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889
FXUS62 KTAE 161957
AFDTAE

Area Forecast Discussion
National Weather Service Tallahassee FL
357 PM EDT Sun Jun 16 2024

...New NEAR TERM, SHORT TERM, LONG TERM, MARINE, FIRE WEATHER, HYDROLOGY...

.NEAR TERM...
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(Through Monday)
Issued at 316 PM EDT Sun Jun 16 2024

Earlier this morning, scattered showers and thunderstorms were
slowly moving northwest from along the Nature and Forgotten Coasts.
Cloud cover has been increasing through the day as rain and storm
coverage increased. The 12z sounding this morning had PWATs at 1.8"
and indicated enough instability for thunderstorms to develop that
could produce gusty winds and locally heavy rainfall. PoPs today
range from about 30% in Southwest-Central Georgia, to 60-80% for
our Florida counties. Shower and thunderstorm activity is expected
to diminish this evening with slight chances for rain during the
overnight hours.

Upper level high pressure will heavily influence our weather for the
start of the work week with shifting our surface winds to be
easterly with gusts up to around 20 mph. The easterly shift will
usher in drier air, bringing humidity levels down to the low 40%s by
the afternoon, limiting PoPs to about 30% for our Florida counties,
and lower percentages further inland.

Temperatures during this period will be in the mid 90s for Monday
afternoon, with morning lows in the low to mid 70s.
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&&

.SHORT TERM...
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(Monday night through Tuesday night)
Issued at 316 PM EDT Sun Jun 16 2024

We will be sandwiched between two large features during this
period, the first being both upper level and surface high
pressure over the east. The second being a tropical low to our
southwest, in the Gulf near the Bay of Campeche. This will lead to
a tightening pressure gradient over the region and bring
breezy easterly winds to the region. These easterly winds, along
with a drier airmass, should suppress showers and thunderstorms
over southwest GA and southeast AL. Guidance still tries to show
some development over the FL counties, and in particular south of
I-10. This would likely be due to any seabreeze that potentially
collides with the easterly winds.
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&&

.LONG TERM...
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(Wednesday through Saturday)
Issued at 316 PM EDT Sun Jun 16 2024

Dry weather should persist into Wednesday with our eyes then
turning to the tropical wave in the Atlantic Basin. The NHC
continues to highlight a large swath of potential development,
30%, that covers the GA and FL coasts, down to the Bahamas. It`s
too early to determine, what, if any, impacts will come from this
outside of the increased chances for rain and thunderstorms and
perhaps some heavy rain. The timing for this potential disturbance
is Thursday into Friday. We get past this, the Atlantic high
drifts to the south and the upper ridge will have weakened due to
the tropical disturbance. More typical like summertime weather and
convection is expected as flow gradually shifts to the southeast.
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&&

.AVIATION...
(18Z TAFS)
Issued at 122 PM EDT Sun Jun 16 2024

Scattered showers and thunderstorms are developing across our
Florida terminals. This will continue through the evening hours.
Valdosta and Albany may see shower/thunderstorms later this
evening due to the Atlantic seabreeze pushing in from the east.
With these storms, downbursts will be possible, leading to gusty
winds. Also, frequent lightning will be a concern. Convective
activity should diminish after sunset. Winds will be light to calm
overnight before becoming easterly during the day tomorrow.
Following this TAF period, easterly winds may be gusting up to 20
knots for the afternoon.

&&

.MARINE...
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Issued at 316 PM EDT Sun Jun 16 2024

Winds will shift to the east this evening and then hold through
at least Thursday. Look for fresh to strong easterly breezes due
to tightening pressure gradients since we will be situated between
strong high pressure off the U.S. Mid- Atlantic coast and a
deepening tropical low over the southwest Gulf. Small craft
advisory conditions are expected for much of the week ahead with
near gale force gusts possible. Seas will build in response as
well, especially for the waters west of Apalachicola. Easterly
flow will feature the familiar rhythm of nocturnal surges and
afternoon lulls.
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&&

.FIRE WEATHER...
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Issued at 316 PM EDT Sun Jun 16 2024

Mixing heights will be on the rise for the afternoons this week.
Easterly flow will be increasing, starting Monday, due to the ridge
of high pressure that will be to our northeast. Temperatures will be
in the 90s for the daily highs. The warm temperatures and elevated
transport winds around 15-20 mph will lead to high dispersions
(above 80 units) each afternoon through Wednesday. Minimum RH values
are above critical thresholds. Rain chances decrease through
midweek; however, rain chances do return heading into the
weekend.
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&&

.HYDROLOGY...
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Issued at 316 PM EDT Sun Jun 16 2024

Shower and thunderstorms have developed as expected this afternoon.
With the TLH sounding PWAT being at 1.83" this morning and the
current SPC mesoanalysis page now showing about 1.5" to 2.1" over
the region, the atmosphere has moistened quite nicely. The driest
air is over southwest GA, where storms have yet to really from.
The current formation of storms are along and southwest of the
line from about Coffee County, AL to Early County, GA, and then
dips all the way into the FL Big Bend. PWATs are highest here and
if we have training or slow moving storms, there is a risk for
intense rainfall rates within the core of heavier thunderstorms
which could lead to short-lived runoff issues. However, no
widespread or significant flooding is expected.

Rainfall, if any, from Monday through Wednesday will be
hydrologically insignificant. Shower and thunderstorm coverage will
increase from Thursday through Saturday, once again posing the
risk of short-lived runoff issues stemming from intense rainfall
rates beneath the core of heavier thunderstorms. Riverine flooding
is not expected.
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&&

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not requested. However, spotters are always
encouraged to safely report significant weather conditions when they
occur by calling the office or tweeting us @NWSTallahassee.

&&

.PRELIMINARY POINT TEMPS/POPS...
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Tallahassee   74  93  73  93 /  50  30  10  30
Panama City   76  92  76  92 /  20  20  20  30
Dothan        73  93  71  90 /  30  30  10  10
Albany        73  94  71  91 /  40  10   0  10
Valdosta      72  94  71  93 /  20  10   0  20
Cross City    71  93  71  93 /  40  10  10  50
Apalachicola  78  88  78  88 /  30  20  20  40
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&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...High Rip Current Risk through late Thursday night for FLZ108-112-
     114-115.

GA...None.
AL...None.
GM...None.
&&

$$

NEAR TERM...Montgomery
SHORT TERM...KR
LONG TERM....KR
AVIATION...Montgomery
MARINE...KR
FIRE WEATHER...Montgomery
HYDROLOGY...KR/AH