Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 583, NWS Norman, OK

July 23, 2013Kay County, Noble County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 23, 2013, 10:39 PM CDT for Kay County, Noble County, Oklahoma. It was in force for 36 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 23, 2013, 10:39 PM CDT (03:39 UTC)
Expired: Jul 23, 2013, 11:15 PM CDT
In force: 36 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Kay County, OK, Noble County, OK

The radar

The Vance AFB radar (KVNX), 85 km from the middle of the area, began a volume at 03:42 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
Jul 23, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 3.7 hours before the alert went out and 155 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: 3646 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1538 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 165 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 10.9

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 23, 9:31 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Jul 23, 9:31 PM CDT, 1 hour 8 minutes before

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Hazardous weather outlook, Jul 23, 9:40 PM CDT, 59 minutes before

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In the hours before

Special weather statement, Jul 23, 9:16 PM CDT, 1 hour 23 minutes before

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Special weather statement, Jul 23, 9:25 PM CDT, 1 hour 14 minutes before

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Local storm report, Jul 23, 9:28 PM CDT, 1 hour 11 minutes before

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Special weather statement, Jul 23, 9:54 PM CDT, 45 minutes before

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Local storm report, Jul 23, 10:01 PM CDT, 38 minutes before

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Local storm report, Jul 23, 10:25 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
Jul 23, 7:51 PM CDT	Special Weather Statement	OUN	Harper	39 min
Jul 23, 8:18 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	57 min
Jul 23, 8:55 PM CDT	Special Weather Statement	OUN	Woods	20 min
Jul 23, 9:12 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods	48 min
Jul 23, 9:16 PM CDT	Special Weather Statement	OUN	Woods	29 min
Jul 23, 9:25 PM CDT	Special Weather Statement	OUN	Grant, Kay	35 min
Jul 23, 9:33 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant, Kay	42 min
Jul 23, 9:54 PM CDT	Special Weather Statement	OUN	Alfalfa, Woods	36 min
Jul 23, 9:56 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	49 min
Jul 23, 10:10 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	35 min
Jul 23, 10:43 PM CDT	Special Weather Statement	OUN	Major	32 min
Jul 23, 11:47 PM CDT	Special Weather Statement	OUN	Kay	28 min
Jul 24, 12:14 AM CDT	Special Weather Statement	OUN	Kay	46 min
Jul 24, 12:20 AM CDT	Severe Thunderstorm Warning	OUN	Kay	25 min
Jul 24, 12:58 AM CDT	Special Weather Statement	OUN	Garfield, Kingfisher, Logan, Noble, Payne	32 min
Jul 24, 1:44 AM CDT	Special Weather Statement	OUN	Cleveland, Hughes, McClain, Oklahoma, Pottawatomie, Seminole	31 min
Jul 24, 1:54 AM CDT	Special Weather Statement	OUN	Atoka, Coal, Pontotoc	36 min
Jul 24, 2:20 AM CDT	Areal Flood Advisory	OUN	Kay	3 hr
Jul 24, 2:33 AM CDT	Special Weather Statement	OUN	Cleveland, Garvin, McClain, Pontotoc	42 min
Jul 24, 3:03 AM CDT	Special Weather Statement	OUN	Garvin, Johnston, McClain	27 min
Jul 24, 3:25 AM CDT	Severe Thunderstorm Warning	OUN	Coal, Garvin, Johnston, McClain, Murray, Pontotoc and 1 more	50 min
Jul 24, 3:58 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Carter, Coal, Johnston, Love and 2 more	47 min
Jul 24, 4:06 AM CDT	Special Weather Statement	OUN	Garfield, Grant, Kay, Noble, Payne	24 min
Jul 24, 4:39 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan	36 min
Jul 24, 5:00 AM CDT	Special Weather Statement	OUN	Oklahoma	45 min
Jul 24, 5:32 AM CDT	Severe Thunderstorm Warning	OUN	Canadian	28 min
Jul 24, 5:42 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Oklahoma	48 min
Jul 24, 5:50 AM CDT	Severe Thunderstorm Warning	OUN	Grady	40 min
Jul 24, 6:23 AM CDT	Special Weather Statement	OUN	Coal, Garvin, Murray, Pontotoc	37 min
Jul 24, 6:52 AM CDT	Special Weather Statement	OUN	Grady	23 min
Jul 24, 7:03 AM CDT	Special Weather Statement	OUN	Johnston, Murray	27 min
Jul 24, 7:30 AM CDT	Special Weather Statement	OUN	Bryan, Carter, Comanche, Cotton, Jefferson, Johnston and 3 more	45 min
Jul 24, 3:40 PM CDT	Flash Flood Watch	OUN	Atoka, Blaine, Bryan, Caddo, Canadian, Carter and 26 more	43 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2013 Every severe thunderstorm warning in 2013

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.