Special Weather Statement, NWS Atlanta, GA

Area Forecast Discussion
National Weather Service Peachtree City GA
344 PM EDT Tue Jul 25 2017

.SHORT TERM /Tonight through Wednesday Night/...

Current radar loop shows showers and thunderstorms mainly across
central GA with some isolated storms across N GA.  A weak surface
trough extending through central Georgia will continue to serve as a
catalyst for convection through this evening and again Wednesday.
expecting these showers and thunderstorm to continue through this
evening and then dissipate by midnight. Will see another round of
redevelopment tomorrow afternoon as the main area of moisture and the
trough does not move much over the next 24 hours. The highest PoPs
tomorrow will again be across central GA in the vicinity of these
aforementioned features with lower coverage expected for north
Georgia. A few thunderstorms could become briefly strong or severe
during peak afternoon/evening heating with locally damaging wind
gusts and heavy rainfall being the primary concerns.

01

.LONG TERM /Thursday through Tuesday/...

Long term period continues to feature a highly anomalous pattern
for this time of year with a full latitude trough this weekend
transitioning to a closed low by early next week. We still are
looking at increased rain chances with timing though much earlier
by some 12 hours Friday afternoon into Friday night. This could
create some issues related to timing of best thunderstorm chances
but for now will continue to advertise likely in the extended.

Deese

&&

.PREV DISCUSSION...

LONG TERM /Wednesday Night through Monday/...

A surface boundary will extend across central GA at the start of
the long term. This would separate somewhat drier air over north
GA from deeper moisture central. However...not expecting the air
mass to become dry enough to remove pops for any length of time. A
strong short wave dropping from the Great Lakes to the mid
Atlantic states should push a another front to the TN Valley on
Friday. Likely pops still look okay for far north GA for that
time...with chance pops elsewhere. The front should continue to
push into central GA as the broad eastern trough deepens over the
weekend. For the first of the week...the southeast is dominated by
a deep upper trough for this time of year. Cyclonic flow over the
southeast will keep chance pops in through the period and
temperatures not as hot as previous days.

41

AVIATION...
18Z Update...
Some SHRA/TSRA mainly across central GA this afternoon with VFR
conditions across the ATL area TAF sites. Things should stay that
way for the ATL area with some isolated showers developing this
afternoon. Will basically see a repeat tomorrow afternoon as the
main frontal boundary has stalled across Central GA. Winds will
stay out of the W-NW over night then turn to the NE around sunrise
and E through Wed afternoon. Wind speeds are expected to stay 10kt
or less.

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

01

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          72  91  71  91 /  20  30  30  40
Atlanta         73  91  74  90 /  20  30  30  40
Blairsville     66  87  67  85 /  20  30  20  30
Cartersville    71  92  72  91 /  20  30  20  30
Columbus        74  93  75  93 /  40  40  20  40
Gainesville     72  89  72  88 /  20  30  30  40
Macon           72  91  72  91 /  40  40  30  40
Rome            72  93  73  92 /  20  20  20  30
Peachtree City  71  92  71  91 /  20  40  30  40
Vidalia         74  87  74  89 /  40  60  40  40

&&

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

SHORT TERM...01
LONG TERM....Deese
AVIATION...01

Hazardous Weather Outlook
National Weather Service Peachtree City GA
1101 AM EDT Tue Jul 25 2017

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-261515-
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-
1101 AM EDT Tue Jul 25 2017

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

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

Scattered showers and thunderstorms are expected across north and
central Georgia this afternoon and evening...however the favored
area for development will be central Georgia. A few strong to
severe thunderstorms will be possible. The main hazards with any
storms that develop will be strong gusty winds, heavy rainfall,
frequent lightning, and small hail.

Given the possibility of multiple
rounds of thunderstorms affecting the same regions, isolated
instances of flash flooding are possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Scattered thunderstorms are possible each day mainly in the
afternoon and evening...a few storms could be strong to
severe.

.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.

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