Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 686, NWS Norman, OK

June 23, 2019Jefferson County, Stephens County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 23, 2019, 5:45 PM CDT for Jefferson County, Stephens County, Oklahoma. It was in force for 15 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: Jun 23, 2019, 5:45 PM CDT (22:45 UTC)
Expired: Jun 23, 2019, 6:00 PM CDT
In force: 15 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Jefferson County, OK, Stephens County, OK

The radar

The Altus AFB radar (KFDR), 104 km from the middle of the area, began a volume at 22:49 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
Jun 23, 2:14 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 10.8 hours before the alert went out and 110 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: 2987 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 591 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 252 m²/s²
Significant tornado parameter: 3.0
Supercell composite: 16.9

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 Jun 23, 3:46 PM CDT, 1 hour 59 minutes earlier.

Area forecast discussion, Jun 23, 3:46 PM CDT, 1 hour 59 minutes before

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Hazardous weather outlook, Jun 23, 12:00 PM CDT, 5 hours 45 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Norman OK
1200 PM CDT Sun Jun 23 2019

OKZ004>048-050>052-TXZ083>090-241130-
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-
1200 PM CDT Sun Jun 23 2019

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

.DAY ONE...Today and Tonight...

.Thunderstorms...
Thunderstorms will continue to progress slowly south and east
across southern Oklahoma and western north Texas this afternoon
and this evening. Intensification is expected this afternoon.
There is an Enhanced Risk for severe storms across locations
south of Seymour and Wichita Falls in Texas, and south of Waurika,
Davis, and Coalgate in Oklahoma. A Slight Risk extends farther
north to include Wichita Falls, Duncan, Pauls Valley, and Ada.

Damaging wind gusts of 70 mph and hail slightly larger than
golfballs will be possible, primarily in the Enhanced Risk area.
There is also a low risk for tornadoes in the Enhanced Risk area
late this afternoon and early evening.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...
Storm spotter groups and emergency management personnel across
the risk areas should prepare for severe weather operations into
this evening.

.Heavy Rain and Flooding...
Heavy rain will be possible mainly across southeast Oklahoma
through this evening. Avoid areas that normally flood.

.DAYS TWO THROUGH SEVEN...Monday through Saturday...

.Thunderstorms...
There are low chances for storms across portions of southern
Oklahoma and north Texas Monday, with severe weather unlikely.

Thunderstorms will also be possible Tuesday. There is a Marginal
Risk for severe storms across northern and western Oklahoma for
large hail and strong winds.

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

In the hours before

Local storm report, Jun 23, 5:09 PM CDT, 36 minutes before

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Local storm report, Jun 23, 5:12 PM CDT, 33 minutes before

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Special weather statement, Jun 23, 5:24 PM CDT, 21 minutes before

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Local storm report, Jun 23, 5:25 PM CDT, 20 minutes before

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Local storm report, Jun 23, 5:31 PM CDT, 14 minutes before

