Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 296, NWS Norman, OK

October 9, 2014Ellis County, Woodward County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Oct 9, 2014, 7:47 PM CDT for Ellis County, Woodward County, Oklahoma. It was in force for 43 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: Oct 9, 2014, 7:47 PM CDT (00:47 UTC)
Expired: Oct 9, 2014, 8:30 PM CDT
In force: 43 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Ellis County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 132 km from the middle of the area, began a volume at 00:48 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
Oct 9, 5:16 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.8 hours before the alert went out and 226 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: 414 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1786 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.2

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 Oct 9, 7:10 PM CDT, 37 minutes earlier.

Area forecast discussion, Oct 9, 7:10 PM CDT, 37 minutes before

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In the hours before

Special weather statement, Oct 9, 7:37 PM CDT, 10 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 9, 7:37 PM CDT	Special Weather Statement	OUN	Ellis	23 min
Oct 9, 8:24 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	51 min
Oct 9, 9:14 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	46 min
Oct 9, 9:57 PM CDT	Severe Thunderstorm Warning	OUN	Major, Woods, Woodward	48 min
Oct 9, 10:19 PM CDT	Special Weather Statement	OUN	Kay	26 min
Oct 9, 10:41 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	49 min
Oct 9, 10:52 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	38 min
Oct 9, 11:19 PM CDT	Special Weather Statement	OUN	Roger Mills	26 min
Oct 9, 11:28 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	47 min
Oct 9, 11:30 PM CDT	Special Weather Statement	OUN	Alfalfa	30 min
Oct 9, 11:49 PM CDT	Special Weather Statement	OUN	Dewey	41 min
Oct 10, 12:00 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Roger Mills, Washita	45 min
Oct 10, 12:43 AM CDT	Special Weather Statement	OUN	Custer	32 min
Oct 10, 1:10 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	50 min
Oct 10, 1:17 AM CDT	Special Weather Statement	OUN	Blaine	28 min
Oct 10, 1:34 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Kingfisher	41 min
Oct 10, 2:07 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher	23 min
Oct 10, 2:10 AM CDT	Special Weather Statement	OUN	Blaine	50 min
Oct 10, 2:12 AM CDT	Special Weather Statement	OUN	Roger Mills	48 min
Oct 10, 2:30 AM CDT	Special Weather Statement	OUN	Kingfisher, Logan	45 min
Oct 10, 2:51 AM CDT	Special Weather Statement	OUN	Canadian	24 min
Oct 10, 5:36 AM CDT	Special Weather Statement	OUN	Payne	24 min
Oct 10, 5:56 AM CDT	Special Weather Statement	OUN	Lincoln, Payne	49 min
Oct 10, 1:52 PM CDT	Special Weather Statement	OUN	Pontotoc	23 min
Oct 10, 2:23 PM CDT	Special Weather Statement	OUN	Hughes	37 min
Oct 10, 3:04 PM CDT	Special Weather Statement	OUN	Cleveland	26 min
Oct 10, 3:14 PM CDT	Special Weather Statement	OUN	Canadian	31 min
Oct 10, 3:28 PM CDT	Special Weather Statement	OUN	Pottawatomie	32 min
Oct 10, 3:32 PM CDT	Special Weather Statement	OUN	Jefferson	28 min
Oct 10, 3:39 PM CDT	Special Weather Statement	OUN	Oklahoma	51 min
Oct 10, 3:52 PM CDT	Special Weather Statement	OUN	Pottawatomie, Seminole	23 min
Oct 10, 3:56 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Pottawatomie, Seminole	49 min
Oct 10, 4:32 PM CDT	Special Weather Statement	OUN	Kiowa	28 min
Oct 10, 5:12 PM CDT	Special Weather Statement	OUN	Grady	33 min
Oct 10, 5:45 PM CDT	Special Weather Statement	OUN	Cleveland	30 min
Oct 10, 6:27 PM CDT	Special Weather Statement	OUN	Oklahoma	33 min
Oct 10, 6:28 PM CDT	Special Weather Statement	OUN	Cotton	32 min
Oct 10, 6:32 PM CDT	Special Weather Statement	OUN	Knox	28 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2014 Every severe thunderstorm warning in 2014

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.