Special Weather Statement, NWS Memphis, TN

Area Forecast Discussion
National Weather Service Memphis TN
252 PM CDT Thu May 6 2021

.DISCUSSION...

Convection is beginning to make its way towards the Mississippi
River. At this time cells seems to be sub-severe with reports of
small hail. Current mesoanalysis has minimal instability around
the area with robust lapse rates and some shear. As this system
progresses the threat for hail will decrease and the threat for
damaging winds will increase. There is a Severe Thunderstorm Watch
out for northeast Arkansas, the Missouri Bootheel and parts of
west Tennessee. As the system moves eastward the rest of west
Tennessee will likely be added to the watch. Thunderstorms will
push towards the Tennessee River and eventually move our of the
area by 8 PM. Lows tonight will generally be in the upper 40s
across the area.

A surface high will build into the area Friday. This will allow
for clear skies, low humidity and high temperatures in the low
70s. Unfortunately, this wont last for long as a trough begins to
dig across the Cascades by Friday night. The trough and
associated low pressure will move eastward towards the Rockies by
Saturday morning. A warm front associated with a the low will
bring showers to the area early Saturday into Saturday night. On
Sunday the warm front will be north of the area but a cold front
will begin to move its way eastward towards the Mid-South. Showers
and thunderstorms will accompany this front. So far, areas
instability looks modest with 500 to 1000 J/kg of MLCAPE, however,
low level shear will be on the order of 250 to 350 m2/s2 of storm
relative helicity. This environment will be capable of supporting
all modes of severe weather including damaging winds, large hail,
and a few tornadoes. All of this depends on how much
destabilization happens after the warm front lifts north. The best
chance for severe weather looks to be along and west of the
Mississippi River.

Temperatures through the weekend will be in the 70s, with highs on
Sunday in the 80s. Lows will be in the upper 50s to lower 60s.

After the front pushes eastward temperatures will drop 7 to 10
degrees below normal and keep those temperatures through the
beginning of next week. By midweek showers will yet again move
through the area. Will continue to monitor.

SWB

&&

.AVIATION...
/18z TAFs/

Winds will shift from the northwest this afternoon and evening as
cold front moves across the area. Winds will be gusty for an hour
or two following the frontal passage but will diminish quickly
overnight. Scattered showers and thunderstorms are expected along
and ahead of this front, likely affecting the northern 3 forecast
terminals, and perhaps TUP as well. VFR conditions will prevail
outside of convection, but tempo restrictions to vis/ceilings are
possible within these thunderstorms.

MJ

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...None.
MO...None.
MS...None.
TN...None.
&&

Hazardous Weather Outlook
National Weather Service Memphis TN
209 PM CDT Thu May 6 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-072115-
Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay-
Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-
Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-
Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lee AR-Lee MS-
Madison-Marshall-McNairy-Mississippi-Monroe-Obion-Panola-Pemiscot-
Phillips-Poinsett-Pontotoc-Prentiss-Quitman-Shelby-St. Francis-
Tallahatchie-Tate-Tippah-Tipton-Tishomingo-Tunica-Union-Weakley-
Yalobusha-
209 PM CDT Thu May 6 2021

This hazardous weather outlook is for portions of East Arkansas...
the Missouri Bootheel...North Mississippi...and West Tennessee.

.DAY ONE...This Afternoon and Tonight

There is a slight risk of severe storms across Northeast
Arkansas, the Missouri Bootheel and Northwest Tennessee this
afternoon through this evening. Gusty winds and hail are the main
threats.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Strong to severe storms are possible on Sunday as a cold front
moves across the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested.

Special Weather Statement
National Weather Service Memphis TN
409 PM CDT Thu May 6 2021

TNZ053>055-090>092-062145-
Hardeman TN-Henderson TN-Chester TN-Decatur TN-McNairy TN-Hardin TN-
409 PM CDT Thu May 6 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 445 PM CDT
FOR...

Hardeman County in western Tennessee...
Henderson County in western Tennessee...
Chester County in western Tennessee...
Decatur County in western Tennessee...
McNairy County in western Tennessee...
Northwestern Hardin County in western Tennessee...

At 408 PM CDT...strong thunderstorms producing wind gusts up to 50
mph was located along a line extending from near Parkers Crossroads
to Masseyville to 8 miles northeast of Lagrange. Movement was east at
50 mph.

People in Hardeman...Henderson...Chester...Decatur...McNairy and
northwestern Hardin Counties should monitor this storm closely.

LAT...LON 3572 8803 3566 8802 3562 8804 3556 8800
      3522 8828 3500 8886 3520 8919 3537 8883
      3547 8873 3549 8867 3553 8863 3558 8862
      3578 8841 3577 8798
TIME...MOT...LOC 2108Z 285DEG 43KT 3574 8839 3531 8875 3517 8916

MJ

Special Weather Statement
National Weather Service Memphis TN
413 PM CDT Thu May 6 2021

MSZ001>004-TNZ088>090-062145-
Tippah MS-Marshall MS-DeSoto MS-Benton MS-Hardeman TN-Fayette TN-
Shelby TN-
413 PM CDT Thu May 6 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 445 PM CDT
FOR...

