Alert archive / Oklahoma / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 127
The Storm Prediction Center issued this severe thunderstorm watch at Apr 29, 2004, 5:35 PM CDT for 16 counties in Oklahoma; 16 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2004, 5:35 PM CDT (22:35 UTC)
- Expired
- Apr 29, 2004, 11:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 32 counties
Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Grady County, OK, Jefferson County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, McClain County, OK, Oklahoma County, OK, Payne County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Callahan County, TX, Clay County, TX, Fisher County, TX, Haskell County, TX, Jones County, TX, Knox County, TX, Nolan County, TX, Shackelford County, TX, Stephens County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX
The radar
The Altus AFB radar (KFDR), 88 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.
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 5:59 PM CDT | Severe Thunderstorm Warning | OUN | Hardeman, Wilbarger | 46 min |
| Apr 29, 6:06 PM CDT | Severe Thunderstorm Warning | OUN | Foard, Knox | 39 min |
| Apr 29, 6:43 PM CDT | Severe Thunderstorm Warning | OUN | Foard, Wilbarger | 47 min |
| Apr 29, 6:59 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 46 min |
| Apr 29, 7:27 PM CDT | Severe Thunderstorm Warning | OUN | Wilbarger | 48 min |
| Apr 29, 7:47 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 43 min |
| Apr 29, 8:34 PM CDT | Severe Thunderstorm Warning | OUN | Wichita | 41 min |
| Apr 29, 10:10 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 35 min |
| Apr 29, 10:23 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 52 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
Fort Sill, OK (KFSI), launched 12:00Z, 10.6 hours before the alert went out and 140 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 324 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 |
|---|---|---|---|---|
| Apr 29, 1:49 PM CDT | Mesoscale Discussion | SPC | Beckham, Greer, Harmon, Jackson, Tillman | 116 min |
| Apr 29, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beckham, Blaine, Custer, Dewey, Grant and 9 more | 7 hr |
| Apr 29, 5:10 PM CDT | Mesoscale Discussion | SPC | Caddo, Canadian, Carter, Cleveland, Comanche, Cotton and 13 more | 95 min |
| Apr 29, 6:35 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Custer, Dewey, Grant and 9 more | 85 min |
| Apr 28, 7:07 PM CDT | Mesoscale Discussion | SPC | Bandera, Dimmit, Edwards, Frio, Kerr, Kinney and 8 more | 83 min |
| Apr 28, 7:25 PM CDT | Severe Thunderstorm Watch | SPC | Bandera, Brooks, Crockett, Dimmit, Duval, Edwards and 17 more | 6 hr |
| Apr 28, 9:56 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Brooks, Dimmit, Duval, Edwards and 12 more | 94 min |
| Apr 29, 4:12 AM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Brazos, Burleson, Colorado, DeWitt and 18 more | 3 hr |
| Apr 29, 1:10 PM CDT | Tornado Watch | SPC | Shelby | 6 hr |
| Apr 29, 3:58 PM CDT | Mesoscale Discussion | SPC | Borden, Coke, Crockett, Fisher, Glasscock, Howard and 15 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Oklahoma, 2004Severe Thunderstorm Watches in Texas, 2004Every severe thunderstorm watch in 2004
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.