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Special weather statement, Jun 23, 5:35 PM CDT, 10 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
Jun 22, 7:10 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	50 min
Jun 22, 7:17 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	43 min
Jun 23, 1:16 AM CDT	Special Weather Statement	OUN	Roger Mills	29 min
Jun 23, 1:28 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	47 min
Jun 23, 1:41 AM CDT	Tornado Warning	OUN	Beckham, Roger Mills	34 min
Jun 23, 2:09 AM CDT	Special Weather Statement	OUN	Harper	36 min
Jun 23, 2:13 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Roger Mills	47 min
Jun 23, 2:53 AM CDT	Special Weather Statement	OUN	Woods	37 min
Jun 23, 3:05 AM CDT	Special Weather Statement	OUN	Custer	25 min
Jun 23, 3:07 AM CDT	Special Weather Statement	OUN	Ellis	23 min
Jun 23, 3:28 AM CDT	Special Weather Statement	OUN	Harper	17 min
Jun 23, 3:32 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	43 min
Jun 23, 3:38 AM CDT	Special Weather Statement	OUN	Woodward	37 min
Jun 23, 3:53 AM CDT	Special Weather Statement	OUN	Grant	37 min
Jun 23, 4:12 AM CDT	Special Weather Statement	OUN	Harper	33 min
Jun 23, 4:14 AM CDT	Tornado Warning	OUN	Grant	31 min
Jun 23, 4:39 AM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	51 min
Jun 23, 4:41 AM CDT	Special Weather Statement	OUN	Major	34 min
Jun 23, 5:02 AM CDT	Special Weather Statement	OUN	Blaine	28 min
Jun 23, 5:11 AM CDT	Special Weather Statement	OUN	Major	19 min
Jun 23, 5:12 AM CDT	Special Weather Statement	OUN	Kay	18 min
Jun 23, 5:32 AM CDT	Special Weather Statement	OUN	Kay	28 min
Jun 23, 5:34 AM CDT	Special Weather Statement	OUN	Blaine	26 min
Jun 23, 5:55 AM CDT	Special Weather Statement	OUN	Canadian, Kingfisher	35 min
Jun 23, 5:59 AM CDT	Special Weather Statement	OUN	Kay	31 min
Jun 23, 6:31 AM CDT	Special Weather Statement	OUN	Logan, Payne	29 min
Jun 23, 6:38 AM CDT	Special Weather Statement	OUN	Canadian, Oklahoma	37 min
Jun 23, 6:56 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Noble, Payne	49 min
Jun 23, 7:14 AM CDT	Special Weather Statement	OUN	Lincoln, Oklahoma	31 min
Jun 23, 7:16 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Oklahoma	30 min
Jun 23, 7:43 AM CDT	Special Weather Statement	OUN	Lincoln	32 min
Jun 23, 7:45 AM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Grady, Lincoln, McClain, Oklahoma and 1 more	3 hr
Jun 23, 7:45 AM CDT	Special Weather Statement	OUN	Cleveland, Grady, McClain, Pottawatomie	30 min
Jun 23, 10:11 AM CDT	Special Weather Statement	OUN	Hughes	34 min
Jun 23, 10:40 AM CDT	Special Weather Statement	OUN	Carter, Hughes, Murray, Pontotoc	35 min
Jun 23, 11:11 AM CDT	Special Weather Statement	OUN	Hughes, Murray, Pontotoc	34 min
Jun 23, 11:40 AM CDT	Special Weather Statement	OUN	Coal, Hughes, Pontotoc	35 min
Jun 23, 12:15 PM CDT	Special Weather Statement	OUN	Coal	30 min
Jun 23, 12:22 PM CDT	Special Weather Statement	OUN	Atoka	23 min
Jun 23, 12:42 PM CDT	Special Weather Statement	OUN	Coal	33 min
Jun 23, 12:47 PM CDT	Special Weather Statement	OUN	Grady	28 min
Jun 23, 12:56 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, McClain	49 min
Jun 23, 1:21 PM CDT	Special Weather Statement	OUN	Stephens	24 min
Jun 23, 1:32 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, McClain	43 min
Jun 23, 1:43 PM CDT	Special Weather Statement	OUN	Stephens	32 min
Jun 23, 1:48 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, Stephens	42 min
Jun 23, 1:57 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain	48 min
Jun 23, 2:13 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, Grady, McClain, Pottawatomie, Stephens	47 min
Jun 23, 2:18 PM CDT	Areal Flood Advisory	OUN	Cleveland, Garvin, Grady, McClain, Pottawatomie, Stephens	3 hr
Jun 23, 2:20 PM CDT	Special Weather Statement	OUN	Cotton	25 min
Jun 23, 2:27 PM CDT	Severe Thunderstorm Warning	OUN	Cotton	48 min
Jun 23, 2:32 PM CDT	Severe Thunderstorm Warning	OUN	Pontotoc, Pottawatomie, Seminole	43 min
Jun 23, 2:55 PM CDT	Severe Thunderstorm Warning	OUN	Pontotoc, Seminole	35 min
Jun 23, 3:01 PM CDT	Special Weather Statement	OUN	Garvin, Stephens	29 min
Jun 23, 3:03 PM CDT	Special Weather Statement	OUN	Hughes	27 min
Jun 23, 3:08 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Pontotoc, Seminole	52 min
Jun 23, 3:16 PM CDT	Special Weather Statement	OUN	Jefferson	29 min
Jun 23, 3:26 PM CDT	Areal Flood Advisory	OUN	Hughes, Pontotoc, Pottawatomie, Seminole	3 hr
Jun 23, 3:33 PM CDT	Special Weather Statement	OUN	Garvin	27 min
Jun 23, 3:36 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson, Stephens	39 min
Jun 23, 3:41 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Stephens	49 min
Jun 23, 3:44 PM CDT	Special Weather Statement	OUN	Pontotoc	31 min
Jun 23, 3:57 PM CDT	Areal Flood Advisory	OUN	Cotton	3 hr
Jun 23, 4:02 PM CDT	Areal Flood Advisory	OUN	Coal, Hughes, Pontotoc, Seminole	3 hr
Jun 23, 4:08 PM CDT	Special Weather Statement	OUN	Pontotoc	52 min
Jun 23, 4:11 PM CDT	Severe Thunderstorm Warning	OUN	Grady, Stephens	49 min
Jun 23, 4:17 PM CDT	Special Weather Statement	OUN	Jefferson	28 min
Jun 23, 4:21 PM CDT	Severe Thunderstorm Warning	OUN	Stephens	23 min
Jun 23, 4:22 PM CDT	Flash Flood Warning	OUN	Coal, Hughes, Pontotoc	3 hr
Jun 23, 4:24 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	45 min
Jun 23, 4:28 PM CDT	Special Weather Statement	OUN	Garvin	32 min
Jun 23, 4:29 PM CDT	Special Weather Statement	OUN	Atoka	31 min
Jun 23, 4:36 PM CDT	Areal Flood Advisory	OUN	Stephens	114 min
Jun 23, 4:50 PM CDT	Areal Flood Advisory	OUN	Garvin	3 hr
Jun 23, 4:52 PM CDT	Special Weather Statement	OUN	Johnston	23 min
Jun 23, 4:53 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, McClain	52 min
Jun 23, 4:58 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	47 min
Jun 23, 5:04 PM CDT	Severe Thunderstorm Warning	OUN	Cotton	41 min
Jun 23, 5:05 PM CDT	Special Weather Statement	OUN	Pontotoc	25 min
Jun 23, 5:24 PM CDT	Special Weather Statement	OUN	Johnston	36 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2019 Every severe thunderstorm warning in 2019

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.