Alert archive / Texas / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 319
The Storm Prediction Center issued this severe thunderstorm watch at May 31, 2007, 10:39 PM CDT for 19 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 31, 2007, 10:39 PM CDT (03:39 UTC)
- Expired
- Jun 1, 2007, 5:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Archer County, TX, Baylor County, TX, Childress County, TX, Clay County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Foard County, TX, Garza County, TX, Hardeman County, TX, Haskell County, TX, Kent County, TX, King County, TX, Knox County, TX, Motley County, TX, Stonewall County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Altus AFB radar (KFDR), 111 km from the middle of the area, began a volume at 03:38 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- 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
- 70%
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 11:18 PM CDT | Severe Thunderstorm Warning | LUB | Cottle | 57 min |
| May 31, 11:45 PM CDT | Severe Thunderstorm Warning | LUB | Kent | 30 min |
| May 31, 11:49 PM CDT | Severe Thunderstorm Warning | OUN | Foard | 41 min |
| Jun 1, 12:12 AM CDT | Severe Thunderstorm Warning | OUN | Hardeman | 48 min |
| Jun 1, 12:15 AM CDT | Severe Thunderstorm Warning | LUB | Kent | 19 min |
| Jun 1, 12:47 AM CDT | Severe Thunderstorm Warning | LUB | Stonewall | 43 min |
| Jun 1, 12:53 AM CDT | Severe Thunderstorm Warning | OUN | Wilbarger | 52 min |
| Jun 1, 1:07 AM CDT | Severe Thunderstorm Warning | SJT | Haskell, Throckmorton | 38 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 3.7 hours before the alert went out and 197 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
- 2316 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1473 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 10.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 7:52 PM CDT | Mesoscale Discussion | SPC | Greer, Harmon, Jackson | 83 min |
| May 31, 9:07 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 11 more | 53 min |
| May 31, 9:38 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 32 more | 7 hr |
| Jun 1, 12:04 AM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Craig, Delaware, Mayes, Muskogee and 9 more | 116 min |
| Jun 1, 1:14 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Craig, Creek, Delaware, Haskell and 14 more | 6 hr |
| Jun 1, 1:42 AM CDT | Mesoscale Discussion | SPC | Craig, Kay, Nowata, Osage, Washington | 2 hr |
| Jun 1, 2:24 AM CDT | Mesoscale Discussion | SPC | Comanche, Cotton, Harmon, Jackson, Jefferson, Stephens and 1 more | 66 min |
| Jun 1, 3:18 AM CDT | Mesoscale Discussion | SPC | Adair, Alfalfa, Blaine, Canadian, Cherokee, Cleveland and 43 more | 87 min |
| Jun 1, 5:39 AM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Delaware, Haskell, McIntosh, Mayes and 7 more | 66 min |
| Jun 1, 1:45 PM CDT | Mesoscale Discussion | SPC | Comanche, Cotton, Greer, Harmon, Jackson, Jefferson and 2 more | 60 min |
| Jun 1, 2:03 PM CDT | Tornado Watch | SPC | Comanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more | 7 hr |
| Jun 1, 4:38 PM CDT | Mesoscale Discussion | SPC | Caddo, Canadian, Cleveland, Creek, Garfield, Grady and 14 more | 67 min |
| Jun 1, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Blaine, Caddo, Canadian, Carter, Cherokee and 40 more | 8 hr |
| Jun 1, 5:30 PM CDT | Mesoscale Discussion | SPC | Comanche, Cotton, Jackson, Tillman | 60 min |
| Jun 1, 7:58 AM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 23 more | 62 min |
| Jun 1, 5:48 PM CDT | Severe Thunderstorm Watch | SPC | Callahan, Eastland, Erath, Fisher, Haskell, Hood and 12 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2007Every severe thunderstorm watch 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.