Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 285, NWS Norman, OK

May 19, 2022Dewey County, Ellis County, Roger Mills County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 19, 2022, 12:29 AM CDT for Dewey County, Ellis County, Roger Mills County, Oklahoma. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 19, 2022, 12:29 AM CDT (05:29 UTC)
Expired: May 19, 2022, 1:15 AM CDT
In force: 46 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.0 in
Wind: 70.0 mph

Counties Dewey County, OK, Ellis County, OK, Roger Mills County, OK

The radar

The Vance AFB radar (KVNX), 149 km from the middle of the area, began a volume at 05:32 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 18, 9:47 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 5.5 hours before the alert went out and 204 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1570 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1972 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 18, 11:22 PM CDT, 1 hour 7 minutes earlier.

Area forecast discussion, May 18, 11:22 PM CDT, 1 hour 7 minutes before

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Hazardous weather outlook, May 18, 8:24 PM CDT, 4 hours 5 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Norman OK
824 PM CDT Wed May 18 2022

OKZ004>048-050>052-TXZ083>090-200130-
Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield-
Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne-
Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain-
Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson-
Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton-
Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman-
Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay-
824 PM CDT Wed May 18 2022

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...Through Tonight...

.Thunderstorms...
Severe thunderstorms are possible late this evening through
overnight, especially across northern Oklahoma, as a complex of
thunderstorms is forecast to move eastward across the area.
Damaging wind gusts up to 80 mph is the primary hazard, but hail
up to the size of golf balls cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

.Heat...
Record to near-record temperatures continue on Thursday. Limit
outdoor activities and drink plenty of water. Be sure to
take heat precautions to avoid heat related illnesses.

.Fire Weather...
Near critical fire weather conditions are possible again on
Thursday with elevated conditions on Friday across parts of
western Oklahoma and adjacent parts of Texas.

.Thunderstorms...
Severe thunderstorms capable of producing large hail and damaging
wind gusts are possible on Friday. Thunderstorms will be possible
over southeastern Oklahoma Saturday with widespread chances
returning Sunday night through Tuesday.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on Twitter and Facebook.

Mahale/Barnes

In the hours before

Special weather statement, May 18, 10:52 PM CDT, 1 hour 37 minutes before

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Local storm report, May 19, 12:29 AM CDT, 0 minutes before

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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 18, 10:52 PM CDT	Special Weather Statement	OUN	Harper	38 min
May 18, 11:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Ellis, Harper	81 min
May 19, 12:06 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Ellis, Harper, Woods, Woodward	54 min
May 19, 12:52 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Dewey, Ellis, Harper, Major, Woods, Woodward	53 min
May 19, 12:54 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	51 min
May 19, 1:05 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Ellis, Roger Mills, Washita	40 min
May 19, 1:26 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Alfalfa, Blaine, Custer, Dewey, Major, Woods and 1 more	64 min
May 19, 1:41 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Custer, Washita	49 min
May 19, 2:00 AM CDT	Special Weather Statement	OUN	Canadian, Kingfisher	45 min
May 19, 2:05 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Alfalfa, Blaine, Garfield, Grant, Kingfisher, Logan and 2 more	55 min
May 19, 2:15 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Blaine, Caddo, Canadian, Grady, Kingfisher	45 min
May 19, 2:21 AM CDT	Special Weather Statement	OUN	Comanche, Cotton, Jackson, Kiowa, Tillman, Washita	54 min
May 19, 2:41 AM CDT	Special Weather Statement	OUN	Logan, Oklahoma	49 min
May 19, 2:53 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Alfalfa, Garfield, Grant, Kay, Kingfisher, Logan and 2 more	67 min
May 19, 3:06 AM CDT	Special Weather Statement	OUN	Cotton, Garvin, McClain, Stephens	24 min
May 19, 3:13 AM CDT	Special Weather Statement	OUN	Cleveland, Lincoln, Logan, McClain, Oklahoma, Payne and 1 more	32 min
May 19, 10:21 AM CDT	Red Flag Warning	OUN	Baylor, Foard, Hardeman, Knox, Wilbarger	10 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2022 Every severe thunderstorm warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.