Alert archive / Mississippi / Tornado Watches in 2012

Tornado Watch 695

December 25, 201225 counties in Alabama; 26 parishes in Louisiana; 41 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Dec 25, 2012, 12:58 PM CST for 25 counties in Alabama; 26 parishes in Louisiana; 41 counties in Mississippi. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued: Dec 25, 2012, 12:58 PM CST (18:58 UTC)
Expired: Dec 25, 2012, 10:00 PM CST
In force: 9 hr
Issued by: the Storm Prediction Center
Particularly dangerous situation: Yes
Largest hail expected: 1.5 in
Strongest gust expected: 65 kt

All 92 counties

Autauga County, AL, Baldwin County, AL, Barbour County, AL, Bullock County, AL, Chambers County, AL, Choctaw County, AL, Clarke County, AL, Dallas County, AL, Elmore County, AL, Greene County, AL, Hale County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Montgomery County, AL, Perry County, AL, Pike County, AL, Russell County, AL, Sumter County, AL, Tallapoosa County, AL, Washington County, AL, Wilcox County, AL, Ascension Parish, LA, Assumption Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Jefferson Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Madison Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Tensas Parish, LA, Terrebonne Parish, LA, Washington Parish, LA, West Baton Rouge 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, 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, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Warren County, MS, Wayne County, MS, Wilkinson County, MS, Yazoo County, MS

