Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 285, NWS Norman, OK

April 10, 2008Harper County, Woods County, Woodward County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 10, 2008, 2:58 PM CDT for Harper County, Woods County, Woodward County, Oklahoma. It was in force for 32 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 10, 2008, 2:58 PM CDT (19:58 UTC)
Expired: Apr 10, 2008, 3:30 PM CDT
In force: 32 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Harper County, OK, Woods County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 102 km from the middle of the area, began a volume at 19:58 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

Dodge City, (KDDC), launched 12:00Z, 8.0 hours before the alert went out and 136 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: 561 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 239 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 Apr 10, 11:00 AM CDT, 3 hours 58 minutes earlier.

Area forecast discussion, Apr 10, 11:00 AM CDT, 3 hours 58 minutes before

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Hazardous weather outlook, Apr 10, 11:00 AM CDT, 3 hours 58 minutes before

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In the hours before

Special weather statement, Apr 10, 2:32 PM CDT, 26 minutes before

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Special weather statement, Apr 10, 2:48 PM CDT, 10 minutes before

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Special weather statement, Apr 10, 2:51 PM CDT, 7 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 9, 7:46 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Johnston	44 min
Apr 9, 8:13 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	33 hr
Apr 9, 8:34 PM CDT	Severe Thunderstorm Warning	OUN	Cotton	31 min
Apr 9, 8:50 PM CDT	River Flood Warning	OUN	Blaine, Caddo, Canadian, Custer	25 hr
Apr 9, 9:14 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	46 min
Apr 9, 9:15 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon	45 min
Apr 9, 9:17 PM CDT	Severe Thunderstorm Warning	OUN	Atoka	43 min
Apr 9, 9:52 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Kiowa, Washita	38 min
Apr 9, 9:54 PM CDT	River Flood Warning	OUN	Oklahoma	59 hr
Apr 9, 9:55 PM CDT	Severe Thunderstorm Warning	OUN	Canadian	40 min
Apr 9, 9:58 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer	32 min
Apr 9, 10:14 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	46 min
Apr 9, 10:58 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal	47 min
Apr 9, 11:02 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Kiowa, Tillman	43 min
Apr 9, 11:11 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	49 min
Apr 9, 11:11 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal	34 min
Apr 10, 12:00 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	45 min
Apr 10, 12:03 AM CDT	Severe Thunderstorm Warning	OUN	Tillman	27 min
Apr 10, 12:37 AM CDT	Flash Flood Warning	OUN	Caddo, Canadian, Cleveland, Comanche, Cotton, Grady and 7 more	6 hr
Apr 10, 12:50 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	40 min
Apr 10, 1:47 AM CDT	Flash Flood Warning	OUN	Lincoln, Payne	6 hr
Apr 10, 2:00 AM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Stephens	45 min
Apr 10, 2:08 AM CDT	Tornado Warning	OUN	Jefferson	37 min
Apr 10, 2:20 AM CDT	River Flood Warning	OUN	Logan	31 hr
Apr 10, 2:44 AM CDT	Flash Flood Warning	OUN	Garvin, Jefferson, Stephens	6 hr
Apr 10, 2:48 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Love, Marshall, Murray, Pontotoc	42 min
Apr 10, 2:50 AM CDT	Flash Flood Warning	OUN	Pottawatomie, Seminole	6 hr
Apr 10, 3:19 AM CDT	River Flood Warning	OUN	Logan	35 hr
Apr 10, 3:19 AM CDT	Wind Advisory	OUN	Alfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 39 more	18 hr
Apr 10, 3:22 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Hughes, Johnston, Pontotoc	38 min
Apr 10, 3:32 AM CDT	River Flood Warning	OUN	Lincoln, Oklahoma, Pottawatomie	42 hr
Apr 10, 3:55 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan	50 min
Apr 10, 4:13 AM CDT	River Flood Warning	OUN	Canadian, Oklahoma	7 hr
Apr 10, 6:35 AM CDT	River Flood Warning	OUN	Grady	8 hr
Apr 10, 8:34 AM CDT	River Flood Warning	OUN	Atoka, Bryan	59 hr
Apr 10, 8:51 AM CDT	River Flood Warning	OUN	Comanche, Cotton	4 days
Apr 10, 8:57 AM CDT	River Flood Warning	OUN	Caddo, Kiowa, Washita	20 hr
Apr 10, 8:57 AM CDT	River Flood Warning	OUN	Caddo, Garvin, Grady	53 hr
Apr 10, 8:57 AM CDT	River Flood Warning	OUN	Grady	7 hr
Apr 10, 8:57 AM CDT	River Flood Warning	OUN	Garvin	24 hr
Apr 10, 9:42 AM CDT	River Flood Warning	OUN	Logan, Payne	35 hr
Apr 10, 9:55 AM CDT	River Flood Warning	OUN	Kingfisher	5 hr
Apr 10, 2:58 PM CDT	Red Flag Warning	OUN	Beckham, Comanche, Cotton, Custer, Greer, Harmon and 5 more	5 hr
Apr 9, 8:29 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay	46 min
Apr 9, 8:53 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Knox	52 min
Apr 9, 9:36 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Foard, Knox, Wilbarger	39 min
Apr 9, 9:39 PM CDT	Severe Thunderstorm Warning	OUN	Knox	51 min
Apr 9, 10:24 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Knox	36 min
Apr 9, 10:48 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Wilbarger	27 min
Apr 9, 11:38 PM CDT	Severe Thunderstorm Warning	OUN	Wilbarger	37 min
Apr 10, 12:40 AM CDT	Severe Thunderstorm Warning	OUN	Archer, Baylor, Wichita, Wilbarger	50 min
Apr 10, 12:59 AM CDT	Severe Thunderstorm Warning	OUN	Baylor, Knox	32 min
Apr 10, 1:25 AM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay, Wichita	50 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.