Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 29, NWS Jackson, MS

April 7, 20215 counties in Mississippi

NWS Jackson, MS issued this tornado warning at Apr 7, 2021, 8:49 PM CDT for 5 counties in Mississippi. It was in force for 56 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: Apr 7, 2021, 8:49 PM CDT (01:49 UTC)
Expired: Apr 7, 2021, 9:45 PM CDT
In force: 56 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Humphreys County, MS, Issaquena County, MS, Sharkey County, MS, Sunflower County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 132 km from the middle of the area, began a volume at 01:50 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 7, 8:50 PM CDT	TSTM WND DMG	1 N Glen Allan, MS	TWO POWER POLES DOWN AND A TREE DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.8 hours before the alert went out and 123 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: 652 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 1178 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 256 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted.

016 
WFUS54 KJAN 080149
TORJAN
MSC053-055-125-133-151-080245-
/O.NEW.KJAN.TO.W.0029.210408T0149Z-210408T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
849 PM CDT Wed Apr 7 2021

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Southern Sunflower County in northwestern Mississippi...
  Southeastern Washington County in northwestern Mississippi...
  North central Issaquena County in west central Mississippi...
  Northwestern Humphreys County in central Mississippi...
  Northern Sharkey County in west central Mississippi...

* Until 945 PM CDT.
    
* At 848 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Avon, moving northeast at 45 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Hollandale and Estill around 900 PM CDT.
  Darlove and Tribbett around 910 PM CDT.
  Isola around 920 PM CDT.
  Indianola and Inverness around 925 PM CDT.
  Moorhead around 935 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Arcola.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3316 9045 3293 9106 3323 9108 3325 9105
      3327 9104 3329 9105 3354 9045
TIME...MOT...LOC 0148Z 244DEG 41KT 3319 9104 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

TW

4 follow-up statements

138 
WWUS54 KJAN 080207
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
907 PM CDT Wed Apr 7 2021

MSC055-080217-
/O.CAN.KJAN.TO.W.0029.000000T0000Z-210408T0245Z/
Issaquena MS-
907 PM CDT Wed Apr 7 2021

...THE TORNADO WARNING FOR NORTH CENTRAL ISSAQUENA COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3316 9045 3304 9078 3336 9088 3354 9045
TIME...MOT...LOC 0207Z 243DEG 41KT 3328 9081 

$$

MSC053-125-133-151-080245-
/O.CON.KJAN.TO.W.0029.000000T0000Z-210408T0245Z/
Sunflower MS-Washington MS-Humphreys MS-Sharkey MS-
907 PM CDT Wed Apr 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTHERN
SUNFLOWER...SOUTHEASTERN WASHINGTON...NORTHWESTERN HUMPHREYS AND
NORTHEASTERN SHARKEY COUNTIES...
    
At 907 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Darlove, or 7 miles north of Hollandale, moving
northeast at 45 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Isola around 920 PM CDT.
  Indianola and Inverness around 925 PM CDT.
  Moorhead around 935 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3316 9045 3304 9078 3336 9088 3354 9045
TIME...MOT...LOC 0207Z 243DEG 41KT 3328 9081 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

TW

308 
WWUS54 KJAN 080215
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
915 PM CDT Wed Apr 7 2021

MSC125-151-080225-
/O.CAN.KJAN.TO.W.0029.000000T0000Z-210408T0245Z/
Washington MS-Sharkey MS-
915 PM CDT Wed Apr 7 2021

...THE TORNADO WARNING FOR SOUTHEASTERN WASHINGTON AND NORTHEASTERN
SHARKEY COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3316 9045 3309 9066 3310 9066 3310 9068
      3311 9068 3312 9070 3314 9070 3320 9068
      3323 9073 3327 9073 3327 9076 3341 9076
      3354 9045
TIME...MOT...LOC 0215Z 244DEG 41KT 3332 9071 

$$

MSC053-133-080245-
/O.CON.KJAN.TO.W.0029.000000T0000Z-210408T0245Z/
Sunflower MS-Humphreys MS-
915 PM CDT Wed Apr 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTHERN
SUNFLOWER AND NORTHWESTERN HUMPHREYS COUNTIES...
    
At 915 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Tribbett, or 9 miles southwest of Indianola, moving
northeast at 45 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Isola around 920 PM CDT.
  Indianola and Inverness around 925 PM CDT.
  Moorhead around 935 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3316 9045 3309 9066 3310 9066 3310 9068
      3311 9068 3312 9070 3314 9070 3320 9068
      3323 9073 3327 9073 3327 9076 3341 9076
      3354 9045
TIME...MOT...LOC 0215Z 244DEG 41KT 3332 9071 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

TW

276 
WWUS54 KJAN 080229
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
929 PM CDT Wed Apr 7 2021

MSC053-133-080245-
/O.CON.KJAN.TO.W.0029.000000T0000Z-210408T0245Z/
Sunflower MS-Humphreys MS-
929 PM CDT Wed Apr 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
SOUTHEASTERN SUNFLOWER AND NORTH CENTRAL HUMPHREYS COUNTIES...
    
At 929 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Moorhead, moving northeast at 50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Sunflower and north central Humphreys Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3316 9045 3313 9054 3348 9059 3354 9045
TIME...MOT...LOC 0229Z 243DEG 42KT 3341 9048 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

TW

187 
WWUS54 KJAN 080236
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
936 PM CDT Wed Apr 7 2021

MSC053-133-080246-
/O.EXP.KJAN.TO.W.0029.000000T0000Z-210408T0245Z/
Sunflower MS-Humphreys MS-
936 PM CDT Wed Apr 7 2021

...THE TORNADO WARNING FOR SOUTHEASTERN SUNFLOWER AND NORTH CENTRAL
HUMPHREYS COUNTIES WILL EXPIRE AT 945 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3316 9045 3313 9054 3348 9059 3354 9045
TIME...MOT...LOC 0236Z 244DEG 41KT 3345 9039 

$$

TW

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 8:05 PM CDT	Tornado Warning	JAN	Washington	55 min
Apr 7, 8:41 PM CDT	Special Weather Statement	JAN	Attala	64 min
Apr 7, 9:24 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Humphreys, Leflore	40 min
Apr 7, 9:43 PM CDT	Severe Thunderstorm Warning	JAN	Adams	47 min
Apr 8, 6:11 AM CDT	Dense Fog Advisory	JAN	Adams, Claiborne, Copiah, Franklin, Hinds, Issaquena and 9 more	3 hr
Apr 8, 10:47 AM CDT	River Flood Warning	JAN	Madison, Yazoo	11 days
Apr 8, 10:47 AM CDT	River Flood Warning	JAN	Hinds, Warren	11 days
Apr 8, 10:49 AM CDT	River Flood Warning	JAN	Carroll, Leflore	47 hr
Apr 8, 10:54 AM CDT	River Flood Warning	JAN	Bolivar, Washington	50 hr
Apr 8, 10:57 AM CDT	River Flood Warning	JAN	Issaquena, Washington	5 days

Nearby

Tornado Warnings in Mississippi, 2021 Every tornado warning in 2021 Tornadoes 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.