Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 26, NWS Jackson, MS

March 17, 20218 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 17, 2021, 5:55 PM CDT for 8 counties in Mississippi. It was in force for 65 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: Mar 17, 2021, 5:55 PM CDT (22:55 UTC)
Expired: Mar 17, 2021, 7:00 PM CDT
In force: 65 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Attala County, MS, Choctaw County, MS, Holmes County, MS, Leake County, MS, Montgomery County, MS, Neshoba County, MS, Webster County, MS, Winston County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 106 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
Mar 17, 6:18 PM CDT	TSTM WND DMG	Carthage, MS	SEVERAL TREES AND LIMBS DOWNED ON ROADS ACROSS LEAKE COUNTY.
Mar 17, 6:23 PM CDT	TSTM WND DMG	Kosciusko, MS	SCATTERED TREES DOWNED AROUND ATTALA COUNTY.
Mar 17, 6:32 PM CDT	TSTM WND DMG	6 Ene Providence, MS	SIX TREES DOWNED AND DAMAGE TO THE ROOF OF A HOME ALONG MS HIGHWAY 14 NEAR THE WINSTON/ATTALA COUNTY LINE.
Mar 17, 6:45 PM CDT	TSTM WND DMG	1 Nnw Ackerman, MS	A LARGE TIN SHED WAS DESTROYED. REPORT RELAYED VIA SOCIAL MEDIA.

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 17, 11:36 AM CDT	Tornado Watch PDS	SPC	7 hr
Mar 17, 12:57 PM CDT	Tornado Watch PDS	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.9 hours before the alert went out and 106 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: 687 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 713 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 218 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

As transmitted.

965 
WUUS54 KJAN 172255
SVRJAN
MSC007-019-051-079-097-099-155-159-180000-
/O.NEW.KJAN.SV.W.0026.210317T2255Z-210318T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
555 PM CDT Wed Mar 17 2021

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Leake County in central Mississippi...
  Choctaw County in central Mississippi...
  Southeastern Holmes County in central Mississippi...
  Attala County in central Mississippi...
  Western Winston County in east central Mississippi...
  South central Webster County in north central Mississippi...
  Southeastern Montgomery County in north central Mississippi...
  Northwestern Neshoba County in east central Mississippi...

* Until 700 PM CDT.

* At 555 PM CDT, severe thunderstorms were located along a line
  extending from near Franklin to Cameron to 6 miles southwest of
  Farmhaven, moving northeast at 65 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Durant, Newport and Thomastown around 605 PM CDT.
  Mcadams around 610 PM CDT.
  Kosciusko, Carthage, Possumneck and Singleton around 615 PM CDT.
  Smyrna and Hesterville around 620 PM CDT.
  Renfroe and Zama around 625 PM CDT.
  Edinburg, Pearl River and Poplar Creek around 630 PM CDT.
  Burnside around 640 PM CDT.
  Louisville, Ackerman, Stallo, Mcmillan and Chester around 645 PM 
  CDT.

Other locations impacted by these severe thunderstorms include
Noxapater, Ethel, Sallis, Redwater, French Camp, West, Mccool and
Weir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A Tornado Watch remains in effect until 700 PM CDT for central,
northeastern and east central Mississippi. A Tornado Watch also
remains in effect until 700 PM CDT for central and north central
Mississippi.

LAT...LON 3331 8909 3329 8909 3325 8903 3285 8902
      3263 8973 3288 8973 3288 8997 3295 9016
      3322 8978 3322 8975 3329 8970 3329 8965
      3333 8965 3356 8932
TIME...MOT...LOC 2255Z 238DEG 55KT 3302 9005 3283 8987 3257 8986 

HAIL...<.75IN
WIND...60MPH
 
$$

TW

4 follow-up statements

282 
WWUS54 KJAN 172314
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
614 PM CDT Wed Mar 17 2021

MSC051-172324-
/O.CAN.KJAN.SV.W.0026.000000T0000Z-210318T0000Z/
Holmes MS-
614 PM CDT Wed Mar 17 2021

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

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM CDT for central,
northeastern and east central Mississippi. A Tornado Watch also
remains in effect until 700 PM CDT for central and north central
Mississippi.

