Alert archive / Oklahoma / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 376

June 10, 200723 counties in Arkansas; 5 counties in Missouri; 41 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at Jun 10, 2007, 1:37 PM CDT for 23 counties in Arkansas; 5 counties in Missouri; 41 counties in Oklahoma. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued: Jun 10, 2007, 1:37 PM CDT (18:37 UTC)
Expired: Jun 10, 2007, 10:53 PM CDT
In force: 9 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2.5 in
Strongest gust expected: 60 kt

All 69 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Conway County, AR, Crawford County, AR, Franklin County, AR, Garland County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Polk County, AR, Pope County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Barry County, MO, McDonald County, MO, Ozark County, MO, Stone County, MO, Taney County, MO, Adair County, OK, Caddo County, OK, Canadian County, OK, Cherokee County, OK, Cleveland County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garvin County, OK, Grady County, OK, Haskell County, OK, Hughes County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, Logan County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Noble County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Stephens County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Western Arkansas radar (KSRX), 65 km from the middle of the area, began a volume at 18:37 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: 20%
One or more EF2 to EF5 tornadoes: 5%
Ten or more severe wind reports: 30%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 50%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jun 10, 1:42 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Polk, Scott	48 min
Jun 10, 1:49 PM CDT	Flash Flood Warning	LZK	Boone	116 min
Jun 10, 2:04 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Sebastian	56 min
Jun 10, 2:05 PM CDT	Severe Thunderstorm Warning	LZK	Newton, Searcy	40 min
Jun 10, 2:36 PM CDT	Flash Flood Warning	TSA	Carroll	114 min
Jun 10, 2:39 PM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	36 min
Jun 10, 2:44 PM CDT	Severe Thunderstorm Warning	LZK	Newton, Searcy	31 min
Jun 10, 2:57 PM CDT	Severe Thunderstorm Warning	LZK	Perry, Pulaski	33 min
Jun 10, 3:07 PM CDT	Flash Flood Warning	LZK	Newton	113 min
Jun 10, 3:13 PM CDT	Severe Thunderstorm Warning	OUN	Logan, Oklahoma	47 min
Jun 10, 3:15 PM CDT	Severe Thunderstorm Warning	LZK	Searcy	45 min
Jun 10, 3:44 PM CDT	Severe Thunderstorm Warning	LZK	Pope	46 min
Jun 10, 3:48 PM CDT	Flash Flood Warning	LZK	Searcy	117 min
Jun 10, 3:52 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery	38 min
Jun 10, 4:03 PM CDT	Severe Thunderstorm Warning	TSA	Madison	31 min
Jun 10, 4:22 PM CDT	Severe Thunderstorm Warning	OUN	Logan	38 min
Jun 10, 4:23 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Garland, Hot Spring, Pike	52 min
Jun 10, 4:40 PM CDT	Severe Thunderstorm Warning	LZK	Van Buren	50 min
Jun 10, 6:09 PM CDT	Severe Thunderstorm Warning	OUN	Grady	51 min
Jun 10, 6:27 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain	48 min
Jun 10, 6:38 PM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	52 min
Jun 10, 7:14 PM CDT	Severe Thunderstorm Warning	TSA	Craig	36 min
Jun 10, 7:47 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	43 min
Jun 10, 7:56 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	27 min
Jun 10, 8:21 PM CDT	Severe Thunderstorm Warning	TSA	Creek	54 min
Jun 10, 8:24 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Payne	32 min
Jun 10, 9:11 PM CDT	Severe Thunderstorm Warning	TSA	Osage	64 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

Springfield, MO (KSGF), launched 12:00Z, 6.6 hours before the alert went out and 143 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: 1180 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1117 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 25 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 12:33 PM CDT	Mesoscale Discussion	SPC	Baxter, Boone, Carroll, Clay, Cleburne, Crawford and 17 more	57 min
Jun 10, 3:35 PM CDT	Mesoscale Discussion	SPC	Baxter, Benton, Boone, Carroll, Conway, Crawford and 17 more	55 min
Jun 10, 6:43 PM CDT	Mesoscale Discussion	SPC	Benton, Boone, Carroll, Crawford, Franklin, Johnson and 9 more	92 min
Jun 9, 11:11 PM CDT	Mesoscale Discussion	SPC	Barton, Bates, Benton, Buchanan, Cass, Cedar and 17 more	3 hr
Jun 10, 4:16 PM CDT	Mesoscale Discussion	SPC	Barton, Bates, Benton, Camden, Cedar, Christian and 16 more	89 min
Jun 10, 4:33 PM CDT	Tornado Watch	SPC	Barry, Barton, Benton, Cedar, Christian, Dade and 11 more	7 hr
Jun 9, 7:20 PM CDT	Severe Thunderstorm Watch	SPC	Beaver, Cimarron, Texas	5 hr
Jun 9, 9:50 PM CDT	Mesoscale Discussion	SPC	Beaver, Texas	85 min
Jun 10, 11:28 AM CDT	Mesoscale Discussion	SPC	Atoka, Carter, Choctaw, Cleveland, Coal, Comanche and 21 more	92 min

Nearby

Severe Thunderstorm Watches in Oklahoma, 2007 Severe Thunderstorm Watches in Arkansas, 2007 Severe Thunderstorm Watches in Missouri, 2007 Every severe thunderstorm watch in 2007

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.