Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 499, NWS Norman, OK

June 13, 20164 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 13, 2016, 11:59 PM CDT for 4 counties in Oklahoma. It was in force for 46 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 13, 2016, 11:59 PM CDT (04:59 UTC)
Expired: Jun 14, 2016, 12:45 AM CDT
In force: 46 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dewey County, OK, Ellis County, OK, Roger Mills County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 138 km from the middle of the area, began a volume at 05:02 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
Jun 13, 6:49 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 5.0 hours before the alert went out and 193 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: 261 J/kg
Mixed-layer CIN: -199 J/kg
Mixed-layer LCL: 1889 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -27 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.7

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 13, 7:13 PM CDT, 4 hours 46 minutes earlier.

Area forecast discussion, Jun 13, 7:13 PM CDT, 4 hours 46 minutes before

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Hazardous weather outlook, Jun 13, 9:00 PM CDT, 2 hours 59 minutes before

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In the hours before

Special weather statement, Jun 13, 8:52 PM CDT, 3 hours 7 minutes before

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Special weather statement, Jun 13, 9:18 PM CDT, 2 hours 41 minutes before

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Special weather statement, Jun 13, 9:51 PM CDT, 2 hours 8 minutes before

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Special weather statement, Jun 13, 10:27 PM CDT, 1 hour 32 minutes before

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Special weather statement, Jun 13, 11:11 PM CDT, 48 minutes before

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Special weather statement, Jun 13, 11:51 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
Jun 13, 8:52 PM CDT	Special Weather Statement	OUN	Harper	23 min
Jun 13, 9:18 PM CDT	Special Weather Statement	OUN	Harper	42 min
Jun 13, 9:51 PM CDT	Special Weather Statement	OUN	Woods	39 min
Jun 13, 10:27 PM CDT	Special Weather Statement	OUN	Alfalfa, Major, Woods	48 min
Jun 13, 11:11 PM CDT	Special Weather Statement	OUN	Roger Mills	49 min
Jun 13, 11:51 PM CDT	Special Weather Statement	OUN	Beckham, Custer, Dewey, Roger Mills, Washita	39 min
Jun 14, 12:25 AM CDT	Special Weather Statement	OUN	Beckham, Custer, Greer, Harmon, Kiowa, Washita	50 min
Jun 14, 12:48 AM CDT	Special Weather Statement	OUN	Dewey	27 min
Jun 14, 1:14 AM CDT	Special Weather Statement	OUN	Comanche, Greer, Harmon, Jackson, Kiowa	46 min
Jun 14, 1:16 AM CDT	Special Weather Statement	OUN	Blaine, Canadian, Custer	44 min
Jun 14, 1:55 AM CDT	Special Weather Statement	OUN	Comanche, Jackson, Tillman	50 min
Jun 14, 1:58 AM CDT	Special Weather Statement	OUN	Caddo, Canadian	47 min
Jun 14, 4:01 AM CDT	Heat Advisory	OUN	Alfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 36 more	5 days
Jun 14, 6:34 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Kiowa, Washita	41 min
Jun 14, 7:00 AM CDT	Special Weather Statement	OUN	Kiowa	30 min
Jun 14, 7:21 AM CDT	Special Weather Statement	OUN	Comanche	24 min
Jun 14, 7:42 AM CDT	Areal Flood Advisory	OUN	Comanche	2 hr
Jun 14, 7:51 AM CDT	Special Weather Statement	OUN	Comanche, Grady, Stephens	39 min
Jun 14, 8:05 AM CDT	Flash Flood Warning	OUN	Caddo, Comanche, Grady, Stephens	115 min
Jun 14, 8:15 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Grady, Stephens	30 min
Jun 14, 8:47 AM CDT	Special Weather Statement	OUN	Garvin	28 min
Jun 14, 9:04 AM CDT	Areal Flood Advisory	OUN	Garvin	116 min
Jun 14, 4:20 AM CDT	Special Weather Statement	OUN	Clay	25 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2016 Every severe thunderstorm warning in 2016

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.