LAT...LON 3329 8909 3325 8903 3285 8902 3266 8968
      3296 8971 3302 8975 3307 8982 3311 8982
      3328 8970 3329 8965 3333 8965 3356 8932
TIME...MOT...LOC 2314Z 236DEG 55KT 3320 8976 3301 8958 3275 8957 

$$

MSC007-019-079-097-099-155-159-180000-
/O.CON.KJAN.SV.W.0026.000000T0000Z-210318T0000Z/
Leake MS-Choctaw MS-Attala MS-Winston MS-Webster MS-Montgomery MS-
Neshoba MS-
614 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHERN LEAKE...CHOCTAW...ATTALA...WESTERN WINSTON...SOUTH
CENTRAL WEBSTER...SOUTHEASTERN MONTGOMERY AND NORTHWESTERN NESHOBA
COUNTIES...

At 614 PM CDT, severe thunderstorms were located along a line
extending from near Possumneck to near Kosciusko to near Carthage,
moving northeast at 65 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Smyrna around 620 PM CDT.
  Edinburg around 625 PM CDT.
  Poplar Creek and Zama around 630 PM CDT.
  Stallo and Mcmillan around 640 PM CDT.
  Ackerman and Chester around 645 PM CDT.
  Louisville around 650 PM CDT.

Other locations impacted by these severe thunderstorms include
Noxapater, Mccool, Ethel, Redwater, French Camp and Weir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A Tornado Watch remains in effect until 700 PM CDT for central,
northeastern and east central Mississippi. A Tornado Watch also
remains in effect until 700 PM CDT for central and north central
Mississippi.

LAT...LON 3329 8909 3325 8903 3285 8902 3266 8968
      3296 8971 3302 8975 3307 8982 3311 8982
      3328 8970 3329 8965 3333 8965 3356 8932
TIME...MOT...LOC 2314Z 236DEG 55KT 3320 8976 3301 8958 3275 8957 

HAIL...<.75IN
WIND...60MPH
 
$$

TW

737 
WWUS54 KJAN 172326
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
626 PM CDT Wed Mar 17 2021

MSC007-019-079-097-099-155-159-180000-
/O.CON.KJAN.SV.W.0026.000000T0000Z-210318T0000Z/
Leake MS-Choctaw MS-Attala MS-Winston MS-Webster MS-Montgomery MS-
Neshoba MS-
626 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHEASTERN LEAKE...CHOCTAW...EASTERN ATTALA...WESTERN
WINSTON...SOUTH CENTRAL WEBSTER...SOUTHEASTERN MONTGOMERY AND
NORTHWESTERN NESHOBA COUNTIES...

At 626 PM CDT, severe thunderstorms were located along a line
extending from near Poplar Creek to 8 miles north of Zama to near
Renfroe, moving northeast at 65 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Mcmillan around 640 PM CDT.
  Louisville, Ackerman, Stallo and Chester around 645 PM CDT.

Other locations impacted by these severe thunderstorms include
Noxapater, Mccool, Ethel, French Camp and Weir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A Tornado Watch remains in effect until 700 PM CDT for central,
northeastern and east central Mississippi. A Tornado Watch also
remains in effect until 700 PM CDT for north central Mississippi.

LAT...LON 3329 8909 3325 8903 3285 8902 3272 8948
      3313 8956 3328 8970 3329 8965 3333 8965
      3356 8932
TIME...MOT...LOC 2326Z 238DEG 55KT 3329 8959 3310 8941 3284 8940 

HAIL...<.75IN
WIND...60MPH
 
$$

TW

946 
WWUS54 KJAN 172339
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
639 PM CDT Wed Mar 17 2021

MSC007-079-097-172349-
/O.CAN.KJAN.SV.W.0026.000000T0000Z-210318T0000Z/
Leake MS-Attala MS-Montgomery MS-
639 PM CDT Wed Mar 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LEAKE...EASTERN
ATTALA AND SOUTHEASTERN MONTGOMERY COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM CDT for central,
northeastern and east central Mississippi. A Tornado Watch also
remains in effect until 700 PM CDT for north central Mississippi.

LAT...LON 3329 8909 3325 8903 3285 8902 3277 8932
      3328 8932 3329 8945 3343 8945 3343 8942
      3346 8938 3346 8946 3356 8932
TIME...MOT...LOC 2339Z 238DEG 48KT 3346 8942 3322 8922 3283 8917 

$$

MSC019-099-155-159-180000-
/O.CON.KJAN.SV.W.0026.000000T0000Z-210318T0000Z/
Choctaw MS-Winston MS-Webster MS-Neshoba MS-
639 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR CHOCTAW...WESTERN WINSTON...SOUTH CENTRAL WEBSTER AND
NORTHWESTERN NESHOBA COUNTIES...

