Alert archive / Oklahoma / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 742
The Storm Prediction Center issued this severe thunderstorm watch at Aug 24, 2005, 3:45 PM CDT for 19 counties in Oklahoma; 11 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 24, 2005, 3:45 PM CDT (20:45 UTC)
- Expired
- Aug 24, 2005, 9:08 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 30 counties
Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Kingfisher County, OK, Kiowa County, OK, Major County, OK, Noble County, OK, Osage County, OK, Roger Mills County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Armstrong County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hall County, TX, Hemphill County, TX, Swisher County, TX, Wheeler County, TX
The radar
The Altus AFB radar (KFDR), 162 km from the middle of the area, began a volume at 20:47 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
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 4:13 PM CDT | Severe Thunderstorm Warning | OUN | Major | 47 min |
| Aug 24, 4:31 PM CDT | Severe Thunderstorm Warning | OUN | Woods | 44 min |
| Aug 24, 4:50 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa | 55 min |
| Aug 24, 4:52 PM CDT | Severe Thunderstorm Warning | OUN | Garfield | 53 min |
| Aug 24, 5:06 PM CDT | Severe Thunderstorm Warning | OUN | Major | 39 min |
| Aug 24, 5:45 PM CDT | Severe Thunderstorm Warning | OUN | Garfield | 45 min |
| Aug 24, 6:25 PM CDT | Severe Thunderstorm Warning | OUN | Garfield | 65 min |
| Aug 24, 7:35 PM CDT | Severe Thunderstorm Warning | OUN | Ellis | 20 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
Norman, OK (KOUN), launched 12:00Z, 8.8 hours before the alert went out and 202 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
- 723 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1573 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 2:31 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Canadian, Custer, Dewey and 14 more | 119 min |
| Aug 24, 3:43 PM CDT | Mesoscale Discussion | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Deaf Smith and 9 more | 62 min |
Nearby
Severe Thunderstorm Watches in Oklahoma, 2005Severe Thunderstorm Watches in Texas, 2005Every severe thunderstorm watch in 2005
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.