Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 7, NWS Jackson, MS

March 17, 2021Clarke County, Lauderdale County, Mississippi

NWS Jackson, MS issued this tornado warning at Mar 17, 2021, 12:22 PM CDT for Clarke County, Lauderdale County, Mississippi. It was in force for 54 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: Mar 17, 2021, 12:22 PM CDT (17:22 UTC)
Expired: Mar 17, 2021, 1:16 PM CDT
In force: 54 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Clarke County, MS, Lauderdale County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 134 km from the middle of the area, began a volume at 17:23 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
Mar 17, 11:36 AM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 5.4 hours before the alert went out and 143 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.

459 
WFUS54 KJAN 171722
TORJAN
MSC023-075-171830-
/O.NEW.KJAN.TO.W.0007.210317T1722Z-210317T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
1222 PM CDT Wed Mar 17 2021

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northwestern Clarke County in east central Mississippi...
  Southeastern Lauderdale County in east central Mississippi...

* Until 130 PM CDT.
    
* At 1222 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near De Soto, or near Quitman, moving northeast
  at 35 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...
  Quitman around 1235 PM CDT.
  Sykes around 1250 PM CDT.
  Middleton around 1255 PM CDT.
  Snell and Increase around 105 PM CDT.
  Alamucha around 120 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 3235 8841 3216 8844 3190 8882 3201 8890
      3244 8841
TIME...MOT...LOC 1722Z 223DEG 29KT 3197 8879 

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

$$

TW

3 follow-up statements

982 
WWUS54 KJAN 171737
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1237 PM CDT Wed Mar 17 2021

MSC023-075-171830-
/O.CON.KJAN.TO.W.0007.000000T0000Z-210317T1830Z/
Clarke MS-Lauderdale MS-
1237 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR NORTHERN
CLARKE AND SOUTHEASTERN LAUDERDALE COUNTIES...
    
At 1237 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Quitman, moving northeast at 30 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...
  Sykes around 1250 PM CDT.
  Middleton around 1255 PM CDT.
  Snell and Increase around 110 PM CDT.
  Alamucha around 125 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 3235 8841 3216 8844 3196 8873 3209 8881
      3244 8841
TIME...MOT...LOC 1737Z 225DEG 27KT 3203 8870 

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

$$

TW

347 
WWUS54 KJAN 171755
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1255 PM CDT Wed Mar 17 2021

MSC023-075-171830-
/O.CON.KJAN.TO.W.0007.000000T0000Z-210317T1830Z/
Clarke MS-Lauderdale MS-
1255 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR
NORTHEASTERN CLARKE AND SOUTHEASTERN LAUDERDALE COUNTIES...
    
At 1255 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Middleton, or 10 miles northeast of Quitman, moving
northeast at 35 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...
  Snell around 105 PM CDT.
  Increase around 110 PM CDT.
  Alamucha around 125 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 3235 8841 3216 8844 3206 8858 3220 8868
      3244 8841
TIME...MOT...LOC 1755Z 223DEG 29KT 3214 8858 

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

$$

TW

385 
WWUS54 KJAN 171816
SVSJAN

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

MSC023-075-171826-
/O.CAN.KJAN.TO.W.0007.000000T0000Z-210317T1830Z/
Clarke MS-Lauderdale MS-
116 PM CDT Wed Mar 17 2021

...THE TORNADO WARNING FOR NORTHEASTERN CLARKE AND SOUTHEASTERN
LAUDERDALE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A Tornado Watch remains in effect until 700 PM CDT for east central
Mississippi.

LAT...LON 3235 8841 3216 8844 3206 8858 3220 8868
      3244 8841
TIME...MOT...LOC 1815Z 223DEG 29KT 3227 8844 

$$

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, 12:50 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, 5:55 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Choctaw, Holmes, Leake, Montgomery, Neshoba and 2 more	65 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

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.