Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 137, NWS Memphis, TN

May 9, 2021DeSoto County, Tate County, Tunica County, Mississippi; Lee County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at May 9, 2021, 5:21 PM CDT for DeSoto County, Tate County, Tunica County, Mississippi; Lee County, Arkansas. It was in force for 24 min. 1 report 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: May 9, 2021, 5:21 PM CDT (22:21 UTC)
Expired: May 9, 2021, 5:45 PM CDT
In force: 24 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lee County, AR, DeSoto County, MS, Tate County, MS, Tunica County, MS

The radar

The Memphis radar (KNQA), 93 km from the middle of the area, began a volume at 22:23 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
May 9, 5:41 PM CDT	TSTM WND DMG	Tunica, MS	A LARGE TREE FELL ON HOUSE ON KENNY HILL RD AND HICKORY LANE.

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
May 9, 2:27 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.4 hours before the alert went out and 50 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: 203 J/kg
Mixed-layer CIN: -439 J/kg
Mixed-layer LCL: 759 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 446 m²/s²
0-3 km storm-relative helicity: 571 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

911 
WUUS54 KMEG 092221
SVRMEG
ARC077-MSC033-137-143-092245-
/O.NEW.KMEG.SV.W.0137.210509T2221Z-210509T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
521 PM CDT Sun May 9 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Eastern Lee County in eastern Arkansas...
  Southwestern DeSoto County in northwestern Mississippi...
  Tunica County in northwestern Mississippi...
  Western Tate County in northwestern Mississippi...

* Until 545 PM CDT.

* At 521 PM CDT, a severe thunderstorm was located 8 miles west of
  North Tunica, or 11 miles northeast of St Francis National Park,
  moving southeast at 25 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...
  Tunica, Phillipp, Dubbs, North Tunica, Arkabutla, Robinsonville,
  Little Texas, Gerlach Mill, Savage, Commerce, Austin, Peters,
  Prichard, Diamond Woods, Whitehall, Bowdre, Dooley, Maud, Fox
  Island and Clayton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3486 9056 3478 9007 3451 9023 3451 9031
      3446 9030 3462 9059 3464 9059 3464 9063
      3467 9068
TIME...MOT...LOC 2221Z 298DEG 21KT 3472 9053 

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

SWB

1 follow-up statement

401 
WWUS54 KMEG 092240
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
540 PM CDT Sun May 9 2021

ARC077-MSC033-137-143-092250-
/O.EXP.KMEG.SV.W.0137.000000T0000Z-210509T2245Z/
Lee AR-DeSoto MS-Tunica MS-Tate MS-
540 PM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN LEE...SOUTHWESTERN
DESOTO...TUNICA AND WESTERN TATE COUNTIES WILL EXPIRE AT 545 PM
CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
eastern Arkansas...and northwestern Mississippi.

Remember, a Severe Thunderstorm Warning still remains in effect.

LAT...LON 3486 9056 3478 9007 3451 9023 3451 9031
      3446 9030 3462 9059 3464 9059 3464 9063
      3467 9068
TIME...MOT...LOC 2240Z 298DEG 21KT 3468 9043 

$$

SWB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 8:42 PM CDT	River Flood Warning	MEG	Monroe	36 hr
May 8, 8:42 PM CDT	River Flood Warning	MEG	Monroe	36 hr
May 9, 9:48 AM CDT	Special Weather Statement	MEG	Tate	27 min
May 9, 10:14 AM CDT	Special Weather Statement	MEG	Panola	31 min
May 9, 11:24 AM CDT	Special Weather Statement	MEG	Union	36 min
May 9, 4:50 PM CDT	Severe Thunderstorm Warning	MEG	Tunica	40 min
May 9, 5:39 PM CDT	Severe Thunderstorm Warning	MEG	DeSoto, Panola, Quitman, Tate, Tunica	36 min
May 9, 6:01 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall, Panola, Tate	44 min
May 9, 6:31 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Lafayette, Marshall, Pontotoc, Union	44 min
May 9, 6:42 PM CDT	Tornado Warning	MEG	Lafayette, Marshall, Pontotoc, Union	21 min
May 9, 7:28 AM CDT	Special Weather Statement	MEG	Clay, Greene	32 min
May 9, 3:35 PM CDT	Special Weather Statement	MEG	Craighead	25 min
May 9, 3:39 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Mississippi, Poinsett	36 min
May 9, 3:47 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi	28 min
May 9, 3:55 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Poinsett	35 min
May 9, 4:01 PM CDT	Severe Thunderstorm Warning	MEG	Cross, St. Francis	29 min
May 9, 4:17 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Mississippi, Poinsett	28 min
May 9, 4:20 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Lee, St. Francis	40 min
May 9, 4:28 PM CDT	Tornado Warning	MEG	Lee, St. Francis	32 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.