Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 23, NWS Jackson, MS

March 17, 2021Bolivar County, Washington County, Mississippi; Chicot County, Arkansas

NWS Jackson, MS issued this severe thunderstorm warning at Mar 17, 2021, 4:45 PM CDT for Bolivar County, Washington County, Mississippi; Chicot County, Arkansas. It was in force for 60 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
Mar 17, 2021, 4:45 PM CDT (21:45 UTC)
Expired
Mar 17, 2021, 5:45 PM CDT
In force
60 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Chicot County, AR, Bolivar County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 172 km from the middle of the area, began a volume at 21:47 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

TimeReportWhereRemark
Mar 17, 5:10 PM CDTTSTM WND GST 553 Nne Metcalfe, MSMEASURED AT THE GLH AIRPORT.

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.

IssuedProductOfficeLasted
Mar 17, 12:57 PM CDTTornado Watch PDSSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.8 hours before the alert went out and 163 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, Jackson, MS at 12:00Z on 2021-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 687 joules per kilogram.LCLLFCEL10008507005003002001001 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, Jackson, MS at 12:00Z on 2021-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 square meters per square second.1939587897Sfc1 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
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.

081 
WUUS54 KJAN 172145
SVRJAN
ARC017-MSC011-151-172245-
/O.NEW.KJAN.SV.W.0023.210317T2145Z-210317T2245Z/

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

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Northern Chicot County in southeastern Arkansas...
  Northwestern Washington County in northwestern Mississippi...
  Southern Bolivar County in northwestern Mississippi...

* Until 545 PM CDT.

* At 445 PM CDT, a severe thunderstorm was located over Mcmillan
  Corner, or near Lake Village, moving northeast at 45 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Greenville, Metcalfe, Winterville and Lamont around 505 PM CDT.
  Scott around 510 PM CDT.
  Benoit around 515 PM CDT.
  Shaw around 530 PM CDT.
  Cleveland and Boyle around 535 PM CDT.
  Renova around 540 PM CDT.

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 southeastern
Arkansas...and northwestern Mississippi.

LAT...LON 3382 9066 3363 9066 3362 9069 3362 9076
      3357 9076 3327 9131 3346 9142 3352 9130
      3352 9125 3354 9124
TIME...MOT...LOC 2145Z 238DEG 40KT 3340 9128 

HAIL...1.00IN
WIND...60MPH
 
$$

JC
3 follow-up statements
716 
WWUS54 KJAN 172152
SVSJAN

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

ARC017-MSC011-151-172245-
/O.CON.KJAN.SV.W.0023.000000T0000Z-210317T2245Z/
Chicot AR-Washington MS-Bolivar MS-
452 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTHEASTERN CHICOT...NORTHWESTERN WASHINGTON AND SOUTHERN
BOLIVAR COUNTIES...

At 452 PM CDT, a severe thunderstorm was located near Mcmillan
Corner, or 8 miles north of Lake Village, moving northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe storm will be near...
  Greenville and Winterville around 505 PM CDT.
  Scott, Metcalfe and Lamont around 510 PM CDT.
  Benoit around 520 PM CDT.
  Shaw around 530 PM CDT.
  Cleveland and Boyle around 540 PM CDT.
  Renova around 545 PM CDT.

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 southeastern
Arkansas...and northwestern Mississippi.

LAT...LON 3382 9066 3363 9066 3362 9069 3362 9076
      3357 9076 3331 9124 3348 9137 3352 9130
      3352 9125 3354 9124
TIME...MOT...LOC 2152Z 235DEG 37KT 3344 9123 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

JC
777 
WWUS54 KJAN 172228
SVSJAN

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

ARC017-MSC151-172237-
/O.CAN.KJAN.SV.W.0023.000000T0000Z-210317T2245Z/
Chicot AR-Washington MS-
528 PM CDT Wed Mar 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHICOT AND
NORTHWESTERN WASHINGTON COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM CDT for southeastern
Arkansas...and northwestern Mississippi.

LAT...LON 3382 9066 3363 9066 3362 9069 3362 9076
      3357 9076 3353 9084 3353 9122 3355 9123
TIME...MOT...LOC 2227Z 231DEG 38KT 3367 9086 

$$

MSC011-172245-
/O.CON.KJAN.SV.W.0023.000000T0000Z-210317T2245Z/
Bolivar MS-
528 PM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR SOUTHERN BOLIVAR COUNTY...

At 527 PM CDT, a severe thunderstorm was located 7 miles northwest of
Shaw, moving northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe storm will be near...
  Cleveland and Boyle around 540 PM CDT.
  Renova around 545 PM CDT.

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 southeastern
Arkansas...and northwestern Mississippi.

LAT...LON 3382 9066 3363 9066 3362 9069 3362 9076
      3357 9076 3353 9084 3353 9122 3355 9123
TIME...MOT...LOC 2227Z 231DEG 38KT 3367 9086 

HAIL...1.00IN
WIND...60MPH
 
$$

JC
362 
WWUS54 KJAN 172243
SVSJAN

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

MSC011-172253-
/O.EXP.KJAN.SV.W.0023.000000T0000Z-210317T2245Z/
Bolivar MS-
543 PM CDT Wed Mar 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN BOLIVAR COUNTY WILL
EXPIRE AT 545 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 700 PM CDT for southeastern
Arkansas...and northwestern Mississippi.

LAT...LON 3382 9066 3363 9066 3362 9069 3362 9076
      3357 9076 3353 9084 3353 9122 3355 9123
TIME...MOT...LOC 2243Z 238DEG 40KT 3376 9068 

$$

JC

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, 6:44 AM CDTTornado WarningJANBolivar19 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, 4:52 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
Mar 17, 3:33 PM CDTSevere Thunderstorm WarningJANAshley42 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021Severe Thunderstorm Warnings in Arkansas, 2021Every 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.