Special Weather Statement, NWS Tallahassee, FL

Area Forecast Discussion
National Weather Service Tallahassee FL
348 PM EDT Mon Aug 10 2020

.NEAR TERM [Through Tuesday]...

The combination of plentiful moisture, high instability, and some
synoptic forcing from a mid/upper trough over the southeast states
has allowed for scattered convection to prevail this afternoon.
Showers and thunderstorms are ongoing in the Big Bend and along the
northern half of our forecast area. Locally strong wind gusts, heavy
downpours, and frequent lightning have been the main threats,
necessitating the issuance of several Significant Weather
Advisories today. Convection is expected to persist into the
evening hours, but focus near the I-75 corridor tonight closer to
the more favorable forcing for ascent, offsetting the loss of
daytime heating. Some models are suggesting that a large storm
cluster forms near the northeast CWA boundary, so kept likely PoPs
with a chance of thunder extending from Turner/Worth to Lowndes
County.

Farther upstream, a large convective complex is surging southward
from northern GA. This system is forecast to enter our northern GA
counties overnight into early tomorrow morning. The complex will
likely be weaker than its current state by the time it arrives at
our area because of weak shear, but impulses associated with the
aforementioned trough should help hold the storm cluster together.
Widespread severe weather is not expected, but would not be
surprised if SPC later introduces a marginal risk for potentially
damaging wind gusts. Regardless, high PoPs are forecast just north
of the Tri-state area beginning at 6Z, then spread to the I-10
corridor through the morning. Rain chances then ramp up areawide in
the afternoon through the end of the period as diurnally driven
convection dominates.

Given the moist airmass and light winds in place, some storms will
be effective rainmakers, so there is the potential for localized
flooding. Secondary cell formation is also likely from mesoscale
boundary collisions. High temperatures are forecast to be in the mid
90s, with heat indices generally ranging from 101-105 degrees. Low
temperatures are expected to be in the mid 70s (except along the
immediate coast).

.SHORT TERM [Tuesday Night Through Wednesday Night]...

Widespread convection is expected through the period, especially
during the afternoon and evening hours. This will be in response
to plentiful moisture and instability and a series of weak short
waves passing through. Locally heavy rain and strong to severe
storms likely. Afternoon temperatures will be slightly suppressed
due to clouds and precip.

.LONG TERM [Thursday Through Monday]...

More of the same through the extended period as a very moist
airmass (AOA 2 inch PWAT) remains in place and an upper level
weakness remains over the region. High PoPs and slightly decreased
afternoon temperatures throughout. Daily threat for strong storms
and localized flooding continues.

&&

.AVIATION...
[Through 18Z Tuesday]

Scattered convection will persist thru the afternoon, w/all
terminals (except ECP) having a 18-22Z TEMPO group for TSRA. Gusty
winds and sub-VFR vsbys are possible near storms. Convection
shifts to the I-75 corridor this evening, so kept SHRA thru 6Z at
VLD and ABY. Models also depict a storm cluster moving from the N
overnight/early morning, thus prompting a 9-15Z PROB30 for TSRA at
ABY & VLD. Scattered SHRA/TSRA is expected tmrw afternoon
w/remaining terminals having a PROB30 from 12-18Z.

&&

.MARINE...

Seas look to be less than 2 feet through the period with generally
light winds as well. Isolated to scattered showers and
thunderstorms stay in the forecast through the week with winds and
seas higher in and around thunderstorms.

&&

.FIRE WEATHER...

Moisture will be on the increase which will keep fire concerns
low the next few days. After today, expect lower mixing heights
and an increased potential for patchy fog in the mornings.

&&

.HYDROLOGY...

Afternoon showers and thunderstorms will increase in coverage
through the week with widespread coverage expected across the
area. Generally one to three of rainfall inches is expected but
that will be basin average amounts. Thunderstorms will be moving
slowly and will be efficient rain producers. While river flooding
is not expected, localized flooding is possible.

&&

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not requested. However, spotters are always
encouraged to safely report significant weather conditions when they
occur (while following all local, state, and CDC guidelines) by
calling the office or tweeting us @NWSTallahassee.

