Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 82, NWS Memphis, TN

April 9, 2021Coahoma County, Quitman County, Tallahatchie County, Mississippi; Phillips County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Apr 9, 2021, 5:50 PM CDT for Coahoma County, Quitman County, Tallahatchie County, Mississippi; Phillips County, Arkansas. It was in force for 40 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: Apr 9, 2021, 5:50 PM CDT (22:50 UTC)
Expired: Apr 9, 2021, 6:30 PM CDT
In force: 40 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Phillips County, AR, Coahoma County, MS, Quitman County, MS, Tallahatchie County, MS

The radar

The Little Rock radar (KLZK), 154 km from the middle of the area, began a volume at 22:54 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.

Issued	Product	Office	Lasted
Apr 9, 3:42 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.8 hours before the alert went out and 110 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2139 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 141 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

835 
WUUS54 KMEG 092250
SVRMEG
ARC107-MSC027-119-135-092330-
/O.NEW.KMEG.SV.W.0082.210409T2250Z-210409T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
550 PM CDT Fri Apr 9 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Southern Phillips County in eastern Arkansas...
  Coahoma County in northwestern Mississippi...
  Northwestern Tallahatchie County in northwestern Mississippi...
  Southwestern Quitman County in northwestern Mississippi...

* Until 630 PM CDT.

* At 550 PM CDT, severe thunderstorms were located along a line
  extending from Crumrod to near Shelby to 6 miles northeast of
  Benoit, moving northeast at 50 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.

* Locations impacted include...
  Clarksdale, Elaine, White River National Wildlife Refuge, Tutwiler,
  Friars Point, Webb, Sumner, Dublin, Vance, Kings, Sherard, Crumrod,
  Lake View, Lyon, Mattson, Rena Lara, Mosby Spur, Ferguson, Counts
  and Wabash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3420 9109 3422 9106 3425 9108 3425 9106
      3429 9107 3429 9106 3431 9106 3451 9072
      3415 9028 3382 9031 3381 9031 3381 9045
      3399 9045 3399 9066 3412 9066 3412 9107
      3418 9109
TIME...MOT...LOC 2250Z 246DEG 42KT 3413 9100 3396 9081 3369 9090 

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

1 follow-up statement

610 
WWUS54 KMEG 092314
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
614 PM CDT Fri Apr 9 2021

ARC107-MSC027-119-135-092330-
/O.CON.KMEG.SV.W.0082.000000T0000Z-210409T2330Z/
Phillips AR-Coahoma MS-Tallahatchie MS-Quitman MS-
614 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR SOUTHERN PHILLIPS...COAHOMA...NORTHWESTERN TALLAHATCHIE AND
SOUTHWESTERN QUITMAN COUNTIES...

At 614 PM CDT, severe thunderstorms were located along a line
extending from near Elaine to 9 miles west of Dublin to near Renova,
moving northeast at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Clarksdale, Elaine, White River National Wildlife Refuge, Tutwiler,
Friars Point, Webb, Sumner, Dublin, Vance, Kings, Sherard, Crumrod,
Lake View, Lyon, Mattson, Rena Lara, Mosby Spur, Ferguson, Counts and
Wabash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3420 9109 3422 9106 3425 9108 3425 9106
      3429 9107 3429 9106 3431 9106 3451 9072
      3415 9028 3382 9031 3381 9031 3381 9045
      3399 9045 3399 9066 3412 9066 3412 9107
      3418 9109
TIME...MOT...LOC 2314Z 222DEG 40KT 3429 9091 3407 9067 3378 9067 

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

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 9, 4:12 PM CDT	Special Weather Statement	MEG	Coahoma, Quitman	33 min
Apr 9, 5:10 PM CDT	Special Weather Statement	MEG	Tunica	35 min
Apr 9, 5:26 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma	49 min
Apr 9, 5:36 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Marshall	39 min
Apr 9, 6:08 PM CDT	Special Weather Statement	MEG	Union	37 min
Apr 9, 6:31 PM CDT	Special Weather Statement	MEG	Coahoma, Quitman, Tallahatchie	29 min
Apr 9, 6:37 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Tippah, Union	38 min
Apr 9, 6:45 PM CDT	Tornado Warning	MEG	Lee, Tippah, Union	21 min
Apr 9, 6:57 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Pontotoc, Union	48 min
Apr 9, 6:59 PM CDT	Special Weather Statement	MEG	Panola, Quitman, Tallahatchie, Tate, Yalobusha	46 min
Apr 9, 3:37 PM CDT	Special Weather Statement	MEG	Craighead	23 min
Apr 9, 3:45 PM CDT	Special Weather Statement	MEG	Craighead	30 min
Apr 9, 3:57 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Greene, Mississippi, Poinsett	48 min
Apr 9, 4:07 PM CDT	Severe Thunderstorm Warning	MEG	Clay, Craighead, Greene	53 min
Apr 9, 4:19 PM CDT	Severe Thunderstorm Warning	MEG	Clay, Greene	41 min
Apr 9, 5:24 PM CDT	Special Weather Statement	MEG	Lee	36 min
Apr 9, 5:31 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	27 min
Apr 9, 6:04 PM CDT	Special Weather Statement	MEG	St. Francis	26 min

Nearby

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