Alert archive / Louisiana / Tornado Warnings in 2011

Tornado Warning 116, NWS Jackson, MS

April 26, 2011East Carroll Parish, West Carroll Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Apr 26, 2011, 11:08 PM CDT for East Carroll Parish, West Carroll Parish, Louisiana. It was in force for 67 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, 11:08 PM CDT (04:08 UTC)
Expired: Apr 27, 2011, 12:15 AM CDT
In force: 67 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties East Carroll Parish, LA, West Carroll Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 144 km from the middle of the area, began a volume at 04:11 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 27, 12:05 AM CDT	TSTM WND DMG	Pioneer, LA	EXTENSIVE TREE AND POWERLINE DAMAGE ACROSS WEST CARROLL PARISH. TREES DOWN ON SOME HOMES. MOST EXTENSIVE DAMAGE IS REPORTED NEAR THE PIONEER COMMUNITY WHERE RADAR INDICATED A POSSIBLE TORNADO AT SHORTLY AFTER MIDNIGHT.
Apr 27, 12:20 AM CDT	TSTM WND DMG	6 Sw Lake Providence, LA	A TRACTOR SHED WAS DESTROYED AND THE FIRE STATION IN THE BOWIE COMMUNITY WAS HEAVILY DAMAGED. TREES AND POWER LINES WERE DOWN AS WELL...POSSIBLE TORNADO.
Apr 27, 12:20 AM CDT	TSTM WND DMG	Lake Providence, LA	TREES AND POWERLINES DOWN PARISH WIDE. TREE DOWN ON A HOUSE IN LAKE PROVIDENCE. STILL GETTING REPORTS.

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, 4.1 hours before the alert went out and 134 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.

560 
WFUS54 KJAN 270408
TORJAN
LAC035-123-270515-
/O.NEW.KJAN.TO.W.0116.110427T0408Z-110427T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1108 PM CDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN EAST CARROLL PARISH IN NORTHEAST LOUISIANA...
  THIS INCLUDES THE CITY OF LAKE PROVIDENCE...
  WEST CARROLL PARISH IN NORTHEAST LOUISIANA...

* UNTIL 1215 AM CDT

* AT 1108 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES
  SOUTHWEST OF GOODWILL MOVING NORTHEAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO OAK
  GROVE...SHELBURN...MILLIKIN AND GASSOWAY

SIGNIFICANT DAMAGE FROM A LIKELY TORNADO HAS JUST BEEN REPORTED IN 
MOREHOUSE PARISH WITH THIS STORM!

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 IN EXCESS OF 70 
MPH!

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

&&

LAT...LON 3276 9158 3279 9160 3286 9156 3290 9149
      3297 9145 3301 9137 3301 9116 3294 9121
      3290 9118 3292 9113 3298 9112 3298 9109
      3288 9108 3284 9114 3276 9116 3264 9159
      3267 9159 3268 9162 3273 9162
TIME...MOT...LOC 0408Z 239DEG 39KT 3274 9163

$$

BYB

1 follow-up statement

233 
WWUS54 KJAN 270453
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1153 PM CDT TUE APR 26 2011

LAC035-123-270515-
/O.CON.KJAN.TO.W.0116.000000T0000Z-110427T0515Z/
WEST CARROLL LA-EAST CARROLL LA-
1153 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR NORTHERN
EAST CARROLL AND WEST CARROLL PARISHES...

AT 1150 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR OAK GROVE MOVING NORTHEAST AT 45 MPH.

ALSO AT THAT TIME NATIONAL WEATHER SERVICE METEOROLOGISTS WERE 
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR 
GASSOWAY...AND MOVING NORTHEAST AT 45 MPH. 

ALSO AT THAT TIME METEOROLOGISTS WERE TRACKING YET ANOTHER SEVERE 
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 15 MILES NORTHEAST OF 
OAK RIDGE...AND MOVING NORTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
KILBOURNE...SHELBURN...LAKE PROVIDENCE...MILLIKIN AND GASSOWAY

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...THESE STORMS ARE CAPABLE OF PRODUCING 
GOLF BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 
70 MPH!

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

&&

LAT...LON 3276 9158 3279 9160 3286 9156 3290 9149
      3297 9145 3301 9137 3301 9116 3294 9121
      3290 9118 3292 9113 3298 9112 3298 9109
      3288 9108 3284 9114 3276 9116 3264 9159
      3267 9159 3268 9162 3273 9162
TIME...MOT...LOC 0450Z 245DEG 40KT 3289 9142

$$

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, 10:31 PM CDT	Tornado Warning	JAN	Morehouse	59 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, 11:17 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.