Alert archive / Texas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 42, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 25, 2007, 1:54 AM CDT for Burleson County, Texas. It was in force for 26 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 25, 2007, 1:54 AM CDT (06:54 UTC)
- Expired
- Apr 25, 2007, 2:20 AM CDT
- In force
- 26 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
County Burleson County, TX
The radar
The Ft Hood radar (KGRK), 77 km from the middle of the area, began a volume at 06:54 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 25, 1:40 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 6.9 hours before the alert went out and 268 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
- 1510 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 701 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.2
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 24, 8:45 PM CDT, 5 hours 9 minutes earlier.
Area forecast discussion, Apr 24, 8:45 PM CDT, 5 hours 9 minutes before
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</html>Hazardous weather outlook, Apr 24, 9:10 PM CDT, 4 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 910 PM CDT TUE APR 24 2007 TXZ163-164-176>179-195>200-210>214-226-227-235>238-260215- AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND- GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA- MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON- WHARTON- 910 PM CDT TUE APR 24 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TONIGHT A LARGE COMPLEX OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED TO DEVELOP OVER CENTRAL AND SOUTH CENTRAL TEXAS THIS EVENING AS AN UPPER LEVEL DISTURBANCE APPROACHES FROM THE WEST. THIS COMPLEX OF STORMS IS EXPECTED TO ENTER THE NORTHWEST PORTIONS OF SOUTHEAST TEXAS AROUND OR SHORTLY AFTER MIDNIGHT AND CROSS THE REMAINDER OF THE AREA THROUGH MID MORNING WEDNESDAY. GIVEN THE STRONG SHEAR PROFILE IN THE LOWER LEVELS OF THE ATMOSPHERE...SOME OF THE STORMS WILL LIKELY BECOME SEVERE. THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TO THE NORTH AND WEST OF A LINE FROM COLUMBUS TO CONROE TO LIVINGSTON AND A SLIGHT RISK TO THE SOUTH AND EAST OF THAT LINE. THE PRIMARY SEVERE WEATHER THREATS WILL BE DAMAGING STRAIGHT-LINE WINDS AND ISOLATED TORNADOES WITH A LESSER THREAT OF LARGE HAIL. THE COMPLEX OF STORMS IS EXPECTED TO BE RELATIVELY SLOW MOVING WITH TRAINING OF INDIVIDUAL STORM CELLS LIKELY. RAINFALL AMOUNTS FROM MIDNIGHT TONIGHT TO NOON WEDNESDAY WILL AVERAGE 2 TO 4 INCHES FOR AREAS NORTH OF A WHARTON TO PEARLAND TO WINNIE LINE. ISOLATED TOTALS OF 6 TO 8 INCHES WILL BE POSSIBLE IN THIS AREA. GIVEN THAT THIS RAIN WILL FALL IN A RELATIVELY SHORT PERIOD OF TIME... SIGNIFICANT FLOODING WILL BE POSSIBLE. FURTHER SOUTH OVER THE COASTAL COUNTIES...RAINFALL AMOUNTS WILL AVERAGE AROUND AN INCH WITH ISOLATED TOTALS OF 2 TO 3 INCHES POSSIBLE. A FLOOD WATCH HAS BEEN ISSUED FOR ALL BUT THE COASTAL COUNTIES OF SOUTHEAST TEXAS. A FLOOD WATCH MEANS RAPIDLY RISING WATER OR FLOODING IS POSSIBLE WITHIN THE WATCH AREA. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. .DAY TWO...WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT THE LARGE COMPLEX OF THUNDERSTORMS SHOULD MOVE OUT OF SOUTHEAST TEXAS BY MIDDAY. THE POTENTIAL EXISTS FOR ISOLATED THUNDERSTORMS TO REDEVELOP OVER THE EASTERN HALF OF SOUTHEAST TEXAS WEDNESDAY EVENING AS THE COLD FRONT MOVES INTO THE AREA. IF STORMS ARE ABLE TO REDEVELOP...THEY WILL HAVE THE POTENTIAL TO BECOME SEVERE PRODUCING LARGE HAIL AND DAMAGING DOWNBURST WINDS. HOWEVER... OVERALL CONFIDENCE IS LOW THAT THE ATMOSPHERE WILL DESTABILIZE SUFFICIENTLY TO SUPPORT STORM REDEVELOPMENT. .DAYS THREE THROUGH SEVEN...THURSDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS LIKELY TONIGHT AND WEDNESDAY MORNING.
