Alert archive / Texas / Severe Thunderstorm Watches in 2013
Severe Thunderstorm Watch 270
The Storm Prediction Center issued this severe thunderstorm watch at Jun 1, 2013, 5:35 PM CDT for 34 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 1, 2013, 5:35 PM CDT (22:35 UTC)
- Expired
- Jun 2, 2013, 1:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 70 kt
All 34 counties
Bandera County, TX, Bexar County, TX, Blanco County, TX, Brewster County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Crockett County, TX, Dimmit County, TX, Edwards County, TX, Gillespie County, TX, Guadalupe County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Llano County, TX, Mason County, TX, Maverick County, TX, McCulloch County, TX, Medina County, TX, Menard County, TX, Pecos County, TX, Real County, TX, San Saba County, TX, Schleicher County, TX, Sutton County, TX, Terrell County, TX, Travis County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX, Zavala County, TX
The radar
The San Angelo radar (KSJT), 117 km from the middle of the area, began a volume at 22:38 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- 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
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 5:49 PM CDT | Severe Thunderstorm Warning | MAF | Pecos | 56 min |
| Jun 1, 5:59 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 31 min |
| Jun 1, 6:48 PM CDT | Severe Thunderstorm Warning | MAF | Terrell | 57 min |
| Jun 1, 7:34 PM CDT | Tornado Warning | MAF | Terrell | 26 min |
| Jun 1, 7:35 PM CDT | Severe Thunderstorm Warning | SJT | Kimble, Mason | 25 min |
| Jun 1, 7:59 PM CDT | Severe Thunderstorm Warning | MAF | Terrell | 61 min |
| Jun 1, 7:59 PM CDT | Severe Thunderstorm Warning | SJT | Kimble, Mason, Menard | 31 min |
| Jun 1, 8:11 PM CDT | Severe Thunderstorm Warning | SJT | San Saba | 49 min |
| Jun 1, 8:14 PM CDT | Severe Thunderstorm Warning | SJT | Kimble, Mason, Menard | 46 min |
| Jun 1, 8:59 PM CDT | Severe Thunderstorm Warning | SJT | Kimble, Mason | 46 min |
| Jun 1, 9:40 PM CDT | Severe Thunderstorm Warning | SJT | Kimble | 50 min |
| Jun 1, 10:17 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kerr | 58 min |
| Jun 1, 10:28 PM CDT | Severe Thunderstorm Warning | SJT | Kimble | 32 min |
| Jun 1, 11:14 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kerr, Real | 61 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
Del Rio, TX (KDRT), launched 12:00Z, 10.6 hours before the alert went out and 122 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
- 2495 J/kg
- Mixed-layer CIN
- -302 J/kg
- Mixed-layer LCL
- 725 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 273 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 5:18 PM CDT | Mesoscale Discussion | SPC | Blanco, Burnet, Crockett, Edwards, Gillespie, Kendall and 9 more | 57 min |
| Jun 1, 5:53 PM CDT | Mesoscale Discussion | SPC | Anderson, Bell, Cherokee, Falls, Freestone, Gregg and 19 more | 67 min |
Nearby
Severe Thunderstorm Watches in Texas, 2013Every severe thunderstorm watch in 2013
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.