Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 12, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Mar 30, 2002, 3:31 PM CST for Colorado County, Texas. It was in force for 29 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 30, 2002, 3:31 PM CST (21:31 UTC)
- Expired
- Mar 30, 2002, 4:00 PM CST
- In force
- 29 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
County Colorado County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 30, 4:00 PM CST | Thunderstorm Wind 65 EG | Eagle Lake, TX | Sheriff reported roof damage and power lines down in Eagle Lake. |
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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 9.5 hours before the alert went out and 216 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2462 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KHGX 302131 SVRHOU TXC089-302200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 331 PM CST SAT MAR 30 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... COLORADO COUNTY IN SOUTHEAST TEXAS * UNTIL 400 PM CST * AT 330 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9 MILES SOUTH OF SHERIDAN...MOVING NORTHEAST AT 45 MPH. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... SHERIDAN ROCK ISLAND EAGLE LAKE THIS STORM MAY PRODUCE LARGE DAMAGING HAIL...RESULTING IN EXTENSIVE PROPERTY DAMAGE OR SERIOUS INJURY. AVOID WINDOWS AND TAKE COVER NOW 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. LAT...LON 2947 9674 2933 9654 2963 9623 2981 9641
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, 2:55 PM CST, 36 minutes earlier.
Area forecast discussion, Mar 30, 2:55 PM CST, 36 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
255 PM CST SAT MAR 30 2002
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...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, 11:15 AM CST, 4 hours 16 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-302300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1115 AM CST SAT MAR 30 2002 ...SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHEAST TEXAS THIS AFTERNOON AND ON INTO THIS EVENING... A STRONG UPPER LEVEL STORM SYSTEM AND A SURFACE COLD FRONT WILL CROSS TEXAS THIS AFTERNOON AND WILL EXIT THE STATE EARLY SUNDAY MORNING. SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS SOUTHEAST TEXAS AS DAYTIME HEATING HELPS TO DESTABILIZE THE ATMOSPHERE ACROSS THE AREA AND UPPER LEVEL LOW PRESSURE APPROACHES FROM THE WEST. THE PRIMARY SEVERE WEATHER THREAT WILL BE STRONG DAMAGING WINDS. THESE WIND GUSTS WILL COME FROM STRONG WINDS JUST OFF THE SURFACE THAT WILL LIKELY MIX TO THE GROUND IN THUNDERSTORM DOWNDRAFTS. LARGE HAIL WILL ALSO BE POSSIBLE AS A POCKET OF COLDER AIR MOVES ACROSS THE REGION AROUND SUNSET. THERE IS ALSO A RISK FOR TORNADOES LATER THIS AFTERNOON AS LOW PRESSURE ADVANCES TOWARD SOUTHEAST TEXAS. AS THE LOW PRESSURE AREA APPROACHES...LOW LEVEL WIND SHEAR...OR WINDS TURNING WITH HEIGHT... HAVE THE POTENTIAL TO CREATE A FAVORABLE ENVIRONMENT FOR TORNADOES TO DEVELOP. IF SEVERE THUNDERSTORMS DO DEVELOP...THE GREATEST THREAT WILL LIKELY BE THIS AFTERNOON AND THIS EVENING NORTH OF INTERSTATE 10. LOCATIONS FURTHER NORTH OF THE INTERSTATE...ROUGHLY ALONG AND NORTH OF A LINE FROM BRENHAM TO LAKE LIVINGSTON...HAVE A SLIGHTLY BETTER CHANCE OF SEVERE WEATHER WITH THIS STORM SYSTEM. PERSONS NORTH AND SOUTH OF INTERSTATE 10 SHOULD REMAIN ALERT FOR POSSIBLE SEVERE THUNDERSTORM OR TORNADO WATCHES LATER TODAY. THE SEVERE WEATHER THREAT IS EXPECTED TO COME TO AN END LATER THIS EVENING AS THE STORM SYSTEM MOVES OFF TO THE EAST. THIS IS A POTENTIALLY VERY DANGEROUS WEATHER SITUATION. ALL RESIDENTS ACROSS SOUTHEAST TEXAS SHOULD STAY ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS THIS AFTERNOON AND THIS EVENING. THE RISK FOR SEVERE WEATHER ALSO EXTENDS NORTH AND EAST TOWARD DALLAS...LITTLE ROCK AND NEW ORLEANS. IF TRAVELING TODAY FOR THE EASTER HOLIDAY...PLEASE BE PREPARED FOR RAPIDLY CHANGING AND DANGEROUS WEATHER CONDITIONS THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST UPDATES FROM THE NATIONAL WEATHER SERVICE.
Special weather statement, Mar 30, 12:30 PM CST, 3 hours 1 minute before
TXZ163-164-176>179-195>200-211>214-310100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1230 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 BRENHAM 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, 12:32 PM CST, 2 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.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 3:13 PM CST | Severe Thunderstorm Warning | HGX | Austin, Colorado | 32 min |
| Mar 30, 5:01 PM CST | Severe Thunderstorm Warning | HGX | Fort Bend, Wharton | 44 min |
| Mar 30, 5:11 PM CST | Severe Thunderstorm Warning | HGX | Montgomery | 34 min |
| Mar 30, 5:23 PM CST | Tornado Warning | HGX | Fort Bend, Wharton | 37 min |
| Mar 30, 5:25 PM CST | Severe Thunderstorm Warning | HGX | Jackson | 35 min |
| Mar 30, 5:53 PM CST | Severe Thunderstorm Warning | HGX | Jackson, Wharton | 37 min |
| Mar 30, 5:54 PM CST | Tornado Warning | HGX | Fort Bend, Harris | 36 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.