Alert archive / Texas / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 42, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 26, 2006, 2:04 AM CDT for Harris County, Waller County, Texas. It was in force for 31 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 26, 2006, 2:04 AM CDT (07:04 UTC)
- Expired
- Apr 26, 2006, 2:35 AM CDT
- In force
- 31 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
Counties Harris County, TX, Waller County, TX
The radar
The Houston radar (KHGX), 78 km from the middle of the area, began a volume at 07:03 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 26, 1:01 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.1 hours before the alert went out and 241 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
- 2353 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 758 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
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 26, 1:42 AM CDT, 22 minutes earlier.
Area forecast discussion, Apr 26, 1:42 AM CDT, 22 minutes before
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</html>Hazardous weather outlook, Apr 25, 10:00 PM CDT, 4 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1000 PM CDT TUE APR 25 2006 GMZ330-350-TXZ163-164-176>178-195>199-210>213-226-227-235-236- 270300- AUSTIN-BRAZOS-BURLESON-COLORADO-FORT BEND-GRIMES-HARRIS-HOUSTON- JACKSON-MADISON-MATAGORDA-MATAGORDA BAY-MONTGOMERY-SAN JACINTO- TRINITY-WALKER-WALLER-WASHINGTON- WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM- WHARTON- 1000 PM CDT TUE APR 25 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TONIGHT HAZARDOUS WEATHER NO LONGER EXPECTED TONIGHT. ..DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY UNSETTLED WEATHER IS EXPECTED THIS WEEKEND AS A SERIES OF UPPER LEVEL DISTURBANCES MOVE ACROSS THE AREA AND INTERACT WITH GULF MOISTURE TO PRODUCE SCATTERED THUNDERSTORMS. IT IS TOO EARLY TO NARROW DOWN THE TIMING AND POSITION OF THESE IMPULSES. WE WILL CONTINUE TO MONITOR THIS FOR THE NEXT SEVERAL DAYS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION NO LONGER REQUIRED THIS EVENING. GMZ335-355-TXZ179-200-214-237-238-270300- BRAZORIA-CHAMBERS-GALVESTON-GALVESTON BAY-LIBERTY-POLK- WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM- 1000 PM CDT TUE APR 25 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TONIGHT SEVERE THUNDERSTORMS POSSIBLE UNTIL AFTER MIDNIGHT TONIGHT AS A COLD FRONT MOVES THROUGH THE AREA. THE PRIMARY THREAT WILL BE LARGE HAIL. SEVERE THUNDERSTORM WATCH 253 IS IN EFFECT UNTIL 4 AM. ..DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY UNSETTLED WEATHER IS EXPECTED THIS WEEKEND AS A SERIES OF UPPER LEVEL DISTURBANCES MOVE ACROSS THE AREA AND INTERACT WITH GULF MOISTURE TO PRODUCE SCATTERED THUNDERSTORMS. IT IS TOO EARLY TO NARROW DOWN THE TIMING AND POSITION OF THESE IMPULSES. WE WILL CONTINUE TO MONITOR THIS FOR THE NEXT SEVERAL DAYS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS EVENING.
In the hours before
Local storm report, Apr 26, 12:36 AM CDT, 1 hour 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1236 AM CDT WED APR 26 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1230 AM HAIL COLLEGE STATION 30.60N 96.31W
04/26/2006 M1.50 INCH BRAZOS TX TRAINED SPOTTER
HAIL COVERING THE GROUND ON TEXAS A AND M CAMPUS.
1230 AM HAIL WINNIE 29.82N 94.38W
04/26/2006 E1.75 INCH CHAMBERS TX LAW ENFORCEMENT
&&
KPThe office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 7:59 PM CDT | Severe Thunderstorm Warning | HGX | Harris | 46 min |
| Apr 25, 8:07 PM CDT | Severe Thunderstorm Warning | HGX | Liberty | 38 min |
| Apr 25, 9:22 PM CDT | Severe Thunderstorm Warning | HGX | Liberty | 38 min |
| Apr 25, 10:15 PM CDT | Severe Thunderstorm Warning | HGX | Chambers | 45 min |
| Apr 25, 11:00 PM CDT | Severe Thunderstorm Warning | HGX | Chambers | 45 min |
| Apr 25, 11:49 PM CDT | Severe Thunderstorm Warning | HGX | Chambers | 41 min |
| Apr 26, 12:28 AM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson | 47 min |
| Apr 26, 12:32 AM CDT | Severe Thunderstorm Warning | HGX | Chambers | 43 min |
| Apr 26, 12:36 AM CDT | Severe Thunderstorm Warning | HGX | Washington | 39 min |
| Apr 26, 12:40 AM CDT | Severe Thunderstorm Warning | HGX | Grimes | 50 min |
| Apr 26, 1:03 AM CDT | Tornado Warning | HGX | Washington | 27 min |
| Apr 26, 1:09 AM CDT | Tornado Warning | HGX | Grimes, Waller | 51 min |
| Apr 26, 1:10 AM CDT | Severe Thunderstorm Warning | HGX | Walker | 50 min |
| Apr 26, 1:32 AM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto, Trinity | 43 min |
| Apr 26, 1:36 AM CDT | Severe Thunderstorm Warning | HGX | Austin, Colorado | 45 min |
| Apr 26, 2:31 AM CDT | Severe Thunderstorm Warning | HGX | Montgomery | 44 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2006Every severe thunderstorm warning in 2006
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.