Alert archive / Texas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 28, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Mar 14, 2007, 5:07 PM CDT for Chambers County, Galveston County, Texas. It was in force for 53 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
- Mar 14, 2007, 5:07 PM CDT (22:07 UTC)
- Expired
- Mar 14, 2007, 6:00 PM CDT
- In force
- 53 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
Counties Chambers County, TX, Galveston County, TX
The radar
The Houston radar (KHGX), 33 km from the middle of the area, began a volume at 22:07 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 |
|---|---|---|---|
| Mar 14, 10:34 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 10.1 hours before the alert went out and 321 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
- 1516 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 463 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 376 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 9.0
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 Mar 14, 3:51 PM CDT, 1 hour 16 minutes earlier.
Area forecast discussion, Mar 14, 3:51 PM CDT, 1 hour 16 minutes before
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</html>Hazardous weather outlook, Mar 14, 4:56 AM CDT, 12 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 456 AM CDT WED MAR 14 2007 TXZ163-164-176>179-195>200-210>214-226-227-235>238-151100- 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- 456 AM CDT WED MAR 14 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT A STRONG UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE OVER OUR REGION TODAY. THE MOIST AIR MASS WILL BECOME MORE UNSTABLE AS THIS UPPER LOW MOVES OVERHEAD THIS AFTERNOON. SOME OF THE STORMS THAT DEVELOP MAY BECOME SEVERE THIS AFTERNOON. THE MAIN THREAT WILL BE LARGE HAIL AND DAMAGING WINDS. EXPECT IMPROVING CONDITIONS THIS EVENING AS THE STORM SYSTEM START TO MOVE EAST OF OUR REGION. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 7:29 PM CDT | Severe Thunderstorm Warning | HGX | Colorado, Wharton | 31 min |
| Mar 13, 8:23 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend | 52 min |
| Mar 13, 9:17 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend, Harris | 43 min |
| Mar 13, 10:02 PM CDT | Tornado Warning | HGX | Harris, Montgomery | 28 min |
| Mar 13, 10:12 PM CDT | Special Marine Warning | HGX | 63 min | |
| Mar 13, 10:16 PM CDT | Special Marine Warning | HGX | 119 min | |
| Mar 14, 12:51 AM CDT | Special Marine Warning | HGX | 114 min | |
| Mar 14, 1:50 AM CDT | Special Marine Warning | HGX | 85 min | |
| Mar 14, 2:59 AM CDT | Special Marine Warning | HGX | 91 min | |
| Mar 14, 9:37 AM CDT | Severe Thunderstorm Warning | HGX | Jackson, Wharton | 38 min |
| Mar 14, 10:05 AM CDT | Severe Thunderstorm Warning | HGX | Brazoria | 40 min |
| Mar 14, 10:17 AM CDT | Severe Thunderstorm Warning | HGX | Colorado, Wharton | 43 min |
| Mar 14, 10:33 AM CDT | Special Marine Warning | HGX | 57 min | |
| Mar 14, 10:41 AM CDT | Severe Thunderstorm Warning | HGX | Brazoria | 49 min |
| Mar 14, 10:53 AM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Galveston, Harris | 37 min |
| Mar 14, 11:26 AM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Galveston | 34 min |
| Mar 14, 11:30 AM CDT | Special Marine Warning | HGX | 45 min | |
| Mar 14, 11:38 AM CDT | Severe Thunderstorm Warning | HGX | Washington | 52 min |
| Mar 14, 11:41 AM CDT | Severe Thunderstorm Warning | HGX | Brazoria | 34 min |
| Mar 14, 12:01 PM CDT | Special Marine Warning | HGX | 59 min | |
| Mar 14, 12:15 PM CDT | Special Marine Warning | HGX | 90 min | |
| Mar 14, 12:26 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Matagorda | 34 min |
| Mar 14, 12:34 PM CDT | Severe Thunderstorm Warning | HGX | Austin, Waller, Washington | 56 min |
| Mar 14, 12:44 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Grimes | 31 min |
| Mar 14, 1:03 PM CDT | Special Marine Warning | HGX | 117 min | |
| Mar 14, 1:23 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend | 37 min |
| Mar 14, 2:20 PM CDT | Special Marine Warning | HGX | 55 min | |
| Mar 14, 2:27 PM CDT | Special Marine Warning | HGX | 93 min | |
| Mar 14, 2:56 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Harris | 49 min |
| Mar 14, 3:12 PM CDT | Severe Thunderstorm Warning | HGX | Chambers | 48 min |
| Mar 14, 3:20 PM CDT | Special Marine Warning | HGX | 85 min | |
| Mar 14, 4:39 PM CDT | Special Marine Warning | HGX | 96 min | |
| Mar 14, 4:45 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Galveston, Harris | 45 min |
| Mar 14, 6:02 PM CDT | Special Marine Warning | HGX | 88 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.