Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 232, NWS Norman, OK

May 9, 2013Blaine County, Custer County, Dewey County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 9, 2013, 1:25 AM CDT for Blaine County, Custer County, Dewey County, Oklahoma. It was in force for 50 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 9, 2013, 1:25 AM CDT (06:25 UTC)
Expired: May 9, 2013, 2:15 AM CDT
In force: 50 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Blaine County, OK, Custer County, OK, Dewey County, OK

The radar

The Vance AFB radar (KVNX), 118 km from the middle of the area, began a volume at 06:25 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

Lamont, OK (KLMN), launched 00:00Z, 6.4 hours before the alert went out and 148 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: 380 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 2065 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 133 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 8, 11:44 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, May 8, 11:44 PM CDT, 1 hour 41 minutes before

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Hazardous weather outlook, May 8, 10:47 PM CDT, 2 hours 38 minutes before

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In the hours before

Special weather statement, May 8, 10:48 PM CDT, 2 hours 37 minutes before

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Local storm report, May 8, 10:55 PM CDT, 2 hours 30 minutes before

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Special weather statement, May 8, 11:21 PM CDT, 2 hours 4 minutes before

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Special weather statement, May 8, 11:23 PM CDT, 2 hours 2 minutes before

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Local storm report, May 8, 11:54 PM CDT, 1 hour 31 minutes before

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Special weather statement, May 9, 12:44 AM CDT, 41 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 8, 7:03 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo	27 min
May 8, 7:09 PM CDT	Severe Thunderstorm Warning	OUN	Major	51 min
May 8, 7:10 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Kingfisher	50 min
May 8, 7:14 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	46 min
May 8, 7:17 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa	43 min
May 8, 7:29 PM CDT	Severe Thunderstorm Warning	OUN	Woods, Woodward	46 min
May 8, 7:37 PM CDT	Areal Flood Warning	OUN	Canadian	3 hr
May 8, 7:56 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Comanche, Grady	49 min
May 8, 8:13 PM CDT	Severe Thunderstorm Warning	OUN	Woods, Woodward	47 min
May 8, 8:26 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Stephens	49 min
May 8, 8:29 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	46 min
May 8, 8:36 PM CDT	Severe Thunderstorm Warning	OUN	Harper	39 min
May 8, 8:46 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Kingfisher	44 min
May 8, 9:10 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, Lincoln, McClain, Oklahoma, Pontotoc and 2 more	50 min
May 8, 9:32 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher	43 min
May 8, 10:16 PM CDT	Special Weather Statement	OUN	Woodward	29 min
May 8, 10:18 PM CDT	Special Weather Statement	OUN	Logan	27 min
May 8, 10:20 PM CDT	Special Weather Statement	OUN	Lincoln, Seminole	25 min
May 8, 10:33 PM CDT	Severe Thunderstorm Warning	OUN	Logan, Oklahoma	42 min
May 8, 10:47 PM CDT	Special Weather Statement	OUN	Hughes, Seminole	28 min
May 8, 10:48 PM CDT	Special Weather Statement	OUN	Ellis, Woodward	27 min
May 8, 11:21 PM CDT	Special Weather Statement	OUN	Logan	24 min
May 8, 11:23 PM CDT	Special Weather Statement	OUN	Ellis, Woods, Woodward	37 min
May 8, 11:41 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Major, Roger Mills, Woods, Woodward	49 min
May 9, 12:05 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan	40 min
May 9, 12:24 AM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Ellis, Major, Roger Mills, Woodward	66 min
May 9, 12:44 AM CDT	Special Weather Statement	OUN	Alfalfa, Grant	31 min
May 9, 1:27 AM CDT	Special Weather Statement	OUN	Garfield, Grant, Kay	48 min
May 9, 2:03 AM CDT	Special Weather Statement	OUN	Kay, Kingfisher, Logan, Noble	57 min
May 9, 3:05 AM CDT	Special Weather Statement	OUN	Canadian	25 min
May 9, 1:37 PM CDT	Special Weather Statement	OUN	Kiowa	23 min
May 9, 2:00 PM CDT	Special Weather Statement	OUN	Kiowa	30 min
May 9, 2:32 PM CDT	Special Weather Statement	OUN	Comanche	28 min
May 9, 2:55 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton	50 min
May 9, 3:18 PM CDT	Special Weather Statement	OUN	Stephens	27 min
May 9, 4:06 PM CDT	Special Weather Statement	OUN	Stephens	24 min
May 9, 4:43 PM CDT	Special Weather Statement	OUN	Comanche	32 min
May 9, 5:29 PM CDT	Special Weather Statement	OUN	Caddo	16 min
May 9, 5:39 PM CDT	Severe Thunderstorm Warning	OUN	Caddo	51 min
May 9, 5:48 PM CDT	Special Weather Statement	OUN	Tillman	27 min
May 9, 5:56 PM CDT	Special Weather Statement	OUN	Kiowa	34 min
May 9, 6:35 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	40 min
May 9, 6:49 PM CDT	Special Weather Statement	OUN	Canadian	26 min
May 9, 6:50 PM CDT	Special Weather Statement	OUN	Kiowa	25 min
May 8, 7:06 PM CDT	Severe Thunderstorm Warning	OUN	Foard	39 min
May 9, 3:16 PM CDT	Special Weather Statement	OUN	Baylor	29 min
May 9, 6:46 PM CDT	Special Weather Statement	OUN	Hardeman	29 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.