Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 113, NWS Norman, OK

May 13, 2010Atoka County, Coal County, Johnston County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 13, 2010, 11:18 AM CDT for Atoka County, Coal County, Johnston County, Oklahoma. It was in force for 45 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 13, 2010, 11:18 AM CDT (16:18 UTC)
Expired: May 13, 2010, 12:03 PM CDT
In force: 45 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Atoka County, OK, Coal County, OK, Johnston County, OK

The radar

The Norman radar (KTLX), 133 km from the middle of the area, began a volume at 16:19 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 12:00Z, 4.3 hours before the alert went out and 131 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1493 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 221 m²/s²
0-3 km storm-relative helicity: 218 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 13, 3:41 AM CDT, 7 hours 37 minutes earlier.

Area forecast discussion, May 13, 3:41 AM CDT, 7 hours 37 minutes before

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Hazardous weather outlook, May 13, 8:30 AM CDT, 2 hours 48 minutes before

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In the hours before

Special weather statement, May 13, 10:30 AM CDT, 48 minutes before

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Special weather statement, May 13, 10:39 AM CDT, 39 minutes before

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Special weather statement, May 13, 10:56 AM CDT, 22 minutes before

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Special weather statement, May 13, 11:05 AM CDT, 13 minutes before

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Special weather statement, May 13, 11:08 AM CDT, 10 minutes before

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Special weather statement, May 13, 11:14 AM CDT, 4 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 12, 7:27 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Major, Woodward	49 min
May 12, 7:35 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Washita	40 min
May 12, 7:47 PM CDT	Severe Thunderstorm Warning	OUN	Beckham	28 min
May 12, 7:55 PM CDT	Tornado Warning	OUN	Washita	35 min
May 12, 8:14 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Washita	61 min
May 12, 8:23 PM CDT	Tornado Warning	OUN	Custer, Washita	52 min
May 12, 8:51 PM CDT	Tornado Warning	OUN	Blaine	28 min
May 12, 9:11 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	79 min
May 12, 9:50 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Garfield, Kingfisher, Major	40 min
May 12, 10:14 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Major, Woodward	61 min
May 12, 10:30 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant	60 min
May 12, 10:51 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Ellis, Roger Mills	54 min
May 12, 11:04 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Blaine, Dewey, Garfield, Kingfisher, Major	56 min
May 12, 11:15 PM CDT	Severe Thunderstorm Warning	OUN	Kay	75 min
May 12, 11:40 PM CDT	Tornado Warning	OUN	Kay	20 min
May 12, 11:47 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Roger Mills	58 min
May 12, 11:53 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Major	50 min
May 13, 12:14 AM CDT	Areal Flood Advisory	OUN	Garfield, Grant	3 hr
May 13, 12:27 AM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay, Noble	63 min
May 13, 12:48 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey	42 min
May 13, 1:34 AM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson, Kiowa	56 min
May 13, 1:47 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	43 min
May 13, 2:21 AM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson	39 min
May 13, 2:22 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	53 min
May 13, 2:46 AM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Stephens	59 min
May 13, 3:07 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Cleveland, Comanche, Garvin, Grady, McClain	53 min
May 13, 3:33 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Johnston, Murray, Pontotoc	57 min
May 13, 3:57 AM CDT	Severe Thunderstorm Warning	OUN	Hughes, Lincoln, McClain, Pontotoc, Pottawatomie, Seminole	63 min
May 13, 4:47 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Hughes, Johnston, Pontotoc, Seminole	58 min
May 13, 12:53 AM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman, Knox	52 min
May 13, 9:06 AM CDT	Severe Thunderstorm Warning	OUN	Clay	27 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2010 Every severe thunderstorm warning in 2010

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.