAST HARRIS AND LIBERTY
COUNTIES BY ABOUT 930 AM.
STAY TUNED FOR FURTHER UPDATES.
Special weather statement, Apr 14, 8:58 AM CDT, 2 hours 11 minutes before
TXZ045-046-047-141215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
858 AM CDT SAT APR 14 1990

...LINE OF THUNDERSTORMS MOVING THROUGH HOUSTON....

THE FAST MOVING LINE OF THUNDERSTORMS WAS MOVING THROUGH NORTHERN HARRIS
COUNTY JUST BEFORE 9 AM...AND THERE HAVE BEEN REPORTS OF SOME TREE LIMBS DOWN
AND SMALL HAIL IN THAT PORTION OF THE COUNTY.  NO MAJOR DAMAGE REPORTS RECEIVED.
THE STRONGEST THUNDERSTORMS IN THE LINE STRETCH THROUGH NORTH HARRIS COUNTY
..INTO SOUTHEAST MONTGOMERY...SAN-JACINTO...AND POLK COUNTIES...MOVING TO
THE SOUTHEAST 40 TO 50 MPH.  RESIDENTS IN THESE COUNTIES CAN EXPECT STRONG
GUSTY WINDS...BRIEFLY HEAVY RAINS AND FREQUENTS LIGHTNING STRIKES OVER THE
NEXT 30 MINUTES OR SO AS THE THUNDERSTORMS MOVE RAPIDLY THROUGH.

STAY TUNED TO YOUR WEATHER RADIO..LOCAL RADIO OR TV...FOR FURTHER UPDATES.
Special weather statement, Apr 14, 9:02 AM CDT, 2 hours 7 minutes before
TXZ048-141700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GALVESTON TX
900 AM CDT SAT APR 14 1990

   ...LINE OF THUNDERSTORMS MOVING TOWARDS THE UPPER COAST...

AT 900 AM CDT..A LINE OF STRONG THUNDERSTORMS... EXTENDING ACROSS
THE COASTAL PLAINS WAS APPROACHING THE COAST AT 40 TO 50 MILES
AN HOUR.

SMALL HAIL AND THUNDERSTORM WIND GUSTS BLOWING DOWN TREE LIMBS
HAVE BEEN REPORTED WITH THESE STORMS.

THESE THUNDERSTORMS WILL PRODUCE BRIEF HEAVY RAINS..STRONG GUSTY
WINDS AND FREQUENT LIGHTNING. PERSONS IN THE PATH OF THESE
DANGEROUS STORMS SHOULD SEEK SHELTER INDOORS AWAY FROM OPEN WINDOWS.

MARINE INTERESTS ON GALVESTON BAY AND THE COASTAL WATERS SHOULD BE
ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND SHOULD NOT VENTURE
FAR FROM PORT.

STAY TUNED TO LOCAL RADIO..TV OR THIS NOAA WEATHER RADIO STATION
FOR FURTHER STATEMENTS WHICH WILL BE ISSUED AS REQUIRED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 9:30 AM CDTSevere Thunderstorm WarningHGXChambers90 min
Apr 14, 9:42 AM CDTSevere Thunderstorm WarningHGXGalveston78 min
Apr 14, 10:15 AM CDTSevere Thunderstorm WarningHGXBrazoria, Matagorda60 min

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.