Alert archive / Texas / Tornado Warnings in 1997

Tornado Warning 36, NWS Houston/Galveston, TX

May 31, 1997Jackson County, Texas

NWS Houston/Galveston, TX issued this tornado warning at May 31, 1997, 3:59 AM CDT for Jackson County, Texas. It was in force for 61 min. 1 report 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
May 31, 1997, 3:59 AM CDT (08:59 UTC)
Expired
May 31, 1997, 5:00 AM CDT
In force
61 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Jackson County, TX

The radar

The Houston radar (KHGX), 156 km from the middle of the area, began a volume at 09:01 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
May 31, 4:15 AM CDTThunderstorm Wind 60Ganado, TXUtility poles and trees blown down

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 31, 12:00 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 9.0 hours before the alert went out and 155 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 1997-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2212 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 1997-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
2212 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHOU 310854 RRA
TORHOU
TXC239-311000-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
359 AM CDT SAT MAY 31 1997
 
THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  500 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST TEXAS
 
   ...JACKSON COUNTY
 
AND ADJACENT COASTAL WATERS
 
 
AT 355 AM CDT...DOPPLER RADAR INDICATED A POSSIBLE TORNADO NEAR GANADO
MOVING SOUTH-SOUTHEAST AT 20 MPH.
 
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 REINFORCEDz 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 May 31, 3:45 AM CDT, 14 minutes earlier.

Area forecast discussion, May 31, 3:45 AM CDT, 14 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
340 AM CDT SAT MAY 31 1997

ACTIVE WEATHER STILL ONGOING...BOW ECHO AND THE ASSOCIATED MCV HAS
DRIVEN OFF THE COAST BETWEEN GLS AND SABINE PASS...WINDS OF 47 MPH IN
WEST BAY.  OUTFLOW BOUNDARY STRETCHES FROM FREEPORT TO NEAR ENDA AND
OFF TO THE WEST THIS BOUNDARY SLOWER MOVING AND WILL BE THE FOCUS FOR
HEAVY RAINS AND PERHAPS FURTHER SEVERE...MAINLY WIND DAMAGE.  WILL BE
MONITORING THIS CLOSELY THE REMAINDER OF THE MORNING FOR WARNINGS.
COLD FRONT STILL NEAR A CLL TO SAT LINE.  FRONT SHOULD CONTINUE ITS
SLOW TREK SOUTHWARD THIS MORNING WHILE PRONOUCED VORT MAX DROPS S
THROUGH SRN AR AND INTO LA.  AROUND NOON THE FRONT SHOULD PUSH OFF
THE COAST ENDING THE THREAT OF PRECIP OVER THE SRN 1/3 OF THE AREA.
CLOUDY TO MOSTLY CLOUDY SKIES WILL PREVAIL OVER THE COASTAL COUNTIES
THROUGH MID-AFTERNOON AND THEN BEGIN A SLOW CLEARING TREND.   WILL
KEEP POPS IN ON THE COAST THIS MORNING/ENDING BY LATE MORNING AND
DECREASING RAPIDLY TO THE NORTH.  STRONGER LL NORTH WINDS WILL SURGE
SOUTH AND INTO THE REGION TONIGHT AFTER THE ATTENDENT SPD MAX DIGS
FURTHER SOUTH ON THE BACK SIDE AND VORT ROUNDS THE SW CORNER OF THE
ERN TROF.  DEVELOPING CUTOFF LOW ANCHORS OVER MS/AL GIVING US THE
WRAP AROUND PLEASANT WEATHER FOR SUNDAY AND MONDAY.  WILL GO COOLER
THAN MOS.