At 639 PM CDT, severe thunderstorms were located along a line
extending from 8 miles east of Kilmichael to 7 miles southwest of
Ackerman to near Burnside, moving northeast at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Louisville and Ackerman around 645 PM CDT.

Other locations impacted by these severe thunderstorms include
Noxapater, French Camp and Weir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A Tornado Watch remains in effect until 700 PM CDT for central,
northeastern and east central Mississippi. A Tornado Watch also
remains in effect until 700 PM CDT for north central Mississippi.

LAT...LON 3329 8909 3325 8903 3285 8902 3277 8932
      3328 8932 3329 8945 3343 8945 3343 8942
      3346 8938 3346 8946 3356 8932
TIME...MOT...LOC 2339Z 238DEG 48KT 3346 8942 3322 8922 3283 8917 

HAIL...<.75IN
WIND...60MPH
 
$$

TW

139 
WWUS54 KJAN 172358
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
658 PM CDT Wed Mar 17 2021

MSC019-099-155-159-180008-
/O.EXP.KJAN.SV.W.0026.000000T0000Z-210318T0000Z/
Choctaw MS-Winston MS-Webster MS-Neshoba MS-
658 PM CDT Wed Mar 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR CHOCTAW...WESTERN WINSTON...
SOUTH CENTRAL WEBSTER AND NORTHWESTERN NESHOBA COUNTIES WILL EXPIRE
AT 700 PM CDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 300 AM CDT for central, north
central, northeastern and east central Mississippi.

LAT...LON 3329 8909 3325 8903 3285 8902 3277 8932
      3328 8932 3329 8945 3343 8945 3343 8942
      3346 8938 3346 8946 3356 8932
TIME...MOT...LOC 2358Z 238DEG 55KT 3361 8913 3337 8893 3298 8888 

$$

TW

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 16, 7:01 PM CDT	Tornado Warning	JAN	Copiah, Lawrence, Simpson	31 min
Mar 16, 7:02 PM CDT	Severe Thunderstorm Warning	JAN	Attala	36 min
Mar 16, 7:32 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Simpson	58 min
Mar 16, 7:33 PM CDT	Special Weather Statement	JAN	Choctaw	27 min
Mar 16, 8:29 PM CDT	Special Weather Statement	JAN	Simpson	46 min
Mar 16, 8:49 PM CDT	Special Weather Statement	JAN	Kemper, Newton	56 min
Mar 16, 9:50 PM CDT	Special Weather Statement	JAN	Lauderdale	25 min
Mar 17, 6:05 AM CDT	Tornado Warning	JAN	Bolivar	40 min
Mar 17, 6:44 AM CDT	Tornado Warning	JAN	Bolivar	19 min
Mar 17, 11:37 AM CDT	Special Weather Statement	JAN	Jones	38 min
Mar 17, 12:07 PM CDT	Tornado Warning Tornado observed	JAN	Clarke	53 min
Mar 17, 12:22 PM CDT	Tornado Warning	JAN	Clarke, Lauderdale	54 min
Mar 17, 12:50 PM CDT	Tornado Warning	JAN	Copiah, Lawrence, Lincoln	55 min
Mar 17, 1:00 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Noxubee	45 min
Mar 17, 1:28 PM CDT	Tornado Warning	JAN	Jones	15 min
Mar 17, 1:45 PM CDT	Tornado Warning	JAN	Jones	21 min
Mar 17, 3:33 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Lawrence	42 min
Mar 17, 4:10 PM CDT	Tornado Warning	JAN	Adams, Franklin	50 min
Mar 17, 4:34 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Hinds, Jefferson, Warren	56 min
Mar 17, 4:45 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Washington	60 min
Mar 17, 4:52 PM CDT	Tornado Warning	JAN	Copiah, Jefferson, Lincoln	37 min
Mar 17, 4:56 PM CDT	Tornado Warning	JAN	Bolivar, Washington	29 min
Mar 17, 5:15 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin, Yazoo	64 min
Mar 17, 5:20 PM CDT	Tornado Warning	JAN	Jasper, Smith	55 min
Mar 17, 5:45 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence, Marion	34 min
Mar 17, 6:05 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba, Newton, Scott	55 min
Mar 17, 6:12 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Simpson, Smith	48 min
Mar 17, 6:13 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	47 min
Mar 17, 6:28 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Jones	48 min
Mar 17, 6:42 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Clay, Kemper, Lowndes, Neshoba, Noxubee and 3 more	76 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021 Every severe thunderstorm warning in 2021

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.