Alert archive / Texas / Tornado Watches in 2010
Tornado Watch 14
The Storm Prediction Center issued this tornado watch at Jan 28, 2010, 3:15 PM CST for 20 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 28, 2010, 3:15 PM CST (21:15 UTC)
- Expired
- Jan 28, 2010, 10:00 PM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
Counties Bandera County, TX, Blanco County, TX, Burnet County, TX, Concho County, TX, Edwards County, TX, Gillespie County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Real County, TX, San Saba County, TX, Schleicher County, TX, Sutton County, TX, Uvalde County, TX, Val Verde County, TX
The radar
The San Angelo radar (KSJT), 129 km from the middle of the area, began a volume at 21:15 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
- 40%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 28, 3:19 PM CST | Severe Thunderstorm Warning | SJT | Coleman, Concho, McCulloch, Menard | 56 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
Midland Regional, TX (KMAF), launched 12:00Z, 9.3 hours before the alert went out and 293 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
- 179 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 491 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 369 m²/s²
- 0-3 km storm-relative helicity
- 419 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 28, 12:22 AM CST | Mesoscale Discussion | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 24 more | 6 hr |
| Jan 28, 5:05 AM CST | Mesoscale Discussion | SPC | Andrews, Borden, Brewster, Coke, Crane, Crockett and 25 more | 2 hr |
| Jan 28, 7:01 AM CST | Mesoscale Discussion | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 27 more | 5 hr |
| Jan 28, 9:52 AM CST | Mesoscale Discussion | SPC | Concho, Edwards, Gillespie, Kerr, Kimble, Llano and 9 more | 83 min |
| Jan 28, 10:48 AM CST | Mesoscale Discussion | SPC | Hansford, Lipscomb, Ochiltree, Sherman | 5 hr |
| Jan 28, 1:47 PM CST | Mesoscale Discussion | SPC | Edwards, Kimble, Kinney, Maverick, Menard, Real and 4 more | 118 min |
| Jan 28, 2:36 PM CST | Mesoscale Discussion | SPC | Bosque, Collin, Coryell, Dallas, Delta, Denton and 19 more | 84 min |
| Jan 28, 2:39 PM CST | Severe Thunderstorm Watch | SPC | Bosque, Coryell, Dallas, Ellis, Hamilton, Hill and 11 more | 4 hr |
| Jan 28, 5:06 PM CST | Mesoscale Discussion | SPC | Coryell, Ellis, Falls, Hamilton, Hill, Kaufman and 6 more | 114 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.