Special Weather Statement, NWS Atlanta, GA

Area Forecast Discussion
National Weather Service Peachtree City GA
310 PM EDT Sat Aug 24 2019

.SHORT TERM /Tonight through Sunday Night/...

To begin the short-term period, a weak frontal boundary remains
positioned across far northern Georgia. Surface high pressure
pushing eastward towards northern Maine is giving this front a
southward push, setting up a wedge front over northeastern Georgia.
The boundary is interacting with deep atmospheric moisture over the
forecast area as it moves southward to quickly generate convection.
Scattered showers and thunderstorms are ongoing across portions of
north and central Georgia, and are expected to become more
widespread in the mid to late afternoon hours. Given abundant
moisture, with precipitable water values in excess of 2 inches,
stronger storms that occur could produce heavy downpours which could
lead to localized flash flooding concerns. Moreover, with SBCAPE values
around 3000 J/kg and DCAPE values of 500-800 J/kg, along with the
potential for heavy precip-loading, there is a chance that
several thunderstorms could become strong to severe this afternoon
and evening. Damaging wind gusts will be the primary hazard with
any severe thunderstorms that occur.

With deep moisture remaining in place, it is likely that some
convection will linger into the overnight hours. The wedge front
will continue to make steady progress to the south and west tonight,
allowing cool easterly surface flow to set up behind the front. On
Sunday, the boundary is expected to reach west-central Georgia,
allowing for a cooler and more stable airmass to set up over the
majority of the forecast area. Thus, the highest precipitation
chances on Sunday will be concentrated along the western and
southern portions of the area. However, some scattered activity
within the wedge is not out of the question. The cool, low-level
easterly flow building into the area tonight and Sunday will bring
about a noticeable and welcome temperature change through the
remainder of the period. In stark contrast to the mainly above-
average temperatures throughout most of the month of August, high
temperatures on Sunday are anticipated to be as much as 10 degrees
cooler than climatological normals, with upper 70s in north Georgia
and low to mid 80s in central Georgia.

King

.LONG TERM /Monday through Saturday/...

Mid level ridging gets shoved offshore by Monday as a long wave
trough moves slowly east across the SE US. The trough looks to begin
moving through the CWA later Tuesday into Wednesday...and remains
across the SE US through most of the week and even gets reinforced
during the late week.

At the surface, the wedge should continue to hold strong until later
Tuesday/early Wednesday as a weak frontal boundary/mid level trough
begins to push through the area. High pressure builds in behind the
frontal boundary through the end of the week into the early part of
the weekend. The first part of the work-week should have the best
chances for precipitation, with the wedge in place and a weak
frontal boundary moving through.

Below normal temps will continue for Monday with the strong wedge in
place. Temps do begin to increase to normal or slightly above normal
for this time of year Tuesday through the end of the week as the
wedge gets wiped out and high pressure builds in behind the FROPA.

NListemaa

&&

AVIATION...
18Z Update...
Mainly VFR conditions are expected through this afternoon as lowered
ceilings from earlier have scattered out and have been replaced
with a BKN cu field at 035-040. Scattered SHRA/TSRA is developing
across the forecast area, with peak coverage anticipated in the
mid-late afternoon. TEMPO groups for TSRA are in place at all
sites starting at 18-19Z. Some activity is moreover anticipated to
linger into the overnight hours until around 06-07Z. MVFR ceilings
will start to spread over TAF sites from east to west after 00Z
and drop down to IFR after 06-07Z, remaining through the morning
hours Sunday. Winds are expected to be E through the period,
starting out at 4-8 kts this afternoon then increasing to roughly
8-10 kts after 06Z.

//ATL Confidence...18Z Update...
Medium to high confidence on all elements.

King

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          67  79  67  80 /  40  30  30  40
Atlanta         69  79  69  79 /  60  40  40  60
Blairsville     62  73  62  73 /  50  30  40  60
Cartersville    69  79  68  79 /  50  40  40  70
Columbus        73  84  72  84 /  50  50  50  70
Gainesville     66  76  67  76 /  40  30  30  50
Macon           71  83  70  85 /  60  40  30  50
Rome            69  79  68  79 /  50  40  50  70
Peachtree City  69  81  69  81 /  60  40  40  70
Vidalia         73  86  71  88 /  70  40  40  40

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...King
LONG TERM....NListemaa
AVIATION...King

Hazardous Weather Outlook
National Weather Service Peachtree City GA
328 PM EDT Sat Aug 24 2019

