Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 49, NWS Jackson, MS

February 24, 2011Clarke County, Lauderdale County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 24, 2011, 11:31 PM CST for Clarke County, Lauderdale County, Mississippi. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Feb 24, 2011, 11:31 PM CST (05:31 UTC)
Expired: Feb 25, 2011, 12:14 AM CST
In force: 43 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Clarke County, MS, Lauderdale County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 125 km from the middle of the area, began a volume at 05:32 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Feb 24, 8:30 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 5.5 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: 58 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 1389 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 420 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

643 
WUUS54 KJAN 250531
SVRJAN
MSC023-075-250630-
/O.NEW.KJAN.SV.W.0049.110225T0531Z-110225T0630Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1131 PM CST THU FEB 24 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLARKE COUNTY IN EAST CENTRAL MISSISSIPPI...
  THIS INCLUDES THE CITY OF QUITMAN...
  SOUTHERN LAUDERDALE COUNTY IN EAST CENTRAL MISSISSIPPI...

* UNTIL 1230 AM CST

* AT 1131 PM CST...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 SAVOY TO 11 MILES WEST OF BARNETT MOVING EAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  STONEWALL...SABLE...GOODWATER...INCREASE...MIDDLETON...DE SOTO...
  SNELL...SYKES AND CRANDALL

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CST FRIDAY MORNING FOR
EAST CENTRAL MISSISSIPPI.

&&

LAT...LON 3189 8846 3184 8866 3183 8890 3222 8892
      3228 8885 3229 8880 3230 8842
TIME...MOT...LOC 0531Z 270DEG 45KT 3227 8871 3205 8902

$$

DHB

3 follow-up statements

011 
WWUS54 KJAN 250557
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1157 PM CST THU FEB 24 2011

MSC023-075-250630-
/O.CON.KJAN.SV.W.0049.000000T0000Z-110225T0630Z/
CLARKE MS-LAUDERDALE MS-
1157 PM CST THU FEB 24 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CST
FOR SOUTHEASTERN LAUDERDALE AND CLARKE COUNTIES...

AT 1157 PM CST...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 6 MILES NORTHEAST OF SNELL TO QUITMAN MOVING EAST AT
50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SYKES
AND CRANDALL

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CST FRIDAY MORNING FOR
EAST CENTRAL MISSISSIPPI.

&&

LAT...LON 3189 8846 3184 8866 3183 8890 3203 8890
      3230 8851 3230 8843
TIME...MOT...LOC 0557Z 270DEG 45KT 3226 8840 3204 8871

$$

DHB

620 
WWUS54 KJAN 250607
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1207 AM CST FRI FEB 25 2011

MSC075-250618-
/O.CAN.KJAN.SV.W.0049.000000T0000Z-110225T0630Z/
LAUDERDALE MS-
1207 AM CST FRI FEB 25 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LAUDERDALE COUNTY
IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CST FRIDAY MORNING FOR
EAST CENTRAL MISSISSIPPI.

LAT...LON 3194 8890 3219 8852 3223 8844 3189 8846
      3184 8866 3183 8890
TIME...MOT...LOC 0608Z 270DEG 45KT 3226 8824 3204 8855

$$

MSC023-250630-
/O.CON.KJAN.SV.W.0049.000000T0000Z-110225T0630Z/
CLARKE MS-
1207 AM CST FRI FEB 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CST
FOR CLARKE COUNTY...

AT 1208 AM CST...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 13 MILES EAST OF SNELL TO SYKES MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CRANDALL

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CST FRIDAY MORNING FOR
EAST CENTRAL MISSISSIPPI.

&&

LAT...LON 3194 8890 3219 8852 3223 8844 3189 8846
      3184 8866 3183 8890
TIME...MOT...LOC 0608Z 270DEG 45KT 3226 8824 3204 8855

$$

DHB

250 
WWUS54 KJAN 250614
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1214 AM CST FRI FEB 25 2011

MSC023-250624-
/O.CAN.KJAN.SV.W.0049.000000T0000Z-110225T0630Z/
CLARKE MS-
1214 AM CST FRI FEB 25 2011

...THE SEVERE THUNDERSTORM WARNING FOR CLARKE COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CST FRIDAY MORNING FOR
EAST CENTRAL MISSISSIPPI.

LAT...LON 3194 8890 3219 8852 3223 8844 3189 8846
      3184 8866 3183 8890
TIME...MOT...LOC 0614Z 270DEG 45KT 3226 8815 3204 8846

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 6:56 PM CST	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower, Washington	64 min
Feb 24, 7:27 PM CST	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	63 min
Feb 24, 7:40 PM CST	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Holmes, Humphreys, Leflore, Sunflower and 1 more	65 min
Feb 24, 7:40 PM CST	Tornado Warning	JAN	Issaquena, Sharkey, Washington	40 min
Feb 24, 8:06 PM CST	Tornado Warning	JAN	Holmes, Humphreys, Yazoo	39 min
Feb 24, 8:09 PM CST	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Warren, Yazoo	66 min
Feb 24, 8:22 PM CST	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Holmes, Montgomery	38 min
Feb 24, 8:42 PM CST	Severe Thunderstorm Warning	JAN	Attala, Holmes, Yazoo	63 min
Feb 24, 8:54 PM CST	Severe Thunderstorm Warning	JAN	Carroll, Choctaw, Clay, Montgomery, Oktibbeha, Webster and 1 more	66 min
Feb 24, 9:00 PM CST	Severe Thunderstorm Warning	JAN	Leake, Madison	75 min
Feb 24, 9:08 PM CST	Tornado Warning	JAN	Attala, Choctaw, Winston	30 min
Feb 24, 9:42 PM CST	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin, Scott	33 min
Feb 24, 9:45 PM CST	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Noxubee, Oktibbeha, Winston	75 min
Feb 24, 9:53 PM CST	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Newton, Scott	67 min
Feb 24, 10:40 PM CST	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Newton, Scott	65 min
Feb 24, 10:48 PM CST	Severe Thunderstorm Warning	JAN	Jasper, Simpson, Smith	57 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2011 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.