Area Forecast Discussion
Issued by NWS
FXUS62 KTAE 160806
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
406 AM EDT Sun Jun 16 2013
.SHORT TERM [Today]...
The upper level ridge will flatten today as a shortwave translates
for the Midwest to the mid-Atlantic states. At the surface, winds
will veer becoming more southerly and bring increasing low level
moisture to the Tri-state region. Although we should see an
increase in convection today, will keep PoPs below climatology for
most areas as the mid levels remain fairly dry. Highs will be around
90 to the lower 90s inland areas and upper 80s along the coast.
.SHORT TERM [Tonight Through Tuesday]...
The large scale longwave pattern commences with full latitude
ridging over wrn states, zonal to weak cyclonic flow Ewd to Ern
seaboard and a ridge nosing NEWD across Cntrl Gulf with large but
weakening upper high south of LA coast. Several impulses will
ride Ewd in zonal flow with one slated to cross late tonight into
Mon. At surface, high continues to move Ewd off Carolina Coast
with axis SWWD across local region and into Cntrl Gulf. With high
shunted Ewd, local flow continue to veer and weaken bringing a
modest increase in low level moisture and small chance of evening
During the rest of the period, as westerlies drop to the SE,
additional upper impulses will move Ewd across Mid-South/Nrn Gulf
region transitioning zonal flow to a more amplified cyclonic
pattern each day. At the surface, the weakened gradient flow will
favor the development of afternoon gulf seabreezes. With low level
flow becoming SWLY, area PWATS will rise to between 1.5 and 1.8
inches. Also by late Tues, impulses will push upstream cold front
SWD reaching Nrn AL/GA placing local area increasingly in warm
sector. An impulse may also drop far enough south to impact our Nrn
tier counties and combined with approaching front and seabreeze/
outflow clashes will generate at least sct storms and if all comes
together, some storms could be strong to isold pulse severe.
Thus, PoPs are expected to be a bit higher each day, 20-40% S-N
gradient on Mon, and 20-50% on Tues. Under onshore flow, expect
inland lows each night 70 to 73 degrees. Inland highs each afternoon
will range from 90 to 94 degrees.
.LONG TERM [Tuesday Night through Saturday]...
A fairly seasonal period is expected with scattered afternoon and
evening convection each day. Temperatures are expected to remain
near their seasonal averages.
.AVIATION...[Through 06z Monday]
There is a possibility for a few hours of MVFR ceilings around
daybreak. Otherwise, VFR conditions are expected to prevail across
the region for this TAF cycle. Isolated to scattered thunderstorms
are expected to develop this afternoon but coverage will be too low
to justify anything more than a vicinity thunderstorm in this
Easterly winds are expected to surge to near cautionary levels east
of Apalachicola into this morning then diminish by late morning on
Sunday. Winds and seas are then expected to remain low through the
middle of next week.
Red flag conditions are not expected anytime soon.
River gages are expected to remain below flood stage for at least
the next several days.
.PRELIMINARY POINT TEMPS/POPS...
Tallahassee 91 72 93 71 93 / 30 20 30 10 20
Panama City 87 75 86 75 85 / 30 10 20 10 20
Dothan 92 72 93 73 92 / 30 20 40 20 40
Albany 92 72 94 73 92 / 30 20 40 30 40
Valdosta 90 72 92 70 93 / 30 20 40 20 30
Cross City 91 71 91 70 91 / 40 20 20 10 20
Apalachicola 86 75 84 75 85 / 20 10 10 10 20