Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 237, NWS Norman, OK

May 24, 2018Garfield County, Kingfisher County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 24, 2018, 5:33 PM CDT for Garfield County, Kingfisher County, Oklahoma. It was in force for 27 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 24, 2018, 5:33 PM CDT (22:33 UTC)
Expired
May 24, 2018, 6:00 PM CDT
In force
27 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Garfield County, OK, Kingfisher County, OK

The radar

The Vance AFB radar (KVNX), 69 km from the middle of the area, began a volume at 22:35 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 nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 10.6 hours before the alert went out and 113 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-pSkew-T log-p diagram, Norman, OK at 12:00Z on 2018-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 538 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 12:00Z on 2018-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
538 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
971 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 24, 4:00 PM CDT, 1 hour 33 minutes earlier.

Area forecast discussion, May 24, 4:00 PM CDT, 1 hour 33 minutes before
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Hazardous weather outlook, May 24, 11:59 AM CDT, 5 hours 34 minutes before
Hazardous Weather Outlook
National Weather Service Norman OK
1159 AM CDT Thu May 24 2018

OKZ004>048-050>052-TXZ083>090-251700-
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-
1159 AM CDT Thu May 24 2018

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

.DAY ONE...Through Tonight...

.Thunderstorms...
Isolated to scattered thunderstorms are possible across the area
today. One or two severe storms are possible this afternoon and
evening, with the greatest hazard being brief localized damaging
wind gusts. Locally heavy rainfall will also be possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

.Thunderstorms...
Thunderstorms are expected to develop Friday afternoon, primarily
across the northern half of Oklahoma. A few of these storms could
be severe with greatest hazard being damaging with gusts.
Thunderstorms may increase in coverage Friday evening and move
southward across much of the area through early Saturday morning.

A few thunderstorms could move into western Oklahoma during the
evening hours Sunday, Monday, and Tuesday. Severe thunderstorms
are unlikely during this period.

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

Mahale

In the hours before

Special weather statement, May 24, 4:31 PM CDT, 1 hour 2 minutes before
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Special weather statement, May 24, 4:41 PM CDT, 52 minutes before
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Special weather statement, May 24, 4:44 PM CDT, 49 minutes before
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Special weather statement, May 24, 4:49 PM CDT, 44 minutes before
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Special weather statement, May 24, 5:06 PM CDT, 27 minutes before
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Special weather statement, May 24, 5:27 PM CDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 7:13 PM CDTSpecial Weather StatementOUNWoods32 min
May 23, 7:38 PM CDTSpecial Weather StatementOUNAlfalfa37 min
May 23, 7:59 PM CDTSpecial Weather StatementOUNAtoka31 min
May 23, 8:13 PM CDTSpecial Weather StatementOUNWoods32 min
May 23, 8:25 PM CDTSpecial Weather StatementOUNAtoka20 min
May 23, 8:44 PM CDTSpecial Weather StatementOUNAlfalfa31 min
May 23, 8:58 PM CDTAreal Flood AdvisoryOUNAlfalfa, Woods3 hr
May 23, 9:08 PM CDTSpecial Weather StatementOUNWoods37 min
May 23, 9:15 PM CDTSpecial Weather StatementOUNAlfalfa30 min
May 23, 9:31 PM CDTSpecial Weather StatementOUNHarper29 min
May 23, 9:35 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Woods25 min
May 23, 9:39 PM CDTSpecial Weather StatementOUNWoods36 min
May 23, 9:54 PM CDTSpecial Weather StatementOUNHarper36 min
May 23, 9:59 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Woods46 min
May 23, 10:10 PM CDTFlash Flood WarningOUNAlfalfa, Woods4 hr
May 24, 12:23 AM CDTSpecial Weather StatementOUNWoods37 min
May 24, 12:56 AM CDTAreal Flood AdvisoryOUNWoods3 hr
May 24, 1:19 AM CDTSpecial Weather StatementOUNAlfalfa26 min
May 24, 2:59 AM CDTAreal Flood WarningOUNAlfalfa, Woods3 hr
May 24, 2:47 PM CDTSpecial Weather StatementOUNGrant28 min
May 24, 2:59 PM CDTSpecial Weather StatementOUNGarfield31 min
May 24, 3:05 PM CDTSevere Thunderstorm WarningOUNGarfield25 min
May 24, 3:20 PM CDTSpecial Weather StatementOUNGrant25 min
May 24, 3:23 PM CDTSevere Thunderstorm WarningOUNGarfield, Noble52 min
May 24, 3:43 PM CDTSevere Thunderstorm WarningOUNGrant, Kay47 min
May 24, 3:44 PM CDTSpecial Weather StatementOUNBlaine31 min
May 24, 3:45 PM CDTSpecial Weather StatementOUNGarfield30 min
May 24, 3:57 PM CDTSpecial Weather StatementOUNLogan33 min
May 24, 4:14 PM CDTSpecial Weather StatementOUNNoble31 min
May 24, 4:15 PM CDTSpecial Weather StatementOUNBlaine30 min
May 24, 4:31 PM CDTSpecial Weather StatementOUNNoble29 min
May 24, 4:41 PM CDTSpecial Weather StatementOUNKingfisher34 min
May 24, 4:42 PM CDTSevere Thunderstorm WarningOUNKingfisher48 min
May 24, 4:44 PM CDTSpecial Weather StatementOUNBlaine31 min
May 24, 4:49 PM CDTSpecial Weather StatementOUNLogan26 min
May 24, 4:53 PM CDTSevere Thunderstorm WarningOUNBlaine, Canadian22 min
May 24, 5:06 PM CDTSpecial Weather StatementOUNKingfisher24 min
May 24, 5:12 PM CDTSevere Thunderstorm WarningOUNKingfisher33 min
May 24, 5:27 PM CDTSpecial Weather StatementOUNKingfisher33 min
May 24, 5:34 PM CDTSpecial Weather StatementOUNMajor26 min
May 24, 5:58 PM CDTSpecial Weather StatementOUNGarfield32 min
May 24, 6:00 PM CDTSpecial Weather StatementOUNLogan30 min
May 24, 6:14 PM CDTSpecial Weather StatementOUNAlfalfa31 min
May 24, 6:40 PM CDTSpecial Weather StatementOUNMajor35 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2018Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.