Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 38, NWS Jackson, MS

April 4, 2011Jefferson Davis County, Lawrence County, Mississippi

NWS Jackson, MS issued this tornado warning at Apr 4, 2011, 5:56 PM CDT for Jefferson Davis County, Lawrence County, Mississippi. It was in force for 64 min. 4 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 4, 2011, 5:56 PM CDT (22:56 UTC)
Expired: Apr 4, 2011, 7:00 PM CDT
In force: 64 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Jefferson Davis County, MS, Lawrence County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 90 km from the middle of the area, began a volume at 22:58 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 4, 6:05 PM CDT	TSTM WND DMG	Topeka, MS	NUMEROUS TREES DOWN ACROSS THE COUNTY...MAINLY NEAR TOPEKA
Apr 4, 6:20 PM CDT	TSTM WND DMG	Society Hill, MS	TREES AND POWER LINES DOWNED
Apr 4, 6:25 PM CDT	TSTM WND DMG	5 S Prentiss, MS	NUMEROUS TREE DOWN ACROSS THE SOUTHERN PART OF THE COUNTY
Apr 4, 6:25 PM CDT	TSTM WND DMG	7 S Prentiss, MS	TREE DOWN ON A MOBILE HOME ON RIVER ROAD. EXACT LOCATION ESTIMATED

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 4, 10:53 AM CDT	Tornado Watch	SPC	7 hr
Apr 4, 5:28 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.9 hours before the alert went out and 96 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: 1411 J/kg
Mixed-layer CIN: -115 J/kg
Mixed-layer LCL: 704 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 223 m²/s²
0-3 km storm-relative helicity: 425 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

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

806 
WFUS54 KJAN 042256
TORJAN
MSC065-077-050000-
/O.NEW.KJAN.TO.W.0038.110404T2256Z-110405T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
556 PM CDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI...
  SOUTHERN LAWRENCE COUNTY IN SOUTH CENTRAL MISSISSIPPI...

* UNTIL 700 PM CDT

* AT 556 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR TOPEKA
  MOVING EAST AT 50 MPH.

* THE TORNADO WILL BE NEAR...
  ROBINWOOD BY 605 PM CDT...
  TILTON AND ARM BY 610 PM CDT...
  OAK VALE...SOCIETY HILL AND PROGRESS BY 615 PM CDT...
  CARSON BY 625 PM CDT...
  MELBA BY 635 PM CDT...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT MONDAY EVENING FOR
NORTHEAST LOUISIANA AND MISSISSIPPI. A TORNADO WATCH ALSO REMAINS IN
EFFECT UNTIL 100 AM CDT TUESDAY MORNING FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3150 9024 3162 8975 3161 8973 3158 8969
      3156 8961 3151 8958 3144 8958 3144 8982
      3139 8982 3140 9003 3136 9004 3135 9016
      3136 9024
TIME...MOT...LOC 2256Z 258DEG 44KT 3141 9020

$$

DHB

3 follow-up statements

288 
WWUS54 KJAN 042310
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
610 PM CDT MON APR 4 2011

MSC065-077-050000-
/O.CON.KJAN.TO.W.0038.000000T0000Z-110405T0000Z/
LAWRENCE MS-JEFFERSON DAVIS MS-
610 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR SOUTHERN
JEFFERSON DAVIS AND SOUTHEASTERN LAWRENCE COUNTIES...

AT 610 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR TILTON MOVING EAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  SOCIETY HILL AND PROGRESS BY 615 PM CDT...
  CARSON BY 625 PM CDT...
  BASSFIELD BY 630 PM CDT...
  MELBA BY 635 PM CDT...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3139 9007 3150 9008 3162 8975 3157 8967
      3155 8962 3151 8958 3144 8958 3144 8982
      3139 8982 3140 9003
TIME...MOT...LOC 2310Z 258DEG 44KT 3144 9000

$$

DHB

716 
WWUS54 KJAN 042325
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
625 PM CDT MON APR 4 2011

MSC077-042335-
/O.CAN.KJAN.TO.W.0038.000000T0000Z-110405T0000Z/
LAWRENCE MS-
625 PM CDT MON APR 4 2011

...THE TORNADO WARNING FOR SOUTHEASTERN LAWRENCE COUNTY IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHEASTERN MISSISSIPPI.

LAT...LON 3139 8994 3155 8994 3162 8977 3162 8976
      3162 8974 3151 8958 3144 8959 3144 8982
      3139 8982
TIME...MOT...LOC 2325Z 258DEG 44KT 3148 8979

$$

MSC065-050000-
/O.CON.KJAN.TO.W.0038.000000T0000Z-110405T0000Z/
JEFFERSON DAVIS MS-
625 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR SOUTHERN
JEFFERSON DAVIS COUNTY...

