Alert archive / Texas / Tornado Warnings in 2010
Tornado Warning 20, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Sep 7, 2010, 9:28 AM CDT for Fort Bend County, Waller County, Texas. It was in force for 32 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
- Sep 7, 2010, 9:28 AM CDT (14:28 UTC)
- Expired
- Sep 7, 2010, 10:00 AM CDT
- In force
- 32 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
Counties Fort Bend County, TX, Waller County, TX
The radar
The Houston radar (KHGX), 84 km from the middle of the area, began a volume at 14:29 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 |
|---|---|---|---|
| Sep 7, 4:37 AM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 2.5 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
- 1004 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 455 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 9:20 PM CDT | Coastal Flood Advisory | HGX | Brazoria, Chambers, Galveston, Matagorda | 7 hr |
| Sep 7, 6:12 AM CDT | Special Marine Warning | HGX | 2 hr | |
| Sep 7, 6:30 AM CDT | Areal Flood Advisory | HGX | Colorado, Jackson, Matagorda, Wharton | 3 hr |
| Sep 7, 7:55 AM CDT | Special Marine Warning | HGX | 2 hr | |
| Sep 7, 8:55 AM CDT | Flash Flood Warning | HGX | Colorado, Jackson, Matagorda, Wharton | 3 hr |
| Sep 7, 9:53 AM CDT | Special Marine Warning | HGX | 112 min | |
| Sep 7, 10:00 AM CDT | Tornado Warning | HGX | Waller, Washington | 30 min |
| Sep 7, 10:52 AM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson | 23 min |
| Sep 7, 11:04 AM CDT | Tornado Warning | HGX | Brazos | 26 min |
| Sep 7, 11:36 AM CDT | Special Marine Warning | HGX | 114 min | |
| Sep 7, 11:42 AM CDT | Areal Flood Advisory | HGX | Harris | 63 min |
| Sep 7, 11:45 AM CDT | Coastal Flood Advisory | HGX | Brazoria, Galveston, Matagorda | 17 hr |
| Sep 7, 11:52 AM CDT | Severe Thunderstorm Warning | HGX | Matagorda | 24 min |
| Sep 7, 11:58 AM CDT | Flash Flood Warning | HGX | Colorado, Jackson, Matagorda, Wharton | 2 hr |
| Sep 7, 12:38 PM CDT | Flash Flood Warning | HGX | Harris | 3 hr |
| Sep 7, 12:51 PM CDT | Special Marine Warning | HGX | 114 min | |
| Sep 7, 12:59 PM CDT | Special Weather Statement | HGX | Harris | 31 min |
| Sep 7, 1:26 PM CDT | Special Marine Warning | HGX | 2 hr | |
| Sep 7, 1:32 PM CDT | Severe Thunderstorm Warning | HGX | Liberty, Montgomery, San Jacinto, Walker | 43 min |
| Sep 7, 1:53 PM CDT | Flash Flood Warning | HGX | Colorado, Jackson, Matagorda, Wharton | 112 min |
| Sep 7, 2:43 PM CDT | Special Marine Warning | HGX | 2 hr | |
| Sep 7, 2:52 PM CDT | Areal Flood Advisory | HGX | Chambers, Harris, Liberty | 3 hr |
| Sep 7, 3:16 PM CDT | Special Weather Statement | HGX | Chambers, Liberty | 59 min |
| Sep 7, 3:46 PM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend, Matagorda, Wharton | 59 min |
| Sep 7, 4:43 PM CDT | Special Marine Warning | HGX | 47 min |
Nearby
Tornado Warnings in Texas, 2010Every tornado warning in 2010Tornadoes in 2010
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.