Alert archive / Texas / Tornado Warnings in 1997

Tornado Warning 4, NWS Houston/Galveston, TX

January 27, 1997Harris County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Jan 27, 1997, 3:46 PM CST for Harris County, Texas. It was in force for 59 min. 3 reports 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
Jan 27, 1997, 3:46 PM CST (21:46 UTC)
Expired
Jan 27, 1997, 4:45 PM CST
In force
59 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Harris County, TX

The radar

The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 21:46 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.

What was reported inside it

TimeReportWhereRemark
Jan 27, 3:49 PM CSTTornado F0Deer Park, TX
Jan 27, 3:53 PM CSTTornado F0Deer Park, TX
Jan 27, 4:15 PM CSTHail 0.75Houston, 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.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.8 hours before the alert went out and 213 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 12:00Z on 1997-01-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 531 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 12:00Z on 1997-01-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
531 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
480 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
208 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 KHOU 272146 RRA
TORHOU
TXC201-272245-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
346 PM CST MON JAN 27 1997
 
THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  445 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST TEXAS
 
   ...EASTERN HARRIS COUNTY
 
AT 345...DOPPLER RADAR AND STORM SPOTTERS INDICATE A TORNADIC
THUNDERSTORM OVER PASADENA HEADING NORTHEAST AT 20 MPH. DEER PARK AND
THE SHIP CHANNEL ARE IN THE PATH OF THIS TORNADO.
 
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO... GO TO A SMALL INTERIOR ROOM ON
THE LOWEST FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND
MOBILE HOMES FOR A REINFORCED BUILDING.  AS A LAST RESORT GET
INTO A DITCH OR CULVERT.
 
 
 
&

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.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this tornado warning went out at Jan 27, 9:40 AM CST, 6 hours 6 minutes earlier.

Area forecast discussion, Jan 27, 9:40 AM CST, 6 hours 6 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
940 AM CST MON JAN 27 1997

THE THREAT OF SEVERE WEATHER AND LOCALLY HEAVY RAINFALL STILL APPEARS
TO BE SHAPING UP FOR SOUTHEAST TEXAS THIS AFTERNOON AND ON INTO
TONIGHT.  SEE SPCS UPDATED DAY 1 OUTLOOK FOR REASONING.  CONSENSUS
APPEARS TO BE FAVORING A FASTER FRONTAL MOVEMENT...AND THE CURRENT
FORECAST COVERS THIS SCENARIO WELL.  WILL UPDATE THE SPSHOU WITHIN
THE NEXT HOUR.

42

In the hours before

Special weather statement, Jan 27, 11:19 AM CST, 4 hours 27 minutes before
TXZ176>179-195>200-210>214-226-227-235>238-511-513-280300-

SEVERE WEATHER AND HEAVY RAINFALL OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1120 AM CST MON JAN 27 1997

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS AND HEAVY RAINFALL
ACROSS ALL OF SOUTHEAST TEXAS FOR THIS AFTERNOON AND EVENING.

AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL CONTINUE TO DEEPEN OVER
WEST TEXAS AS AN UPPER LEVEL DISTURBANCE PUSHES OUT OF THE LOW AND
TOWARD EAST TEXAS BY LATE THIS AFTERNOON.  THIS WILL DRAG A STRONG
COLD FRONT LOCATED NEAR THE RED RIVER VALLEY INTO SOUTHEAST TEXAS BY
EARLY EVENING...THEN OFF THE UPPER TEXAS COAST SHORTLY AFTER
MIDNIGHT.  HELPING TO ENHANCE THE UNSTABLE ATMOSPHERE OUT AHEAD OF
THE FRONT WILL BE A CONTINUED INFLUX OF GULF MOISTURE...HOLDING
DEWPOINTS IN THE MID TO UPPER 60S.

THE COMBINATION OF A STRONG COLD FRONT AND UPPER LEVEL DISTURBANCE
COUPLED WITH A VERY MOIST AND UNSTABLE SOUTHEAST TEXAS AIRMASS WILL
PRODUCE STRONG THUNDERSTORMS...SOME OF WHICH COULD BECOME SEVERE WITH
LOCALLY HEAVY RAINS.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA BY
MID AFTERNOON AS AN INCREASINGLY UNSTABLE ATMOSPHERE INTERACTS WITH
AFTERNOON HEATING IN THE MID 70S.  THESE STORMS WILL BECOME MORE
WIDESPREAD BY EARLY EVENING AS THE COLD FRONT AND UPPER LEVEL
DISTURBANCE DRAW NEAR.  THE PRIMARY THREAT OF SEVERE WEATHER WILL BE
LARGE HAIL AND DAMAGING WINDS.

ABUNDANT LOW LEVEL MOISTURE COUPLED WITH REDEVELOPING STORMS WILL
MAKE HEAVY RAINFALL A POSSIBILITY.  RAINFALL AMOUNTS WILL AVERAGE
NEAR 1 INCH WITH ISOLATED AMOUNTS BETWEEN 2 TO 3 INCHES POSSIBLE
AROUND STRONGER THUNDERSTORMS.

