Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 283, NWS Jackson, MS

October 5, 2021Clay County, Lowndes County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Oct 5, 2021, 7:53 PM CDT for Clay County, Lowndes County, Mississippi. It was in force for 67 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: Oct 5, 2021, 7:53 PM CDT (00:53 UTC)
Expired: Oct 5, 2021, 9:00 PM CDT
In force: 67 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Clay County, MS, Lowndes County, MS

The radar

The Columbus AFB radar (KGWX), 34 km from the middle of the area, began a volume at 00:56 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 nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.9 hours before the alert went out and 162 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: 734 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

539 
WUUS54 KJAN 060053
SVRJAN
MSC025-087-060200-
/O.NEW.KJAN.SV.W.0283.211006T0053Z-211006T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
753 PM CDT Tue Oct 5 2021

The National Weather Service in Jackson has issued a

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

* Until 900 PM CDT.

* At 753 PM CDT, severe thunderstorms were located along a line
  extending from near Waverly to near Bigbee Valley, moving northeast
  at 25 mph.

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

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Waverly around 800 PM CDT.
  Columbus around 805 PM CDT.
  Columbus AFB around 815 PM CDT.
  Kolola Springs around 820 PM CDT.
  Caledonia around 830 PM CDT.
  Steens around 835 PM CDT.

Other locations impacted by these severe thunderstorms include
Artesia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3329 8830 3329 8860 3341 8867 3368 8867
      3368 8850 3367 8850 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 0053Z 205DEG 20KT 3352 8852 3330 8835 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

DC

1 follow-up statement

641 
WWUS54 KJAN 060142
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
842 PM CDT Tue Oct 5 2021

MSC025-060152-
/O.CAN.KJAN.SV.W.0283.000000T0000Z-211006T0200Z/
Clay MS-
842 PM CDT Tue Oct 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLAY COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3342 8829 3344 8852 3353 8855 3355 8853
      3355 8852 3353 8849 3353 8847 3356 8850
      3360 8847 3362 8851 3364 8850 3365 8851
      3366 8850 3366 8846 3369 8839 3369 8837
      3372 8833 3374 8833 3374 8825
TIME...MOT...LOC 0142Z 196DEG 18KT 3367 8840 3366 8826 3359 8819 

$$

MSC087-060200-
/O.CON.KJAN.SV.W.0283.000000T0000Z-211006T0200Z/
Lowndes MS-
842 PM CDT Tue Oct 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR NORTHEASTERN LOWNDES COUNTY...

At 842 PM CDT, severe thunderstorms were located along a line
extending from Kolola Springs to near Caledonia to 6 miles west of
Millport, moving north at 20 mph.

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

SOURCE...Radar indicated.

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

These severe storms will be near...
  Caledonia around 850 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3342 8829 3344 8852 3353 8855 3355 8853
      3355 8852 3353 8849 3353 8847 3356 8850
      3360 8847 3362 8851 3364 8850 3365 8851
      3366 8850 3366 8846 3369 8839 3369 8837
      3372 8833 3374 8833 3374 8825
TIME...MOT...LOC 0142Z 196DEG 18KT 3367 8840 3366 8826 3359 8819 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

DC

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 5, 7:06 PM CDT	Special Weather Statement	JAN	Lowndes	24 min
Oct 5, 7:14 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lowndes, Noxubee, Oktibbeha, Winston	46 min
Oct 5, 7:15 PM CDT	Flash Flood Warning	JAN	Lowndes, Noxubee, Oktibbeha	103 min
Oct 5, 7:34 PM CDT	Special Weather Statement	JAN	Clay	41 min
Oct 5, 8:14 PM CDT	Flash Flood Warning	JAN	Lowndes, Noxubee	2 hr
Oct 5, 10:07 PM CDT	Flash Flood Warning	JAN	Lauderdale	2 hr
Oct 6, 5:50 AM CDT	Dense Fog Advisory	JAN	Covington, Forrest, Jefferson Davis, Jones, Lamar, Lawrence and 1 more	3 hr

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