Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 57, NWS Jackson, MS

March 28, 2021Clay County, Webster County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 28, 2021, 3:08 AM CDT for Clay County, Webster County, Mississippi. It was in force for 52 min. 2 reports 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 28, 2021, 3:08 AM CDT (08:08 UTC)
Expired: Mar 28, 2021, 4:00 AM CDT
In force: 52 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Clay County, MS, Webster County, MS

The radar

The Columbus AFB radar (KGWX), 56 km from the middle of the area, began a volume at 08:12 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
Mar 28, 3:33 AM CDT	TSTM WND DMG	Hopewell, MS	TREES DOWNED ALONG MS HIGHWAY 46 NEAR HAZELWOOD LOOP.
Mar 28, 3:36 AM CDT	TSTM WND DMG	3 Nnw Palo Alto, MS	TREES DOWNED ALONG MS HIGHWAY 47. REPORT VIA SOCIAL MEDIA.

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.

Issued	Product	Office	Lasted
Mar 27, 9:01 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 8.1 hours before the alert went out and 157 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: 894 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1261 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 8.7

Open this sounding in Storm Lab

The text

As transmitted.

802 
WUUS54 KJAN 280808
SVRJAN
MSC025-155-280900-
/O.NEW.KJAN.SV.W.0057.210328T0808Z-210328T0900Z/

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

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Northeastern Webster County in north central Mississippi...
  Clay County in northeastern Mississippi...

* Until 400 AM CDT.

* At 308 AM CDT, a severe thunderstorm was located over Cumberland,
  or 8 miles southwest of Montpelier, moving east at 50 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...
  Montpelier around 320 AM CDT.
  Griffith around 325 AM CDT.
  Pala Alto around 330 AM CDT.

Other locations impacted by this severe thunderstorm include Mantee.

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 north central
and northeastern Mississippi.

LAT...LON 3368 8872 3368 8869 3357 8869 3356 8909
      3373 8909 3374 8906 3374 8904 3376 8903
      3376 8893 3380 8893 3381 8889 3381 8872
TIME...MOT...LOC 0808Z 248DEG 43KT 3362 8905 

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

EC

2 follow-up statements

152 
WWUS54 KJAN 280837
SVSJAN

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

MSC025-155-280900-
/O.CON.KJAN.SV.W.0057.000000T0000Z-210328T0900Z/
Webster MS-Clay MS-
337 AM CDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR NORTHEASTERN WEBSTER AND CLAY COUNTIES...

At 337 AM CDT, a severe thunderstorm was located over Griffith, or 7
miles southeast of Montpelier, moving east at 40 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 Webster and Clay Counties, including the following
locations... Mantee.

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 north central
and northeastern Mississippi.

LAT...LON 3368 8872 3368 8869 3357 8869 3356 8909
      3373 8909 3374 8906 3374 8904 3376 8903
      3376 8893 3380 8893 3381 8889 3381 8872
TIME...MOT...LOC 0837Z 261DEG 36KT 3364 8885 

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

EC

906 
WWUS54 KJAN 280844
SVSJAN

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

MSC155-280854-
/O.CAN.KJAN.SV.W.0057.000000T0000Z-210328T0900Z/
Webster MS-
344 AM CDT Sun Mar 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WEBSTER 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 3368 8872 3368 8869 3357 8869 3357 8888
      3365 8881 3375 8886 3381 8886 3381 8872
TIME...MOT...LOC 0844Z 259DEG 52KT 3366 8870 

$$

MSC025-280900-
/O.CON.KJAN.SV.W.0057.000000T0000Z-210328T0900Z/
Clay MS-
344 AM CDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR CENTRAL CLAY COUNTY...

At 344 AM CDT, a severe thunderstorm was located near Pala Alto, or
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.

Locations impacted include...
Pala Alto.

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 3368 8872 3368 8869 3357 8869 3357 8888
      3365 8881 3375 8886 3381 8886 3381 8872
TIME...MOT...LOC 0844Z 259DEG 52KT 3366 8870 

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

EC

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 27, 9:36 PM CDT	Tornado Warning	JAN	Bolivar	36 min
Mar 27, 10:59 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	61 min
Mar 27, 11:22 PM CDT	Severe Thunderstorm Warning	JAN	Washington	53 min
Mar 27, 11:31 PM CDT	Tornado Warning	JAN	Bolivar, Sunflower	44 min
Mar 28, 12:11 AM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Washington	27 min
Mar 28, 1:20 AM CDT	Special Weather Statement	JAN	Holmes	25 min
Mar 28, 1:30 AM CDT	Special Weather Statement	JAN	Grenada	30 min
Mar 28, 2:03 AM CDT	Special Weather Statement	JAN	Carroll	27 min
Mar 28, 2:11 AM CDT	Severe Thunderstorm Warning	JAN	Carroll, Montgomery, Webster	49 min
Mar 28, 2:39 AM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Montgomery, Webster	36 min
Mar 28, 3:24 AM CDT	Special Weather Statement	JAN	Oktibbeha	36 min
Mar 28, 3:42 AM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes	32 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021 Every 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.