North central Tippah County in northeastern Mississippi...
Northern Marshall County in northwestern Mississippi...
DeSoto County in northwestern Mississippi...
Northern Benton County in northeastern Mississippi...
Southwestern Hardeman County in western Tennessee...
Fayette County in western Tennessee...
Southeastern Shelby County in western Tennessee...

At 412 PM CDT...strong thunderstorms producing hail up to the size
of pennies and wind gusts to 50 mph were located along a line
extending from 8 miles north of Lagrange to near Collierville to
near T O Fuller State Park. Movement was southeast at 35 mph.

People in north central Tippah...northern Marshall...DeSoto...
northern Benton...southwestern Hardeman...Fayette and southeastern
Shelby Counties should monitor this storm closely.

LAT...LON 3481 8947 3480 9014 3513 9012 3512 9009
      3514 9006 3517 9011 3520 9011 3519 9010
      3522 9008 3525 8977 3536 8932 3499 8884
TIME...MOT...LOC 2112Z 302DEG 28KT 3518 8922 3505 8965 3502 9014

MJ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
423 PM CDT THU MAY 06 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0421 PM     TSTM WND DMG     GIBSON                  35.87N  88.85W
05/06/2021                   GIBSON             TN   EMERGENCY MNGR

            MULTIPLE TREES ON HOUSES, POWER LINES DOWN, TREE FELL
            ON A CAR

&&

SMW

Special Weather Statement
National Weather Service Memphis TN
439 PM CDT Thu May 6 2021

MSZ005-006-009-TNZ055-090>092-062215-
Tishomingo MS-Alcorn MS-Prentiss MS-Hardeman TN-Decatur TN-
McNairy TN-Hardin TN-
439 PM CDT Thu May 6 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 515 PM CDT
FOR...

Northern Tishomingo County in northeastern Mississippi...
Alcorn County in northeastern Mississippi...
North central Prentiss County in northeastern Mississippi...
Southeastern Hardeman County in western Tennessee...
Decatur County in western Tennessee...
Southern McNairy County in western Tennessee...
Hardin County in western Tennessee...

At 438 PM CDT...strong thunderstorms producing pea size hail or
larger and winds at least 50 mph was located along a line extending
from near Parsons to near Adamsville to near Pocahontas. Movement
was southeast at 50 mph.

People in northern Tishomingo...Alcorn...north central Prentiss...
southeastern Hardeman...Decatur...southern McNairy and Hardin
Counties should monitor this storm closely.

LAT...LON 3539 8803 3529 8798 3501 8798 3501 8820
      3485 8810 3464 8859 3490 8882 3499 8882
      3500 8891 3504 8895 3527 8842 3542 8831
      3542 8824 3551 8824 3572 8809 3567 8802
      3562 8804 3552 8797 3544 8804 3541 8797
TIME...MOT...LOC 2138Z 300DEG 47KT 3562 8805 3523 8839 3497 8883

SJM

Special Weather Statement
National Weather Service Memphis TN
443 PM CDT Thu May 6 2021

ARZ036-MSZ001>004-007>009-012>014-062215-
Crittenden AR-Lafayette MS-Tippah MS-Tunica MS-Marshall MS-Union MS-
DeSoto MS-Panola MS-Benton MS-Tate MS-Prentiss MS-
443 PM CDT Thu May 6 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 515 PM CDT
FOR...

South central Crittenden County in eastern Arkansas...
Northern Lafayette County in northwestern Mississippi...
Tippah County in northeastern Mississippi...
Eastern Tunica County in northwestern Mississippi...
Marshall County in northwestern Mississippi...
Northern Union County in northeastern Mississippi...
DeSoto County in northwestern Mississippi...
Northern Panola County in northwestern Mississippi...
Benton County in northeastern Mississippi...
Tate County in northwestern Mississippi...
Northwestern Prentiss County in northeastern Mississippi...

At 443 PM CDT...strong thunderstorms producing pea size hail or
larger and winds at least 50 mph was located along a line extending
from 6 miles southwest of Pocahontas to near Byhalia to near
Robinsonville. Movement was southeast at 60 mph.

People in south central Crittenden...northern Lafayette...Tippah...
eastern Tunica...Marshall...northern Union...DeSoto...northern
Panola...Benton...Tate and northwestern Prentiss Counties should
monitor this storm closely.

LAT...LON 3443 8936 3444 9020 3451 9020 3452 9033
      3483 9042 3493 9041 3489 8972 3500 8887
      3486 8882 3484 8875 3476 8875 3476 8869
      3463 8859
TIME...MOT...LOC 2143Z 326DEG 52KT 3497 8889 3482 8968 3482 9042

SJM

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