Alert archive / Oklahoma / Mesoscale Discussions in 2020

Mesoscale Discussion 484

April 28, 20204 states

The Storm Prediction Center issued this mesoscale discussion at Apr 28, 2020, 1:55 PM CDT for 4 states. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Apr 28, 2020, 1:55 PM CDT (18:55 UTC)
Expired: Apr 28, 2020, 4:30 PM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Chance of a watch: 95%

All 68 counties

Benton County, AR, Carroll County, AR, Crawford County, AR, Madison County, AR, Washington County, AR, Allen County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Cowley County, KS, Crawford County, KS, Elk County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Barry County, MO, Barton County, MO, Cedar County, MO, Dade County, MO, Greene County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Polk County, MO, Stone County, MO, Vernon County, MO, Adair County, OK, Blaine County, OK, Canadian County, OK, Cherokee County, OK, Cleveland County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Haskell County, OK, Hughes County, OK, Kay County, OK, Kingfisher County, OK, Latimer County, OK, Lincoln County, OK, Logan County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Muskogee County, OK, Noble County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 41 km from the middle of the area, began a volume at 18:57 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 28, 3:18 PM CDT	Tornado Watch	SPC	Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more	8 hr
Apr 28, 6:15 PM CDT	Mesoscale Discussion	SPC	Benton, Carroll, Crawford, Madison, Washington	2 hr
Apr 28, 6:41 PM CDT	Mesoscale Discussion	SPC	Baxter, Clay, Cleburne, Conway, Craighead, Faulkner and 21 more	64 min
Apr 28, 3:30 PM CDT	Severe Thunderstorm Watch	SPC	Allen, Butler, Cowley, Greenwood, Sumner, Woodson	8 hr
Apr 28, 3:33 PM CDT	Mesoscale Discussion	SPC	Audrain, Benton, Boone, Callaway, Carroll, Chariton and 32 more	87 min
Apr 28, 3:51 PM CDT	Severe Thunderstorm Watch	SPC	Audrain, Bates, Benton, Boone, Callaway, Camden and 54 more	7 hr
Apr 28, 6:32 PM CDT	Mesoscale Discussion	SPC	Audrain, Barton, Benton, Bollinger, Boone, Callaway and 50 more	118 min

Nearby

Mesoscale Discussions in Oklahoma, 2020 Mesoscale Discussions in Missouri, 2020 Mesoscale Discussions in Kansas, 2020 Every mesoscale discussion in 2020

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.