&&

.PRELIMINARY POINT TEMPS/POPS...

Tallahassee   74  94  74  92  73 /  20  70  40  80  30
Panama City   79  92  78  91  77 /  10  50  30  70  30
Dothan        74  94  73  94  73 /  60  70  30  70  30
Albany        74  94  74  94  74 /  60  70  40  80  30
Valdosta      74  92  73  90  73 /  60  80  40  90  30
Cross City    75  93  74  91  73 /  20  60  30  70  30
Apalachicola  78  91  77  90  76 /  10  50  30  60  40

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...None.
GA...None.
AL...None.
GM...None.
&&

NEAR TERM...IG
SHORT TERM...Johnstone
LONG TERM...Johnstone
AVIATION...IG
MARINE...Johnstone
FIRE WEATHER...Johnstone
HYDROLOGY...Johnstone

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Special Weather Statement
National Weather Service Tallahassee FL
256 PM CDT Mon Aug 10 2020

ALZ065-066-102045-
Dale AL-Coffee AL-
256 PM CDT Mon Aug 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN DALE AND
NORTHEASTERN COFFEE COUNTIES UNTIL 345 PM CDT...

At 255 PM CDT, Doppler radar was tracking a strong thunderstorm near
Ozark, moving south at 20 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Fort Rucker, Ozark, Newton, New Brockton, Ariton, Mixons Crossroads,
Hunt Field, Dill, Hooper Stage Field, Lowry Mill, Camp Humming Hills,
Mabson, Arguta, Clintonville, Ewell, Roeton, Dale County Lake, Marley
Hill, Camp Alaflo Bsa and Clowers Crossroads.

LAT...LON 3162 8598 3157 8554 3137 8554 3139 8602
TIME...MOT...LOC 1955Z 017DEG 25KT 3148 8571

04-MCD

Special Weather Statement
National Weather Service Tallahassee FL
414 PM EDT Mon Aug 10 2020

GAZ124>127-144>146-102100-
Worth GA-Colquitt GA-Lee GA-Baker GA-Dougherty GA-Terrell GA-
Mitchell GA-
414 PM EDT Mon Aug 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR DOUGHERTY...MITCHELL...LEE...
EASTERN BAKER...WESTERN COLQUITT...SOUTHEASTERN TERRELL AND WESTERN
WORTH COUNTIES UNTIL 500 PM EDT...

At 414 PM EDT, Doppler radar was tracking a strong thunderstorm over
Baconton, or 7 miles southwest of Putney, moving south at 15 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Newton, Albany, Leesburg, Pelham, Putney, Camilla, Baconton, Doerun,
East Albany, Marine Corps Logistics Base, Turner City, Walker, Sale
City, Sasser, Stocks, Radium Springs, Parkerville, Lester, Pritchetts
and Crestwood.

LAT...LON 3183 8394 3109 8389 3114 8452 3188 8430
TIME...MOT...LOC 2014Z 017DEG 49KT 3140 8419

04-MCD

Special Weather Statement
National Weather Service Tallahassee FL
416 PM EDT Mon Aug 10 2020

GAZ129-146>148-159>161-102115-
Berrien GA-Brooks GA-Tift GA-Lanier GA-Lowndes GA-Colquitt GA-
Cook GA-
416 PM EDT Mon Aug 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR COOK...BERRIEN...LANIER...
LOWNDES...BROOKS...EASTERN COLQUITT AND SOUTHEASTERN TIFT COUNTIES
UNTIL 515 PM EDT...

At 416 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles west of Hahira, or 9 miles southwest of Adel, moving south at
15 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Nashville, Adel, Valdosta, Lakeland, Quitman, Moultrie, Tifton,
Hahira, Sparks, Enigma, Omega, Ray City, Norman Park, Lenox, Alapaha,
Pavo, I-75 At Exit 16, Moody Air Force Base, Remerton and Meigs.

LAT...LON 3078 8316 3070 8370 3096 8374 3104 8374
      3104 8375 3127 8379 3148 8336 3148 8329
      3126 8304 3119 8305 3118 8297 3101 8297
TIME...MOT...LOC 2016Z 017DEG 49KT 3103 8353

04-MCD