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: 70%
Ten or more severe wind reports: 70%
One or more gusts of 65 knots or more: 60%
Ten or more severe hail reports: 20%
One or more hailstones of 2 inches or more: 10%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Dec 25, 1:04 PM CST	Severe Thunderstorm Warning	JAN	Catahoula, Concordia	56 min
Dec 25, 1:09 PM CST	Tornado Warning	JAN	Catahoula, Concordia	20 min
Dec 25, 1:18 PM CST	Severe Thunderstorm Warning	JAN	Claiborne, Warren	42 min
Dec 25, 1:22 PM CST	Severe Thunderstorm Warning	JAN	Madison, Rankin	43 min
Dec 25, 1:37 PM CST	Severe Thunderstorm Warning	JAN	Catahoula, Concordia	38 min
Dec 25, 1:40 PM CST	Severe Thunderstorm Warning	JAN	Hinds	50 min
Dec 25, 1:45 PM CST	Severe Thunderstorm Warning	LIX	East Feliciana, Pointe Coupee, West Feliciana	60 min
Dec 25, 1:48 PM CST	Severe Thunderstorm Warning	LIX	Amite	27 min
Dec 25, 1:49 PM CST	Severe Thunderstorm Warning	JAN	Tensas	41 min
Dec 25, 1:52 PM CST	Tornado Warning	LIX	East Feliciana, Pointe Coupee, West Feliciana	53 min
Dec 25, 1:52 PM CST	Severe Thunderstorm Warning	JAN	Leake, Scott	29 min
Dec 25, 1:55 PM CST	Tornado Warning	JAN	Franklin, Lincoln	50 min
Dec 25, 1:57 PM CST	Tornado Warning	LIX	Lafourche, Saint Charles, Saint James, Saint John the Baptist	33 min
Dec 25, 1:57 PM CST	Flash Flood Warning	JAN	Hinds, Madison, Rankin	3 hr
Dec 25, 1:59 PM CST	Tornado Warning	LIX	Wilkinson	46 min
Dec 25, 2:02 PM CST	Severe Thunderstorm Warning	JAN	Claiborne, Jefferson	43 min
Dec 25, 2:07 PM CST	Tornado Warning	LIX	Saint Tammany, Tangipahoa, Washington	38 min
Dec 25, 2:09 PM CST	Severe Thunderstorm Warning	JAN	Franklin	51 min
Dec 25, 2:17 PM CST	Tornado Warning	LIX	Jefferson, Lafourche, Saint Charles, Saint John the Baptist	43 min
Dec 25, 2:18 PM CST	Severe Thunderstorm Warning	JAN	Madison, Rankin	42 min
Dec 25, 2:20 PM CST	Severe Thunderstorm Warning	JAN	Copiah, Lincoln	40 min
Dec 25, 2:28 PM CST	Severe Thunderstorm Warning	JAN	Hinds	47 min
Dec 25, 2:30 PM CST	Tornado Warning	LIX	East Feliciana, Saint Helena	45 min
Dec 25, 2:38 PM CST	Tornado Warning	LIX	Pointe Coupee, West Feliciana	37 min
Dec 25, 2:38 PM CST	Tornado Warning	JAN	Copiah, Lawrence, Simpson	34 min
Dec 25, 2:41 PM CST	Tornado Warning	LIX	East Feliciana	34 min
Dec 25, 2:43 PM CST	Tornado Warning	MOB	Clarke	32 min
Dec 25, 2:50 PM CST	Tornado Warning	LIX	Jefferson, Orleans, Saint Charles	25 min
Dec 25, 2:52 PM CST	Severe Thunderstorm Warning	JAN	Copiah	23 min
Dec 25, 2:53 PM CST	Severe Thunderstorm Warning	JAN	Leake, Madison, Rankin, Scott	52 min
Dec 25, 2:54 PM CST	Tornado Warning	LIX	Saint Tammany	36 min
Dec 25, 2:55 PM CST	Tornado Warning	MOB	Clarke, Monroe	65 min
Dec 25, 2:55 PM CST	Flash Flood Warning	JAN	Copiah, Franklin, Jefferson, Lawrence, Lincoln, Simpson	2 hr
Dec 25, 2:58 PM CST	Tornado Warning	LIX	East Baton Rouge	32 min
Dec 25, 2:59 PM CST	Severe Thunderstorm Warning	BMX	Marengo	30 min
Dec 25, 2:59 PM CST	Tornado Warning	LIX	Saint Tammany	31 min
Dec 25, 2:59 PM CST	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	46 min
Dec 25, 3:02 PM CST	Tornado Warning	LIX	Jefferson, Orleans, Saint Charles	28 min
Dec 25, 3:02 PM CST	Severe Thunderstorm Warning	JAN	Simpson	13 min
Dec 25, 3:10 PM CST	Severe Thunderstorm Warning	JAN	Attala, Leake, Madison	50 min
Dec 25, 3:13 PM CST	Tornado Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	47 min
Dec 25, 3:17 PM CST	Severe Thunderstorm Warning	JAN	Simpson	43 min
