Alert archive / Oklahoma / Tornado Watches in 2013

Tornado Watch 108

April 15, 20137 counties in Arkansas; 33 counties in Oklahoma; 12 counties in Texas

The Storm Prediction Center issued this tornado watch at Apr 15, 2013, 3:41 PM CDT for 7 counties in Arkansas; 33 counties in Oklahoma; 12 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 15, 2013, 3:41 PM CDT (20:41 UTC)
Expired
Apr 15, 2013, 9:52 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt
All 52 counties

Benton County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR, Adair County, OK, Atoka County, OK, Bryan County, OK, Carter County, OK, Cherokee County, OK, Choctaw County, OK, Cleveland County, OK, Coal County, OK, Delaware County, OK, Garvin County, OK, Haskell County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Sequoyah County, OK, Stephens County, OK, Wagoner County, OK, Clay County, TX, Cooke County, TX, Denton County, TX, Eastland County, TX, Grayson County, TX, Jack County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Stephens County, TX, Wise County, TX, Young County, TX

The radar

The Norman radar (KTLX), 101 km from the middle of the area, began a volume at 20:44 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
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
20%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 15, 4:17 PM CDTSevere Thunderstorm WarningFWDJack, Young43 min
Apr 15, 4:57 PM CDTSevere Thunderstorm WarningFWDJack48 min
Apr 15, 5:27 PM CDTSevere Thunderstorm WarningFWDMontague, Wise48 min
Apr 15, 5:48 PM CDTSevere Thunderstorm WarningFWDJack42 min
Apr 15, 6:09 PM CDTSevere Thunderstorm WarningOUNClay51 min
Apr 15, 6:11 PM CDTSevere Thunderstorm WarningFWDCooke, Montague, Wise64 min
Apr 15, 6:26 PM CDTSevere Thunderstorm WarningFWDJack49 min
Apr 15, 7:12 PM CDTSevere Thunderstorm WarningFWDMontague, Wise33 min
Apr 15, 7:53 PM CDTSevere Thunderstorm WarningOUNPottawatomie37 min
Apr 15, 8:22 PM CDTSevere Thunderstorm WarningOUNPottawatomie, Seminole38 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.

IssuedProductOfficeCountiesLasted
Apr 15, 2:50 PM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more85 min
Apr 14, 7:09 PM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Craig, Creek, Delaware, Garfield and 18 more2 hr
Apr 14, 8:56 PM CDTMesoscale DiscussionSPCCherokee, Craig, Creek, Delaware, Lincoln, Mayes and 8 more64 min

Nearby

Tornado Watches in Oklahoma, 2013Tornado Watches in Texas, 2013Tornado Watches in Arkansas, 2013Every tornado 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.