Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 362, NWS Norman, OK

May 7, 20086 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 7, 2008, 5:44 AM CDT for 6 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: May 7, 2008, 5:44 AM CDT (10:44 UTC)
Expired: May 7, 2008, 6:30 AM CDT
In force: 46 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Cleveland County, OK, Garvin County, OK, Grady County, OK, McClain County, OK, Pottawatomie County, OK, Stephens County, OK

The radar

The Norman radar (KTLX), 47 km from the middle of the area, began a volume at 10:45 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, 10.7 hours before the alert went out and 32 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: 516 J/kg
Mixed-layer CIN: -282 J/kg
Mixed-layer LCL: 799 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 7, 3:26 AM CDT, 2 hours 18 minutes earlier.

Area forecast discussion, May 7, 3:26 AM CDT, 2 hours 18 minutes before

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Hazardous weather outlook, May 6, 8:45 PM CDT, 8 hours 59 minutes before

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In the hours before

Special weather statement, May 7, 4:24 AM CDT, 1 hour 20 minutes before

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Special weather statement, May 7, 4:31 AM CDT, 1 hour 13 minutes before

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Local storm report, May 7, 5:18 AM CDT, 26 minutes before

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Local storm report, May 7, 5:25 AM CDT, 19 minutes before

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Special weather statement, May 7, 5:35 AM CDT, 9 minutes before

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Special weather statement, May 7, 5:35 AM CDT, 9 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 6, 11:48 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	42 min
May 7, 12:58 AM CDT	High Wind Warning	OUN	Greer, Harmon, Jackson, Kiowa	71 min
May 7, 2:58 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	47 min
May 7, 3:31 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	44 min
May 7, 3:52 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady	38 min
May 7, 4:12 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Grady, Stephens	21 min
May 7, 6:38 AM CDT	Severe Thunderstorm Warning	OUN	Johnston, Lincoln, Pottawatomie, Seminole	52 min
May 7, 6:41 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie, Seminole	23 min
May 7, 10:19 AM CDT	Areal Flood Advisory	OUN	Oklahoma	116 min
May 7, 12:13 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	22 hr
May 7, 2:24 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Stephens	51 min
May 7, 2:55 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	65 min
May 7, 3:32 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Oklahoma, Pottawatomie	43 min
May 7, 3:37 PM CDT	Areal Flood Advisory	OUN	Blaine, Caddo	3 hr
May 7, 3:37 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	38 min
May 7, 3:40 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	40 min
May 7, 4:03 PM CDT	Areal Flood Advisory	OUN	Canadian, Oklahoma	3 hr
May 7, 4:05 PM CDT	Severe Thunderstorm Warning	OUN	Stephens	40 min
May 7, 4:10 PM CDT	Severe Thunderstorm Warning	OUN	Love	65 min
May 7, 4:23 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	52 min
May 7, 4:33 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady	42 min
May 7, 4:55 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Oklahoma	50 min
May 7, 5:05 PM CDT	Tornado Warning	OUN	Oklahoma	25 min
May 7, 5:08 PM CDT	Flash Flood Warning	OUN	Canadian, Oklahoma	3 hr
May 7, 5:14 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Coal, Johnston, Love, Marshall, Murray and 1 more	61 min
May 7, 5:20 PM CDT	Tornado Warning	OUN	Oklahoma	36 min
May 7, 5:33 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Pottawatomie	42 min
May 7, 5:39 PM CDT	Areal Flood Advisory	OUN	Cleveland, Pottawatomie	2 hr
May 7, 5:39 PM CDT	Tornado Warning	OUN	Lincoln, Pottawatomie, Seminole	31 min
May 7, 5:45 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Coal, Johnston, Marshall	60 min
May 7, 6:07 PM CDT	Areal Flood Advisory	OUN	Logan	3 hr
May 7, 6:08 PM CDT	Severe Thunderstorm Warning	OUN	Hughes	52 min
May 7, 6:12 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	48 min
May 7, 6:16 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Johnston, Pontotoc	30 min
May 7, 6:36 PM CDT	Flash Flood Warning	OUN	Logan	3 hr
May 6, 9:46 PM CDT	Severe Thunderstorm Warning	OUN	Knox	34 min
May 6, 9:48 PM CDT	Severe Thunderstorm Warning	OUN	Foard	42 min
May 6, 11:44 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	46 min
May 7, 1:50 AM CDT	Areal Flood Advisory	OUN	Hardeman, Wilbarger	4 hr
May 7, 2:53 AM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	28 min
May 7, 2:32 PM CDT	Severe Thunderstorm Warning	OUN	Knox	58 min
May 7, 3:50 PM CDT	Severe Thunderstorm Warning	OUN	Clay	25 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2008 Every severe thunderstorm warning in 2008

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.