Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 2, NWS Jackson, MS

January 1, 20215 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jan 1, 2021, 12:30 AM CST for 5 counties in Mississippi. It was in force for 60 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: Jan 1, 2021, 12:30 AM CST (06:30 UTC)
Expired: Jan 1, 2021, 1:30 AM CST
In force: 60 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Attala County, MS, Hinds County, MS, Leake County, MS, Madison County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 61 km from the middle of the area, began a volume at 06:32 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 nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 6.5 hours before the alert went out and 58 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: 90 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 305 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

663 
WUUS54 KJAN 010630
SVRJAN
MSC007-049-079-089-163-010730-
/O.NEW.KJAN.SV.W.0002.210101T0630Z-210101T0730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
1230 AM CST Fri Jan 1 2021

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Northwestern Leake County in central Mississippi...
  Southwestern Attala County in central Mississippi...
  Southeastern Yazoo County in central Mississippi...
  North central Hinds County in central Mississippi...
  Madison County in central Mississippi...

* Until 130 AM CST.

* At 1230 AM CST, a severe thunderstorm was located near Brownsville,
  or 12 miles north of Clinton, moving northeast at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Flora and Pocahontas around 1235 AM CST.
  Annandale around 1240 AM CST.
  Canton around 1250 AM CST.
  Way, Vaughan and Sharon around 100 AM CST.
  Cameron and Camden around 110 AM CST.
  Newport around 120 AM CST.
  Thomastown around 125 AM CST.

Other locations impacted by this severe thunderstorm include Sallis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3274 8956 3232 9038 3255 9050 3289 8998
      3288 8997 3289 8996 3290 8994 3291 8993
      3291 8992 3292 8992 3293 8990 3294 8990
      3303 8976
TIME...MOT...LOC 0630Z 236DEG 49KT 3251 9041 

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

JNE

2 follow-up statements

411 
WWUS54 KJAN 010652
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1252 AM CST Fri Jan 1 2021

MSC049-010701-
/O.CAN.KJAN.SV.W.0002.000000T0000Z-210101T0730Z/
Hinds MS-
1252 AM CST Fri Jan 1 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL HINDS COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3274 8956 3240 9024 3249 9024 3249 9031
      3264 9036 3289 8998 3288 8997 3289 8996
      3290 8994 3292 8992 3293 8990 3294 8990
      3303 8976
TIME...MOT...LOC 0651Z 236DEG 49KT 3267 9013 

$$

MSC007-079-089-163-010730-
/O.CON.KJAN.SV.W.0002.000000T0000Z-210101T0730Z/
Leake MS-Attala MS-Yazoo MS-Madison MS-
1252 AM CST Fri Jan 1 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM CST
FOR NORTHWESTERN LEAKE...SOUTHWESTERN ATTALA...SOUTHEASTERN YAZOO AND
MADISON COUNTIES...

At 1251 AM CST, a severe thunderstorm was located near Canton, moving
northeast at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

This severe storm will be near...
  Way, Vaughan and Sharon around 100 AM CST.
  Cameron and Camden around 110 AM CST.
  Newport and Thomastown around 120 AM CST.

Other locations impacted by this severe thunderstorm include Sallis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3274 8956 3240 9024 3249 9024 3249 9031
      3264 9036 3289 8998 3288 8997 3289 8996
      3290 8994 3292 8992 3293 8990 3294 8990
      3303 8976
TIME...MOT...LOC 0651Z 236DEG 49KT 3267 9013 

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

JNE

005 
WWUS54 KJAN 010709
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
109 AM CST Fri Jan 1 2021

MSC007-079-089-163-010730-
/O.CON.KJAN.SV.W.0002.000000T0000Z-210101T0730Z/
Leake MS-Attala MS-Yazoo MS-Madison MS-
109 AM CST Fri Jan 1 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM CST
FOR NORTHWESTERN LEAKE...SOUTHWESTERN ATTALA...EAST CENTRAL YAZOO AND
MADISON COUNTIES...

At 108 AM CST, a severe thunderstorm was located over Cameron, or 15
miles northeast of Canton, moving northeast at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

This severe storm will be near...
  Newport around 120 AM CST.
  Thomastown around 125 AM CST.

Other locations impacted by this severe thunderstorm include Sallis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3274 8956 3247 9010 3272 9024 3278 9015
      3289 8998 3288 8997 3289 8996 3290 8994
      3292 8992 3293 8990 3294 8990 3303 8976
TIME...MOT...LOC 0708Z 236DEG 49KT 3281 8989 

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

JNE

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 31, 8:31 PM CST	Special Weather Statement	JAN	Jones	29 min
Dec 31, 8:42 PM CST	Severe Thunderstorm Warning	JAN	Jasper, Jones, Smith	28 min
Dec 31, 10:44 PM CST	Special Weather Statement	JAN	Claiborne, Franklin, Jefferson	46 min
Jan 1, 2:34 AM CST	Special Weather Statement	JAN	Choctaw, Neshoba, Winston	26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.