Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 539, NWS Norman, OK

June 16, 2013Cotton County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 16, 2013, 10:27 PM CDT for Cotton County, Oklahoma. It was in force for 48 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 16, 2013, 10:27 PM CDT (03:27 UTC)
Expired: Jun 16, 2013, 11:15 PM CDT
In force: 48 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

County Cotton County, OK

The radar

The Altus AFB radar (KFDR), 56 km from the middle of the area, began a volume at 03:30 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 00:00Z, 3.5 hours before the alert went out and 136 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: 2304 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1497 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.1

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 16, 6:07 PM CDT, 4 hours 20 minutes earlier.

Area forecast discussion, Jun 16, 6:07 PM CDT, 4 hours 20 minutes before

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Hazardous weather outlook, Jun 16, 9:30 PM CDT, 57 minutes before

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In the hours before

Special weather statement, Jun 16, 8:28 PM CDT, 1 hour 59 minutes before

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Local storm report, Jun 16, 8:55 PM CDT, 1 hour 32 minutes before

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Special weather statement, Jun 16, 8:56 PM CDT, 1 hour 31 minutes before

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Local storm report, Jun 16, 9:01 PM CDT, 1 hour 26 minutes before

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Local storm report, Jun 16, 9:14 PM CDT, 1 hour 13 minutes before

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Special weather statement, Jun 16, 10:18 PM CDT, 9 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 16, 7:04 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	56 min
Jun 16, 7:10 PM CDT	Severe Thunderstorm Warning	OUN	Garfield	50 min
Jun 16, 8:11 PM CDT	Special Weather Statement	OUN	Grady	34 min
Jun 16, 8:28 PM CDT	Special Weather Statement	OUN	Comanche	32 min
Jun 16, 8:33 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	42 min
Jun 16, 8:56 PM CDT	Special Weather Statement	OUN	Tillman	34 min
Jun 16, 9:02 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	43 min
Jun 16, 9:14 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	31 min
Jun 16, 9:46 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton	44 min
Jun 16, 10:18 PM CDT	Special Weather Statement	OUN	Harper	27 min
Jun 16, 10:32 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	43 min
Jun 16, 11:12 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Ellis, Grant, Harper, Major, Woods and 1 more	48 min
Jun 17, 12:01 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Dewey, Ellis, Garfield, Grant, Harper and 4 more	59 min
Jun 17, 12:33 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	57 min
Jun 17, 12:45 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Garfield, Kingfisher, Major and 1 more	45 min
Jun 17, 1:27 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Kingfisher, Lincoln, Logan and 3 more	63 min
Jun 17, 1:32 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Custer, Kingfisher, Washita	43 min
Jun 17, 1:53 AM CDT	Special Weather Statement	OUN	Beckham, Greer, Harmon, Kiowa, Washita	22 min
Jun 17, 2:16 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Cleveland, Grady, Kingfisher, Lincoln and 6 more	59 min
Jun 17, 2:32 AM CDT	Special Weather Statement	OUN	Kiowa	28 min
Jun 17, 2:52 AM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	53 min
Jun 17, 2:55 AM CDT	Special Weather Statement	OUN	Comanche, Jackson, Tillman	35 min
Jun 17, 3:16 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Cleveland, Comanche, Cotton, Garvin, Grady and 7 more	44 min
Jun 17, 3:21 AM CDT	Special Weather Statement	OUN	Cotton, Jackson, Tillman	24 min
Jun 17, 3:37 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	53 min
Jun 17, 4:02 AM CDT	Special Weather Statement	OUN	Garvin, Jefferson, McClain, Murray, Pontotoc, Pottawatomie and 2 more	28 min
Jun 17, 4:19 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Kiowa, Tillman	41 min
Jun 17, 4:31 AM CDT	Special Weather Statement	OUN	Carter, Hughes, Murray, Pontotoc, Stephens	29 min
Jun 17, 4:54 AM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson, Stephens, Tillman	66 min
Jun 17, 4:57 AM CDT	Special Weather Statement	OUN	Carter, Coal, Johnston, Love, Marshall, Murray	33 min
Jun 17, 5:34 AM CDT	Special Weather Statement	OUN	Atoka, Bryan, Coal, Johnston, Love, Marshall	26 min
Jun 17, 5:55 AM CDT	Special Weather Statement	OUN	Atoka, Bryan, Johnston, Love, Marshall	35 min
Jun 17, 6:16 AM CDT	Severe Thunderstorm Warning	OUN	Love, Marshall	44 min
Jun 17, 6:24 AM CDT	Special Weather Statement	OUN	Bryan	36 min
Jun 17, 7:09 AM CDT	Special Weather Statement	OUN	Bryan	36 min
Jun 16, 10:47 PM CDT	Special Weather Statement	OUN	Foard	28 min
Jun 17, 12:25 AM CDT	Special Weather Statement	OUN	Wilbarger	50 min
Jun 17, 4:36 AM CDT	Special Weather Statement	OUN	Archer, Baylor, Knox	24 min
Jun 17, 12:59 PM CDT	Special Weather Statement	OUN	Clay	31 min
Jun 17, 1:28 PM CDT	Special Weather Statement	OUN	Clay	47 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2013 Every severe thunderstorm warning in 2013

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.