Alert archive / Texas / Tornado Watches in 2006
Tornado Watch 822
The Storm Prediction Center issued this tornado watch at Oct 10, 2006, 11:48 AM CDT for 14 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 10, 2006, 11:48 AM CDT (16:48 UTC)
- Expired
- Oct 10, 2006, 4:57 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
Counties Brazoria County, TX, Calhoun County, TX, Chambers County, TX, Fort Bend County, TX, Galveston County, TX, Hardin County, TX, Harris County, TX, Jackson County, TX, Jefferson County, TX, Liberty County, TX, Matagorda County, TX, Orange County, TX, Victoria County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 55 km from the middle of the area, began a volume at 16:50 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 10, 11:59 AM CDT | Severe Thunderstorm Warning | HGX | Harris | 46 min |
| Oct 10, 12:38 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 52 min |
| Oct 10, 12:53 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend | 37 min |
| Oct 10, 1:19 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 41 min |
| Oct 10, 2:07 PM CDT | Tornado Warning | HGX | Brazoria, Galveston | 23 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 4.8 hours before the alert went out and 239 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
- 2480 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 523 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 7:44 PM CDT | Mesoscale Discussion | SPC | Andrews, Borden, Crane, Culberson, Dawson, Ector and 15 more | 91 min |
| Oct 9, 10:44 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Concho and 20 more | 2 hr |
| Oct 9, 11:17 PM CDT | Severe Thunderstorm Watch | SPC | Coke, Concho, Crockett, Edwards, Irion, Kimble and 7 more | 6 hr |
| Oct 10, 1:43 AM CDT | Mesoscale Discussion | SPC | Bandera, Brewster, Crockett, Edwards, Gillespie, Kendall and 13 more | 92 min |
| Oct 10, 3:18 AM CDT | Tornado Watch | SPC | Bandera, Bell, Blanco, Burnet, Coryell, Crockett and 20 more | 7 hr |
| Oct 10, 5:00 AM CDT | Mesoscale Discussion | SPC | Austin, Bandera, Bastrop, Bell, Bexar, Blanco and 49 more | 90 min |
| Oct 10, 6:43 AM CDT | Tornado Watch | SPC | Anderson, Austin, Bastrop, Brazos, Burleson, Caldwell and 20 more | 7 hr |
| Oct 10, 8:52 AM CDT | Mesoscale Discussion | SPC | Bandera, Bell, Bexar, Blanco, Burnet, Comal and 27 more | 83 min |
| Oct 10, 9:31 AM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Austin, Bastrop, Brazos, Burleson and 32 more | 119 min |
| Oct 10, 11:28 AM CDT | Mesoscale Discussion | SPC | Angelina, Austin, Brazoria, Brazos, Colorado, Fayette and 15 more | 92 min |
| Oct 10, 12:34 PM CDT | Mesoscale Discussion | SPC | Aransas, Brazoria, Calhoun, Chambers, Fort Bend, Galveston and 14 more | 56 min |
| Oct 10, 1:39 PM CDT | Mesoscale Discussion | SPC | Aransas, Brazoria, Calhoun, Chambers, Fort Bend, Galveston and 12 more | 96 min |
| Oct 10, 3:08 PM CDT | Mesoscale Discussion | SPC | Aransas, Brazoria, Calhoun, Chambers, Galveston, Jefferson and 4 more | 97 min |
Nearby
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.