Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 15, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Mar 30, 2002, 5:25 PM CST for Jackson County, Texas. It was in force for 35 min. 2 reports 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, 5:25 PM CST (23:25 UTC)
- Expired
- Mar 30, 2002, 6:00 PM CST
- In force
- 35 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
County Jackson County, TX
The radar
The Austin/San Antonio radar (KEWX), 152 km from the middle of the area, began a volume at 23:29 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 30, 5:45 PM CST | Hail 1 | Edna, TX | |
| Mar 30, 5:54 PM CST | Hail 1.75 | Ganado, 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.
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 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
Corpus Christi, TX (KCRP), launched 12:00Z, 11.4 hours before the alert went out and 154 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.
169 WUUS54 KHGX 302325 SVRHOU TXC239-310000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 526 PM CST SAT MAR 30 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... JACKSON COUNTY IN SOUTHEAST TEXAS * UNTIL 600 PM CST * AT 520 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF EDNA...MOVING NORTHEAST AT 40 MPH. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... EDNA CORDELE GANADO 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. LAT...LON 2898 9686 2883 9675 2901 9638 2917 9660
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, 3:50 PM CST, 1 hour 35 minutes earlier.
Area forecast discussion, Mar 30, 3:50 PM CST, 1 hour 35 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
350 PM CST SAT MAR 30 2002
NEW SEVERE THUNDERSTORM WATCH (UNTIL 900 PM CST) ISSUED FOR SOUTHERN
COUNTIES THAT WERE NOT UNDER THE TORNADO WATCH. TORNADO WATCH
REMAINS IN EFFECT UNTIL 600 PM CST. ALL SOUTHEAST TEXAS COUNTIES ARE
NOW IN A WATCH.
--------------------------------------------------------------------
.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, 12:30 PM CST, 4 hours 55 minutes 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, 4 hours 53 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, 1 hour 40 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.
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, 3:31 PM CST | Severe Thunderstorm Warning | HGX | Colorado | 29 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, 5:53 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; radar from the NEXRAD Level II archive.