Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 18, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Mar 30, 2002, 6:31 PM CST for Harris County, Texas. It was in force for 59 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
- Mar 30, 2002, 6:31 PM CST (00:31 UTC)
- Expired
- Mar 30, 2002, 7:30 PM CST
- In force
- 59 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Harris 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 |
|---|---|---|---|
| Mar 30, 3:45 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.5 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.
- Mixed-layer CAPE
- 2027 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 712 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 6.2
The text
As transmitted, in the capitals the NWS used until 2016.
288 WUUS54 KHGX 310031 SVRHOU TXC201-310130- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 630 PM CST SAT MAR 30 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HARRIS COUNTY IN SOUTHEAST TEXAS * UNTIL 730 PM CST * AT 625 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES NORTHWEST OF HOUSTON...MOVING NORTHEAST AT 35 MPH. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... ALDINE...JACINTO CITY...GALENA PARK BUSH-INTERCONTINENTAL AIRPORT...SPRING HUMBLE...CLOVERLEAF...CHANNELVIEW SHELDON...SAN JACINTO STATE PARK THIS STORM HAS A HISTORY OF LARGE HAIL AND A TORNADO IN FORT BEND COUNTY. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. STAY AWAY FROM WINDOWS PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE... OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
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 Mar 30, 5:30 PM CST, 1 hour 1 minute earlier.
Area forecast discussion, Mar 30, 5:30 PM CST, 1 hour 1 minute before
SOUTHEAST TEXAS FORECAST DISCUSSION...UPDATED FOR NEW TORNADO WATCH
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
530 PM CST SAT MAR 30 2002
TORNADO WATCH 60 HAS BEEN ISSUED UNTIL 1100 PM CST FOR MUCH OF
NORTHERN AND EASTERN SOUTHEAST TEXAS. THIS WATCH REPLACES TORNADO
WATCH 57. SEVERE THUNDERSTORM WATCH 59 IS STILL IN EFFECT FOR
SOUTHERN AND COASTAL COUNTIES OF SOUTHEAST TEXAS UNTIL 900 PM CST.
SEE THE UPDATED SPSHOU FOR COUNTY DETAILS.
42/35/30/36/45/DH/WT
.HGX...SEVERE THUNDERSTORM WATCH 59 THRU 9 PM.
TORNADO WATCH 60 THRU 11 PM.
SCEC 00-20 NM WATERS.
SCA 00-60 NM WATERS.
PRELIMS...
CLL BU 055/072 048/075 055 6-0
IAH BU 059/076 051/076 056 6-0
GLS BU 065/074 058/072 061 5-0
--------------------------------------------------------------------
.PREVIOUS DISCUSSION...
SEVERE WEATHER THREAT WILL PERSIST ACROSS SOUTHEAST TEXAS FOR THE
REMAINING AFTERNOON HOURS AND ON INTO THIS EVENING. UPPER LOW IS NOW
MOVING INTO CENTRAL TEXAS. STRONG DIFLUENT PATTERN WILL CONTINUE
ACROSS THE AREA AS SPEED MAX ROTATES AROUND THE BASE OF THE LOW.
TORNADIC THUNDERSTORMS HAVE BEEN JUST OUTSIDE OUR CWAS NORTHWEST
ZONES. THESE STORMS SHOULD BEGIN TO SPREAD TO THE EAST AND INTO OUR
CWA DURING THE NEXT FEW HOURS AS THE UPPER LOW GETS CLOSER INTO OUR
VERY MOIST...VERY WARM AND UNSTABLE ATMOSPHERE. WILL CONTINUE THE
SEVERE THREAT ON INTO THE EVENING HOURS WITH THE NORTHERN HALF OF
OUR CWA (AREAS NEAR AND NORTH OF INTERSTATE 10) AT GREATEST RISK. BY
TOMORROW MORNING...EXPECT QUIET PATTERN TO SETTLE IN TO THE AREA AS
THE STORM SYSTEM PROGRESSES OFF TO THE EAST. WILL HAVE SOME DRY
WEATHER THROUGH TUESDAY...THEN WILL SEE SOME SHOWERS/THUNDERSTORMS
ON WEDNESDAY AS THE NEXT COLD FRONT MOVES INTO THE AREA FROM THE
NORTH. A COOLDOWN WILL FOLLOW FOR THE LAST PART OF THE WEEK AS
SHOWER/THUNDERSTORM CHANCES LINGER ACROSS THE AREA. WE MAY EVEN HAVE
TO EVENTUALLY LOWER THE FORECAST TEMPERATURES FOR THE END OF THE
WEEK AS SOME CANADIAN AIR FILTERS INTO THE AREA. PRELIMS ARE NEXT.
42/35/30
.HGX...SEVERE THUNDERSTORM WATCH TXZ210-226-227-235>238 THRU
9 PM.
TORNADO WATCH TXZ163-164-176>179-195>200-211>214 THRU
6 PM.
SCEC 00-20 NM WATERS.