45 PRELIMS
CLL E-B/A/U/V 83/60/87/59 1EARLY/000
IAH E-B/A/U/V 83/61/87/60 3EARLY/000
GLS C-E/B/U/A 81/69/83/71 5MORNING/000

In the hours before

Special weather statement, May 30, 11:45 PM CDT, 4 hours 14 minutes before
TXZ178-179-197>200-210>214-226>227-235>238-311145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1145 PM CDT FRI MAY 30 1997

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
EFFECTIVE UNTIL 5 AM FOR PORTIONS OF SOUTHEAST TEXAS. THE
FOLLOWING COUNTIES ARE INCLUDED IN THE WATCH AREA:AUSTIN...BRAZORIA...
CHAMBERS...COLORADO...FORT BEND...GALVESTON...GRIMES...HARRIS...
HOUSTON...JACKSON...LIBERTY...MATAGORDA...MONTGOMERY...POLK...
SAN JACINTO...WALLER...WASHINGTON...WAHRTON AND THE ADJACENT COASTAL
WATERS.

A COOL FRONT MOVING THROUGH NORTH TEXAS WILL ENCOUNTER A MOIST AND
UNSTABLE AIRMASS AS IT CONTINUES MOVING TO THE SOUTH.  THIS UNSTABLE
AIRMASS COMBINED WITH AN UPPER LEVEL DISTURBANCE WILL CREATE AN
ENVIRONMENT CONDUCTIVE FOR THUNDERSTORM DEVELOPMENT.  SOME OF THE
STORMS MAY REACH SEVERE LIMITS.

REMEMBER A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR
SEVERE THUNDERSTORMS IN AND NEAR THE WATCH AREA.  PERSONS IN THE AREA
SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND BE PREPARED TO SEEK
SHELTER.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION
FOR LATER STATEMENTS OR WARNINGS CONCERNING THIS SEVERE WEATHER
SITUATION.
Local storm report, May 31, 2:53 AM CDT, 1 hour 6 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED TIMES
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON
153 AM CST SAT MAY 31 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1003 PM    CORRIGAN                  TX   WIND DAMAGE
05/30/97   POLK                           TREES/POWERLINES DOWN.

1030 PM                              TX   WIND DAMAGE
05/30/97   TRINITY                        POWER LINES DOWN IN
                                          WESTERN PART OF COUNTY.

1038 PM                              TX   WIND DAMAGE
05/30/97   GRIMES                         TREES DOWN ON HWY 30.

1055 PM    TOMBALL                   TX   .88 INCH HAIL
05/30/97   HARRIS

1056 PM    HOUSTON                   TX   60 MPH TSTM GUST
05/30/97   HARRIS

1103 PM    HOUSTON                   TX   .88 INCH HAIL
05/30/97   HARRIS

1000 PM    3 N MIDWAY                TX   TORNADO
05/30/97   MADISON                        DPS REPORTED TORNADO.
                                          DAMAGE/INJURIES NOT
                                          CONFIRMED ATTM.

1111 PM    WILLIS                    TX   WIND DAMAGE
05/30/97   MONTGOMERY                     TREES DOWN.

1122 PM    TOMBALL                   TX   TORNADO
05/30/97   HARRIS                         TORNADO TOUCHED DOWN IN
                                          TOMBALL.  DAMAGE/INJURIES
                                          NOT CONFIRMED ATTM.

1135 PM    BELLVILLE                 TX   1.75 INCH HAIL
05/30/97   AUSTIN

1135 PM    BELLVILLE                 TX   WIND DAMAGE
05/30/97   AUSTIN                         POWERLINES DOWN.

1143 PM    2 S TOMBALL               TX   TORNADO
05/30/97   HARRIS                         TREES DOWN ON GRANT AND
                                          MILL ROADS.

1148 PM    HOUSTON                   TX   WIND DAMAGE
05/30/97   HARRIS                         TREES DOWN ON FM 1960 AND
                                          249.

1205 AM    RICHMOND                  TX   1.75 INCH HAIL
05/31/97   FORT BEND

1220 AM    5 W HANKAMER              TX   WIND DAMAGE
05/31/97   CHAMBERS                       TREES DOWN ON FM 563.
Local storm report, May 31, 2:57 AM CDT, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED TIMES
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON
153 AM CST SAT MAY 31 1997

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1003 PM    CORRIGAN                  TX   WIND DAMAGE
05/30/97   POLK                           TREES/POWERLINES DOWN.

