Alert archive / Mississippi / Tornado Watches in 2016

Tornado Watch 9

February 2, 20166 states

The Storm Prediction Center issued this tornado watch at Feb 2, 2016, 12:22 PM CST for 6 states. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
Feb 2, 2016, 12:22 PM CST (18:22 UTC)
Expired
Feb 2, 2016, 9:00 PM CST
In force
9 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 120 counties

Chicot County, AR, Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, Poinsett County, AR, St. Francis County, AR, Alexander County, IL, Gallatin County, IL, Hardin County, IL, Jackson County, IL, Johnson County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Williamson County, IL, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Perry County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO, Alcorn County, MS, Attala County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Coahoma County, MS, DeSoto County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Marshall County, MS, Monroe County, MS, Montgomery County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Stewart County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 92 km from the middle of the area, began a volume at 18:24 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
50%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
10%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Feb 2, 1:08 PM CSTSevere Thunderstorm WarningJANAttala, Leake67 min
Feb 2, 1:50 PM CSTSevere Thunderstorm WarningMEGChester, Henderson, Madison25 min
Feb 2, 1:53 PM CSTSevere Thunderstorm WarningJANChoctaw, Winston37 min
Feb 2, 2:01 PM CSTTornado WarningMEGChester, Henderson, Madison29 min
Feb 2, 2:04 PM CSTTornado WarningJANChoctaw, Oktibbeha56 min
Feb 2, 2:26 PM CSTSevere Thunderstorm WarningMEGBenton, Carroll, Decatur, Henderson34 min
Feb 2, 2:38 PM CSTTornado WarningJANClay38 min
Feb 2, 2:57 PM CSTTornado WarningOHXHouston, Humphreys33 min
Feb 2, 3:21 PM CSTTornado WarningJANNoxubee, Winston54 min
Feb 2, 3:28 PM CSTTornado WarningOHXDickson, Houston, Montgomery32 min
Feb 2, 3:29 PM CSTFlash Flood WarningMEGShelby2 hr
Feb 2, 3:35 PM CSTTornado WarningPAHHopkins, McLean, Muhlenberg40 min
Feb 2, 3:46 PM CSTSevere Thunderstorm WarningPAHUnion14 min
Feb 2, 3:57 PM CSTSevere Thunderstorm WarningPAHChristian, Todd33 min
Feb 2, 4:06 PM CSTFlash Flood WarningMEGFayette, Shelby114 min
Feb 2, 4:15 PM CSTTornado WarningPAHMuhlenberg30 min
Feb 2, 4:17 PM CSTTornado Warning Tornado observedJANNoxubee28 min
Feb 2, 4:36 PM CSTFlash Flood WarningMEGDeSoto, Lafayette, Marshall, Panola, Quitman, Tate3 hr
Feb 2, 4:45 PM CSTTornado WarningMEGMarshall, Tate19 min
Feb 2, 4:53 PM CSTTornado WarningJANNoxubee67 min
Feb 2, 5:43 PM CSTTornado WarningJANLowndes19 min
Feb 2, 6:40 PM CSTSevere Thunderstorm WarningMEGBenton, Carroll, Henry35 min
Feb 2, 7:17 PM CSTFlash Flood WarningJANLeake, Neshoba, Winston4 hr
Feb 2, 7:34 PM CSTFlash Flood WarningPAHDaviess, Henderson, McLean, Webster116 min
Feb 2, 7:47 PM CSTTornado WarningJANLowndes, Noxubee58 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

Little Rock, AR (KBYH), launched 12:00Z, 6.4 hours before the alert went out and 146 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-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2016-02-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 226 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2016-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 403 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
226 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
403 m²/s²
0-3 km storm-relative helicity
512 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted.

016 
WWUS20 KWNS 021820
SEL9  
SPC WW 021820
ARZ000-ILZ000-KYZ000-MOZ000-MSZ000-TNZ000-030100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 9
NWS STORM PREDICTION CENTER NORMAN OK
1220 PM CST TUE FEB 2 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  EASTERN ARKANSAS
  SOUTHERN ILLINOIS
  WESTERN KENTUCKY
  SOUTHEAST MISSOURI
  NORTHERN MISSISSIPPI
  WESTERN TENNESSEE

* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 1220 PM UNTIL
  700 PM CST.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES POSSIBLE
  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

SUMMARY...STRONG TO SEVERE THUNDERSTORMS ARE FORECAST TO EVOLVE
ACROSS THE AREA OVER THE NEXT FEW HOURS.  STORMS CAPABLE OF DAMAGING
WINDS AND A FEW TORNADOES CAN BE EXPECTED.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 50 MILES WEST NORTHWEST OF
OWENSBORO KENTUCKY TO 40 MILES SOUTHWEST OF GREENWOOD
MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

&&

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 22045.


...GOSS

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 2, 9:54 AM CSTMesoscale DiscussionSPCClay, Craighead, Crittenden, Cross, Greene, Independence and 7 more96 min
Feb 2, 2:40 PM CSTMesoscale DiscussionSPCAllen, Barren, Breckinridge, Butler, Cumberland, Edmonson and 10 more95 min
Feb 2, 3:10 PM CSTTornado WatchSPCAdair, Allen, Barren, Boyle, Breckinridge, Butler and 24 more7 hr
Feb 2, 5:31 PM CSTMesoscale DiscussionSPCAdair, Allen, Barren, Boyle, Breckinridge, Butler and 25 more119 min
Feb 2, 10:41 AM CSTMesoscale DiscussionSPCAdams, Attala, Benton, Calhoun, Carroll, Chickasaw and 36 more2 hr
Feb 2, 12:50 PM CSTMesoscale DiscussionSPCForrest, George, Greene, Hancock, Harrison, Jackson and 8 more55 min
Feb 2, 1:18 PM CSTTornado WatchSPCAdams, Amite, Claiborne, Clarke, Copiah, Covington and 37 more6 hr
Feb 2, 1:43 PM CSTMesoscale DiscussionSPCChoctaw, Clay, Covington, Jasper, Jefferson Davis, Leake and 9 more2 hr
Feb 2, 5:18 PM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Clarke, Copiah, Covington and 37 more117 min

Nearby

Tornado Watches in Mississippi, 2016Tornado Watches in Tennessee, 2016Tornado Watches in Kentucky, 2016Every tornado watch in 2016

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.