SCA 00-60 NM WATERS.
PRELIMS...
CLL BU 055/072 048/075 055 6-0
IAH BU 059/076 051/076 056 6-0
GLS BU 065/074 058/072 061 5-0In the hours before
Special weather statement, Mar 30, 12:32 PM CST, 5 hours 59 minutes before
TXZ163-164-176>179-195>200-211>214-310100- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1232 PM CST SAT MAR 30 2002 ...TORNADO WATCH FOR MUCH OF SOUTHEAST TEXAS UNTIL 7 PM... THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR THE NORTHERN TWO THIRDS OF SOUTHEAST TEXAS UNTIL 7 PM. THE WATCH IS IN EFFECT NORTH OF A LINE FROM BELLVILLE TO HOUSTON TO ANAHUAC. THE FOLLOWING COUNTIES ARE IN THE WATCH...BURLESON...BRAZOS...MADISON...HOUSTON...AUSTIN...WASHINGTON.. .GRIMES...WALKER...TRINITY...WALLER...MONTGOMERY...SAN JACINTO...POLK...HARRIS...LIBERTY...AND CHAMBERS. SOME COMMUNITIES INCLUDED IN THE WATCH ARE CALDWELL...COLLEGE STATION...MADISONVILLE...CROCKETT...BELLVILLE...BRENHAM...NAVASOTA... HUNTSVILLE...GROVETON...HEMPSTEAD...CONROE...COLDSPRING... LIVINGSTON...HOUSTON...LIBERTY...AND WINNIE. AN UPPER LEVEL DISTURBANCE IS APPROACHING SOUTHEAST TEXAS FROM THE WEST. AS THE SYSTEM APPROACHES...SCATTERED THUNDERSTORMS WILL DEVELOP...SOME OF WHICH MAY BECOME SEVERE. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR THUNDERSTORMS TO PRODUCE TORNADOES...DAMAGING WIND GUSTS AND LARGE HAIL. A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED WHEN SEVERE WEATHER IS IMMINENT OR OCCURRING. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR ADDITIONAL UPDATES AND POSSIBLE WARNINGS. IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM...MOVE INSIDE TO A REINFORCED STRUCTURE AND STAY AWAY FROM WINDOWS.
Special weather statement, Mar 30, 3:45 PM CST, 2 hours 46 minutes before
TXZ210-226-227-235>238-310300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 345 PM CST SAT MAR 30 2002 ...SEVERE THUNDERSTORM WATCH ISSUED FOR THE SOUTHERN THIRD OF SOUTHEAST TEXAS UNTIL 9 PM... ...TORNADO WATCH REMAINS IN EFFECT FOR THE NORTHERN TWO THIRDS OF SOUTHEAST TEXAS UNTIL 6 PM... THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR THE SOUTHERN THIRD OF SOUTHEAST TEXAS UNTIL 9 PM. THIS WATCH COVERS THAT AREA SOUTH OF THE TORNADO WATCH ALREADY IN EFFECT. THE SEVERE THUNDERSTORM WATCH IS IN EFFECT SOUTH OF A LINE FROM BELLVILLE TO HOUSTON TO ANAHUAC...WITH THE TORNADO WATCH REMAINING IN EFFECT NORTH OF THIS LINE. THE FOLLOWING COUNTIES ARE IN THE SEVERE THUNDERSTORM WATCH... COLORADO...FORT BEND...GALVESTON...WHARTON...JACKSON...MATAGORDA... BRAZORIA. SOME COMMUNITIES INCLUDED IN THE SEVERE THUNDERSTORM WATCH ARE COLUMBUS...RICHMOND ROSENBERG...GALVESTON...EL CAMPO...EDNA...BAY CITY...AND LAKE JACKSON. A LINE OF THUNDERSTORMS ASSOCIATED WITH AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE WATCH AREA OVER THE NEXT FEW HOURS. SOME OF THE STORMS MAY BECOME SEVERE. A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THUNDERSTORMS TO PRODUCE DAMAGING WIND GUSTS AND LARGE HAIL. A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED WHEN SEVERE WEATHER IS IMMINENT OR OCCURRING. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR ADDITIONAL UPDATES AND POSSIBLE WARNINGS. IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM...MOVE INSIDE TO A REINFORCED STRUCTURE AND STAY AWAY FROM WINDOWS.
