Alert archive / Mississippi / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 267

June 9, 201422 counties in Arkansas; 20 parishes in Louisiana; 24 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at Jun 9, 2014, 11:40 AM CDT for 22 counties in Arkansas; 20 parishes in Louisiana; 24 counties in Mississippi. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jun 9, 2014, 11:40 AM CDT (16:40 UTC)
Expired: Jun 9, 2014, 7:00 PM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 60 kt

All 66 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Grant County, AR, Jefferson County, AR, Lafayette County, AR, Lee County, AR, Lincoln County, AR, Lonoke County, AR, Monroe County, AR, Nevada County, AR, Ouachita County, AR, Phillips County, AR, Prairie County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Richland Parish, LA, Tensas Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Attala County, MS, Bolivar County, MS, Carroll County, MS, Claiborne County, MS, Coahoma County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Leflore County, MS, Madison County, MS, Montgomery County, MS, Panola County, MS, Quitman County, MS, Rankin County, MS, Sharkey County, MS, Sunflower County, MS, Tallahatchie County, MS, Tunica County, MS, Warren County, MS, Washington County, MS, Yalobusha County, MS, Yazoo County, MS

The radar

The Little Rock radar (KLZK), 162 km from the middle of the area, began a volume at 16:43 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: 5%
Ten or more severe wind reports: 40%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 20%
One or more hailstones of 2 inches or more: 5%
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
Jun 9, 11:55 AM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Cleveland, Dallas, Grant, Hot Spring, Ouachita	50 min
Jun 9, 12:57 PM CDT	Flash Flood Warning	LZK	Cleveland, Grant, Jefferson, Lincoln	3 hr
Jun 9, 1:47 PM CDT	Flash Flood Warning	LZK	Bradley, Desha, Drew	3 hr
Jun 9, 1:50 PM CDT	Severe Thunderstorm Warning	LZK	Monroe, Prairie, White, Woodruff	40 min
Jun 9, 1:52 PM CDT	Tornado Warning	LZK	Prairie, White, Woodruff	38 min
Jun 9, 2:03 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Lee, St. Francis	42 min
Jun 9, 2:28 PM CDT	Severe Thunderstorm Warning	LZK	Monroe, Woodruff	32 min
Jun 9, 2:38 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Ouachita, Union	52 min
Jun 9, 2:39 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Morehouse, Richland	51 min
Jun 9, 2:54 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, LaSalle	36 min
Jun 9, 3:08 PM CDT	Severe Thunderstorm Warning	JAN	Franklin	52 min
Jun 9, 3:17 PM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	43 min
Jun 9, 3:30 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Franklin, Madison, Richland	45 min
Jun 9, 3:39 PM CDT	Severe Thunderstorm Warning	JAN	Washington	51 min
Jun 9, 3:48 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Tensas	57 min
Jun 9, 3:54 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll	51 min
Jun 9, 4:17 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Hinds, Warren, Yazoo	58 min
Jun 9, 4:22 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Humphreys, Leflore, Sunflower	41 min
Jun 9, 4:30 PM CDT	Severe Thunderstorm Warning	MEG	Panola, Quitman, Tallahatchie, Yalobusha	45 min
Jun 9, 4:40 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Holmes, Leflore, Yazoo	65 min
Jun 9, 4:43 PM CDT	Severe Thunderstorm Warning	JAN	Tensas	62 min
Jun 9, 4:44 PM CDT	Severe Thunderstorm Warning	MEG	Panola	31 min
Jun 9, 4:49 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Holmes, Madison, Rankin, Yazoo	56 min
Jun 9, 4:52 PM CDT	Flash Flood Warning	MEG	Lafayette, Marshall, Panola, Tate	3 hr
Jun 9, 5:10 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison, Rankin, Scott	65 min
Jun 9, 5:17 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Carroll, Grenada, Holmes, Montgomery	58 min
Jun 9, 5:45 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake, Madison, Rankin, Scott	60 min
Jun 9, 5:49 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Choctaw, Montgomery, Winston	41 min
Jun 9, 6:18 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Choctaw, Clay, Montgomery, Oktibbeha, Webster and 1 more	57 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

Jackson, MS (KJAN), launched 12:00Z, 4.7 hours before the alert went out and 226 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: 1036 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 769 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 7:47 PM CDT	Mesoscale Discussion	SPC	Ashley, Bradley, Calhoun, Chicot, Clark, Cleveland and 15 more	88 min
Jun 8, 8:41 PM CDT	Severe Thunderstorm Watch	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 20 more	7 hr
Jun 8, 10:53 PM CDT	Mesoscale Discussion	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 19 more	97 min
Jun 9, 9:39 AM CDT	Mesoscale Discussion	SPC	Ashley, Bradley, Calhoun, Chicot, Clark, Cleveland and 11 more	2 hr
Jun 9, 1:54 PM CDT	Mesoscale Discussion	SPC	Arkansas, Ashley, Bradley, Chicot, Craighead, Crittenden and 14 more	96 min
Jun 9, 2:14 PM CDT	Tornado Watch	SPC	Clay, Craighead, Crittenden, Cross, Greene, Lee and 4 more	5 hr
Jun 9, 3:22 PM CDT	Mesoscale Discussion	SPC	Chicot	83 min
Jun 9, 3:43 PM CDT	Mesoscale Discussion	SPC	Crittenden, Mississippi	92 min
Jun 9, 12:07 PM CDT	Mesoscale Discussion	SPC	Allen, Beauregard, Calcasieu, Vernon	2 hr
Jun 8, 7:09 PM CDT	Mesoscale Discussion	SPC	Kemper, Lauderdale, Noxubee	2 hr
Jun 9, 2:07 AM CDT	Mesoscale Discussion	SPC	Alcorn, Benton, Calhoun, Chickasaw, Clay, Grenada and 24 more	83 min
Jun 9, 4:54 PM CDT	Mesoscale Discussion	SPC	Alcorn, Attala, Benton, Calhoun, Carroll, Chickasaw and 35 more	96 min
Jun 9, 5:16 PM CDT	Severe Thunderstorm Watch	SPC	Choctaw, Clarke, Clay, Covington, Jasper, Jefferson Davis and 15 more	8 hr
Jun 9, 5:19 PM CDT	Mesoscale Discussion	SPC	Alcorn, Benton, Calhoun, Chickasaw, Itawamba, Lafayette and 9 more	26 min
Jun 9, 5:30 PM CDT	Tornado Watch	SPC	Alcorn, Benton, Calhoun, Chickasaw, Itawamba, Lafayette and 9 more	8 hr
Jun 9, 6:55 PM CDT	Mesoscale Discussion	SPC	Alcorn, Chickasaw, Clay, Itawamba, Lee, Lowndes and 7 more	95 min

Nearby

Severe Thunderstorm Watches in Mississippi, 2014 Severe Thunderstorm Watches in Arkansas, 2014 Severe Thunderstorm Watches in Louisiana, 2014 Every severe thunderstorm watch in 2014

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.