Alert archive / Oklahoma / Severe Thunderstorm Watches in 2022

Severe Thunderstorm Watch 331

June 8, 202221 counties in Oklahoma; 19 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 8, 2022, 7:29 AM CDT for 21 counties in Oklahoma; 19 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Jun 8, 2022, 7:29 AM CDT (12:29 UTC)
Expired: Jun 8, 2022, 12:30 PM CDT
In force: 5 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 70 kt

All 40 counties

Atoka County, OK, Bryan County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Cotton County, OK, Garvin County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Lincoln County, OK, Love County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Oklahoma County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Briscoe County, TX, Childress County, TX, Clay County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Floyd County, TX, Foard County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, King County, TX, Knox County, TX, Motley County, TX, Swisher County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 48 km from the middle of the area, began a volume at 12:32 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: 5%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 50%
One or more gusts of 65 knots or more: 50%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 70%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jun 8, 7:53 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LUB	Childress, Cottle, Hall, Motley	52 min
Jun 8, 7:58 AM CDT	Severe Thunderstorm Warning	LUB	Floyd, Hale, Lamb, Motley	47 min
Jun 8, 8:08 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Caddo, Comanche, Greer, Harmon, Jackson and 3 more	67 min
Jun 8, 8:15 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LUB	Briscoe, Hall, Swisher	30 min
Jun 8, 8:30 AM CDT	Flash Flood Warning	OUN	Caddo, Canadian, Cleveland, Grady, McClain	3 hr
Jun 8, 8:31 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Grady, McClain, Oklahoma	44 min
Jun 8, 8:39 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Cotton, Greer, Harmon, Jackson and 3 more	66 min
Jun 8, 8:42 AM CDT	Severe Thunderstorm Warning	LUB	Cottle, Crosby, Dickens, Floyd, King, Motley	48 min
Jun 8, 8:44 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LUB	Briscoe, Childress, Cottle, Floyd, Hall, Motley	46 min
Jun 8, 8:50 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, McClain	40 min
Jun 8, 8:58 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Caddo, Cleveland, Comanche, Garvin, Grady, McClain and 1 more	47 min
Jun 8, 9:00 AM CDT	Flash Flood Warning Considerable damage threat	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	3 hr
Jun 8, 9:09 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jefferson, Stephens, Tillman	66 min
Jun 8, 9:19 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, Murray, Stephens	41 min
Jun 8, 9:28 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LUB	Crosby, Dickens, King	32 min
Jun 8, 9:44 AM CDT	Flash Flood Warning	OUN	Garvin, Grady, McClain, Stephens	3 hr
Jun 8, 9:58 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Jefferson, Johnston, Love, Marshall and 3 more	62 min
Jun 8, 10:01 AM CDT	Flash Flood Warning	OUN	Cleveland, Garvin, McClain, Pontotoc, Pottawatomie	3 hr
Jun 8, 10:04 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	Archer, Baylor, Clay, Wichita	42 min
Jun 8, 10:06 AM CDT	Severe Thunderstorm Warning	OUN	Hughes, McClain, Pontotoc, Pottawatomie, Seminole	39 min
Jun 8, 10:21 AM CDT	Flash Flood Warning	OUN	Coal, Hughes, Pontotoc, Pottawatomie, Seminole	3 hr
Jun 8, 10:37 AM CDT	Flash Flood Warning	OUN	Hughes, Pontotoc, Pottawatomie, Seminole	3 hr
Jun 8, 10:40 AM CDT	Severe Thunderstorm Warning	OUN	Bryan, Carter, Johnston, Love, Marshall	65 min
Jun 8, 10:56 AM CDT	Severe Thunderstorm Warning	OUN	Hughes	34 min
Jun 8, 10:58 AM CDT	Flash Flood Warning	OUN	Atoka, Bryan, Coal, Hughes, Johnston	3 hr

Discussions around it

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

Mesoscale Discussion 1088 Severe thunderstorm watch 331Jun 8, 10:36 AM CDT

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 0.5 hours before the alert went out and 206 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: 2648 J/kg
Mixed-layer CIN: -206 J/kg
Mixed-layer LCL: 1008 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 7, 9:56 PM CDT	Severe Thunderstorm Watch	SPC	Beaver, Texas	7 hr
Jun 7, 11:29 PM CDT	Mesoscale Discussion	SPC	Beaver, Dewey, Ellis, Roger Mills, Texas	2 hr
Jun 8, 1:10 AM CDT	Severe Thunderstorm Watch	SPC	Beckham, Blaine, Caddo, Custer, Dewey, Ellis and 7 more	3 hr
Jun 8, 2:52 AM CDT	Mesoscale Discussion	SPC	Beaver, Texas	113 min
Jun 8, 4:39 AM CDT	Severe Thunderstorm Watch	SPC	Beckham, Blaine, Caddo, Canadian, Comanche, Custer and 9 more	6 hr
Jun 8, 7:04 AM CDT	Mesoscale Discussion	SPC	Beckham, Custer, Greer, Roger Mills, Washita	116 min
Jun 8, 10:36 AM CDT	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Choctaw, Coal, Hughes and 11 more	84 min
Jun 8, 11:06 AM CDT	Severe Thunderstorm Watch	SPC	Adair, Cherokee, Choctaw, Delaware, Haskell, Latimer and 5 more	6 hr

Nearby

Severe Thunderstorm Watches in Oklahoma, 2022 Severe Thunderstorm Watches in Texas, 2022 Every severe thunderstorm watch in 2022

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.