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-251930-
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Forsyth-Hall-Banks-Jackson-Madison-Polk-Paulding-Cobb-
North Fulton-Gwinnett-Barrow-Clarke-Oconee-Oglethorpe-Wilkes-
Haralson-Carroll-Douglas-South Fulton-DeKalb-Rockdale-Walton-
Newton-Morgan-Greene-Taliaferro-Heard-Coweta-Fayette-Clayton-
Spalding-Henry-Butts-Jasper-Putnam-Hancock-Warren-Troup-
Meriwether-Pike-Upson-Lamar-Monroe-Jones-Baldwin-Washington-
Glascock-Jefferson-Harris-Talbot-Taylor-Crawford-Bibb-Twiggs-
Wilkinson-Johnson-Emanuel-Muscogee-Chattahoochee-Marion-Schley-
Macon-Peach-Houston-Bleckley-Laurens-Treutlen-Stewart-Webster-
Sumter-Dooly-Crisp-Pulaski-Wilcox-Dodge-Telfair-Wheeler-
Montgomery-Toombs-
328 PM EDT Sat Aug 24 2019

This Hazardous Weather Outlook is for portions of North and
Central Georgia.

.DAY ONE...This Afternoon and Tonight...

Scattered to numerous thunderstorms are expected across much of
north and central Georgia this afternoon into tonight. A few
storms could be strong to severe with gusty winds, small hail,
frequent lightning and locally heavy rainfall possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday...

Scattered to numerous thunderstorms are expected across much of north
and central Georgia through Thursday...mainly in the afternoons
and evenings. A few storms could be strong to severe with gusty
winds, frequent lightning and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not requested but spotters are encouraged
to submit reports of severe weather through the web by going to
weather.gov/atlanta.

Special Weather Statement
National Weather Service Peachtree City GA
258 PM EDT Sat Aug 24 2019

GAZ067-241930-
Meriwether GA-
258 PM EDT Sat Aug 24 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MERIWETHER COUNTY UNTIL
330 PM EDT...

At 258 PM EDT...a strong thunderstorm was near Luthersville, or 9
miles north of Greenville...moving east at 20 mph.

  HAZARD...40 to 50 mph wind...frequent cloud to ground lightning
           and heavy rain.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects. Heavy rain may cause temporary
           street flooding especially in poor drainage areas.

Some locations in the path of this storm include
Greenville, Woodbury, Luthersville, Lone Oak, Gay, Alvaton, Rocky
Mount, Saint Marks, Imlac and Wooster.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3322 8483 3322 8472 3323 8470 3322 8469
      3323 8465 3322 8465 3322 8451 3320 8449
      3318 8451 3310 8452 3310 8453 3308 8451
      3308 8452 3305 8452 3304 8454 3298 8452
      3296 8454 3310 8486
TIME...MOT...LOC 1858Z 287DEG 17KT 3317 8476

WIND...50MPH

Special Weather Statement
National Weather Service Peachtree City GA
314 PM EDT Sat Aug 24 2019

GAZ056>058-241945-
Butts GA-Spalding GA-Henry GA-
314 PM EDT Sat Aug 24 2019

...SIGNIFICANT WEATHER ADVISORY FOR BUTTS...EASTERN SPALDING AND
SOUTHEASTERN HENRY COUNTIES UNTIL 345 PM EDT...

At 313 PM EDT...a strong thunderstorm was over Jenkinsburg, or near
Jackson...moving southeast at 15 mph.

  HAZARD...40 to 50 mph wind...frequent cloud to ground lightning
           and heavy rain.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects. Heavy rain may cause temporary
           street flooding especially in poor drainage areas.

Some locations in the path of this storm include
Jackson, Locust Grove, Flovilla, Jenkinsburg, Worthville, McKibben,
Indian Springs State Park and Stark.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3343 8405 3338 8388 3337 8386 3334 8386
      3333 8384 3330 8383 3327 8383 3325 8381
      3321 8383 3319 8381 3318 8382 3320 8384
      3320 8403 3326 8414
TIME...MOT...LOC 1913Z 294DEG 15KT 3332 8402

WIND...50MPH

Special Weather Statement
National Weather Service Peachtree City GA
316 PM EDT Sat Aug 24 2019

GAZ112-113-241945-
Toombs GA-Montgomery GA-
316 PM EDT Sat Aug 24 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN TOOMBS AND SOUTHEASTERN
MONTGOMERY COUNTIES UNTIL 345 PM EDT...

At 316 PM EDT...a strong thunderstorm was over McNatt Falls, or 7
miles northwest of Plant Hatch...moving southeast at 15 mph.

  HAZARD...40 to 50 mph wind...nickel sized hail and frequent cloud
           to ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects.

Some locations in the path of this storm include
Uvalda, Alston, English Eddy, Grays Landing, Cedar Crossing,
Charlotteville and McNatt Falls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3191 8225 3194 8228 3193 8230 3195 8231
      3193 8231 3194 8238 3196 8238 3195 8239
      3197 8244 3197 8248 3196 8250 3195 8248
      3195 8249 3196 8251 3196 8254 3198 8255
      3208 8249 3200 8221 3191 8223
TIME...MOT...LOC 1916Z 294DEG 15KT 3197 8246

HAIL...0.88IN
WIND...50MPH

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