Alert archive / Oklahoma / Severe Thunderstorm Watches in 2013
Severe Thunderstorm Watch 489
The Storm Prediction Center issued this severe thunderstorm watch at Aug 8, 2013, 6:23 PM CDT for 28 counties in Oklahoma; 10 counties in Texas. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2013, 6:23 PM CDT (23:23 UTC)
- Expired
- Aug 9, 2013, 2:00 AM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 65 kt
All 38 counties
Atoka County, OK, Blaine County, OK, Bryan County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Grady County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Oklahoma County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Clay County, TX, Cooke County, TX, Denton County, TX, Grayson County, TX, Jack County, TX, Montague County, TX, Palo Pinto County, TX, Stephens County, TX, Wise County, TX, Young County, TX
The radar
The Norman radar (KTLX), 69 km from the middle of the area, began a volume at 23:26 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
- 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
- 30%
- 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 |
|---|---|---|---|---|
| Aug 8, 7:44 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Jackson, Kiowa, Tillman | 46 min |
| Aug 8, 8:36 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Kiowa, Tillman | 39 min |
| Aug 8, 11:08 PM CDT | Severe Thunderstorm Warning | OUN | Cleveland, Grady, McClain, Oklahoma | 52 min |
| Aug 8, 11:12 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Garfield, Kingfisher, Major | 48 min |
| Aug 8, 11:56 PM CDT | Severe Thunderstorm Warning | OUN | Cleveland, McClain, Oklahoma | 49 min |
| Aug 9, 12:09 AM CDT | Flash Flood Warning | OUN | Canadian, Cleveland, Logan, Oklahoma | 3 hr |
| Aug 9, 12:13 AM CDT | Severe Thunderstorm Warning | OUN | Logan, Oklahoma | 32 min |
| Aug 9, 12:38 AM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Logan, Oklahoma, Payne | 52 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:16 PM CDT | Mesoscale Discussion | SPC | Beaver, Cimarron, Texas | 89 min |
| Aug 7, 9:02 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Custer, Dewey, Ellis, Garfield and 6 more | 88 min |
| Aug 7, 10:24 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Custer and 17 more | 7 hr |
| Aug 7, 11:30 PM CDT | Mesoscale Discussion | SPC | Beaver, Texas | 60 min |
| Aug 8, 3:18 AM CDT | Mesoscale Discussion | SPC | Creek, Kay, Lincoln, Logan, Noble, Nowata and 7 more | 87 min |
| Aug 8, 3:57 AM CDT | Severe Thunderstorm Watch | SPC | Craig, Delaware, Mayes, Nowata, Osage, Ottawa and 3 more | 3 hr |
| Aug 8, 3:00 PM CDT | Mesoscale Discussion | SPC | Beaver, Beckham, Cimarron, Ellis, Greer, Harmon and 2 more | 60 min |
| Aug 8, 3:21 PM CDT | Severe Thunderstorm Watch | SPC | Beaver, Beckham, Cimarron, Custer, Dewey, Greer and 7 more | 9 hr |
| Aug 8, 5:02 PM CDT | Mesoscale Discussion | SPC | Blaine, Caddo, Canadian, Carter, Cleveland, Coal and 30 more | 88 min |
| Aug 8, 5:24 PM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 1 more | 66 min |
| Aug 8, 5:32 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Creek, Delaware, Haskell, Latimer and 11 more | 6 hr |
| Aug 8, 6:47 PM CDT | Mesoscale Discussion | SPC | Beaver, Beckham, Cimarron, Custer, Dewey, Greer and 7 more | 88 min |
Nearby
Severe Thunderstorm Watches in Oklahoma, 2013Severe 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; radar from the NEXRAD Level II archive.