Special weather statement, Mar 30, 5:30 PM CST, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 530 PM CST SAT MAR 30 2002 TXZ163-164-176>179-199-200-213-214-310500- CHAMBERS-HARRIS-HOUSTON-LIBERTY-MADISON-MONTGOMERY-POLK-SAN JACINTO- TRINITY-WALKER- 530 PM CST SAT MAR 30 2002 ...TORNADO WATCH EXTENDED UNTIL 11 PM FOR THE EASTERN THIRD OF SOUTHEAST TEXAS... THE STORM PREDICTION CENTER HAS EXTENDED THE TORNADO WATCH FOR THE EASTERN THIRD OF SOUTHEAST TEXAS UNTIL 11 PM. THE TORNADO WATCH IS IN EFFECT EAST OF A LINE FROM MADISONVILLE TO HOUSTON TO ANAHUAC. THE FOLLOWING COUNTIES ARE IN THE TORNADO WATCH... MADISON...HOUSTON...WALKER...TRINITY...POLK...SAN JACINTO...MONTGOMERY...HARRIS...LIBERTY...AND CHAMBERS SOME COMMUNITIES INCLUDED IN THE TORNADO WATCH ARE MADISONVILLE...CROCKETT...HUNTSVILLE...GROVETON...LIVINGSTON... COLDSPRING...CONROE...HOUSTON...LIBERTY...AND ANAHUAC. A LINE OF STRONG TO SEVERE THUNDERSTORMS ASSOCIATED WITH AN UPPER LEVEL DISTURBANCE IS MOVING ACROSS THE AREA AT THE PRESENT TIME. THESE STORMS HAVE HAD A HISTORY OF PRODUCING LARGE HAIL AND DAMAGING WINDS. A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR THUNDERSTORMS TO PRODUCE TORNADOES...DAMAGING WIND GUSTS AND LARGE HAIL. A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED WHEN SEVERE WEATHER IS IMMINENT OR OCCURRING. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR ADDITIONAL UPDATES AND POSSIBLE WARNINGS. IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM...MOVE INSIDE TO A REINFORCED STRUCTURE AND STAY AWAY FROM WINDOWS. TXZ226-227-235>238-310500- BRAZORIA-FORT BEND-GALVESTON-JACKSON-MATAGORDA-WHARTON- 530 PM CST SAT MAR 30 2002 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM FOR THE SOUTHERN THIRD OF SOUTHEAST TEXAS... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT SOUTH OF A LINE FROM EDNA TO HOUSTON TO ANAHUAC THROUGH 9 PM. THE FOLLOWING COUNTIES ARE IN THE SEVERE THUNDERSTORM WATCH... JACKSON...WHARTON...FORT BEND...MATAGORDA...BRAZORIA...WHARTON...AND GALVESTON SOME COMMUNITIES INCLUDED IN THE SEVERE THUNDERSTORM WATCH ARE EDNA...EL CAMPO...RICHMOND ROSENBERG...BAY CITY...LAKE JACKSON...AND GALVESTON. A LINE OF STRONG TO SEVERE THUNDERSTORMS ASSOCIATED WITH AN UPPER LEVEL DISTURBANCE IS MOVING ACROSS THE AREA AT THE PRESENT TIME. THESE STORMS HAVE HAD A HISTORY OF PRODUCING LARGE HAIL AND DAMAGING WINDS. A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THUNDERSTORMS TO PRODUCE DAMAGING WIND GUSTS AND LARGE HAIL. A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED WHEN SEVERE WEATHER IS IMMINENT OR OCCURRING. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR ADDITIONAL UPDATES AND POSSIBLE WARNINGS. IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM...MOVE INSIDE TO A REINFORCED STRUCTURE AND STAY AWAY FROM WINDOWS.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 6:04 PM CST | Tornado Warning | HGX | Matagorda, Wharton | 41 min |
| Mar 30, 6:22 PM CST | Severe Thunderstorm Warning | HGX | Polk, Trinity | 38 min |
| Mar 30, 6:33 PM CST | Tornado Warning | HGX | Polk | 27 min |
| Mar 30, 6:48 PM CST | Tornado Warning | HGX | Brazoria, Fort Bend, Matagorda | 57 min |
| Mar 30, 7:01 PM CST | Tornado Warning | HGX | Polk, Trinity | 29 min |
| Mar 30, 7:23 PM CST | Severe Thunderstorm Warning | HGX | Harris, Liberty | 37 min |
| Mar 30, 7:39 PM CST | Severe Thunderstorm Warning | HGX | Polk, San Jacinto | 36 min |
| Mar 30, 7:47 PM CST | Tornado Warning | HGX | Chambers, Galveston, Harris | 43 min |
| Mar 30, 7:54 PM CST | Special Marine Warning | HGX | 66 min | |
| Mar 30, 8:01 PM CST | Tornado Warning | HGX | Liberty | 29 min |
| Mar 30, 8:32 PM CST | Severe Thunderstorm Warning | HGX | Chambers, Liberty | 43 min |
| Mar 30, 9:08 PM CST | Special Marine Warning | HGX | 67 min | |
| Mar 30, 10:17 PM CST | Special Marine Warning | HGX | 58 min | |
| Mar 31, 3:02 AM CST | Severe Thunderstorm Warning | HGX | Trinity | 13 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
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.