Alert archive / Texas / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 271
The Storm Prediction Center issued this severe thunderstorm watch at May 6, 2008, 8:51 PM MDT for 8 counties in New Mexico; 6 counties in Oklahoma; 64 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 6, 2008, 8:51 PM MDT (02:51 UTC)
- Expired
- May 7, 2008, 4:00 AM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 78 counties
Chaves County, NM, Curry County, NM, Eddy County, NM, Harding County, NM, Lea County, NM, Quay County, NM, Roosevelt County, NM, Union County, NM, Beaver County, OK, Cimarron County, OK, Harmon County, OK, Jackson County, OK, Texas County, OK, Tillman County, OK, Andrews County, TX, Armstrong County, TX, Bailey County, TX, Baylor County, TX, Borden County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dallam County, TX, Dawson County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Ector County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Gaines County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hardeman County, TX, Hartley County, TX, Haskell County, TX, Hemphill County, TX, Hockley County, TX, Howard County, TX, Hutchinson County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lipscomb County, TX, Loving County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Reeves County, TX, Roberts County, TX, Scurry County, TX, Sherman County, TX, Stonewall County, TX, Swisher County, TX, Terry County, TX, Ward County, TX, Wheeler County, TX, Wilbarger County, TX, Winkler County, TX, Yoakum County, TX
The radar
The Amarillo radar (KAMA), 81 km from the middle of the area, began a volume at 02:51 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
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 80%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 8:59 PM MDT | Severe Thunderstorm Warning | LUB | King | 43 min |
| May 6, 9:05 PM MDT | Severe Thunderstorm Warning | LUB | Bailey | 25 min |
| May 6, 9:24 PM MDT | Severe Thunderstorm Warning | LUB | Hale | 36 min |
| May 6, 9:30 PM MDT | Severe Thunderstorm Warning | LUB | Hale, Lamb | 45 min |
| May 6, 9:37 PM MDT | Severe Thunderstorm Warning | LUB | Hockley, Terry, Yoakum | 38 min |
| May 6, 10:44 PM MDT | Severe Thunderstorm Warning | OUN | Foard, Hardeman | 46 min |
| May 6, 10:48 PM MDT | Severe Thunderstorm Warning | OUN | Tillman | 42 min |
| May 6, 10:54 PM MDT | Severe Thunderstorm Warning | AMA | Armstrong, Potter, Randall | 66 min |
| May 6, 11:03 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 27 min |
| May 6, 11:31 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 59 min |
| May 7, 12:00 AM MDT | Severe Thunderstorm Warning | MAF | Lea | 60 min |
| May 7, 12:00 AM MDT | Tornado Warning | MAF | Andrews, Gaines | 30 min |
| May 7, 12:31 AM MDT | Severe Thunderstorm Warning | MAF | Dawson, Gaines | 44 min |
| May 7, 12:35 AM MDT | Severe Thunderstorm Warning | LUB | Dickens | 40 min |
| May 7, 12:59 AM MDT | Severe Thunderstorm Warning | LUB | Lynn, Terry | 30 min |
| May 7, 1:08 AM MDT | Severe Thunderstorm Warning | ABQ | Chaves, De Baca, Roosevelt | 52 min |
| May 7, 1:08 AM MDT | Severe Thunderstorm Warning | LUB | Cottle, King | 52 min |
| May 7, 1:53 AM MDT | Severe Thunderstorm Warning | OUN | Foard, Hardeman | 28 min |
| May 7, 1:58 AM MDT | Severe Thunderstorm Warning | ABQ | Curry, Roosevelt | 32 min |
| May 7, 1:58 AM MDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa, Tillman | 47 min |
| May 7, 2:19 AM MDT | Severe Thunderstorm Warning | LUB | Crosby, Lubbock | 26 min |
| May 7, 2:31 AM MDT | Severe Thunderstorm Warning | ABQ | Curry | 29 min |
| May 7, 2:31 AM MDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Tillman | 44 min |
| May 7, 2:32 AM MDT | Severe Thunderstorm Warning | LUB | Cochran, Hockley, Lamb | 26 min |
| May 7, 2:39 AM MDT | Severe Thunderstorm Warning | LUB | Floyd | 24 min |
| May 7, 3:02 AM MDT | Severe Thunderstorm Warning | LUB | Lamb | 43 min |
| May 7, 3:39 AM MDT | Severe Thunderstorm Warning | LUB | Castro, Hale, Lamb, Swisher | 44 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, 2.9 hours before the alert went out and 81 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
- 1354 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1336 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 6:08 PM MDT | Severe Thunderstorm Watch | SPC | Allen, Barton, Butler, Chase, Chautauqua, Clay and 31 more | 6 hr |
| May 6, 8:59 PM MDT | Mesoscale Discussion | SPC | Barber, Butler, Chase, Clay, Cloud, Comanche and 26 more | 61 min |
| May 7, 8:52 AM MDT | Mesoscale Discussion | SPC | Cherokee | 83 min |
| May 6, 7:50 PM MDT | Mesoscale Discussion | SPC | Chaves, Curry, Eddy, Lea, Quay, Roosevelt | 85 min |
| May 6, 11:04 PM MDT | Mesoscale Discussion | SPC | Curry, Harding, Lea, Quay, Roosevelt | 86 min |
| May 7, 1:47 AM MDT | Mesoscale Discussion | SPC | Beckham, Caddo, Comanche, Cotton, Custer, Greer and 5 more | 58 min |
| May 7, 6:07 AM MDT | Mesoscale Discussion | SPC | Atoka, Carter, Cherokee, Cleveland, Coal, Creek and 25 more | 53 min |
| May 7, 6:33 AM MDT | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 9 more | 5 hr |
| May 7, 12:33 PM MDT | Tornado Watch | SPC | Atoka, Bryan, Carter, Cleveland, Coal, Cotton and 14 more | 6 hr |
| May 7, 2:13 PM MDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Garvin and 7 more | 2 hr |
| May 7, 3:47 PM MDT | Mesoscale Discussion | SPC | Haskell, Latimer, LeFlore, McCurtain, Pushmataha | 88 min |
| May 7, 4:28 PM MDT | Tornado Watch | SPC | Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 20 more | 8 hr |
| May 7, 5:35 PM MDT | Mesoscale Discussion | SPC | Atoka, Bryan, Choctaw, Coal, Johnston, Marshall | 55 min |
| May 6, 10:35 PM MDT | Mesoscale Discussion | SPC | Bandera, Edwards, Gillespie, Kerr, Kinney, Maverick and 4 more | 85 min |
| May 7, 10:59 AM MDT | Mesoscale Discussion | SPC | Archer, Baylor, Borden, Callahan, Cottle, Crosby and 29 more | 91 min |
| May 7, 12:17 PM MDT | Mesoscale Discussion | SPC | Archer, Baylor, Borden, Callahan, Cottle, Crosby and 29 more | 88 min |
| May 7, 2:42 PM MDT | Tornado Watch | SPC | Anderson, Bell, Ellis, Falls, Freestone, Henderson and 9 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2008Severe Thunderstorm Watches in New Mexico, 2008Severe Thunderstorm Watches in Oklahoma, 2008Every severe thunderstorm watch in 2008
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.