Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 58, NWS Jackson, MS

March 28, 2021Clay County, Lowndes County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 28, 2021, 3:42 AM CDT for Clay County, Lowndes County, Mississippi. It was in force for 32 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 28, 2021, 3:42 AM CDT (08:42 UTC)
Expired
Mar 28, 2021, 4:14 AM CDT
In force
32 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Clay County, MS, Lowndes County, MS

The radar

The Columbus AFB radar (KGWX), 28 km from the middle of the area, began a volume at 08:46 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 27, 9:01 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 8.7 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, Birmingham, AL at 00:00Z on 2021-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 643 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, Birmingham, AL at 00:00Z on 2021-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 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
643 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1359 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.7

Open this sounding in Storm Lab

The text

As transmitted.

297 
WUUS54 KJAN 280842
SVRJAN
MSC025-087-280930-
/O.NEW.KJAN.SV.W.0058.210328T0842Z-210328T0930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
342 AM CDT Sun Mar 28 2021

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Southeastern Clay County in northeastern Mississippi...
  Northeastern Lowndes County in northeastern Mississippi...

* Until 430 AM CDT.

* At 342 AM CDT, a severe thunderstorm was located near West Point,
  moving east at 60 mph.

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

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Columbus AFB and Kolola Springs around 355 AM CDT.
  Caledonia around 400 AM 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 400 AM CDT for northeastern
Mississippi.

LAT...LON 3356 8827 3356 8872 3368 8872 3368 8850
      3367 8849 3366 8852 3365 8851 3366 8850
      3366 8846 3368 8843 3367 8842 3369 8839
      3369 8837 3372 8833 3374 8833 3374 8825
TIME...MOT...LOC 0842Z 260DEG 59KT 3366 8868 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

EC
2 follow-up statements
704 
WWUS54 KJAN 280906
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
406 AM CDT Sun Mar 28 2021

MSC025-280916-
/O.CAN.KJAN.SV.W.0058.000000T0000Z-210328T0930Z/
Clay MS-
406 AM CDT Sun Mar 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLAY 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 3356 8827 3356 8850 3357 8849 3359 8849
      3360 8847 3361 8848 3364 8847 3367 8844
      3367 8842 3369 8839 3369 8837 3372 8833
      3374 8833 3374 8825
TIME...MOT...LOC 0906Z 260DEG 59KT 3373 8821 

$$

MSC087-280930-
/O.CON.KJAN.SV.W.0058.000000T0000Z-210328T0930Z/
Lowndes MS-
406 AM CDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CDT
FOR NORTHEASTERN LOWNDES COUNTY...

At 406 AM CDT, a severe thunderstorm was located near Bedford, or
near Vernon, moving east at 70 mph.

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

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of
northeastern Lowndes County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3356 8827 3356 8850 3357 8849 3359 8849
      3360 8847 3361 8848 3364 8847 3367 8844
      3367 8842 3369 8839 3369 8837 3372 8833
      3374 8833 3374 8825
TIME...MOT...LOC 0906Z 260DEG 59KT 3373 8821 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

EC
077 
WWUS54 KJAN 280914
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
414 AM CDT Sun Mar 28 2021

MSC087-280924-
/O.CAN.KJAN.SV.W.0058.000000T0000Z-210328T0930Z/
Lowndes MS-
414 AM CDT Sun Mar 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LOWNDES COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been cancelled.

LAT...LON 3356 8827 3356 8850 3357 8849 3359 8849
      3360 8847 3361 8848 3364 8847 3367 8844
      3367 8842 3369 8839 3369 8837 3372 8833
      3374 8833 3374 8825
TIME...MOT...LOC 0913Z 260DEG 59KT 3375 8805 

$$

EC

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 9:36 PM CDTTornado WarningJANBolivar36 min
Mar 27, 10:59 PM CDTSevere Thunderstorm WarningJANBolivar, Sunflower61 min
Mar 27, 11:22 PM CDTSevere Thunderstorm WarningJANWashington53 min
Mar 27, 11:31 PM CDTTornado WarningJANBolivar, Sunflower44 min
Mar 28, 12:11 AM CDTSevere Thunderstorm WarningJANBolivar, Washington27 min
Mar 28, 1:20 AM CDTSpecial Weather StatementJANHolmes25 min
Mar 28, 1:30 AM CDTSpecial Weather StatementJANGrenada30 min
Mar 28, 2:03 AM CDTSpecial Weather StatementJANCarroll27 min
Mar 28, 2:11 AM CDTSevere Thunderstorm WarningJANCarroll, Montgomery, Webster49 min
Mar 28, 2:39 AM CDTSevere Thunderstorm WarningJANChoctaw, Montgomery, Webster36 min
Mar 28, 3:08 AM CDTSevere Thunderstorm WarningJANClay, Webster52 min
Mar 28, 3:24 AM CDTSpecial Weather StatementJANOktibbeha36 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.