Alert archive / Texas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 98, NWS Houston/Galveston, TX

May 31, 2004Madison County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 31, 2004, 9:32 PM CDT for Madison County, Texas. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 31, 2004, 9:32 PM CDT (02:32 UTC)
Expired: May 31, 2004, 10:30 PM CDT
In force: 58 min
Issued by: NWS Houston/Galveston, TX
Area: Counties, with a storm outline in the text

County Madison County, TX

The watch it was issued in

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

Issued	Product	Office	Lasted
May 31, 4:10 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.5 hours before the alert went out and 244 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 82 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 1991 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 339 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.3

Open this sounding in Storm Lab

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 May 31, 8:15 PM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, May 31, 8:15 PM CDT, 1 hour 17 minutes before

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Hazardous weather outlook, May 31, 4:00 PM CDT, 5 hours 32 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
400 PM CDT MON MAY 31 2004

TXZ163-164-176>179-195>200-210>214-226-227-235>238-010500-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-GALVESTON-
GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-MONTGOMERY-
POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-WHARTON-
400 PM CDT MON MAY 31 2004

.DAY ONE...TONIGHT.
A WEAK COOL FRONT OVER NORTH TEXAS AND AN OUTFLOW BOUNDARY OVER
NORTHEAST TEXAS WILL SAG SOUTH THIS EVENING. THESE BOUNDARIES
COUPLED WITH INTENSE DAYTIME HEATING WILL BECOME THE FOCUS FOR
THUNDERSTORMS THIS EVENING. THE PRIMARY SEVERE WEATHER HAZARD WILL BE
DAMAGING STRAIGHT LINE WINDS AND LARGE HAIL. JUST LIKE THE LAST
SEVERAL DAYS...A STRONG THERMAL INVERSION OR CAP...IS SUPPRESSING
THUNDERSTORM DEVELOPMENT. THE CAP IS WEAKEST NORTH OF A BRYAN TO
LIVINGSTON LINE...SO THE GREATEST THREAT FOR HAZARDOUS WEATHER WILL BE
OVER THE NORTHERN HALF OF SOUTHEAST TEXAS. THE THUNDERSTORMS WILL
DISSIPATE A COUPLE OF HOURS AFTER SUNSET.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
THE UPCOMING WEEK WILL BECOME INCREASINGLY ACTIVE AS UPPER LEVEL
WINDS BECOME NORTHWEST. A SERIES OF MESO-SCALE CONVECTIVE COMPLEXES
WILL RACE SOUTHEAST DURING THE LATE NIGHT AND EARLY MORNING HOURS.
THE TIMING AND AREAL EXTENT OF THESE SYSTEMS ARE DIFFICULT TO
FORECAST. THE FIRST OF THESE SYSTEMS WILL APPROACH EAST TEXAS LATE
WEDNESDAY NIGHT WITH A SECOND SYSTEM LATE THURSDAY NIGHT.

OTHERWISE...NO SEVERE WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS EVENING.

In the hours before

Special weather statement, May 31, 4:05 PM CDT, 5 hours 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
405 PM CDT MON MAY 31 2004

TXZ163-164-176>179-195>200-010300-
BRAZOS-BURLESON-GRIMES-HOUSTON-LIBERTY-MADISON-MONTGOMERY-POLK-
SAN JACINTO-TRINITY-WALKER-WASHINGTON-
405 PM CDT MON MAY 31 2004

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM...

THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR PORTIONS OF SOUTHEAST TEXAS. THE WATCH AREA IS ALONG AND NORTH OF
LINE FROM MOSS HILL TO BRENHAM. COUNTIES INCLUDED ARE BRAZOS...
BURLESON...GRIMES...HOUSTON...LIBERTY...MADISON...MONTGOMERY...POLK...
SAN JACINTO...TRINITY...WALKER...AND WASHINGTON.

THUNDERSTORMS ARE DEVELOPING ALONG AN OUTFLOW BOUNDARY THAT IS MOVING
FROM NORTHEAST TO SOUTHWEST ACROSS SOUTHEAST TEXAS. WITH AFTERNOON
TEMPERATURES IN THE LOW TO MID 90S...AND DEWPOINTS IN THE MID 70S...
THE AIR MASS HAS BECOME VERY UNSTABLE. ADDITIONAL STORMS ARE LIKELY
AND WITH THE AMOUNT OF INSTABILITY AVAILABLE...SOME OF THIS ACTIVITY
IS LIKELY TO PRODUCE STRONG WINDS AND POSSIBLY SOME HAIL.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN.  MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.  IF
OUTSIDE...MOVE TO SHELTER...PREFERABLY INSIDE A STRONG BUILDING.

