Special Weather Statement, NWS Atlanta, GA

Area Forecast Discussion
National Weather Service Peachtree City GA
313 PM EDT Fri Aug 2 2019

.SHORT TERM /Tonight through Saturday Night/...

No appreciable change in the general pattern over the region through
the short-term forecast period. Forecast area remains under weak
upper-level troughing as the fairly amplified but static pattern
persists. Ample moisture remains in place with the diurnally driven
cycle of scattered to widespread convection expected to continue.
Model lapse rates fairly weak this afternoon into this evening and
severe threat appears marginal, though certainly not zero. Some
slight steepening of the mid-level lapse rates forecast for
tomorrow, but again, widespread severe thunderstorms do not appear
to be likely. Main threat will be isolated damaging winds and
frequent lightning. Stout precipitable water values and slow moving
storms means some isolated heavy rainfall amounts are likely with
localized flooding possible. Temperatures will remain near seasonal
normals.

20

.LONG TERM /Sunday through Friday/...

The synoptic setup over the CONUS will remain fairly persistent in
the early parts of the extended period. Upper level troughing
extending from the Great Lakes into the Gulf of Mexico will remain
entrenched across our area, wedged between a broad upper level ridge
to the west extending from New Mexico/northwest Texas into the high
plains, and another ridge to the east over the Atlantic Ocean.
Abundant tropical moisture will continue to support scattered to
numerous showers and thunderstorms each afternoon and evening.
Primarily chance PoPs are anticipated during the peak hours each
day, although Sunday could stand as an exception, as a shortwave
embedded within the upper flow could lead to better organization and
coverage, warranting likely PoPs area-wide. Given the deep moisture
across the forecast area, the potential remains for showers and
thunderstorms to remain late into the evening and overnight hours,
so have maintained slight chance to low-end chance PoPs during the
overnight period for much of the extended period. The potential
exists for the development of a few strong to severe thunderstorms
in the afternoon and evening on any given day, with gusty winds
being the primary hazard. Frequent lightning and heavy rainfall are
also likely with any strong to severe thunderstorms that occur.

By mid-week, the trough axis will have slowly shifted to the east of
the forecast area, setting up west to northwest flow aloft on the
back side of the trough. This will allow for some relatively drier
air to build in over north and central Georgia. While diurnally
driven convection will still be present, coverage and chances will
be lower in the later half of the extended period compared to the
earlier half. Have maintained slight chance to low-end chance during
these days, as a result. Temperatures throughout the period are
expected to be near or just above climatological normals, with high
temperatures ranging from the mid 80s in far north Georgia to the
low 90s in central Georgia, and low temperatures ranging from the
upper 60s to low 70s area-wide.

King

&&

.AVIATION...
18Z Update...

Generally VFR conditions expected through 06Z, outside of
convection. Will see IFR ceilings developing and spreading across
the forecast area between 06Z and 12Z, continuing through 14Z then
lifting to mainly MVFR thru 18Z. Scattered to numerous showers and
thunderstorms develop across the area this afternoon, diminishing
after 00Z. Winds will be northeast through southeast 5-9kt,
decreasing to 5kt or less after 00Z.

//ATL Confidence...18Z Update...

In general, moderate, especially concerning timing and extent of
convective coverage this afternoon and evening, and lower ceilings
Saturday morning.

20

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          69  88  69  88 /  50  60  40  60
Atlanta         73  85  73  87 /  50  60  40  60
Blairsville     62  79  64  80 /  50  60  40  70
Cartersville    68  87  68  87 /  50  60  40  60
Columbus        72  88  72  90 /  50  60  40  60
Gainesville     69  84  69  85 /  50  60  40  60
Macon           70  88  70  90 /  50  60  40  60
Rome            68  88  68  87 /  50  60  40  70
Peachtree City  69  86  69  88 /  50  60  40  60
Vidalia         70  89  70  92 /  50  60  40  50

&&

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

SHORT TERM...20
LONG TERM....King
AVIATION...20

Hazardous Weather Outlook...Updated
National Weather Service Peachtree City GA
1115 AM EDT Fri Aug 2 2019

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-030930-
Baldwin-Banks-Barrow-Bartow-Bibb-Bleckley-Butts-Carroll-Catoosa-
Chattahoochee-Chattooga-Cherokee-Clarke-Clayton-Cobb-Coweta-
Crawford-Crisp-Dade-Dawson-DeKalb-Dodge-Dooly-Douglas-Emanuel-
Fannin-Fayette-Floyd-Forsyth-Gilmer-Glascock-Gordon-Greene-
Gwinnett-Hall-Hancock-Haralson-Harris-Heard-Henry-Houston-Jackson-
Jasper-Jefferson-Johnson-Jones-Lamar-Laurens-Lumpkin-Macon-
Madison-Marion-Meriwether-Monroe-Montgomery-Morgan-Murray-
Muscogee-Newton-North Fulton-Oconee-Oglethorpe-Paulding-Peach-
Pickens-Pike-Polk-Pulaski-Putnam-Rockdale-Schley-South Fulton-
Spalding-Stewart-Sumter-Talbot-Taliaferro-Taylor-Telfair-Toombs-
Towns-Treutlen-Troup-Twiggs-Union-Upson-Walker-Walton-Warren-
Washington-Webster-Wheeler-White-Whitfield-Wilcox-Wilkes-
Wilkinson-
1115 AM EDT Fri Aug 2 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 north and
central Georgia this afternoon and into the overnight hours. A few
storms may become strong to severe with gusty winds, heavy rain, and
frequent lightning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday...