STORM SPOTTERS SHOULD STAY ALERT FOR POSSIBLE ACTIVATION LATER THIS
AFTERNOON OR THIS EVENING.  MARINERS SHOULD PREPARE FOR POSSIBLE
STRONG OR SEVERE THUNDERSTORMS ACROSS THE BAYS OR THE GULF AS WELL.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL OR CABLE TELEVISION...
OR LOCAL RADIO STATIONS FOR FURTHER STATEMENTS OR WARNINGS CONCERNING
THIS DEVELOPING WEATHER SITUATION.
Special weather statement, Jan 27, 11:20 AM CST, 4 hours 26 minutes before
TXZ176>179-195>200-210>214-226-227-235>238-511-513-280300-

SEVERE WEATHER AND HEAVY RAINFALL OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1120 AM CST MON JAN 27 1997

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS AND HEAVY RAINFALL
ACROSS ALL OF SOUTHEAST TEXAS FOR THIS AFTERNOON AND EVENING.

AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL CONTINUE TO DEEPEN OVER
WEST TEXAS AS AN UPPER LEVEL DISTURBANCE PUSHES OUT OF THE LOW AND
TOWARD EAST TEXAS BY LATE THIS AFTERNOON.  THIS WILL DRAG A STRONG
COLD FRONT LOCATED NEAR THE RED RIVER VALLEY INTO SOUTHEAST TEXAS BY
EARLY EVENING...THEN OFF THE UPPER TEXAS COAST SHORTLY AFTER
MIDNIGHT.  HELPING TO ENHANCE THE UNSTABLE ATMOSPHERE OUT AHEAD OF
THE FRONT WILL BE A CONTINUED INFLUX OF GULF MOISTURE...HOLDING
DEWPOINTS IN THE MID TO UPPER 60S.

THE COMBINATION OF A STRONG COLD FRONT AND UPPER LEVEL DISTURBANCE
COUPLED WITH A VERY MOIST AND UNSTABLE SOUTHEAST TEXAS AIRMASS WILL
PRODUCE STRONG THUNDERSTORMS...SOME OF WHICH COULD BECOME SEVERE WITH
LOCALLY HEAVY RAINS.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE AREA BY
MID AFTERNOON AS AN INCREASINGLY UNSTABLE ATMOSPHERE INTERACTS WITH
AFTERNOON HEATING IN THE MID 70S.  THESE STORMS WILL BECOME MORE
WIDESPREAD BY EARLY EVENING AS THE COLD FRONT AND UPPER LEVEL
DISTURBANCE DRAW NEAR.  THE PRIMARY THREAT OF SEVERE WEATHER WILL BE
LARGE HAIL AND DAMAGING WINDS.

ABUNDANT LOW LEVEL MOISTURE COUPLED WITH REDEVELOPING STORMS WILL
MAKE HEAVY RAINFALL A POSSIBILITY.  RAINFALL AMOUNTS WILL AVERAGE
NEAR 1 INCH WITH ISOLATED AMOUNTS BETWEEN 2 TO 3 INCHES POSSIBLE
AROUND STRONGER THUNDERSTORMS.

STORM SPOTTERS SHOULD STAY ALERT FOR POSSIBLE ACTIVATION LATER THIS
AFTERNOON OR THIS EVENING.  MARINERS SHOULD PREPARE FOR POSSIBLE
STRONG OR SEVERE THUNDERSTORMS ACROSS THE BAYS OR THE GULF AS WELL.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL OR CABLE TELEVISION...
OR LOCAL RADIO STATIONS FOR FURTHER STATEMENTS OR WARNINGS CONCERNING
THIS DEVELOPING WEATHER SITUATION.
Special weather statement, Jan 27, 1:47 PM CST, 1 hour 59 minutes before
TXZ164-177>179-199-200-213-214-227-237-238-511-513-280100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
148 PM CST MON JAN 27 1997
...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF SOUTHEAST
TEXAS THROUGH 7 PM THIS EVENING...

THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR BRAZORIA...GALVESTON...CHAMBERS...HARRIS...FORT BEND...
LIBERTY...MONTGOMERY...SAN JACINTO...WALKER...POLK AND TRINITY
COUNTIES UNTIL 7 PM THIS EVENING.  SOME CITIES INCLUDED IN THE WATCH
AREA ARE GALVESTON...ANGELTON...HOUSTON...RICHMOND...CONROE...
LIBERTY...HUNTSVILLE AND LIVINGSTON.

