Special Weather Statement, NWS Atlanta, GA

Area Forecast Discussion...Updated
National Weather Service Peachtree City GA
740 PM EDT Mon May 29 2017

.SHORT TERM /Tonight through Tuesday Night/...
...A Severe Thunderstorm Watch is in Effect for Portions of North
and Central Georgia until 9 PM EDT...

As expected, with ample instability in place, thunderstorms are
quickly developing, primarily in association with an impulse moving
from eastern Alabama into western Georgia. Thunderstorm coverage
will continue to increase, especially ahead of this disturbance as
it traverses the CWA through this evening. SBCAPE values have
already reached in excess of 2000-2500 J/kg which will contribute to
thunderstorm intensification and the increasing possibility of some
severe thunderstorms. Damaging wind gusts will be the primary threat
in the strongest storms with steep low level lapse rates and
plentiful moisture. While some hail is possible, less impressive mid-
level lapse rates will tend to reduce the large hail threat a bit.
Coverage of showers and thunderstorms will gradually diminish
overnight after sunset as daytime heating is lost and the
aforementioned impulse moves eastward.

The cold/stationary front currently residing to our northwest will
continue to slowly sag into to our area on Tuesday. The proximity of
this boundary as well as continuing southwest flow aloft will
contribute to additional scattered showers and thunderstorms on
Tuesday afternoon. Deep layer shear will not be a factor tomorrow as
it is today, so while showers and thunderstorms can again be
expected on Tuesday, threat for strong/severe thunderstorms will be
low.

RW

.LONG TERM /Wednesday through Monday/...
Models are coming into better agreement for the late week system.
Confidence is increasing on showers/tstorms and have therefore
increased probabilities. No other major changes planned. Previous
Long Term discussion follows...

17

PREVIOUS LONG TERM /Tuesday Night through Sunday/...
The long term remains unsettled with basically a west or
southwest flow aloft across the southern states...and low pressure
continuing across the Great Lakes. A moist air mass is expected
to persist and a series of short waves will cross the area through
the period. Breaks in the precipitation will be hard to time. So
the overall pattern remains similar with chance or slight chance
pops each period. GFS/ECMWF hint at a surface front pushing into
GA Wednesday night into Thursday with somewhat drier air but not
confident enough on this to make any big pop changes.

41

&&

.AVIATION...
00Z Update...

Mainly VFR conditions currently outside of convection. Should see
scattered MVFR or lower conditions developing by 06Z and impacting
most TAF sites to some extent between roughly 08Z and 16Z. Light
westerly winds, 5kt or less, will prevail through 14Z, increasing to
7-10kt after. Isolated convection across northwest Georgia and
northern Alabama is expected to diminish between 00Z and 06Z as we
lose surface heating. Right now I do not anticipate any impacts at
the TAF sites. Scattered convection will redevelop Tuesday, mainly
between 16Z and 04Z.

//ATL Confidence...00Z Update...

Medium most elements, especially concerning timing of any convection
and MVFR or lower conditions early Tuesday.

20

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          66  81  64  85 /  60  40  20  20
Atlanta         67  79  65  83 /  60  40  20  20
Blairsville     60  78  58  78 /  60  30  20  30
Cartersville    65  80  62  83 /  60  40  20  20
Columbus        70  84  67  86 /  30  40  20  20
Gainesville     65  79  64  82 /  60  40  20  20
Macon           68  85  66  86 /  30  40  20  20
Rome            65  82  61  84 /  60  40  20  30
Peachtree City  66  80  63  83 /  50  40  20  20
Vidalia         72  89  70  89 /  20  30  20  20

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Severe Thunderstorm Watch until 9 PM EDT this evening for the
following zones: Baldwin...Banks...Barrow...Bartow...Bibb...
Bleckley...Butts...Chattahoochee...Cherokee...Clarke...Clayton...
Cobb...Coweta...Crawford...DeKalb...Douglas...Fayette...
Forsyth...Glascock...Greene...Gwinnett...Hall...Hancock...
Harris...Henry...Houston...Jackson...Jasper...Jefferson...
Johnson...Jones...Lamar...Macon...Madison...Marion...
Meriwether...Monroe...Morgan...Muscogee...Newton...North
Fulton...Oconee...Oglethorpe...Paulding...Peach...Pike...
Putnam...Rockdale...Schley...South Fulton...Spalding...Stewart...
Talbot...Taliaferro...Taylor...Twiggs...Upson...Walton...
Warren...Washington...Webster...Wilkes...Wilkinson.

&&

SHORT TERM...RW
LONG TERM....17
AVIATION...RW

Hazardous Weather Outlook
National Weather Service Peachtree City GA
434 AM EDT Mon May 29 2017

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-300845-
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-
434 AM EDT Mon May 29 2017

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

.DAY ONE...Today and Tonight...

A few thunderstorms may become severe mainly this afternoon and
evening.

A frontal boundary will approach north Georgia today...giving
increased chances for showers and thunderstorms. Afternoon heating
will help to support a few strong to severe thunderstorms with
damaging wind gusts and large hail.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday...

A moist and unstable air mass will remain over north and central
Georgia through the period. There will be a chance of showers and
thunderstorms each day...a few storms possibly 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.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
844 PM EDT MON MAY 29 2017

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

0620 PM     TSTM WND DMG     2 WSW COHENTOWN         33.79N  82.76W
05/29/2017                   WILKES             GA   EMERGENCY MNGR

            TREE BLOWN DOWN OVER ROADWAY ON TIGNALL RD AT MM 15...
            ONE VEHICAL INVOLVED IN AN ACCIDENT BUT NO INJUIES

&&

EVENT NUMBER FFC1700746

THIEM

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
845 PM EDT MON MAY 29 2017

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

0455 PM     TSTM WND DMG     WASHINGTON              33.73N  82.74W
05/29/2017                   WILKES             GA   911 CALL CENTER

            TREE BLOWN DOWN IN WASHINGTON AT S ALEXANDER AND
            BALTIMORE RD

&&

CORRECTED EVENT TIME

EVENT NUMBER FFC1700739

THIEM

Special Weather Statement
National Weather Service Peachtree City GA
845 PM EDT MON MAY 29 2017

GAZ080-081-093>095-300145-
Macon GA-Peach GA-Taylor GA-Houston GA-Crawford GA-
845 PM EDT MON MAY 29 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MACON...PEACH...
TAYLOR...NORTHWESTERN HOUSTON AND SOUTHERN CRAWFORD COUNTIES UNTIL
945 PM EDT...

At 845 PM EDT...a strong thunderstorm was over Butler...moving east
at 30 mph.

  HAZARD...Up to 40 mph wind...pea 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
Perry, Fort Valley, Butler, Warner Robins, Centerville, Byron,
Marshallville, Reynolds, Saint Louis, Nakomis, Meadowdale, Hicks,
Potterville, Lakewood, Powerville, Lee Pope, Fickling Mill and Miami
Valley.

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 3246 8432 3264 8432 3270 8376 3256 8365
      3243 8375
TIME...MOT...LOC 0045Z 268DEG 25KT 3256 8423

HAIL...0.25IN
WIND...40MPH

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>