Alert archive / Arkansas / Tornado Watches in 2008

Tornado Watch 299

May 10, 200856 counties in Arkansas; 8 counties in Mississippi; 23 counties in Missouri

The Storm Prediction Center issued this tornado watch at May 10, 2008, 6:51 PM CDT for 56 counties in Arkansas; 8 counties in Mississippi; 23 counties in Missouri. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 10, 2008, 6:51 PM CDT (23:51 UTC)
Expired: May 11, 2008, 1:57 AM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Particularly dangerous situation: Yes
Largest hail expected: 3 in
Strongest gust expected: 60 kt

All 87 counties

Arkansas County, AR, Ashley County, AR, Baxter County, AR, Boone County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lafayette County, AR, Lincoln County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Marion County, AR, Miller County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Union County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Barry County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Laclede County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO, Bolivar County, MS, Carroll County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Leflore County, MS, Sunflower County, MS, Washington County, MS

The radar

The Springfield radar (KSGF), 141 km from the middle of the area, began a volume at 23:55 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: 95%
One or more EF2 to EF5 tornadoes: 80%
Ten or more severe wind reports: 50%
One or more gusts of 65 knots or more: 50%
Ten or more severe hail reports: 95%
One or more hailstones of 2 inches or more: 50%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 10, 6:51 PM CDT	Tornado Warning	LZK	Lonoke, Pulaski, Saline	39 min
May 10, 6:52 PM CDT	Severe Thunderstorm Warning	LZK	Monroe, Woodruff	23 min
May 10, 7:02 PM CDT	Tornado Warning	LZK	Monroe	13 min
May 10, 7:08 PM CDT	Tornado Warning	SGF	Taney	52 min
May 10, 7:10 PM CDT	Severe Thunderstorm Warning	SGF	Barry	16 min
May 10, 7:14 PM CDT	Tornado Warning	LZK	White, Woodruff	46 min
May 10, 7:19 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Webster	41 min
May 10, 7:30 PM CDT	Tornado Warning	LZK	Arkansas, Jefferson, Lonoke, Prairie, Pulaski	45 min
May 10, 7:33 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie	42 min
May 10, 7:40 PM CDT	Tornado Warning	LZK	Boone	50 min
May 10, 7:44 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Texas, Wright	50 min
May 10, 7:46 PM CDT	Tornado Warning	SHV	Little River, Sevier	59 min
May 10, 7:47 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Newton, Pope	43 min
May 10, 7:52 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Monroe, Prairie	38 min
May 10, 7:58 PM CDT	Tornado Warning	LZK	Johnson, Logan, Pope	47 min
May 10, 7:59 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	46 min
May 10, 8:00 PM CDT	Tornado Warning	LZK	Woodruff	15 min
May 10, 8:05 PM CDT	Tornado Warning	LZK	Baxter, Marion	22 min
May 10, 8:11 PM CDT	Tornado Warning	LZK	Arkansas, Monroe	34 min
May 10, 8:22 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Izard, Marion, Searcy, Stone	38 min
May 10, 8:32 PM CDT	Severe Thunderstorm Warning	SGF	Howell	24 min
May 10, 8:37 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Nevada	53 min
May 10, 8:44 PM CDT	Tornado Warning	LZK	Conway, Pope, Van Buren	21 min
May 10, 8:46 PM CDT	Tornado Warning	SHV	Hempstead, Howard, Little River, Miller, Sevier	44 min
May 10, 8:50 PM CDT	Severe Thunderstorm Warning	SHV	Howard, Little River, Sevier	40 min
May 10, 8:56 PM CDT	Tornado Warning	SHV	Hempstead, Nevada	49 min
May 10, 9:25 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Ouachita	65 min
May 10, 9:25 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Little River, Miller, Sevier	46 min
May 10, 9:30 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Lafayette, Nevada	60 min
May 10, 9:51 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	43 min
May 10, 9:52 PM CDT	Tornado Warning	LZK	Ouachita	23 min
May 10, 9:52 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Lafayette, Miller, Union	53 min
May 10, 9:55 PM CDT	Tornado Warning	SHV	Columbia, Hempstead, Lafayette, Nevada	35 min
May 10, 10:00 PM CDT	Severe Thunderstorm Warning	SHV	Union	60 min
May 10, 10:30 PM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun	30 min
May 10, 10:57 PM CDT	Severe Thunderstorm Warning	SHV	Union	63 min
May 10, 11:09 PM CDT	Tornado Warning	JAN	Grenada	26 min
May 10, 11:23 PM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	42 min
May 11, 12:04 AM CDT	Severe Thunderstorm Warning	JAN	Grenada	26 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, 11.9 hours before the alert went out and 124 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: 1161 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 153 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
May 10, 4:05 AM CDT	Mesoscale Discussion	SPC	Baxter, Boone, Carroll, Clay, Cleburne, Craighead and 21 more	115 min
May 10, 7:36 AM CDT	Mesoscale Discussion	SPC	Benton, Carroll, Crawford, Franklin, Hempstead, Howard and 12 more	2 hr
May 10, 9:40 AM CDT	Mesoscale Discussion	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 37 more	65 min
May 10, 10:11 AM CDT	Tornado Watch	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 29 more	5 hr
May 10, 10:55 AM CDT	Mesoscale Discussion	SPC	Benton, Boone, Carroll, Crawford, Franklin, Johnson and 7 more	2 hr
May 10, 11:29 AM CDT	Tornado Watch	SPC	Baxter, Benton, Boone, Carroll, Conway, Crawford and 15 more	9 hr
May 10, 12:34 PM CDT	Mesoscale Discussion	SPC	Clay, Craighead, Fulton, Greene, Independence, Lawrence and 4 more	116 min
May 10, 2:23 PM CDT	Mesoscale Discussion	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 25 more	97 min
May 10, 3:36 PM CDT	Tornado Watch PDS	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 36 more	4 hr
May 10, 4:27 PM CDT	Tornado Watch	SPC	Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more	10 hr
May 10, 5:13 PM CDT	Mesoscale Discussion	SPC	Baxter, Benton, Boone, Carroll, Crawford, Franklin and 9 more	2 hr
May 10, 6:22 PM CDT	Mesoscale Discussion	SPC	Arkansas, Bradley, Calhoun, Chicot, Clark, Cleveland and 28 more	83 min
May 9, 11:08 PM CDT	Mesoscale Discussion	SPC	Alcorn, Calhoun, Chickasaw, Choctaw, Clay, Itawamba and 13 more	2 hr
May 10, 2:28 PM CDT	Mesoscale Discussion	SPC	Choctaw, Clay, Lowndes, Monroe, Noxubee, Oktibbeha and 2 more	2 hr

Nearby

Tornado Watches in Arkansas, 2008 Tornado Watches in Missouri, 2008 Tornado Watches in Mississippi, 2008 Every tornado 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.