Alert archive / Oklahoma / Severe Thunderstorm Watches in 2013
Severe Thunderstorm Watch 199
The Storm Prediction Center issued this severe thunderstorm watch at May 21, 2013, 12:03 AM CDT for 25 counties in Oklahoma. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 21, 2013, 12:03 AM CDT (05:03 UTC)
- Expired
- May 21, 2013, 7:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 25 counties
Atoka County, OK, Caddo County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Grady County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Sequoyah County, OK, Stephens County, OK
The radar
The Norman radar (KTLX), 63 km from the middle of the area, began a volume at 05:04 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
- 5%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 12:12 AM CDT | Severe Thunderstorm Warning | OUN | Garvin, Murray | 48 min |
| May 21, 12:13 AM CDT | Severe Thunderstorm Warning | OUN | Pontotoc, Seminole | 47 min |
| May 21, 12:41 AM CDT | Severe Thunderstorm Warning | OUN | Garvin, McClain, Murray, Pontotoc | 49 min |
| May 21, 12:49 AM CDT | Severe Thunderstorm Warning | OUN | Hughes, Pontotoc | 41 min |
| May 21, 1:10 AM CDT | Severe Thunderstorm Warning | OUN | Hughes, Pontotoc, Seminole | 50 min |
| May 21, 1:32 AM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 43 min |
| May 21, 1:35 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, Pittsburg | 40 min |
| May 21, 1:41 AM CDT | Severe Thunderstorm Warning | OUN | Coal, Hughes, Pontotoc | 49 min |
| May 21, 3:42 AM CDT | Severe Thunderstorm Warning | OUN | Cleveland, McClain, Pottawatomie | 48 min |
| May 21, 5:00 AM CDT | Severe Thunderstorm Warning | OUN | Caddo, Comanche | 45 min |
| May 21, 5:25 AM CDT | Severe Thunderstorm Warning | OUN | Caddo, Comanche, Grady | 50 min |
| May 21, 6:00 AM CDT | Severe Thunderstorm Warning | OUN | Cleveland, Garvin, Grady, McClain | 30 min |
| May 21, 6:44 AM CDT | Flash Flood Warning | TSA | Haskell, Latimer, LeFlore, McIntosh, Muskogee, Pittsburg and 1 more | 6 hr |
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 |
|---|---|---|---|---|
| May 20, 7:39 PM CDT | Tornado Watch | SPC | Adair, Atoka, Bryan, Carter, Choctaw, Haskell and 10 more | 6 hr |
| May 20, 11:36 PM CDT | Mesoscale Discussion | SPC | Atoka, Coal, Garvin, Hughes, Murray, Pittsburg and 2 more | 24 min |
| May 21, 4:20 AM CDT | Mesoscale Discussion | SPC | Atoka, Carter, Cleveland, Coal, Comanche, Garvin and 17 more | 55 min |
| May 21, 8:12 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Jefferson and 8 more | 93 min |
| May 21, 9:46 AM CDT | Mesoscale Discussion | SPC | Caddo, Canadian, Cleveland, Comanche, Cotton, Creek and 26 more | 2 hr |
| May 21, 10:26 AM CDT | Tornado Watch | SPC | Bryan, Choctaw, Love, Marshall | 10 hr |
| May 21, 10:45 AM CDT | Severe Thunderstorm Watch | SPC | Atoka, Caddo, Canadian, Carter, Cleveland, Coal and 30 more | 6 hr |
| May 21, 1:19 PM CDT | Mesoscale Discussion | SPC | Bryan, Choctaw, Marshall, Pushmataha | 116 min |
| May 21, 1:50 PM CDT | Tornado Watch | SPC | McCurtain | 8 hr |
| May 21, 3:18 PM CDT | Mesoscale Discussion | SPC | Bryan, Choctaw, McCurtain, Pushmataha | 87 min |
Nearby
Severe Thunderstorm Watches in Oklahoma, 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.