Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 232, NWS Norman, OK

July 13, 2014Ellis County, Woodward County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 13, 2014, 8:00 PM CDT for Ellis County, Woodward County, Oklahoma. It was in force for 30 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: Jul 13, 2014, 8:00 PM CDT (01:00 UTC)
Expired: Jul 13, 2014, 8:30 PM CDT
In force: 30 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 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 00:59 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, 1.0 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: 125 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 2907 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 55 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 Jul 13, 6:19 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, Jul 13, 6:19 PM CDT, 1 hour 41 minutes before

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Hazardous weather outlook, Jul 13, 7:45 PM CDT, 15 minutes before

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In the hours before

Special weather statement, Jul 13, 6:47 PM CDT, 1 hour 13 minutes before

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Local storm report, Jul 13, 6:55 PM CDT, 1 hour 5 minutes before

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Local storm report, Jul 13, 7:14 PM CDT, 46 minutes before

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Local storm report, Jul 13, 7:37 PM CDT, 23 minutes before

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Special weather statement, Jul 13, 7:41 PM CDT, 19 minutes before

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Special weather statement, Jul 13, 7:52 PM CDT, 8 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
Jul 13, 7:41 PM CDT	Special Weather Statement	OUN	Ellis	34 min
Jul 13, 7:52 PM CDT	Special Weather Statement	OUN	Woodward	23 min
Jul 13, 8:44 PM CDT	Special Weather Statement	OUN	Ellis	31 min
Jul 13, 9:23 PM CDT	Special Weather Statement	OUN	Dewey	37 min
Jul 14, 1:22 PM CDT	Special Weather Statement	OUN	Caddo	53 min
Jul 14, 2:23 PM CDT	Special Weather Statement	OUN	Caddo	37 min
Jul 14, 2:32 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Kiowa	43 min
Jul 14, 3:06 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	24 min
Jul 14, 3:19 PM CDT	Special Weather Statement	OUN	Stephens	26 min
Jul 14, 3:30 PM CDT	Special Weather Statement	OUN	Kiowa	30 min
Jul 14, 4:38 PM CDT	Severe Thunderstorm Warning	OUN	Kay	52 min
Jul 14, 5:03 PM CDT	Special Weather Statement	OUN	Woods	42 min
Jul 14, 5:29 PM CDT	Special Weather Statement	OUN	Noble	31 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.