Special weather statement, May 31, 4:05 PM CDT, 5 hours 27 minutes before

SPECIAL WEATHER STATEMENT...CORRECTED WATCH TYPE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
405 PM CDT MON MAY 31 2004

TXZ163-164-176>179-195>200-010300-
BRAZOS-BURLESON-GRIMES-HOUSTON-LIBERTY-MADISON-MONTGOMERY-POLK-
SAN JACINTO-TRINITY-WALKER-WASHINGTON-
405 PM CDT MON MAY 31 2004

...TORNADO WATCH IN EFFECT UNTIL 10 PM...

THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF
SOUTHEAST TEXAS. THE WATCH AREA IS ALONG AND NORTH OF LINE FROM MOSS
HILL TO BRENHAM. COUNTIES INCLUDED ARE BRAZOS...BURLESON...GRIMES...
HOUSTON...LIBERTY...MADISON...MONTGOMERY...POLK...SAN JACINTO...
TRINITY...WALKER...AND WASHINGTON.

THUNDERSTORMS ARE DEVELOPING ALONG AN OUTFLOW BOUNDARY THAT IS MOVING
FROM NORTHEAST TO SOUTHWEST ACROSS SOUTHEAST TEXAS. WITH AFTERNOON
TEMPERATURES IN THE LOW TO MID 90S...AND DEWPOINTS IN THE MID 70S...
THE AIR MASS HAS BECOME VERY UNSTABLE. ADDITIONAL STORMS ARE LIKELY
AND WITH THE AMOUNT OF INSTABILITY AVAILABLE...SOME OF THIS ACTIVITY
IS LIKELY TO PRODUCE ISOLATED TORNADOES...STRONG WINDS AND POSSIBLY
SOME HAIL.

Local storm report, May 31, 8:04 PM CDT, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
804 PM CDT MON MAY 31 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0430 PM     HAIL             GRAPELAND               31.49N 95.48W
05/31/2004  0.75 INCH        HOUSTON            TX   BROADCAST MEDIA

0505 PM     TORNADO          6 WNW KENNARD           31.39N 95.28W
05/31/2004                   HOUSTON            TX   LAW ENFORCEMENT

            NO DAMAGE REPORTED.

0530 PM     HAIL             1 N KENNARD             31.37N 95.18W
05/31/2004  1.75 INCH        HOUSTON            TX   LAW ENFORCEMENT

            HAIL AT FM 1733 HWY 7.

0645 PM     HAIL             GROVETON                31.06N 95.13W
05/31/2004  1.00 INCH        TRINITY            TX   LAW ENFORCEMENT

            DURATION OF ABOUT 20 MINUTES. HAIL COVERING THE GROUND.

0750 PM     HAIL             ALABAMA-COUSHATTA RESER 30.72N 94.71W
05/31/2004  0.75 INCH        POLK               TX   LAW ENFORCEMENT

&&

47

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 7:48 PM CDT	Severe Thunderstorm Warning	HGX	Polk	42 min
May 31, 10:26 PM CDT	Severe Thunderstorm Warning	HGX	Trinity, Walker	64 min
May 31, 10:28 PM CDT	Severe Thunderstorm Warning	HGX	Madison	47 min
May 31, 10:48 PM CDT	Tornado Warning	HGX	Madison, Walker	42 min
May 31, 11:28 PM CDT	Tornado Warning	HGX	Walker	47 min
May 31, 11:43 PM CDT	Severe Thunderstorm Warning	HGX	San Jacinto	47 min
May 31, 11:50 PM CDT	Severe Thunderstorm Warning	HGX	Brazos, Madison	40 min
May 31, 11:54 PM CDT	Severe Thunderstorm Warning	HGX	Polk	51 min
Jun 1, 1:00 AM CDT	Severe Thunderstorm Warning	HGX	Brazos	60 min
Jun 1, 1:43 AM CDT	Severe Thunderstorm Warning	HGX	Burleson	62 min
Jun 1, 2:02 AM CDT	Severe Thunderstorm Warning	HGX	Brazos	58 min
Jun 1, 2:57 AM CDT	Severe Thunderstorm Warning	HGX	Burleson	48 min

Nearby

Severe Thunderstorm Warnings in Texas, 2004 Every severe thunderstorm warning in 2004

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.