THE COMBINATION OF AN APPROACHING COLD FRONT AND UPPER LEVEL
DISTURBANCE WILL INTERACT WITH A VERY MOIST AND UNSTABLE SOUTHEAST
TEXAS AIRMASS TO PRODUCE STRONG THUNDERSTORMS...SOME OF WHICH COULD
BECOME SEVERE.  THE PRIMARY THREAT OF SEVERE WEATHER WILL BE LARGE
HAIL AND DAMAGING WINDS.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE
FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER
CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

STORM SPOTTERS SHOULD KEEP A LOOKOUT FOR THREATENING WEATHER THIS
AFTERNOON AND EVENING.  MARINERS SHOULD ALSO PREPARE FOR POSSIBLE
STRONG OR SEVERE THUNDERSTORMS ACROSS THE BAYS AND IMMEDIATE COASTAL
WATERS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL NEW MEDIAS FOR FURTHER
STATEMENTS OR WARNINGS CONCERNING THIS DEVELOPING WEATHER SITUATION.
Special weather statement, Jan 27, 1:48 PM CST, 1 hour 58 minutes before
TXZ164-177>179-199-200-213-214-227-237-238-511-513-280100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
148 PM CST MON JAN 27 1997
...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF SOUTHEAST
TEXAS THROUGH 7 PM THIS EVENING...

THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR BRAZORIA...GALVESTON...CHAMBERS...HARRIS...FORT BEND...
LIBERTY...MONTGOMERY...SAN JACINTO...WALKER...POLK AND TRINITY
COUNTIES UNTIL 7 PM THIS EVENING.  SOME CITIES INCLUDED IN THE WATCH
AREA ARE GALVESTON...ANGELTON...HOUSTON...RICHMOND...CONROE...
LIBERTY...HUNTSVILLE AND LIVINGSTON.

THE COMBINATION OF AN APPROACHING COLD FRONT AND UPPER LEVEL
DISTURBANCE WILL INTERACT WITH A VERY MOIST AND UNSTABLE SOUTHEAST
TEXAS AIRMASS TO PRODUCE STRONG THUNDERSTORMS...SOME OF WHICH COULD
BECOME SEVERE.  THE PRIMARY THREAT OF SEVERE WEATHER WILL BE LARGE
HAIL AND DAMAGING WINDS.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE
FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER
CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

STORM SPOTTERS SHOULD KEEP A LOOKOUT FOR THREATENING WEATHER THIS
AFTERNOON AND EVENING.  MARINERS SHOULD ALSO PREPARE FOR POSSIBLE
STRONG OR SEVERE THUNDERSTORMS ACROSS THE BAYS AND IMMEDIATE COASTAL
WATERS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL NEW MEDIAS FOR FURTHER
STATEMENTS OR WARNINGS CONCERNING THIS DEVELOPING WEATHER SITUATION.
Special weather statement, Jan 27, 3:06 PM CST, 40 minutes before
TXZ163-164-179-280210-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
306 PM CST MON JAN 27 1997

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 8 PM CST FOR A LARGE
PORITON OF EAST TEXAS...

THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR A LARGE PORTION OF EAST TEXAS INCLUDING TRINITY...POLK AND
HOUSTON COUNTIES. SOME OF THE CITIES IN THE WATCH AREA ARE CROCKETT
...TRINITY...GROVETON...AND LIVINGSTON.

THE COMBINATION OF AN APPROACHING COLD FRONT AND UPPER LEVEL
DISTURBANCE WILL INTERACT WITH A VERY MOIST AND UNSTABLE SOUTHEAST
TEXAS AIRMASS TO PRODUCE STRONG TO SEVERE THUNDERSTORMS. THE PRIMARY
THREAT OF SEVERE WEATHER WILL BE LARGE HAIL AND DAMAGING WINDS.
A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT FOR MUCH OF SOUTHEAST
TEXAS UNTIL 7 PM CST.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO/TV STATION FOR
FURTHER STATEMENTS OR WARNINGS CONCERNING THIS DEVELOPING WEATHER
SITUATION.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 27, 2:31 PM CSTSevere Thunderstorm WarningHGXHarris59 min
Jan 27, 2:34 PM CSTSevere Thunderstorm WarningHGXBrazoria56 min
Jan 27, 3:20 PM CSTTornado WarningHGXHarris, Liberty55 min
Jan 27, 3:32 PM CSTSevere Thunderstorm WarningHGXHarris58 min
Jan 27, 4:10 PM CSTTornado WarningHGXChambers, Liberty65 min
Jan 27, 4:25 PM CSTSevere Thunderstorm WarningHGXFort Bend65 min
Jan 27, 4:43 PM CSTTornado WarningHGXBrazoria, Fort Bend, Harris62 min
Jan 27, 4:52 PM CSTSevere Thunderstorm WarningHGXHarris68 min
Jan 27, 4:58 PM CSTSevere Thunderstorm WarningHGXTrinity62 min
Jan 27, 5:02 PM CSTSevere Thunderstorm WarningHGXPolk88 min
Jan 27, 5:15 PM CSTSevere Thunderstorm WarningHGXChambers, Liberty60 min
Jan 27, 5:44 PM CSTTornado WarningHGXBrazoria, Harris61 min

Nearby

Tornado Warnings in Texas, 1997Every tornado warning in 1997Tornadoes in 1997

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; radar from the NEXRAD Level II archive.