Special Weather Statement, NWS Atlanta, GA

Area Forecast Discussion...Updated
National Weather Service Peachtree City GA
150 PM EDT Tue Jun 30 2020

...18Z Aviation Forecast Discussion...

.PREV DISCUSSION... /Issued 410 AM EDT Tue Jun 30 2020/

SHORT TERM /Today through Wednesday/...

Increasing clouds across the region this morning as moisture begins
to increase through the short term. Showers are beginning to pop up
across MS/AL and things will continue to ramp up through this
afternoon and evening. Instabilities increase this afternoon so will
definitely see some strong to severe storms. SPC has placed N and
east GA under a marginal risk of severe today with the biggest
threats being gusty winds, lightning, and hail. With moisture
continuing to increase Wednesday, SPC has the entire state under a
Marginal risk with the same threats. PWs today will be in the 1.6
to 1.8in range, increasing into the 1.8 to 2.0in Wednesday. Any
storms that move over an area will drop a decent amount of precip so
will have to keep a close eye on our rivers and streams for some
possible flooding concerns over the next few days. There continues to
be very little shear in this atmosphere so not looking for much in
the way of a tornado threat.

Temps look to stay near seasonal norms with highs Today and Monday
mainly in the 80s to mid 90s. Lows tonight will be mainly in the
upper 60s to lower 70s.

01

LONG TERM /Wednesday Night through Monday/...

Wednesday afternoon and night will continue to see convective driven
thunderstorms as SW flow keeps heat and moisture in the area. A weak
impulse in the upper levels will amplify the storm coverage, and
while a widespread outbreak of severe weather is unlikely,
thunderstorms are likely throughout the CWA. A few of these storms
could become strong to severe with damaging winds as the primary
threat. These storms will likely continue into the overnight hours.

As an upper level low sinks into the gulf on Saturday it continues
to push hot humid air into the southeast, fueling afternoon
thunderstorms through the weekend. The low moves over northern
Florida and into the Atlantic early next week, but the southeasterly
flow will continue to support convection for the rest of the
forecast period.

Temperatures typically hover around average with highs in the upper
80s across the north and lower 90s in south and central Georgia.
Widespread dewpoints in the 70s will keep heat index values in the
upper 90s and lower 100s until the weekend. Dewpoints will begin to
decline as the afore mentioned low pressure moves into the Atlantic
early next week. This will bring some slightly drier air which will
help to moderate heat index values.

Vaughn

&&

.AVIATION...
18Z Update...

VFR conditions are expected to predominate across the forecast area
through this forecast period, outside of scattered convection. Will
see some local MVFR or lower visibilities and possibly ceilings 00Z-
14Z, however chances for impacts at any individual TAF site not high
enough to include in the forecast at this time. Scattered
convection already developing across the southern and western
portions of the forecast area and should continue to develop and
spread east into the evening hours. Best coverage will be between
18Z and 02Z, diminishing overnight. Convective coverage increases
again tomorrow, mainly after 15Z. West to northwest winds 6-10kt,
diminishing to 6kt or less after 00Z.

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

Moderate to high on all elements.

20

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          92  70  87  69 /  50  40  70  40
Atlanta         88  71  85  70 /  50  40  80  60
Blairsville     82  65  79  64 /  60  40  90  60
Cartersville    87  69  84  68 /  60  40  80  60
Columbus        93  73  92  72 /  60  50  60  60
Gainesville     87  69  83  69 /  50  30  70  60
Macon           93  72  91  70 /  40  40  70  40
Rome            87  69  84  68 /  70  50  80  60
Peachtree City  89  70  87  69 /  50  40  80  60
Vidalia         96  74  93  73 /  50  50  70  40

&&

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

SHORT TERM...01
LONG TERM....Vaughn
AVIATION...01

Hazardous Weather Outlook
National Weather Service Peachtree City GA
1153 AM EDT Tue Jun 30 2020

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-011600-
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-
1153 AM EDT Tue Jun 30 2020

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

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

Scattered thunderstorms are possible today becoming more
widespread this afternoon and into the evening. Some of these
storms could become strong to severe with damaging winds, heavy
rain and frequent lightning.

Heat indices this afternoon will reach into the 100s up to 104 in
parts of central Georgia. Be sure to stay hydrated and take
frequent breaks if spending extended time outdoors.

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

Scattered to numerous showers and thunderstorms will be possible
each afternoon and evening. Gusty winds, frequent lightning, and
heavy rain will be possible with any storms that do develop.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

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Special Weather Statement
National Weather Service Peachtree City GA
146 PM EDT Tue Jun 30 2020

GAZ001-002-011-301815-
Chattooga GA-Walker GA-Dade GA-
146 PM EDT Tue Jun 30 2020

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN CHATTOOGA...SOUTHWESTERN
WALKER AND SOUTHWESTERN DADE COUNTIES UNTIL 215 PM EDT...

At 146 PM EDT...a line of strong thunderstorms was along a line
extending from near Sulpher Springs to near Fort Payne to near Yellow
Creek Falls...and moving east at 20 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 these storms include
Lafayette, Summerville, Trion, Lyerly, Menlo, Naomi, Center Post,
Linwood, Cloudland, Berryton and Chattoogaville.

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 3473 8555 3471 8519 3444 8537 3429 8543
      3429 8546 3472 8556
TIME...MOT...LOC 1746Z 279DEG 19KT 3466 8553 3447 8567 3426 8571

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

Special Weather Statement
National Weather Service Peachtree City GA
202 PM EDT Tue Jun 30 2020

GAZ091-092-104-301830-
Schley GA-Sumter GA-Marion GA-
202 PM EDT Tue Jun 30 2020

...SIGNIFICANT WEATHER ADVISORY FOR SCHLEY...NORTHWESTERN SUMTER AND
SOUTHEASTERN MARION COUNTIES UNTIL 230 PM EDT...

At 202 PM EDT...a strong thunderstorm was over Putnam, or 7 miles
southeast of Buena Vista...moving southeast at 25 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
Americus, Buena Vista, Ellaville, Putnam, Friendship, Doyle,
Bumphead, La Crosse, Draneville and Walls Crossing.

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 3211 8443 3213 8443 3213 8447 3221 8460
      3236 8450 3226 8422 3223 8422 3223 8419
      3210 8417 3204 8431
TIME...MOT...LOC 1802Z 296DEG 20KT 3223 8444

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