Alert archive / Mississippi / Tornado Watches in 2016

Tornado Watch 10

February 2, 20167 counties in Alabama; 31 parishes in Louisiana; 43 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Feb 2, 2016, 1:18 PM CST for 7 counties in Alabama; 31 parishes in Louisiana; 43 counties in Mississippi. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Feb 2, 2016, 1:18 PM CST (19:18 UTC)
Expired
Feb 2, 2016, 7:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 81 counties

Baldwin County, AL, Choctaw County, AL, Clarke County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Acadia Parish, LA, Ascension Parish, LA, Assumption Parish, LA, Avoyelles Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Carroll Parish, LA, East Feliciana Parish, LA, Franklin Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Lafayette Parish, LA, Livingston Parish, LA, Madison Parish, LA, Pointe Coupee Parish, LA, Richland Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Saint Tammany Parish, LA, St. Mary Parish, LA, Tangipahoa Parish, LA, Tensas Parish, LA, Vermilion Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Carroll Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Hinds County, MS, Issaquena County, MS, Jackson County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Neshoba County, MS, Newton County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Warren County, MS, Wayne County, MS, Wilkinson County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 64 km from the middle of the area, began a volume at 19:22 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
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
5%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Feb 2, 1:43 PM CSTSevere Thunderstorm WarningJANCovington, Jefferson Davis, Simpson, Smith47 min
Feb 2, 2:04 PM CSTTornado WarningJANJasper, Scott, Smith41 min
Feb 2, 2:21 PM CSTTornado WarningJANNeshoba54 min
Feb 2, 2:45 PM CSTSevere Thunderstorm WarningJANCopiah, Hinds, Rankin, Simpson45 min
Feb 2, 2:48 PM CSTTornado WarningJANLauderdale, Newton57 min
Feb 2, 3:00 PM CSTTornado WarningJANKemper, Neshoba30 min
Feb 2, 3:25 PM CSTTornado Warning Tornado observedJANKemper, Lauderdale65 min
Feb 2, 3:26 PM CSTSevere Thunderstorm WarningJANRankin, Scott21 min
Feb 2, 4:17 PM CSTSevere Thunderstorm WarningJANNeshoba, Newton43 min
Feb 2, 4:30 PM CSTSevere Thunderstorm WarningJANSimpson45 min
Feb 2, 4:31 PM CSTTornado WarningJANKemper, Neshoba, Newton59 min
Feb 2, 4:39 PM CSTFlash Flood WarningJANCopiah, Lawrence, Lincoln, Simpson51 min
Feb 2, 5:08 PM CSTFlash Flood WarningJANRankin, Simpson3 hr
Feb 2, 5:14 PM CSTSevere Thunderstorm WarningJANRankin, Simpson, Smith46 min
Feb 2, 5:21 PM CSTFlash Flood WarningJANCopiah, Lawrence, Lincoln, Simpson6 hr
Feb 2, 5:42 PM CSTSevere Thunderstorm WarningJANFranklin33 min
Feb 2, 5:43 PM CSTFlash Flood WarningJANRankin, Scott, Smith7 hr
Feb 2, 6:12 PM CSTSevere Thunderstorm WarningJANNeshoba, Newton, Scott63 min
Feb 2, 6:20 PM CSTFlash Flood WarningJANHinds, Madison, Rankin, Scott6 hr
Feb 2, 6:27 PM CSTFlash Flood WarningJANClaiborne, Copiah, Franklin, Jefferson, Lincoln4 hr
Feb 2, 6:45 PM CSTSevere Thunderstorm WarningJANCopiah45 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, 7.3 hours before the alert went out and 68 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, Jackson, MS at 12:00Z on 2016-02-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 550 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2016-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 329 square meters per square second.1939587897Sfc1 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
550 J/kg
Mixed-layer CIN
-159 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
329 m²/s²
0-3 km storm-relative helicity
540 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.7

Open this sounding in Storm Lab

The text

As transmitted.

044 
WWUS20 KWNS 021916
SEL0  
SPC WW 021916
ALZ000-LAZ000-MSZ000-CWZ000-030100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 10
NWS STORM PREDICTION CENTER NORMAN OK
115 PM CST TUE FEB 2 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHWEST ALABAMA
  PARTS OF EASTERN AND SOUTHEAST LOUISIANA
  CENTRAL AND SOUTHERN MISSISSIPPI
  COASTAL WATERS

* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 115 PM UNTIL
  700 PM CST.

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

SUMMARY...STORMS CONTINUE TO INCREASE ACROSS THE WATCH AREA...AND
EXPECT THIS TREND TO CONTINUE THROUGH THE AFTERNOON AND EVENING. 
DAMAGING WINDS AND A FEW TORNADOES ARE EXPECTED WITH THE
STRENGTHENING STORMS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST OF NATCHEZ
MISSISSIPPI TO 60 MILES NORTHEAST OF MOBILE ALABAMA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU0).

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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 9...

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 450.
MEAN STORM MOTION VECTOR 21045.


...GOSS

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 2, 12:50 PM CSTMesoscale DiscussionSPCBaldwin, Butler, Clarke, Conecuh, Covington, Escambia and 3 more55 min
Feb 2, 2:40 PM CSTMesoscale DiscussionSPCAutauga, Bibb, Blount, Chilton, Colbert, Cullman and 27 more95 min
Feb 2, 3:10 PM CSTTornado WatchSPCBibb, Blount, Chilton, Colbert, Cullman, Dallas and 23 more7 hr
Feb 2, 5:18 PM CSTMesoscale DiscussionSPCBaldwin, Choctaw, Clarke, Mobile, Monroe, Washington and 1 more117 min
Feb 2, 5:31 PM CSTMesoscale DiscussionSPCAutauga, Bibb, Blount, Chilton, Colbert, Cullman and 26 more119 min
Feb 2, 10:41 AM CSTMesoscale DiscussionSPCEast Carroll, Franklin, Madison, Tensas2 hr
Feb 2, 12:22 PM CSTTornado WatchSPCAlcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 33 more9 hr
Feb 2, 1:43 PM CSTMesoscale DiscussionSPCChoctaw, Clay, Covington, Jasper, Jefferson Davis, Leake and 9 more2 hr

Nearby

Tornado Watches in Mississippi, 2016Tornado Watches in Louisiana, 2016Tornado Watches in Alabama, 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.