Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 244, NWS Jackson, MS

July 16, 2021Clay County, Lowndes County, Oktibbeha County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 16, 2021, 2:37 PM CDT for Clay County, Lowndes County, Oktibbeha County, Mississippi. It was in force for 38 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
Jul 16, 2021, 2:37 PM CDT (19:37 UTC)
Expired
Jul 16, 2021, 3:15 PM CDT
In force
38 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, Oktibbeha County, MS

The radar

The Columbus AFB radar (KGWX), 52 km from the middle of the area, began a volume at 19:36 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

Little Rock, AR (KLZK), launched 12:00Z, 7.6 hours before the alert went out and 182 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 12:00Z on 2021-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 681 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2021-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.1939Sfc1 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
681 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
567 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

826 
WUUS54 KJAN 161937
SVRJAN
MSC025-087-105-162015-
/O.NEW.KJAN.SV.W.0244.210716T1937Z-210716T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
237 PM CDT Fri Jul 16 2021

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Eastern Oktibbeha County in northeastern Mississippi...
  Southeastern Clay County in northeastern Mississippi...
  West central Lowndes County in northeastern Mississippi...

* Until 315 PM CDT.

* At 237 PM CDT, a severe thunderstorm was located near Starkville,
  moving northeast at 20 mph.

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

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Muldrow around 250 PM CDT.
  Tibbee around 300 PM CDT.
  West Point around 305 PM CDT.

Other locations impacted by this severe thunderstorm include Artesia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3334 8879 3368 8887 3372 8872 3368 8872
      3368 8858 3345 8852
TIME...MOT...LOC 1937Z 237DEG 17KT 3349 8875 

HAIL...0.88IN
WIND...60MPH
 
$$

TW
3 follow-up statements
663 
WWUS54 KJAN 161947
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
247 PM CDT Fri Jul 16 2021

MSC025-087-105-162015-
/O.CON.KJAN.SV.W.0244.000000T0000Z-210716T2015Z/
Oktibbeha MS-Clay MS-Lowndes MS-
247 PM CDT Fri Jul 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR NORTHEASTERN OKTIBBEHA...SOUTHEASTERN CLAY AND WEST CENTRAL
LOWNDES COUNTIES...

At 247 PM CDT, severe thunderstorms were located along a line
extending from near Pala Alto to Muldrow to Sessums, moving northeast
at 15 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...
  Tibbee around 255 PM CDT.
  West Point around 300 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.

&&

LAT...LON 3335 8876 3369 8882 3372 8872 3368 8872
      3368 8858 3345 8852
TIME...MOT...LOC 1947Z 240DEG 15KT 3373 8871 3357 8869 3339 8871 

HAIL...0.88IN
WIND...60MPH
 
$$

TW
466 
WWUS54 KJAN 162001
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
301 PM CDT Fri Jul 16 2021

MSC087-162011-
/O.CAN.KJAN.SV.W.0244.000000T0000Z-210716T2015Z/
Lowndes MS-
301 PM CDT Fri Jul 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL LOWNDES COUNTY IS
CANCELLED...

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

LAT...LON 3352 8856 3353 8856 3351 8860 3350 8874
      3370 8878 3372 8872 3368 8872 3368 8858
      3353 8854
TIME...MOT...LOC 2001Z 237DEG 19KT 3380 8861 3364 8859 3346 8861 

$$

MSC025-105-162015-
/O.CON.KJAN.SV.W.0244.000000T0000Z-210716T2015Z/
Oktibbeha MS-Clay MS-
301 PM CDT Fri Jul 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR NORTHEASTERN OKTIBBEHA AND SOUTHEASTERN CLAY COUNTIES...

At 301 PM CDT, severe thunderstorms were located along a line
extending from near Prairie to near West Point to near Bent Oak,
moving northeast at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe thunderstorms will remain over mainly rural areas of
northeastern Oktibbeha and southeastern Clay Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3352 8856 3353 8856 3351 8860 3350 8874
      3370 8878 3372 8872 3368 8872 3368 8858
      3353 8854
TIME...MOT...LOC 2001Z 237DEG 19KT 3380 8861 3364 8859 3346 8861 

HAIL...<.75IN
WIND...60MPH
 
$$

TW
267 
WWUS54 KJAN 162008
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
308 PM CDT Fri Jul 16 2021

MSC025-105-162018-
/O.EXP.KJAN.SV.W.0244.000000T0000Z-210716T2015Z/
Oktibbeha MS-Clay MS-
308 PM CDT Fri Jul 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OKTIBBEHA AND
SOUTHEASTERN CLAY COUNTIES WILL EXPIRE AT 315 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 3352 8856 3353 8856 3351 8860 3350 8874
      3370 8878 3372 8872 3368 8872 3368 8858
      3353 8854
TIME...MOT...LOC 2008Z 237DEG 17KT 3382 8858 3366 8856 3348 8858 

$$

TW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 11:19 AM CDTSevere Thunderstorm WarningJANRankin, Simpson, Smith32 min
Jul 16, 11:27 AM CDTSpecial Weather StatementJANScott48 min
Jul 16, 1:30 PM CDTSpecial Weather StatementJANSmith45 min
Jul 16, 1:58 PM CDTSpecial Weather StatementJANClay32 min
Jul 16, 2:22 PM CDTSpecial Weather StatementJANLeflore53 min
Jul 16, 2:27 PM CDTSpecial Weather StatementJANLowndes33 min
Jul 16, 2:34 PM CDTSpecial Weather StatementJANHinds26 min
Jul 16, 2:43 PM CDTSpecial Weather StatementJANYazoo32 min
Jul 16, 2:46 PM CDTSpecial Weather StatementJANClay14 min
Jul 16, 2:54 PM CDTSpecial Weather StatementJANHinds36 min
Jul 16, 2:58 PM CDTSpecial Weather StatementJANHinds32 min
Jul 16, 3:02 PM CDTSpecial Weather StatementJANLowndes43 min
Jul 16, 3:22 PM CDTSpecial Weather StatementJANLowndes38 min
Jul 16, 3:25 PM CDTSpecial Weather StatementJANHinds35 min
Jul 16, 3:38 PM CDTSpecial Weather StatementJANFranklin, Jefferson52 min
Jul 16, 3:43 PM CDTSpecial Weather StatementJANLowndes47 min
Jul 16, 3:45 PM CDTSpecial Weather StatementJANCopiah30 min
Jul 16, 3:46 PM CDTSpecial Weather StatementJANNoxubee29 min
Jul 16, 3:58 PM CDTSpecial Weather StatementJANClaiborne47 min
Jul 16, 4:00 PM CDTSpecial Weather StatementJANLincoln45 min
Jul 16, 4:12 PM CDTSpecial Weather StatementJANRankin33 min
Jul 16, 4:14 PM CDTSpecial Weather StatementJANLowndes31 min
Jul 16, 4:20 PM CDTFlash Flood WarningJANHinds, Madison, Rankin2 hr
Jul 16, 4:32 PM CDTSpecial Weather StatementJANCopiah28 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.