Dec 25, 3:19 PM CST	Tornado Warning	MOB	Perry, Stone	56 min
Dec 25, 3:26 PM CST	Severe Thunderstorm Warning	JAN	Copiah, Lawrence	34 min
Dec 25, 3:28 PM CST	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, West Baton Rouge	62 min
Dec 25, 3:28 PM CST	Severe Thunderstorm Warning	JAN	Leake, Neshoba, Newton, Scott, Winston	47 min
Dec 25, 3:29 PM CST	Tornado Warning	LIX	Pearl River	22 min
Dec 25, 3:31 PM CST	Tornado Warning	JAN	Lawrence, Lincoln	23 min
Dec 25, 3:34 PM CST	Severe Thunderstorm Warning	JAN	Scott, Smith	56 min
Dec 25, 3:36 PM CST	Severe Thunderstorm Warning	JAN	Forrest, Jones, Lamar	54 min
Dec 25, 3:42 PM CST	Tornado Warning	JAN	Forrest	33 min
Dec 25, 3:45 PM CST	Tornado Warning	LIX	Hancock, Harrison, Pearl River	30 min
Dec 25, 3:46 PM CST	Tornado Warning	LIX	Saint Helena, Tangipahoa	44 min
Dec 25, 3:47 PM CST	Tornado Warning	LIX	Walthall	28 min
Dec 25, 3:49 PM CST	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	56 min
Dec 25, 3:52 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Simpson	38 min
Dec 25, 3:54 PM CST	Severe Thunderstorm Warning	LIX	Washington	66 min
Dec 25, 3:55 PM CST	Severe Thunderstorm Warning	JAN	Kemper, Noxubee, Winston	65 min
Dec 25, 3:58 PM CST	Tornado Warning	LIX	Jefferson, Lafourche, Plaquemines, Saint Bernard	16 min
Dec 25, 4:01 PM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	44 min
Dec 25, 4:01 PM CST	Tornado Warning	JAN	Jones	29 min
Dec 25, 4:02 PM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Marion	13 min
Dec 25, 4:06 PM CST	Tornado Warning	MOB	Greene, Perry	54 min
Dec 25, 4:07 PM CST	Tornado Warning	MOB	Clarke, Monroe, Wilcox	68 min
Dec 25, 4:07 PM CST	Severe Thunderstorm Warning	JAN	Jasper, Lauderdale, Newton	38 min
Dec 25, 4:10 PM CST	Severe Thunderstorm Warning	JAN	Clarke, Lauderdale	35 min
Dec 25, 4:11 PM CST	Severe Thunderstorm Warning	LIX	Ascension, Livingston, Saint Helena, Saint Tammany, Tangipahoa, Washington	64 min
Dec 25, 4:12 PM CST	Tornado Warning	MOB	Mobile	33 min
Dec 25, 4:12 PM CST	Tornado Warning	MOB	George, Greene, Perry, Stone	48 min
Dec 25, 4:14 PM CST	Tornado Warning	MOB	Perry, Wayne	61 min
Dec 25, 4:17 PM CST	Tornado Warning	MOB	Clarke, Mobile, Washington	10 min
Dec 25, 4:18 PM CST	Tornado Warning	JAN	Forrest, Lamar, Marion	57 min
Dec 25, 4:19 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis	26 min
Dec 25, 4:24 PM CST	Tornado Warning	MOB	Choctaw	66 min
Dec 25, 4:24 PM CST	Tornado Warning	JAN	Clarke, Lauderdale	41 min
Dec 25, 4:28 PM CST	Tornado Warning	MOB	Wilcox	17 min
Dec 25, 4:31 PM CST	Severe Thunderstorm Warning	JAN	Jasper, Jones	59 min
Dec 25, 4:33 PM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	42 min
Dec 25, 4:39 PM CST	Tornado Warning	MOB	Conecuh, Escambia, Monroe	51 min
Dec 25, 4:44 PM CST	Tornado Warning Emergency	MOB	Baldwin, Mobile	61 min
Dec 25, 4:47 PM CST	Severe Thunderstorm Warning	LIX	Saint John the Baptist, Saint Tammany, Tangipahoa, Washington	58 min
Dec 25, 4:50 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Mobile, Washington	55 min
Dec 25, 4:51 PM CST	Flash Flood Warning	JAN	Clarke, Jasper, Kemper, Lauderdale, Neshoba, Newton and 2 more	105 min
Dec 25, 4:52 PM CST	Tornado Warning	MOB	Choctaw, Clarke, Washington	53 min
Dec 25, 4:54 PM CST	Flash Flood Warning	JAN	Covington, Forrest, Jones, Lamar, Marion	100 min
Dec 25, 4:54 PM CST	Severe Thunderstorm Warning	JAN	Clarke	66 min
Dec 25, 4:57 PM CST	Severe Thunderstorm Warning	JAN	Clarke, Lauderdale	33 min
