Alert archive / Oklahoma / Severe Thunderstorm Watches in 2008

Severe Thunderstorm Watch 83

March 2, 200812 counties in Kansas; 17 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at Mar 2, 2008, 1:57 PM CST for 12 counties in Kansas; 17 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Mar 2, 2008, 1:57 PM CST (19:57 UTC)
Expired: Mar 2, 2008, 8:00 PM CST
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 29 counties

Barber County, KS, Butler County, KS, Chase County, KS, Comanche County, KS, Cowley County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Marion County, KS, Reno County, KS, Sedgwick County, KS, Sumner County, KS, Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Harper County, OK, Kay County, OK, Kingfisher County, OK, Major County, OK, Noble County, OK, Roger Mills County, OK, Washita County, OK, Woods County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 55 km from the middle of the area, began a volume at 19:57 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 10%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 30%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 50%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 70%

Warnings issued inside it

29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Mar 2, 2:11 PM CST	Severe Thunderstorm Warning	OUN	Harper	49 min
Mar 2, 2:29 PM CST	Severe Thunderstorm Warning	OUN	Harper	46 min
Mar 2, 2:34 PM CST	Tornado Warning	OUN	Harper	41 min
Mar 2, 2:53 PM CST	Severe Thunderstorm Warning	OUN	Woods	52 min
Mar 2, 3:38 PM CST	Severe Thunderstorm Warning	OUN	Woods	52 min
Mar 2, 3:48 PM CST	Severe Thunderstorm Warning	OUN	Dewey	42 min
Mar 2, 3:50 PM CST	Severe Thunderstorm Warning	DDC	Barber	23 min
Mar 2, 4:00 PM CST	Severe Thunderstorm Warning	OUN	Alfalfa	45 min
Mar 2, 4:04 PM CST	Severe Thunderstorm Warning	OUN	Custer, Dewey	26 min
Mar 2, 4:08 PM CST	Severe Thunderstorm Warning	OUN	Washita	52 min
Mar 2, 4:12 PM CST	Severe Thunderstorm Warning	DDC	Barber	18 min
Mar 2, 4:16 PM CST	Severe Thunderstorm Warning	ICT	Harper	44 min
Mar 2, 4:27 PM CST	Severe Thunderstorm Warning	OUN	Woods	33 min
Mar 2, 4:32 PM CST	Severe Thunderstorm Warning	OUN	Blaine, Dewey, Major	43 min
Mar 2, 4:39 PM CST	Tornado Warning	OUN	Blaine, Dewey	36 min
Mar 2, 4:45 PM CST	Tornado Warning	OUN	Kiowa, Washita	30 min
Mar 2, 4:47 PM CST	Severe Thunderstorm Warning	OUN	Blaine, Custer	43 min
Mar 2, 4:52 PM CST	Tornado Warning	OUN	Caddo, Washita	23 min
Mar 2, 4:56 PM CST	Severe Thunderstorm Warning	ICT	Harper, Sumner	49 min
Mar 2, 5:13 PM CST	Severe Thunderstorm Warning	OUN	Caddo, Washita	47 min
Mar 2, 5:14 PM CST	Tornado Warning	OUN	Blaine	25 min
Mar 2, 5:29 PM CST	Severe Thunderstorm Warning	OUN	Major	31 min
Mar 2, 5:36 PM CST	Severe Thunderstorm Warning	ICT	Butler, Cowley, Sedgwick, Sumner	39 min
Mar 2, 5:50 PM CST	Severe Thunderstorm Warning	OUN	Garfield, Major	40 min
Mar 2, 6:10 PM CST	Severe Thunderstorm Warning	ICT	Butler, Cowley	38 min
Mar 2, 6:15 PM CST	Severe Thunderstorm Warning	OUN	Kay	45 min
Mar 2, 6:38 PM CST	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble, Payne	52 min
Mar 2, 6:58 PM CST	Severe Thunderstorm Warning	OUN	Kay	47 min
Mar 2, 7:27 PM CST	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble, Payne	48 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 8.0 hours before the alert went out and 149 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: 20 J/kg
Mixed-layer CIN: -504 J/kg
Mixed-layer LCL: 2061 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 2, 11:03 AM CST	Mesoscale Discussion	SPC	Barber, Butler, Chase, Clark, Comanche, Dickinson and 11 more	2 hr
Mar 2, 1:36 PM CST	Mesoscale Discussion	SPC	Cheyenne, Decatur, Greeley, Hamilton, Logan, Rawlins and 5 more	5 hr
Mar 2, 2:31 PM CST	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 6 more	104 min
Mar 2, 1:17 PM CST	Mesoscale Discussion	SPC	Beckham, Custer, Dewey, Ellis, Greer, Harmon and 6 more	2 hr
Mar 2, 3:07 PM CST	Tornado Watch	SPC	Beckham, Blaine, Caddo, Canadian, Comanche, Cotton and 16 more	9 hr
Mar 2, 5:26 PM CST	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Cleveland, Coal, Garvin and 15 more	64 min

Nearby

Severe Thunderstorm Watches in Oklahoma, 2008 Severe Thunderstorm Watches in Kansas, 2008 Every severe thunderstorm watch 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.