AT 625 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR SOCIETY HILL MOVING EAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  BASSFIELD BY 630 PM CDT...
  MELBA BY 635 PM CDT...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3139 8994 3155 8994 3162 8977 3162 8976
      3162 8974 3151 8958 3144 8959 3144 8982
      3139 8982
TIME...MOT...LOC 2325Z 258DEG 44KT 3148 8979

$$

DHB

838 
WWUS54 KJAN 042337
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
637 PM CDT MON APR 4 2011

MSC065-050000-
/O.CON.KJAN.TO.W.0038.000000T0000Z-110405T0000Z/
JEFFERSON DAVIS MS-
637 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR EAST
CENTRAL JEFFERSON DAVIS COUNTY...

AT 637 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR MELBA MOVING EAST AT 50 MPH.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHEASTERN MISSISSIPPI.

&&

LAT...LON 3160 8973 3159 8970 3150 8959 3149 8958
      3144 8959 3143 8971 3144 8975
TIME...MOT...LOC 2337Z 258DEG 44KT 3151 8962

$$

DHB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 12:05 AM CDT	Wind Advisory	JAN	Adams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 41 more	22 hr
Apr 4, 10:04 AM CDT	River Flood Warning	JAN	Clay	11 hr
Apr 4, 11:01 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower, Washington	59 min
Apr 4, 11:42 AM CDT	Severe Thunderstorm Warning	JAN	Washington	63 min
Apr 4, 11:58 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Leflore, Sunflower, Washington	62 min
Apr 4, 12:25 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Holmes, Humphreys, Leflore, Sunflower and 1 more	65 min
Apr 4, 1:05 PM CDT	Special Weather Statement	JAN	Bolivar, Humphreys, Sharkey, Sunflower, Washington	25 min
Apr 4, 1:21 PM CDT	Special Weather Statement	JAN	Issaquena	29 min
Apr 4, 1:27 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada, Montgomery	29 min
Apr 4, 1:54 PM CDT	Special Weather Statement	JAN	Holmes	41 min
Apr 4, 2:15 PM CDT	Special Weather Statement	JAN	Lowndes	30 min
Apr 4, 2:24 PM CDT	Special Weather Statement	JAN	Attala, Carroll, Choctaw, Grenada, Montgomery, Webster	56 min
Apr 4, 2:53 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Washington	52 min
Apr 4, 2:56 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Warren	33 min
Apr 4, 3:20 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Leflore, Sunflower	24 min
Apr 4, 3:25 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	35 min
Apr 4, 3:27 PM CDT	Special Weather Statement	JAN	Lowndes, Oktibbeha	28 min
Apr 4, 3:34 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	56 min
Apr 4, 3:35 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Warren	55 min
Apr 4, 3:43 PM CDT	Tornado Warning	JAN	Claiborne	48 min
Apr 4, 3:53 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Choctaw, Winston	67 min
Apr 4, 3:54 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Warren	51 min
Apr 4, 3:58 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Jefferson	62 min
Apr 4, 4:07 PM CDT	Tornado Warning	JAN	Claiborne, Warren	53 min
Apr 4, 4:14 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Yazoo	46 min
Apr 4, 4:27 PM CDT	Tornado Warning	JAN	Hinds, Madison	48 min
Apr 4, 4:28 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes	32 min
Apr 4, 4:36 PM CDT	Flash Flood Warning	JAN	Hinds, Madison, Rankin	3 hr
Apr 4, 4:39 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Franklin, Jefferson, Lincoln	66 min
Apr 4, 4:40 PM CDT	Flash Flood Warning	JAN	Attala, Choctaw, Clay, Lowndes, Noxubee, Oktibbeha and 1 more	2 hr
Apr 4, 4:57 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison	48 min
Apr 4, 5:02 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee, Oktibbeha, Winston	58 min
Apr 4, 5:06 PM CDT	Tornado Warning	JAN	Rankin	54 min
Apr 4, 5:16 PM CDT	Flash Flood Warning	JAN	Attala, Leake, Madison	119 min
Apr 4, 5:21 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson	39 min
Apr 4, 5:34 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba, Winston	31 min
Apr 4, 5:39 PM CDT	Tornado Warning	JAN	Rankin, Simpson, Smith	51 min
Apr 4, 5:48 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Lincoln	42 min
Apr 4, 5:50 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Noxubee, Winston	55 min
Apr 4, 6:03 PM CDT	Special Weather Statement	JAN	Lauderdale, Newton, Scott	42 min
Apr 4, 6:07 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Simpson, Smith	38 min
Apr 4, 6:19 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Newton, Scott, Smith	41 min
Apr 4, 6:23 PM CDT	Tornado Warning	JAN	Covington, Forrest, Lamar, Marion	27 min
Apr 4, 6:28 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jones	62 min
Apr 4, 6:39 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	51 min
Apr 4, 6:41 PM CDT	Flash Flood Warning	JAN	Lowndes	3 hr
Apr 4, 6:51 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	39 min
Apr 4, 6:51 PM CDT	Severe Thunderstorm Warning	JAN	Marion	39 min
Apr 4, 6:52 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Jones, Lamar	68 min

Nearby

Tornado Warnings in Mississippi, 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.