Alert archive / Oklahoma / Tornado Watches in 2010

Tornado Watch 150

May 10, 20109 counties in Kansas; 5 counties in Missouri; 25 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at May 10, 2010, 5:00 PM CDT for 9 counties in Kansas; 5 counties in Missouri; 25 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 10, 2010, 5:00 PM CDT (22:00 UTC)
Expired: May 10, 2010, 10:42 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center
Particularly dangerous situation: Yes
Largest hail expected: 4 in
Strongest gust expected: 70 kt

All 39 counties

Allen County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Barton County, MO, Jasper County, MO, McDonald County, MO, Newton County, MO, Vernon County, MO, Adair County, OK, Atoka County, OK, Bryan County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Craig County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Marshall County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Ottawa County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Rogers County, OK, Sequoyah County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 33 km from the middle of the area, began a volume at 22:04 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: 80%
One or more EF2 to EF5 tornadoes: 50%
Ten or more severe wind reports: 80%
One or more gusts of 65 knots or more: 60%
Ten or more severe hail reports: 90%
One or more hailstones of 2 inches or more: 80%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 10, 5:59 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, McClain, Pontotoc, Pottawatomie, Seminole	46 min
May 10, 6:04 PM CDT	Tornado Warning	OUN	Carter, Johnston, Murray	41 min
May 10, 6:08 PM CDT	Tornado Warning	OUN	Hughes, Lincoln, Pottawatomie, Seminole	67 min
May 10, 6:35 PM CDT	Tornado Warning	OUN	Carter, Johnston, Marshall, Murray	40 min
May 10, 6:37 PM CDT	Tornado Warning	OUN	Cleveland, McClain, Pontotoc, Pottawatomie, Seminole	53 min
May 10, 6:38 PM CDT	Severe Thunderstorm Warning	ICT	Wilson, Woodson	62 min
May 10, 6:39 PM CDT	Tornado Warning	OUN	Carter, Love, Marshall	51 min
May 10, 6:53 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Osage, Rogers, Tulsa, Wagoner	37 min
May 10, 6:53 PM CDT	Tornado Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee, Pittsburg	52 min
May 10, 6:57 PM CDT	Severe Thunderstorm Warning	ICT	Montgomery	49 min
May 10, 7:00 PM CDT	Tornado Warning	OUN	Atoka, Bryan, Johnston, Marshall	50 min
May 10, 7:06 PM CDT	Tornado Warning	OUN	Bryan, Marshall	54 min
May 10, 7:13 PM CDT	Tornado Warning	OUN	Garvin, McClain, Murray, Pontotoc	62 min
May 10, 7:16 PM CDT	Severe Thunderstorm Warning	ICT	Allen, Labette, Neosho	59 min
May 10, 7:19 PM CDT	Severe Thunderstorm Warning	SGF	Bourbon	41 min
May 10, 7:25 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, McClain, Pontotoc, Pottawatomie, Seminole	50 min
May 10, 7:26 PM CDT	Tornado Warning	OUN	Carter, Garvin, Johnston, Murray, Pontotoc	49 min
May 10, 7:36 PM CDT	Tornado Warning	TSA	McIntosh, Muskogee, Okmulgee	39 min
May 10, 7:40 PM CDT	Severe Thunderstorm Warning	SGF	Crawford	35 min
May 10, 7:41 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	64 min
May 10, 7:45 PM CDT	Tornado Warning	OUN	Hughes, Pontotoc, Seminole	45 min
May 10, 7:51 PM CDT	Severe Thunderstorm Warning	SGF	Bourbon	54 min
May 10, 7:53 PM CDT	Tornado Warning	OUN	Bryan	67 min
May 10, 7:54 PM CDT	Tornado Warning	TSA	Adair, Cherokee, McIntosh, Muskogee, Sequoyah	51 min
May 10, 8:00 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw	60 min
May 10, 8:04 PM CDT	Tornado Warning	OUN	Atoka, Bryan, Carter, Coal, Johnston, Marshall and 1 more	56 min
May 10, 8:05 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Johnston, Love, Marshall	55 min
May 10, 8:09 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Hughes, Johnston, Pontotoc	66 min
May 10, 8:10 PM CDT	Severe Thunderstorm Warning	SGF	Crawford	65 min
May 10, 8:17 PM CDT	Tornado Warning	OUN	Carter, Johnston, Love, Marshall	43 min
May 10, 8:32 PM CDT	Flash Flood Warning	SGF	Bourbon	3 hr
May 10, 8:33 PM CDT	Tornado Warning	TSA	Adair, Sequoyah	42 min
May 10, 8:38 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Pittsburg	52 min
May 10, 8:40 PM CDT	Tornado Warning	TSA	Latimer, Pittsburg	35 min
May 10, 8:54 PM CDT	Tornado Warning	OUN	Atoka, Bryan	51 min
May 10, 9:00 PM CDT	Severe Thunderstorm Warning	OUN	Bryan, Love, Marshall	60 min
May 10, 9:09 PM CDT	Tornado Warning	TSA	Latimer, LeFlore, Pittsburg	51 min
May 10, 9:10 PM CDT	Tornado Warning	TSA	Choctaw, Pushmataha	50 min
May 10, 9:18 PM CDT	Flash Flood Warning	SGF	Jasper	57 min
May 10, 9:31 PM CDT	Tornado Warning	SGF	Dade, Jasper, Lawrence	44 min
May 10, 9:34 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore	56 min
May 10, 9:43 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	32 min
May 10, 9:59 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	48 min
May 10, 10:03 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	27 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

Lamont, OK (KLMN), launched 12:00Z, 10.0 hours before the alert went out and 182 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: 5 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 456 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 677 m²/s²
0-3 km storm-relative helicity: 749 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 10, 2:32 AM CDT	Mesoscale Discussion	SPC	Norton, Phillips	88 min
May 10, 10:37 AM CDT	Mesoscale Discussion	SPC	Clark, Comanche, Edwards, Finney, Ford, Gove and 19 more	113 min
May 10, 12:36 PM CDT	Tornado Watch	SPC	Barber, Clark, Comanche, Edwards, Ellis, Finney and 22 more	6 hr
May 10, 12:46 PM CDT	Mesoscale Discussion	SPC	Barber, Harper, Sumner	119 min
May 10, 1:25 PM CDT	Tornado Watch PDS	SPC	Butler, Chautauqua, Cowley, Elk, Greenwood, Harper and 5 more	9 hr
May 10, 2:53 PM CDT	Mesoscale Discussion	SPC	Barber, Chautauqua, Cowley, Harper, Kingman, Pratt and 4 more	97 min
May 10, 3:14 PM CDT	Mesoscale Discussion	SPC	Anderson, Atchison, Barton, Brown, Chase, Clay and 35 more	2 hr
May 10, 3:26 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Barton, Chase, Clay, Cloud, Coffey and 27 more	6 hr
May 10, 4:42 PM CDT	Mesoscale Discussion	SPC	Allen, Butler, Chase, Chautauqua, Cherokee, Coffey and 19 more	63 min
May 10, 6:45 PM CDT	Mesoscale Discussion	SPC	Chautauqua, Cherokee, Crawford, Labette, Montgomery	60 min
May 10, 3:40 PM CDT	Mesoscale Discussion	SPC	Blaine, Caddo, Canadian, Comanche, Cotton, Garfield and 7 more	2 hr

Nearby

Tornado Watches in Oklahoma, 2010 Tornado Watches in Kansas, 2010 Tornado Watches in Missouri, 2010 Every tornado watch in 2010

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.