Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 66, NWS Norman, OK

April 27, 2014Bryan County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 27, 2014, 3:15 PM CDT for Bryan 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: Apr 27, 2014, 3:15 PM CDT (20:15 UTC)
Expired: Apr 27, 2014, 3:45 PM CDT
In force: 30 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.25 in
Wind: 70.0 mph

County Bryan County, OK

The radar

The Norman radar (KTLX), 179 km from the middle of the area, began a volume at 20:18 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

Fort Worth, TX (KFWD), launched 12:00Z, 8.3 hours before the alert went out and 158 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: 2370 J/kg
Mixed-layer CIN: -265 J/kg
Mixed-layer LCL: 662 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 453 m²/s²
0-3 km storm-relative helicity: 548 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Apr 27, 2:53 PM CDT, 22 minutes earlier.

Area forecast discussion, Apr 27, 2:53 PM CDT, 22 minutes before

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Hazardous weather outlook, Apr 27, 12:00 PM CDT, 3 hours 15 minutes before

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In the hours before

Special weather statement, Apr 27, 9:28 AM CDT, 5 hours 47 minutes before

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Special weather statement, Apr 27, 9:57 AM CDT, 5 hours 18 minutes before

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Special weather statement, Apr 27, 10:00 AM CDT, 5 hours 15 minutes before

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Special weather statement, Apr 27, 2:37 PM CDT, 38 minutes before

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Special weather statement, Apr 27, 2:53 PM CDT, 22 minutes before

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Special weather statement, Apr 27, 3:01 PM CDT, 14 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
Apr 26, 8:35 PM CDT	Special Weather Statement	OUN	Harmon	25 min
Apr 26, 8:51 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	39 min
Apr 26, 9:10 PM CDT	Special Weather Statement	OUN	Greer	20 min
Apr 26, 9:29 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Jackson, Kiowa	46 min
Apr 27, 12:07 AM CDT	Special Weather Statement	OUN	Garfield, Kay, Noble	23 min
Apr 27, 12:23 AM CDT	Special Weather Statement	OUN	Roger Mills	37 min
Apr 27, 1:25 AM CDT	Special Weather Statement	OUN	Woodward	35 min
Apr 27, 2:07 AM CDT	Special Weather Statement	OUN	Kay, Noble	38 min
Apr 27, 2:35 AM CDT	Special Weather Statement	OUN	Kay	25 min
Apr 27, 4:58 AM CDT	Special Weather Statement	OUN	Caddo	17 min
Apr 27, 5:13 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Jackson, Kiowa, Tillman	47 min
Apr 27, 5:18 AM CDT	Special Weather Statement	OUN	Comanche	27 min
Apr 27, 5:19 AM CDT	Special Weather Statement	OUN	Grady	26 min
Apr 27, 5:38 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Grady	52 min
Apr 27, 5:40 AM CDT	Special Weather Statement	OUN	Grady	20 min
Apr 27, 5:47 AM CDT	Special Weather Statement	OUN	Logan	13 min
Apr 27, 5:54 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady, Kingfisher, Logan, Oklahoma	51 min
Apr 27, 6:20 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	40 min
Apr 27, 6:33 AM CDT	Special Weather Statement	OUN	Oklahoma	27 min
Apr 27, 6:36 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Logan, Noble, Payne	24 min
Apr 27, 6:38 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan	37 min
Apr 27, 6:52 AM CDT	Special Weather Statement	OUN	Oklahoma	23 min
Apr 27, 7:00 AM CDT	Special Weather Statement	OUN	Oklahoma	30 min
Apr 27, 7:08 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Logan, Oklahoma	22 min
Apr 27, 7:10 AM CDT	Special Weather Statement	OUN	Carter, Love, Murray	50 min
Apr 27, 7:24 AM CDT	Severe Thunderstorm Warning	OUN	Logan, Noble, Payne	51 min
Apr 27, 7:29 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Oklahoma, Payne	46 min
Apr 27, 7:33 AM CDT	Special Weather Statement	OUN	Oklahoma	12 min
Apr 27, 7:39 AM CDT	Special Weather Statement	OUN	Kay	21 min
Apr 27, 7:40 AM CDT	Special Weather Statement	OUN	Jefferson, Stephens	50 min
Apr 27, 7:45 AM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson, Stephens	45 min
Apr 27, 7:51 AM CDT	Special Weather Statement	OUN	Oklahoma	9 min
Apr 27, 7:58 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Johnston, Marshall, Pontotoc	47 min
Apr 27, 8:01 AM CDT	Severe Thunderstorm Warning	OUN	Logan, Oklahoma	29 min
Apr 27, 8:12 AM CDT	Special Weather Statement	OUN	Hughes	48 min
Apr 27, 8:15 AM CDT	Special Weather Statement	OUN	Oklahoma	15 min
Apr 27, 8:17 AM CDT	Special Weather Statement	OUN	Lincoln	28 min
Apr 27, 8:19 AM CDT	Special Weather Statement	OUN	Bryan	26 min
Apr 27, 8:32 AM CDT	Special Weather Statement	OUN	Carter	28 min
Apr 27, 8:36 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Payne	39 min
Apr 27, 8:47 AM CDT	Severe Thunderstorm Warning	OUN	Bryan, Marshall	43 min
Apr 27, 9:04 AM CDT	Special Weather Statement	OUN	Carter, Murray, Pontotoc	56 min
Apr 27, 9:14 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln	46 min
Apr 27, 9:28 AM CDT	Special Weather Statement	OUN	Atoka	32 min
Apr 27, 9:36 AM CDT	Severe Thunderstorm Warning	OUN	Atoka	39 min
Apr 27, 9:57 AM CDT	Special Weather Statement	OUN	Bryan	18 min
Apr 27, 10:00 AM CDT	Special Weather Statement	OUN	Okfuskee	15 min
Apr 27, 2:29 PM CDT	Blowing Dust Advisory	OUN	Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 17 more	6 hr
Apr 27, 2:37 PM CDT	Special Weather Statement	OUN	Bryan	23 min
Apr 27, 2:53 PM CDT	Special Weather Statement	OUN	Bryan	7 min
Apr 27, 3:01 PM CDT	Special Weather Statement	OUN	Bryan	14 min
Apr 26, 7:07 PM CDT	Special Weather Statement	OUN	Knox	23 min
Apr 26, 8:19 PM CDT	Special Weather Statement	OUN	Hardeman	26 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.