Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 113, NWS Jackson, MS

March 11, 2012Issaquena County, Sharkey County, Washington County, Mississippi; Chicot County, Arkansas; East Carroll Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Mar 11, 2012, 8:28 PM CDT for Issaquena County, Sharkey County, Washington County, Mississippi; Chicot County, Arkansas; East Carroll Parish, Louisiana. It was in force for 47 min. 1 report 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: Mar 11, 2012, 8:28 PM CDT (01:28 UTC)
Expired: Mar 11, 2012, 9:15 PM CDT
In force: 47 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Chicot County, AR, East Carroll Parish, LA, Issaquena County, MS, Sharkey County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 107 km from the middle of the area, began a volume at 01:29 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
Mar 11, 8:28 PM CDT	TSTM WND DMG	3 E Shelburn, LA	TREES FELL IN THE LAKE PROVIDENCE AREA...INCLUDING ONE THAT BLOCKED LA HIGHWAY 596.

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
Mar 11, 6:42 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.5 hours before the alert went out and 97 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: 10 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 960 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 221 m²/s²
0-3 km storm-relative helicity: 261 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

430 
WUUS54 KJAN 120128
SVRJAN
ARC017-LAC035-MSC055-125-151-120215-
/O.NEW.KJAN.SV.W.0113.120312T0128Z-120312T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
828 PM CDT SUN MAR 11 2012

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN EAST CARROLL PARISH IN NORTHEAST LOUISIANA...
  THIS INCLUDES THE CITY OF TRANSYLVANIA...
  SOUTHWESTERN WASHINGTON COUNTY IN NORTHWEST MISSISSIPPI...
  EXTREME SOUTHEASTERN CHICOT COUNTY IN SOUTHEAST ARKANSAS...
  NORTHWESTERN ISSAQUENA COUNTY IN WEST CENTRAL MISSISSIPPI...
  SHARKEY COUNTY IN WEST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF ROLLING FORK...

* UNTIL 915 PM CDT

* AT 828 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM GASSOWAY TO 9 MILES NORTHWEST OF FITLER TO TRANSYLVANIA MOVING
  EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  FITLER BY 835 PM CDT...
  GLEN ALLAN BY 840 PM CDT...
  ONWARD...GRACE AND ROLLING FORK BY 845 PM CDT...
  PANTHER BURN...NITTA YUMA AND ANGUILLA BY 850 PM CDT...
  DELTA CITY BY 855 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT
QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS
A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI.

&&

LAT...LON 3283 9116 3301 9123 3310 9073 3291 9069
      3289 9069 3284 9076 3282 9076 3281 9071
      3271 9074 3265 9125
TIME...MOT...LOC 0128Z 258DEG 39KT 3297 9115 3284 9109
          3272 9116

$$

BK

3 follow-up statements

684 
WWUS54 KJAN 120133
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
833 PM CDT SUN MAR 11 2012

ARC017-120143-
/O.CAN.KJAN.SV.W.0113.000000T0000Z-120312T0215Z/
CHICOT AR-
833 PM CDT SUN MAR 11 2012

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTHEASTERN CHICOT
COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI.

LAT...LON 3283 9116 3300 9123 3300 9117 3302 9115
      3310 9073 3289 9069 3284 9076 3282 9076
      3281 9072 3271 9074 3265 9125
TIME...MOT...LOC 0133Z 258DEG 39KT 3298 9108 3285 9103
          3273 9110

$$

LAC035-MSC055-125-151-120215-
/O.CON.KJAN.SV.W.0113.000000T0000Z-120312T0215Z/
WASHINGTON MS-SHARKEY MS-ISSAQUENA MS-EAST CARROLL LA-
833 PM CDT SUN MAR 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR NORTHWESTERN ISSAQUENA...SHARKEY AND SOUTHERN WASHINGTON
COUNTIES...AND NORTHEASTERN EAST CARROLL PARISH...

AT 833 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 7 MILES SOUTHWEST OF GLEN ALLAN TO MAYERSVILLE TO TRANSYLVANIA
MOVING EAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  GLEN ALLAN AND FITLER BY 840 PM CDT...
  ONWARD...GRACE...ROLLING FORK AND CARY BY 845 PM CDT...
  NITTA YUMA...PANTHER BURN AND ANGUILLA BY 850 PM CDT...
  DELTA CITY BY 855 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT
QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS
A SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI.

&&

LAT...LON 3283 9116 3300 9123 3300 9117 3302 9115
      3310 9073 3289 9069 3284 9076 3282 9076
      3281 9072 3271 9074 3265 9125
TIME...MOT...LOC 0133Z 258DEG 39KT 3298 9108 3285 9103
          3273 9110

$$

BK

049 
WWUS54 KJAN 120143
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
843 PM CDT SUN MAR 11 2012

LAC035-120153-
/O.CAN.KJAN.SV.W.0113.000000T0000Z-120312T0215Z/
EAST CARROLL LA-
843 PM CDT SUN MAR 11 2012

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME EAST CENTRAL EAST
CARROLL PARISH IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI.