Dec 25, 4:59 PM CST	Severe Thunderstorm Warning	JAN	Forrest, Lamar	61 min
Dec 25, 5:00 PM CST	Tornado Warning	MOB	Mobile, Washington	45 min
Dec 25, 5:08 PM CST	Tornado Warning	MOB	Wilcox	52 min
Dec 25, 5:09 PM CST	Severe Thunderstorm Warning	LIX	Assumption, Lafourche, Saint John the Baptist, Terrebonne	47 min
Dec 25, 5:15 PM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens	15 min
Dec 25, 5:16 PM CST	Tornado Warning	MOB	Baldwin, Clarke, Mobile, Monroe	44 min
Dec 25, 5:17 PM CST	Tornado Warning	MOB	Clarke, Washington	58 min
Dec 25, 5:23 PM CST	Tornado Warning	BMX	Marengo, Sumter	29 min
Dec 25, 5:23 PM CST	Tornado Warning	MOB	Monroe, Wilcox	23 min
Dec 25, 5:28 PM CST	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Mobile, Washington	62 min
Dec 25, 5:28 PM CST	Severe Thunderstorm Warning	JAN	Jones	17 min
Dec 25, 5:40 PM CST	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Wilcox	65 min
Dec 25, 5:44 PM CST	Tornado Warning	MOB	Clarke, Wilcox	46 min
Dec 25, 5:47 PM CST	Severe Thunderstorm Warning	BMX	Greene, Hale, Marengo, Sumter	47 min
Dec 25, 5:56 PM CST	Tornado Warning	MOB	Clarke, Washington	64 min
Dec 25, 6:08 PM CST	Tornado Warning	MOB	Clarke, Monroe, Wilcox	67 min
Dec 25, 6:10 PM CST	Severe Thunderstorm Warning	BMX	Dallas, Marengo, Perry	37 min
Dec 25, 6:15 PM CST	Severe Thunderstorm Warning	BMX	Chilton, Hale, Perry	45 min
Dec 25, 6:20 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Wilcox	55 min
Dec 25, 6:29 PM CST	Severe Thunderstorm Warning	MOB	Mobile, Washington	46 min
Dec 25, 6:44 PM CST	Tornado Warning	BMX	Barbour, Bullock, Pike	46 min
Dec 25, 6:45 PM CST	Severe Thunderstorm Warning	BMX	Bibb, Chilton, Perry, Shelby	30 min
Dec 25, 6:59 PM CST	Tornado Warning	MOB	Clarke, Monroe	45 min
Dec 25, 7:00 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Mobile, Monroe, Washington	60 min
Dec 25, 7:00 PM CST	Tornado Warning	MOB	Wilcox	30 min
Dec 25, 7:08 PM CST	Severe Thunderstorm Warning	BMX	Autauga, Bibb, Chilton, Dallas, Perry, Shelby	52 min
Dec 25, 7:14 PM CST	Tornado Warning	LIX	Plaquemines	16 min
Dec 25, 7:19 PM CST	Severe Thunderstorm Warning	MOB	Mobile	41 min
Dec 25, 7:21 PM CST	Tornado Warning	MOB	Mobile	39 min
Dec 25, 7:31 PM CST	Severe Thunderstorm Warning	BMX	Dallas, Lowndes	59 min
Dec 25, 7:34 PM CST	Tornado Warning	MOB	Wilcox	26 min
Dec 25, 7:37 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Conecuh, Monroe, Wilcox	53 min
Dec 25, 7:38 PM CST	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Clay, Coosa, Talladega	41 min
Dec 25, 7:59 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Conecuh, Escambia, Mobile, Monroe	46 min
Dec 25, 8:07 PM CST	Tornado Warning	BMX	Lowndes	46 min
Dec 25, 8:11 PM CST	Tornado Warning	MOB	Baldwin, Escambia	49 min
Dec 25, 8:40 PM CST	Tornado Warning	BMX	Autauga, Elmore, Montgomery	65 min
Dec 25, 8:44 PM CST	Severe Thunderstorm Warning	MOB	Conecuh, Escambia, Monroe	46 min
Dec 25, 8:58 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	47 min
Dec 25, 9:45 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Covington, Escambia	45 min
Dec 25, 9:51 PM CST	Severe Thunderstorm Warning	BMX	Montgomery	39 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.0 hours before the alert went out and 47 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: 790 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 576 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 10.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

