Alert archive / Louisiana / Tornado Warnings in 2011

Tornado Warning 114, NWS Jackson, MS

April 26, 2011Morehouse Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Apr 26, 2011, 10:31 PM CDT for Morehouse Parish, Louisiana. It was in force for 59 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 26, 2011, 10:31 PM CDT (03:31 UTC)
Expired: Apr 26, 2011, 11:30 PM CDT
In force: 59 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

County Morehouse Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 176 km from the middle of the area, began a volume at 03:35 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 was reported inside it

Time	Report	Where	Remark
Apr 26, 10:44 PM CDT	TSTM WND DMG	4 W Collinston, LA	MOREHOUSE PARISH SO REPORTING LOTS OF TREE AND POWERLINE DAMAGE AND POSSIBLE TORNADO TOUCHDOWN SOUTH AND SOUTHWEST OF BASTROP
Apr 26, 10:44 PM CDT	TORNADO 0	4 Wsw Bastrop, LA	A WEAK EF0 TORNADO OCURRED TO THE WEST OF BASTROP AND MOSTLY DOWNED LIMBS AND SNAPPED/UPROOTED A FEW TREES. SOME MINOR ROOF DAMAGE ALSO OCCURRED TO A COUPLE HOMES. PATH LENGTH 2.5 MI...75 YDS WIDE...MAX WINDS 80 MPH.
Apr 26, 10:49 PM CDT	TORNADO	7 Wnw Beekman, LA	TREES AND POWERLINES DOWN...HOUSE DAMAGED OR DESTROYED WITH PERSON REPORTEDLY TRAPPED...ON SULPHUR SPRINGS ROAD...LIKELY TORNADO BASED ON RADAR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 26, 9:33 PM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 3.5 hours before the alert went out and 166 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: 1600 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1229 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 229 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 12.6

Open this sounding in Storm Lab

The text

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

661 
WFUS54 KJAN 270331
TORJAN
LAC067-270430-
/O.NEW.KJAN.TO.W.0114.110427T0331Z-110427T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1031 PM CDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  MOREHOUSE PARISH IN NORTHEAST LOUISIANA...
  THIS INCLUDES THE CITY OF BASTROP...

* UNTIL 1130 PM CDT

* AT 1029 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 21 MILES        
  SOUTHWEST OF BASTROP MOVING EAST NORTHEAST AT 45 MPH.
 
  IN ADDITION AT THAT TIME THERE WAS ANOTHER CELL DISPLAYING         
  CIRCULATION ALSO CAPABLE OF A TORNADO 8 MILES WEST OF              
  BASTROP...ALSO MOVING EAST NORTHEAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  BEEKMAN...GALION AND JONES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS UP TO 80 MPH!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3301 9189 3302 9143 3301 9143 3290 9148
      3286 9156 3279 9160 3276 9158 3264 9164
      3262 9170 3256 9175 3257 9181 3253 9185
      3255 9188 3253 9190 3267 9191 3271 9197
      3269 9204 3272 9206 3292 9207
TIME...MOT...LOC 0329Z 248DEG 41KT 3254 9207

$$

BYB

1 follow-up statement

916 
WWUS54 KJAN 270349
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1049 PM CDT TUE APR 26 2011

LAC067-270430-
/O.CON.KJAN.TO.W.0114.000000T0000Z-110427T0430Z/
MOREHOUSE LA-
1049 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT FOR
MOREHOUSE PARISH...

AT 1049 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED 6 MILES SOUTH OF COLLINSTON MOVING EAST AT 45
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO OAK
RIDGE...BEEKMAN...MER ROUGE...GALION...BONITA AND JONES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS UP TO 80 MPH!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT WEDNESDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3301 9189 3302 9143 3301 9143 3290 9148
      3286 9156 3279 9160 3276 9158 3264 9164
      3262 9170 3256 9175 3257 9181 3253 9185
      3255 9188 3253 9190 3267 9191 3271 9197
      3269 9204 3272 9206 3292 9207
TIME...MOT...LOC 0349Z 248DEG 41KT 3262 9182

$$

BYB

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 26, 9:55 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	80 min
Apr 26, 10:54 PM CDT	Tornado Warning	JAN	Morehouse	41 min
Apr 26, 11:05 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, West Carroll	40 min
Apr 26, 11:08 PM CDT	Tornado Warning	JAN	East Carroll, West Carroll	67 min
Apr 26, 11:17 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	43 min
Apr 26, 11:27 PM CDT	Flash Flood Warning	JAN	East Carroll, Madison, Morehouse, Richland, West Carroll	2 hr
Apr 26, 11:30 PM CDT	Tornado Warning	JAN	Morehouse	34 min
Apr 26, 11:40 PM CDT	Tornado Warning	JAN	Franklin, Richland, West Carroll	65 min
Apr 26, 11:59 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison, Richland, West Carroll	46 min
Apr 27, 12:05 AM CDT	Tornado Warning	JAN	Franklin, Richland	55 min
Apr 27, 12:08 AM CDT	Tornado Warning	JAN	East Carroll, West Carroll	67 min
Apr 27, 12:34 AM CDT	Flash Flood Warning	JAN	Franklin, Madison, Richland	116 min
Apr 27, 12:36 AM CDT	Severe Thunderstorm Warning	JAN	Madison, Tensas	54 min
Apr 27, 12:41 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Richland, West Carroll	34 min
Apr 27, 1:10 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Richland	50 min
Apr 27, 1:21 AM CDT	Flash Flood Warning	JAN	East Carroll, Franklin, Madison, Morehouse, Richland, West Carroll	114 min
Apr 27, 1:27 AM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison, Richland	63 min
Apr 27, 1:43 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Tensas	47 min
Apr 27, 1:58 AM CDT	Tornado Warning	JAN	Catahoula, Concordia, Franklin, Tensas	47 min
Apr 27, 2:20 AM CDT	Flash Flood Warning	JAN	Catahoula, Concordia, Franklin, Madison, Richland, Tensas	115 min
Apr 27, 2:42 AM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia, Franklin, Tensas	48 min
Apr 27, 3:30 AM CDT	Severe Thunderstorm Warning	JAN	Tensas	45 min
Apr 27, 5:07 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Richland, Tensas	38 min
Apr 27, 5:20 AM CDT	Tornado Warning	JAN	Franklin, Madison, Tensas	40 min
Apr 27, 5:40 AM CDT	Severe Thunderstorm Warning	JAN	Franklin, Madison, Tensas	36 min
Apr 27, 5:45 AM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison	32 min
Apr 27, 11:06 AM CDT	Special Weather Statement	JAN	Morehouse	29 min
Apr 27, 1:34 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia, Tensas	56 min

Nearby

Tornado Warnings in Louisiana, 2011 Every tornado warning in 2011 Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.