In the hours before
Special weather statement, Apr 24, 10:06 PM CDT, 3 hours 48 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1006 PM CDT TUE APR 24 2007 TXZ163-164-176>179-195>200-210>214-226-227-235>238-250715- HOUSTON-TRINITY-MADISON-WALKER-SAN JACINTO-POLK-BURLESON-BRAZOS- WASHINGTON-GRIMES-MONTGOMERY-LIBERTY-COLORADO-AUSTIN-WALLER- HARRIS-CHAMBERS-WHARTON-FORT BEND-JACKSON-MATAGORDA-BRAZORIA- GALVESTON- INCLUDING THE CITIES OF...CROCKETT...TRINITY...GROVETON... MADISONVILLE...HUNTSVILLE...SHEPHERD...COLDSPRING...LIVINGSTON... CORRIGAN...ONALASKA...CALDWELL...LAKE SOMERVILLE... COLLEGE STATION...BRYAN...BRENHAM...NAVASOTA...THE WOODLANDS... CONROE...WILLIS...LIBERTY...CLEVELAND...DAYTON...COLUMBUS... EAGLE LAKE...WEIMAR...SEALY...BELLVILLE...HEMPSTEAD... PRAIRIE VIEW...BROOKSHIRE...HOUSTON...PASADENA...KATY...TOMBALL... HUMBLE...WINNIE...MONT BELVIEU...ANAHUAC...EL CAMPO...WHARTON... PIERCE...SUGAR LAND...MISSOURI CITY...RICHMOND...ROSENBERG... EDNA...BAY CITY...PALACIOS...PEARLAND...LAKE JACKSON...ALVIN... ANGLETON...FREEPORT...LEAGUE CITY...TEXAS CITY...FRIENDSWOOD... GALVESTON 1006 PM CDT TUE APR 24 2007 ...STRONG WINDS AFFECTING PARTS OF SOUTHEAST TEXAS... STRONG WINDS ALOFT ARE OCCASIONALLY MIXING DOWN TO THE SURFACE AS WEAK SHOWERS MOVE ACROSS THE AREA. SUSTAINED WINDS ARE EXPECTED TO AVERAGE BETWEEN 15 AND 20 MPH THROUGH MIDNIGHT AND DECREASE TOWARD SUNRISE. WIND GUSTS COULD BRIEFLY EXCEED 40 MPH AT TIMES THROUGH MIDNIGHT. A CLUSTER OF STRONG TO SEVERE STORMS WILL CROSS SOUTHEAST TEXAS TOWARD MORNING. WINDS ASSOCIATED WITH THESE STORMS COULD EXCEED 50 MPH.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 2:18 AM CDT | Severe Thunderstorm Warning | HGX | Colorado | 42 min |
| Apr 25, 2:37 AM CDT | Severe Thunderstorm Warning | HGX | Burleson | 23 min |
| Apr 25, 2:45 AM CDT | Severe Thunderstorm Warning | HGX | Austin, Brazos, Burleson, Grimes, Waller, Washington and 1 more | 60 min |
| Apr 25, 3:09 AM CDT | Severe Thunderstorm Warning | HGX | Colorado | 21 min |
| Apr 25, 3:31 AM CDT | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 59 min |
| Apr 25, 8:30 AM CDT | Severe Thunderstorm Warning | HGX | Jackson | 45 min |
| Apr 25, 8:35 AM CDT | Severe Thunderstorm Warning | HGX | Wharton | 55 min |
| Apr 25, 10:25 AM CDT | Tornado Warning | HGX | Brazoria, Matagorda | 50 min |
| Apr 25, 11:57 AM CDT | Special Marine Warning | HGX | 63 min | |
| Apr 25, 1:30 PM CDT | Special Marine Warning | HGX | 60 min | |
| Apr 25, 2:31 PM CDT | Special Marine Warning | HGX | 89 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2007Every severe thunderstorm warning in 2007
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.