Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 49, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 20, 2002, 5:14 PM CDT for Washington County, Texas. It was in force for 46 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
- Jun 20, 2002, 5:14 PM CDT (22:14 UTC)
- Expired
- Jun 20, 2002, 6:00 PM CDT
- In force
- 46 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
County Washington 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
Corpus Christi, TX (KCRP), launched 12:00Z, 10.2 hours before the alert went out and 292 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
- 2918 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 666 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -71 m²/s²
- 0-3 km storm-relative helicity
- -10 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 202214 SVRHOU TXC477-202300- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 512 PM CDT THU JUN 20 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WASHINGTON COUNTY IN SOUTHEAST TEXAS * UNTIL 600 PM CDT * AT 505 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 SMILES SOUTHEAST OF BRENHAM...MOVING NORTH NORTHWEST AT 10 TO 15 MPH. LARGE HAIL AND DAMAGING WINDS ARE THE MAIN WEATHER THREAT. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... BRENHAM RURAL PARTS OF THE 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. LAT...LON 3009 9634 3011 9620 3037 9625 3033 9643
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 Jun 20, 2:28 PM CDT, 2 hours 46 minutes earlier.
Area forecast discussion, Jun 20, 2:28 PM CDT, 2 hours 46 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 230 PM CDT THU JUN 20 2002 FAIRLY WIDESPREAD CONVECTIVE COVERAGE ACROSS THE FA THIS AFTERNOON DUE TO THE COMBINATION OF DAYTIME HEATING/VARIOUS MESO BOUNDARIES/ DECENT INFLOW/ABUNDANT GULF MOISTURE. WILL KEEP CHANCE POPS IN THE FORECAST THROUGH THE EVENING HOURS FOR INLAND LOCATIONS. OTHERWISE TOMORROW LOOKS TO BE A REPEAT AS THE AIRMASS ONLY SHIFTS SLOWLY TO WESTWARD A BIT. MOST OF THE SAME PLAYERS WILL REMAIN IN PLACE. PER MODELS...SIGNIFICANT DRYING/SUBSIDENCE TO MOVE IN FROM THE EAST ON SATURDAY/SUNDAY JUST AHEAD OF THE UPPER LOW TRACKING ALONG THE NE/ NCNTL GULF. THIS LOW IS PROGGED TO HELP WEAKEN THE ELONGATED UPPER RIDGE THAT HAS BEEN COVERING THE ERN 2/3S OF THE NATION. THE DEVE- LOPING WEAKNESS IN THE UPPER RIDGE SHOULD HELP TO KEEP A SLGT CHC/ CHC OF PRECIPITATION IN OUR FORECAST ALMOST ALL OF NEXT WEEK. TEMP FORECAST FOR TOMORROW WILL BE TRICKY GIVEN THE POSSIBILITY OF PCPN /CLOUDS...MUCH LIKE TODAY. WILL LIKELY KEEP NEAR PERSISTENCE NONE- THELESS. 41/37 .HGX...NONE. PRELIMS... CLL BB 075/093 074/094 073 343 IAH BB 077/091 076/092 074 343 GLS BB 079/088 079/089 078 232
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 5:15 PM CDT | Severe Thunderstorm Warning | HGX | Washington | 45 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.