Scattered to numerous thunderstorms are expected each day. A few
storms could become strong to severe with gusty winds, heavy rain,
and frequent cloud to ground lightning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

Special Weather Statement
National Weather Service Peachtree City GA
340 PM EDT Fri Aug 2 2019

GAZ034-022015-
Gwinnett GA-
340 PM EDT Fri Aug 2 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GWINNETT COUNTY
UNTIL 415 PM EDT...

At 340 PM EDT...a strong thunderstorm was over Grayson, or near
Lawrenceville...moving east at 5 mph.

  HAZARD...Up to 40 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
Lawrenceville, Snellville, Loganville, Dacula, Grayson, Harbin and
Rosebud.

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 3398 8383 3395 8381 3393 8380 3385 8389
      3379 8397 3377 8401 3379 8409 3397 8406
      3399 8384
TIME...MOT...LOC 1940Z 278DEG 5KT 3388 8399

WIND...40MPH

Special Weather Statement
National Weather Service Peachtree City GA
344 PM EDT Fri Aug 2 2019

GAZ107-022015-
Pulaski GA-
344 PM EDT Fri Aug 2 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN PULASKI COUNTY UNTIL 415
PM EDT...

At 344 PM EDT...a strong thunderstorm was near Ocmulgee Banks, or
near Hawkinsville...moving southwest at 10 mph.

  HAZARD...Up to 40 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
Hawkinsville, Wallace, Hartford, Ocmulgee Banks and Finleyson.

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 3211 8336 3212 8335 3213 8336 3213 8341
      3212 8344 3212 8354 3213 8355 3212 8355
      3212 8361 3219 8361 3229 8344 3218 8329
      3215 8332 3214 8332 3211 8334
TIME...MOT...LOC 1944Z 042DEG 9KT 3219 8343

WIND...40MPH

Special Weather Statement
National Weather Service Peachtree City GA
352 PM EDT Fri Aug 2 2019

GAZ006-022015-
Fannin GA-
352 PM EDT Fri Aug 2 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN FANNIN COUNTY UNTIL 415
PM EDT...

At 352 PM EDT...a strong thunderstorm was near Mineral Bluff, or near
Blue Ridge...moving northwest at 10 mph.

  HAZARD...Up to 40 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
Blue Ridge, Loving, Mineral Bluff and Epworth.

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 3499 8419 3494 8417 3484 8436 3499 8452
TIME...MOT...LOC 1952Z 148DEG 8KT 3496 8432

WIND...40MPH

Special Weather Statement
National Weather Service Peachtree City GA
451 PM EDT Fri Aug 2 2019

GAZ021-032-033-022115-
North Fulton GA-Cobb GA-Cherokee GA-
451 PM EDT Fri Aug 2 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTH FULTON...NORTHEASTERN COBB
AND SOUTHWESTERN CHEROKEE COUNTIES UNTIL 515 PM EDT...

At 451 PM EDT...a strong thunderstorm was over Sweat Mountain, or 9
miles northeast of Marietta...moving northwest at 15 mph.

  HAZARD...Up to 40 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
Marietta, Canton, Sandy Springs, Roswell, Alpharetta, Kennesaw,
Woodstock, Acworth, Holly Springs, Buffington, Mount Bethel, Hickory
Flat, Sweat Mountain, Kellogg Creek, Oak Grove, Kennesaw State
University, Little River Landing, Lebanon, Sandy Plains and Hobgood
Park.

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 3429 8445 3404 8428 3393 8445 3409 8466
      3416 8466
TIME...MOT...LOC 2051Z 142DEG 14KT 3405 8443

WIND...40MPH

Special Weather Statement
National Weather Service Peachtree City GA
511 PM EDT Fri Aug 2 2019

GAZ055-057-022145-
Clayton GA-Henry GA-
511 PM EDT Fri Aug 2 2019

...SIGNIFICANT WEATHER ADVISORY FOR CLAYTON AND SOUTHWESTERN HENRY
COUNTIES UNTIL 545 PM EDT...

At 510 PM EDT...a strong thunderstorm was over Bonanza, or near
Jonesboro...moving west at 5 mph.

  HAZARD...Up to 40 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
Jonesboro, Stockbridge, Riverdale, Hampton, Morrow, Lovejoy, Lake
Spivey, Bonanza, Atlanta Motor Speedway, Jw Smith Reservoir, Eagles
Landing and Irondale.

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 3354 8420 3337 8422 3335 8439 3337 8440
      3338 8439 3339 8440 3341 8439 3342 8440
      3344 8440 3345 8439 3348 8439 3350 8442
      3355 8444 3355 8446 3361 8446
TIME...MOT...LOC 2110Z 093DEG 6KT 3347 8430

WIND...40MPH

Special Weather Statement
National Weather Service Peachtree City GA
528 PM EDT Fri Aug 2 2019

GAZ021-032-022200-
Cobb GA-Cherokee GA-
528 PM EDT Fri Aug 2 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN COBB AND
SOUTHWESTERN CHEROKEE COUNTIES UNTIL 600 PM EDT...

At 528 PM EDT...a strong thunderstorm was over Kennesaw State
University, or near Marietta...moving west at 15 mph.

  HAZARD...Up to 40 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
Marietta, Kennesaw, Woodstock, Acworth, White Water Park, Due West,
Kellogg Creek, Sandy Plains, Oak Grove, Kennesaw State University,
Hobgood Park and Lost Mountain Park.

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 3408 8473 3408 8466 3416 8466 3411 8446
      3395 8449 3394 8472 3395 8472 3395 8474
      3407 8474
TIME...MOT...LOC 2128Z 096DEG 13KT 3405 8457

WIND...40MPH