Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 67, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Aug 3, 2002, 3:03 PM CDT for Polk County, Texas. It was in force for 87 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 3, 2002, 3:03 PM CDT (20:03 UTC)
- Expired
- Aug 3, 2002, 4:30 PM CDT
- In force
- 87 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
County Polk County, TX
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
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.1 hours before the alert went out and 222 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
- 2043 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1333 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
645 WUUS54 KHGX 032003 SVRHOU TXC373-032045- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 302 PM CDT SAT AUG 3 2002 THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... POLK COUNTY IN SOUTHEAST TEXAS * UNTIL 345 PM CDT * AT 254 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR LIVINGSTON...MOVING SOUTHWEST AT 10 MPH. DAMAGING WINDS ARE LIKELY WITH THIS STORM. DIME SIZE HAIL IS ALSO POSSIBLE. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... LIVINGSTON GOODRICH LAKE LIVINGSTON 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 3079 9497 3072 9482 3057 9494 3067 9506
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 Aug 3, 1:14 PM CDT, 1 hour 49 minutes earlier.
Area forecast discussion, Aug 3, 1:14 PM CDT, 1 hour 49 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 114 PM CDT SAT AUG 3 2002 SENT OUT A QUICK UPDATE...RAISING TEMPS...UPPING POPS AND MENTIONING SEVERE POSSIBILITY. .HGX...NONE 47/43 PRELIMS... CLL BB 102/073 097/073 096 442 IAH BB 101/075 096/075 094 443 GLS BB 092/080 089/080 089 443
In the hours before
Special weather statement, Aug 3, 10:26 AM CDT, 4 hours 37 minutes before
TXZ163-164-176>179-195>200-210>214-226-227-235>238-040000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1026 AM CDT SAT AUG 3 2002 ...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING... MOISTURE IS FORECAST TO INCREASE THIS AFTERNOON AS A LOW LEVEL SHEAR AXIS MOVES INTO THE AREA FROM THE EAST. THIS MOISTURE COMBINED WITH AFTERNOON TEMPERATURES IN THE MID AND UPPER 90S WILL LEAD TO THE DEVELOPMENT OF SCATTERED SHOWERS AND THUNDERSTORMS. AN AREA OF FAIRLY DRY AIR WILL PERSIST IN THE LOWER LEVELS OF THE ATMOSPHERE WHICH WILL INCREASE THE RISK FOR WIND DAMAGE IN THE STRONGER STORMS. THOUGH WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED...ISOLATED DOWNBURSTS ARE POSSIBLE THROUGH THE EARLY EVENING HOURS. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 2:33 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria | 72 min |
| Aug 3, 3:46 PM CDT | Severe Thunderstorm Warning | HGX | Montgomery | 59 min |
| Aug 3, 3:47 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend | 58 min |
| Aug 3, 3:50 PM CDT | Severe Thunderstorm Warning | HGX | Matagorda | 55 min |
| Aug 3, 3:55 PM CDT | Special Marine Warning | HGX | 2 hr | |
| Aug 3, 3:56 PM CDT | Severe Thunderstorm Warning | HGX | Jackson | 2 hr |
| Aug 3, 4:56 PM CDT | Severe Thunderstorm Warning | HGX | Harris | 64 min |
| Aug 3, 5:14 PM CDT | Severe Thunderstorm Warning | HGX | Colorado | 31 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.