LAT...LON 3302 9110 3310 9073 3289 9069 3284 9076
      3282 9076 3281 9073 3271 9074 3269 9107
      3272 9105 3274 9109 3285 9104
TIME...MOT...LOC 0143Z 258DEG 39KT 3299 9096 3286 9091
          3274 9098

$$

MSC055-125-151-120215-
/O.CON.KJAN.SV.W.0113.000000T0000Z-120312T0215Z/
WASHINGTON MS-SHARKEY MS-ISSAQUENA MS-
843 PM CDT SUN MAR 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR CENTRAL ISSAQUENA...SHARKEY AND SOUTH CENTRAL WASHINGTON
COUNTIES...

AT 843 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM GLEN ALLAN TO CARY TO FITLER MOVING EAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  NITTA YUMA...PANTHER BURN AND ANGUILLA BY 850 PM CDT...
  DELTA CITY BY 855 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT
QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS
A SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI.

&&

LAT...LON 3302 9110 3310 9073 3289 9069 3284 9076
      3282 9076 3281 9073 3271 9074 3269 9107
      3272 9105 3274 9109 3285 9104
TIME...MOT...LOC 0143Z 258DEG 39KT 3299 9096 3286 9091
          3274 9098

$$

BK

696 
WWUS54 KJAN 120154
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
854 PM CDT SUN MAR 11 2012

MSC055-120204-
/O.CAN.KJAN.SV.W.0113.000000T0000Z-120312T0215Z/
ISSAQUENA MS-
854 PM CDT SUN MAR 11 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ISSAQUENA COUNTY IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI.

LAT...LON 3310 9073 3289 9069 3284 9076 3282 9076
      3281 9073 3271 9074 3270 9096 3284 9096
      3286 9094 3301 9091 3301 9109 3302 9110
TIME...MOT...LOC 0154Z 258DEG 39KT 3301 9082 3288 9077
          3276 9084

$$

MSC125-151-120215-
/O.CON.KJAN.SV.W.0113.000000T0000Z-120312T0215Z/
WASHINGTON MS-SHARKEY MS-
854 PM CDT SUN MAR 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR SHARKEY AND SOUTH CENTRAL WASHINGTON COUNTIES...

AT 854 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM NITTA YUMA TO ROLLING FORK TO CARY MOVING EAST AT 45 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. WHILE NOT IMMEDIATELY
LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT
QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS
A SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT MONDAY MORNING FOR
SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN MISSISSIPPI.

&&

LAT...LON 3310 9073 3289 9069 3284 9076 3282 9076
      3281 9073 3271 9074 3270 9096 3284 9096
      3286 9094 3301 9091 3301 9109 3302 9110
TIME...MOT...LOC 0154Z 258DEG 39KT 3301 9082 3288 9077
          3276 9084

$$

BK

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 11, 8:53 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Sharkey, Sunflower, Washington, Yazoo	52 min
Mar 11, 9:03 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Warren, Yazoo	42 min
Mar 11, 9:27 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Humphreys, Yazoo	27 min
Mar 11, 9:44 PM CDT	Special Weather Statement	JAN	Warren	31 min
Mar 11, 9:55 PM CDT	Special Weather Statement	JAN	Holmes	30 min
Mar 11, 10:06 PM CDT	Special Weather Statement	JAN	Yazoo	29 min
Mar 11, 10:30 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Yazoo	45 min
Mar 11, 11:16 PM CDT	Special Weather Statement	JAN	Madison	29 min
Mar 11, 11:32 PM CDT	Special Weather Statement	JAN	Attala	33 min
Mar 12, 3:52 AM CDT	Special Weather Statement	JAN	Lamar	28 min
Mar 12, 4:28 AM CDT	Special Weather Statement	JAN	Lamar	27 min
Mar 12, 6:32 AM CDT	River Flood Warning	JAN	Madison, Yazoo	3 days
Mar 11, 7:42 PM CDT	Flash Flood Warning	JAN	Ashley, Chicot	3 hr
Mar 11, 7:07 PM CDT	Special Weather Statement	JAN	Franklin	28 min
Mar 11, 7:18 PM CDT	Special Weather Statement	JAN	Morehouse, Richland	37 min
Mar 11, 7:24 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse	51 min
Mar 11, 7:38 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland, West Carroll	37 min
Mar 11, 7:48 PM CDT	Tornado Warning	JAN	Morehouse, West Carroll	27 min
Mar 11, 8:06 PM CDT	Special Weather Statement	JAN	Franklin	29 min
Mar 11, 8:07 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison	38 min
Mar 11, 8:16 PM CDT	Special Weather Statement	JAN	East Carroll	29 min
Mar 11, 8:48 PM CDT	Flash Flood Warning	JAN	East Carroll, Franklin, Madison, Richland, Tensas	117 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2012 Severe Thunderstorm Warnings in Arkansas, 2012 Severe Thunderstorm Warnings in Louisiana, 2012 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.