Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 5, NWS Jackson, MS

March 17, 2021Bolivar County, Mississippi

NWS Jackson, MS issued this tornado warning at Mar 17, 2021, 6:44 AM CDT for Bolivar County, Mississippi. It was in force for 19 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, 6:44 AM CDT (11:44 UTC)
Expired
Mar 17, 2021, 7:03 AM CDT
In force
19 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Bolivar County, MS

The radar

The Memphis radar (KNQA), 164 km from the middle of the area, began a volume at 11:46 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.

IssuedProductOfficeLasted
Mar 17, 5:53 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 11.7 hours before the alert went out and 112 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-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2021-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2021-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2044 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
260 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

152 
WFUS54 KJAN 171144
TORJAN
MSC011-171215-
/O.NEW.KJAN.TO.W.0005.210317T1144Z-210317T1215Z/

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

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Northeastern Bolivar County in northwestern Mississippi...

* Until 715 AM CDT.
    
* At 643 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles northeast of Shelby, moving northeast at 50
  mph.

  HAZARD...Tornado and quarter size hail.

  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
  northeastern Bolivar County, including the following locations...
  Duncan and Alligator.

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 3412 9066 3392 9066 3390 9069 3411 9086
      3412 9082
TIME...MOT...LOC 1143Z 245DEG 42KT 3405 9070 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

7
1 follow-up statement
109 
WWUS54 KJAN 171203
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
703 AM CDT Wed Mar 17 2021

MSC011-171212-
/O.CAN.KJAN.TO.W.0005.000000T0000Z-210317T1215Z/
Bolivar MS-
703 AM CDT Wed Mar 17 2021

...THE TORNADO WARNING FOR NORTHEASTERN BOLIVAR COUNTY IS
CANCELLED...
        
The warning has been cancelled. The storm which prompted the warning 
has moved out of the area.

A Tornado Watch remains in effect until 100 PM CDT for northwestern
Mississippi.

LAT...LON 3412 9066 3392 9066 3390 9069 3411 9086
      3412 9082
TIME...MOT...LOC 1157Z 245DEG 42KT 3415 9045 

$$

7

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 7:01 PM CDTTornado WarningJANCopiah, Lawrence, Simpson31 min
Mar 16, 7:02 PM CDTSevere Thunderstorm WarningJANAttala36 min
Mar 16, 7:32 PM CDTSevere Thunderstorm WarningJANJefferson Davis, Lawrence, Simpson58 min
Mar 16, 7:33 PM CDTSpecial Weather StatementJANChoctaw27 min
Mar 16, 8:29 PM CDTSpecial Weather StatementJANSimpson46 min
Mar 16, 8:49 PM CDTSpecial Weather StatementJANKemper, Newton56 min
Mar 16, 9:50 PM CDTSpecial Weather StatementJANLauderdale25 min
Mar 17, 6:05 AM CDTTornado WarningJANBolivar40 min
Mar 17, 11:37 AM CDTSpecial Weather StatementJANJones38 min
Mar 17, 12:07 PM CDTTornado Warning Tornado observedJANClarke53 min
Mar 17, 12:22 PM CDTTornado WarningJANClarke, Lauderdale54 min
Mar 17, 12:50 PM CDTTornado WarningJANCopiah, Lawrence, Lincoln55 min
Mar 17, 1:00 PM CDTSevere Thunderstorm WarningJANKemper, Lauderdale, Noxubee45 min
Mar 17, 1:28 PM CDTTornado WarningJANJones15 min
Mar 17, 1:45 PM CDTTornado WarningJANJones21 min
Mar 17, 3:33 PM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis, Lawrence42 min
Mar 17, 4:10 PM CDTTornado WarningJANAdams, Franklin50 min
Mar 17, 4:34 PM CDTSevere Thunderstorm WarningJANClaiborne, Copiah, Hinds, Jefferson, Warren56 min
Mar 17, 4:45 PM CDTSevere Thunderstorm WarningJANBolivar, Washington60 min
Mar 17, 4:52 PM CDTTornado WarningJANCopiah, Jefferson, Lincoln37 min
Mar 17, 4:56 PM CDTTornado WarningJANBolivar, Washington29 min
Mar 17, 5:15 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin, Yazoo64 min
Mar 17, 5:20 PM CDTTornado WarningJANJasper, Smith55 min
Mar 17, 5:45 PM CDTSevere Thunderstorm WarningJANJefferson Davis, Lawrence, Marion34 min
Mar 17, 5:55 PM CDTSevere Thunderstorm WarningJANAttala, Choctaw, Holmes, Leake, Montgomery, Neshoba and 2 more65 min
Mar 17, 6:05 PM CDTSevere Thunderstorm WarningJANLeake, Neshoba, Newton, Scott55 min
Mar 17, 6:12 PM CDTSevere Thunderstorm WarningJANCovington, Simpson, Smith48 min
Mar 17, 6:13 PM CDTSevere Thunderstorm WarningJANForrest, Lamar47 min
Mar 17, 6:28 PM CDTSevere Thunderstorm WarningJANJasper, Jones48 min
Mar 17, 6:42 PM CDTSevere Thunderstorm WarningJANChoctaw, Clay, Kemper, Lowndes, Neshoba, Noxubee and 3 more76 min

Nearby

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