Special Weather Statement, NWS Memphis, TN

Area Forecast Discussion
National Weather Service Memphis TN
1129 PM CDT Tue Aug 6 2019

.UPDATE...
Updated for overnight rain chances and to include the 06z aviation
discussion.

&&

.DISCUSSION...
Convection continues across west TN this evening despite
increasing CINh. MUCAPE values still on the order of 2000-3000
J/kg across the area and effective bulk wind difference around 35
kts has helped sustain this activity. Storms still appear to be
surface based with wind gusts of 48 mph at Jackson and 54 mph at
Beech Regional airport near Lexington in the past hour but we do
expect this activity to finally weaken over next 1-2 hours as the
boundary layer decouples. With this rain ending later tonight, a
generally dry morning is expected.

PoPs were adjusted for tomorrow to account for additional diurnal
activity developing along the remnant outflow boundary from
tonight's storms. There is also a hint that another MCS could
affect the area late tomorrow afternoon/evening so we'll have to
monitor how convective trends evolve.

MJ

&&

.PREV DISCUSSION... /issued 400 PM CDT Tue Aug 6 2019/

DISCUSSION...

Diurnal isolated thunderstorms are developing across the forecast
area this afternoon. Expect the isolated storms to dissipate by
early this evening. However, a developing MCS over the middle
Mississippi valley will move south-southeastward into a portion of
west Tennessee later this evening into the overnight hours.

A nearly stationary front will remain over the region over the
next several days. An upper ridge over west TX and a trough over
the eastern US will continue to support a NW flow aloft favoring
additional storms from MCSs into the weekend.

The western upper ridge will migrate eastward toward the lower
Mississippi valley Sunday into early next week. This will decrease
the chance of storms but increase the heat potential later in the
weekend into next week.

SWC

&&

.AVIATION...
/06z TAFs/

Convective activity has diminished over the past couple of hours
and isn't expected to impact any TAF sites overnight. Patchy fog
may develop overnight at MKL producing temporary MVFR/IFR
conditions. Otherwise, VFR conditions expected through the period
outside of any thunderstorms. Left over outflow boundaries from
this evening's convective activity and the development of a
shower/thunderstorm complex upstream over Missouri on Wednesday
may result in the development of additional showers and
thunderstorms along a JBR-MEM- TUP line from 20Z-03Z. Will handle
this with a VCTS for now and continue to monitor for better timing
in upcoming TAF sets. Light S winds overnight into Wednesday
morning should develop into NW winds between 5-9 kts Wednesday
afternoon, then becoming light Wednesday evening.

CJC

&&

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

&&

Hazardous Weather Outlook
National Weather Service Memphis TN
314 PM CDT Tue Aug 6 2019

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-071100-
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-
314 PM CDT Tue Aug 6 2019

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

.DAY ONE...This Afternoon and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Hot and humid conditions are expected from Sunday into early next
week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

SWC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
1043 PM CDT TUE AUG 06 2019

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

0935 PM     TSTM WND DMG     5 NNE JONESBORO         35.89N  90.67W
08/06/2019                   CRAIGHEAD          AR   BROADCAST MEDIA

            LARGE TREE DOWN ACROSS COUNTY ROAD 730.

&&

MJ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
1053 PM CDT TUE AUG 06 2019

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

0910 PM     TSTM WND DMG     2 W CLOVERDALE          36.23N  89.36W
08/06/2019                   OBION              TN   SOCIAL MEDIA

            POWERLINES AND SEVERAL LARGE TREE LIMBS DOWN ON
            MILLSFIELD HIGHWAY NEAR CLOVERDALE. TIME ESTIMATED.

&&

MJ

Special Weather Statement
National Weather Service Memphis TN
1101 PM CDT Tue Aug 6 2019

TNZ050>052-070430-
Madison TN-Crockett TN-Haywood TN-
1101 PM CDT Tue Aug 6 2019

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 1130 PM CDT
FOR...

Southwestern Madison County in western Tennessee...
Southwestern Crockett County in western Tennessee...
Eastern Haywood County in western Tennessee...

At 1100 PM CDT...strong thunderstorms producing penny size hail and
winds 35 to 45 mph were located along a line extending from near
Belle Eagle to near Bemis. Movement was southeast at 30 mph.

People in southwestern Madison...southwestern Crockett and eastern
Haywood Counties should monitor this storm closely.

LAT...LON 3546 8875 3543 8881 3543 8922 3577 8930
      3566 8874
TIME...MOT...LOC 0400Z 327DEG 26KT 3572 8924 3556 8876

MJ

Special Weather Statement
National Weather Service Memphis TN
1233 AM CDT Wed Aug 7 2019

MSZ004-005-009-TNZ090-091-070615-
Tippah MS-Alcorn MS-Prentiss MS-Hardeman TN-McNairy TN-
1233 AM CDT Wed Aug 7 2019

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 115 AM CDT
FOR...

Central Tippah County in northeastern Mississippi...
Alcorn County in northeastern Mississippi...
Northern Prentiss County in northeastern Mississippi...
Southeastern Hardeman County in western Tennessee...
Southwestern McNairy County in western Tennessee...

At 1233 AM CDT...a strong thunderstorm producing winds at least 40
mph was located over Pocahontas, or near Big Hill Pond State Park,
moving south at 30 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in central Tippah...Alcorn...northern Prentiss...southeastern
Hardeman and southwestern McNairy Counties should monitor this storm
closely.

LAT...LON 3460 8877 3460 8884 3495 8902 3499 8902
      3499 8904 3507 8908 3516 8853 3470 8834
TIME...MOT...LOC 0533Z 343DEG 27KT 3503 8883

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