331 
WWUS20 KWNS 251857
SEL5
SPC WW 251857
ALZ000-LAZ000-MSZ000-CWZ000-260200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 695
NWS STORM PREDICTION CENTER NORMAN OK
1255 PM CST TUE DEC 25 2012

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

       SOUTHWESTERN AND WEST-CENTRAL ALABAMA
       EASTERN AND SOUTHEASTERN LOUISIANA
       CENTRAL AND SOUTHERN MISSISSIPPI
       COASTAL WATERS

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL
800 PM CST.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 1.5 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 125 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES SOUTHWEST OF
BOOTHVILLE LOUISIANA TO 40 MILES NORTHEAST OF JACKSON
MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 692. WATCH NUMBER 692 WILL NOT BE IN EFFECT AFTER
1255 PM CST. CONTINUE...WW 693...WW 694...

DISCUSSION...WARM SECTOR SPREADING INLAND ACROSS WW AREA WILL BECOME
INCREASINGLY JUXTAPOSED WITH STRENGTHENING DEEP SHEAR AND ENLARGED
LOW-LEVEL HODOGRAPHS.  MCS MOVING EWD INTO THIS REGIME WILL
ENCOUNTER MLCAPE 500-1500 J/KG...WITH EFFECTIVE SRH MAXIMIZED NEAR
WARM FRONT AT 400-600 J/KG.  ANY RELATIVELY SUSTAINED/DISCRETE
SUPERCELLS WILL OFFER RISK OF LONG-TRACKED/DAMAGING TORNADOES.
DAMAGING GUSTS AND OCNL TORNADOES ARE ALSO LIKELY FROM QLCS/LEW/BOW
STRUCTURES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24040.


...EDWARDS

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 25, 2:32 PM CST	Mesoscale Discussion	SPC	Butler, Coffee, Conecuh, Covington, Crenshaw, Dale and 5 more	28 min
Dec 25, 2:41 PM CST	Tornado Watch	SPC	Butler, Coffee, Conecuh, Covington, Crenshaw, Dale and 4 more	7 hr
Dec 25, 3:44 PM CST	Mesoscale Discussion	SPC	Autauga, Baldwin, Butler, Choctaw, Clarke, Crenshaw and 13 more	91 min
Dec 25, 4:34 PM CST	Mesoscale Discussion	SPC	Bibb, Calhoun, Chambers, Clay, Cleburne, Coosa and 9 more	26 min
Dec 25, 4:38 PM CST	Severe Thunderstorm Watch	SPC	Bibb, Blount, Calhoun, Chilton, Clay, Cleburne and 11 more	5 hr
Dec 25, 5:17 PM CST	Mesoscale Discussion	SPC	Baldwin, Barbour, Bullock, Butler, Clarke, Coffee and 17 more	88 min
Dec 25, 1:01 AM CST	Mesoscale Discussion	SPC	Allen, Beauregard, Sabine, Vernon	59 min
Dec 25, 1:37 AM CST	Severe Thunderstorm Watch	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, De Soto and 9 more	7 hr
Dec 25, 5:56 AM CST	Mesoscale Discussion	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, De Soto and 10 more	94 min
Dec 25, 7:00 AM CST	Mesoscale Discussion	SPC	Acadia, Allen, Ascension, Assumption, Beauregard, Calcasieu and 24 more	60 min
Dec 25, 7:28 AM CST	Tornado Watch	SPC	Acadia, Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia and 19 more	6 hr
Dec 25, 8:46 AM CST	Mesoscale Discussion	SPC	Allen, Avoyelles, Beauregard, Bienville, Calcasieu, Caldwell and 21 more	59 min
Dec 25, 9:02 AM CST	Severe Thunderstorm Watch	SPC	Bienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 20 more	7 hr
Dec 25, 9:17 AM CST	Tornado Watch	SPC	Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 10 more	8 hr
Dec 25, 12:19 PM CST	Mesoscale Discussion	SPC	Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 35 more	71 min
Dec 25, 12:23 PM CST	Mesoscale Discussion	SPC	Bienville, Caldwell, Catahoula, Concordia, East Carroll, Franklin and 13 more	67 min
Dec 25, 3:22 PM CST	Mesoscale Discussion	SPC	Caldwell, East Carroll, Morehouse, Richland, West Carroll	53 min

Nearby

Tornado Watches in Mississippi, 2012 Tornado Watches in Louisiana, 2012 Tornado Watches in Alabama, 2012 Every tornado watch in 2012

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.