Alert archive / Texas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 61, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 22, 2003, 3:58 PM CDT for Polk County, San Jacinto County, Walker County, Texas. It was in force for 47 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
- Apr 22, 2003, 3:58 PM CDT (20:58 UTC)
- Expired
- Apr 22, 2003, 4:45 PM CDT
- In force
- 47 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
Counties Polk County, TX, San Jacinto County, TX, Walker County, TX
The radar
The Houston radar (KHGX), 137 km from the middle of the area, began a volume at 21:01 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.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.0 hours before the alert went out and 202 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
- 1943 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Apr 22, 2:57 PM CDT, 1 hour 1 minute earlier.
Area forecast discussion, Apr 22, 2:57 PM CDT, 1 hour 1 minute before
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</html>Hazardous weather outlook, Apr 22, 11:45 AM CDT, 4 hours 13 minutes before
GMZ330-335-TXZ163-164-176>179-195>200-210>214-226-227-235>238-231200- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1145 AM CDT TUE APR 22 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE CENTRAL AND SOUTHERN PORTIONS OF SOUTHEAST TEXAS THIS AFTERNOON. LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE WITH THE STRONGER THUNDERSTORMS THAT DO DEVELOP. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. A STORM SYSTEM WILL MOVE ACROSS THE SOUTHERN AND CENTRAL PLAINS WEDNESDAY AND THURSDAY AND IS EXPECTED TO PRODUCE SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE AREA. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS DURING THE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON TIME PERIOD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 10:54 AM CDT | Severe Thunderstorm Warning | HGX | Washington | 51 min |
| Apr 22, 11:38 AM CDT | Severe Thunderstorm Warning | HGX | Austin | 37 min |
| Apr 22, 11:58 AM CDT | Severe Thunderstorm Warning | HGX | Waller | 32 min |
| Apr 22, 12:25 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 35 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2003Every severe thunderstorm warning in 2003
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; radar from the NEXRAD Level II archive.