1030 PM                              TX   WIND DAMAGE
05/30/97   TRINITY                        POWER LINES DOWN IN
                                          WESTERN PART OF COUNTY.

1038 PM                              TX   WIND DAMAGE
05/30/97   GRIMES                         TREES DOWN ON HWY 30.

1055 PM    TOMBALL                   TX   .88 INCH HAIL
05/30/97   HARRIS

1056 PM    HOUSTON                   TX   60 MPH TSTM GUST
05/30/97   HARRIS

1103 PM    HOUSTON                   TX   .88 INCH HAIL
05/30/97   HARRIS

1000 PM    3 N MIDWAY                TX   TORNADO
05/30/97   MADISON                        DPS REPORTED TORNADO.
                                          DAMAGE/INJURIES NOT
                                          CONFIRMED ATTM.

1111 PM    WILLIS                    TX   WIND DAMAGE
05/30/97   MONTGOMERY                     TREES DOWN.

1122 PM    TOMBALL                   TX   TORNADO
05/30/97   HARRIS                         TORNADO TOUCHED DOWN IN
                                          TOMBALL.  DAMAGE/INJURIES
                                          NOT CONFIRMED ATTM.

1135 PM    BELLVILLE                 TX   1.75 INCH HAIL
05/30/97   AUSTIN

1135 PM    BELLVILLE                 TX   WIND DAMAGE
05/30/97   AUSTIN                         POWERLINES DOWN.

1143 PM    2 S TOMBALL               TX   TORNADO
05/30/97   HARRIS                         TREES DOWN ON GRANT AND
                                          MILL ROADS.

1148 PM    HOUSTON                   TX   WIND DAMAGE
05/30/97   HARRIS                         TREES DOWN ON FM 1960 AND
                                          249.

1205 AM    RICHMOND                  TX   1.75 INCH HAIL
05/31/97   FORT BEND

1220 AM    5 W HANKAMER              TX   WIND DAMAGE
05/31/97   CHAMBERS                       TREES DOWN ON FM 563.

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 10:13 PM CDTSevere Thunderstorm WarningHGXHouston, Madison62 min
May 30, 10:44 PM CDTSevere Thunderstorm WarningHGXBrazos61 min
May 30, 10:59 PM CDTSevere Thunderstorm WarningHGXPolk, Trinity61 min
May 30, 11:02 PM CDTTornado WarningHGXMadison58 min
May 30, 11:12 PM CDTSevere Thunderstorm WarningHGXGrimes, Walker63 min
May 30, 11:20 PM CDTSevere Thunderstorm WarningHGXHarris, Montgomery55 min
May 30, 11:30 PM CDTSevere Thunderstorm WarningHGXLiberty, San Jacinto60 min
May 30, 11:38 PM CDTTornado WarningHGXHarris67 min
May 30, 11:47 PM CDTSevere Thunderstorm WarningHGXAustin58 min
May 30, 11:50 PM CDTSevere Thunderstorm WarningHGXMontgomery55 min
May 31, 12:07 AM CDTSevere Thunderstorm WarningHGXWashington68 min
May 31, 12:23 AM CDTFlash Flood WarningHGXHarris, Montgomery3 hr
May 31, 12:27 AM CDTTornado WarningHGXHarris, Liberty, Montgomery63 min
May 31, 12:30 AM CDTTornado WarningHGXAustin60 min
May 31, 12:54 AM CDTSevere Thunderstorm WarningHGXChambers66 min
May 31, 1:02 AM CDTSevere Thunderstorm WarningHGXColorado58 min
May 31, 1:28 AM CDTSevere Thunderstorm WarningHGXBrazoria, Fort Bend, Harris62 min
May 31, 1:28 AM CDTSevere Thunderstorm WarningHGXGalveston62 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.