Alert archive / Oklahoma / Mesoscale Discussions in 2018

Mesoscale Discussion 431

May 15, 201811 counties in Oklahoma; Fannin County, Grayson County, Lamar County, Texas

The Storm Prediction Center issued this mesoscale discussion at May 15, 2018, 3:17 PM CDT for 11 counties in Oklahoma; Fannin County, Grayson County, Lamar County, Texas. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued
May 15, 2018, 3:17 PM CDT (20:17 UTC)
Expired
May 15, 2018, 4:45 PM CDT
In force
88 min
Issued by
the Storm Prediction Center
Chance of a watch
20%

Counties Atoka County, OK, Bryan County, OK, Choctaw County, OK, Coal County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Fannin County, TX, Grayson County, TX, Lamar County, TX

The radar

The Norman radar (KTLX), 173 km from the middle of the area, began a volume at 20:18 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.

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 14, 7:15 PM CDTMesoscale DiscussionSPCCraig, Nowata, Ottawa, Washington90 min
May 14, 8:05 PM CDTMesoscale DiscussionSPCAlfalfa, Beckham, Blaine, Caddo, Custer, Dewey and 11 more85 min
May 14, 11:30 PM CDTMesoscale DiscussionSPCCraig, Delaware, Mayes, Nowata, Osage, Ottawa and 2 more90 min
May 15, 11:31 AM CDTMesoscale DiscussionSPCCarter, Cleveland, Coal, Garvin, Grady, Johnston and 5 more119 min
May 15, 2:32 PM CDTMesoscale DiscussionSPCCimarron118 min
May 15, 5:17 PM CDTSevere Thunderstorm WatchSPCCimarron, Texas8 hr
May 15, 1:51 PM CDTMesoscale DiscussionSPCBorden, Coke, Crockett, Crosby, Dawson, Dickens and 22 more114 min

Nearby

Mesoscale Discussions in Oklahoma, 2018Mesoscale Discussions in Texas, 2018Every mesoscale discussion in 2018

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.