Area Forecast Discussion
Issued by NWS
FXUS62 KTAE 271909
Area Forecast Discussion
National Weather Service Tallahassee FL
309 PM EDT Thu Apr 27 2017
.NEAR/SHORT TERM [Tonight Through Saturday Night ]...
A low pressure system over the Great Lakes continues to lift
northward into Canada. It`s associated cold front continues to move
through our region with the majority of the rain affecting our
western Panhandle, SE AL and SW GA counties. Most convection is
expected to end around midnight. As the front lifts northeastward,
high pressure begins to build in from the south. With an increase in
cloud cover overnight, lows will be relatively warm in the low 70s.
Cloud cover then decreases allowing temps to rise into the low 90s
on Friday and Saturday. These high land temperatures and southerly
flow will likely allow for a seabreeze circulation to form. However,
with a dry airmass over the region, showers and storms are likely
to be isolated and few. Kept rain chances less than 20% each
.LONG TERM [Sunday Through Thursday]...
A strong shortwave over the Southern Plains Sunday morning will
lift northeastward to the Great Lakes Monday night. The associated
cold front and convection will reach our Alabama and Florida
panhandle counties Sunday night, exiting the southeast Big Bend
sometime Monday night or early Tuesday morning. While the latest
run of the global models show the convection weakening as it
pushes across our CWA, there is the possibility of a severe
weather threat with this system, especially should it slow down or
speed up to take advantage of maximum instability due to daytime
heating. A brief dry period is expected Tuesday through most of
Wednesday before another low pressure system brings rain chances
to the region on Thursday. Highs will begin the period above
average and then become closer to normal from Monday through
Thursday. Lows each night will be above seasonal levels.
.AVIATION [Through 18Z Friday]...
Gusty southerly winds will continue through the afternoon. A few
showers and thunderstorms may impact KDHN and KALB. Overnight,
MVFR/IFR cigs are possible at all terminals.
Winds and seas will gradually elevate to advisory levels by
Saturday night and continue through Sunday night as a cold front
approaches and pushes through the local waters.
Gusty winds this afternoon will decrease tonight. RH will stay above
critical thresholds so there are no fire weather concerns.
Average rainfall amounts with today`s storms are expected to be
around a half of an inch or less, with isolated amounts between
1-2" inches in stronger storms. These totals should mainly be
confined along and northwest of a line from Albany through Destin.
Early indications are that average amounts with our next system
late in the weekend/early next week could average around 1" with
isolated amounts up to 2" possible. These values appear as though
they`ll mostly be confined along and west of a line from Albany
through Tallahassee. River levels remain quite low, with ensemble
guidance not indicating any river flooding across the region over
the next 7 days. Even though ensemble guidance is using the lower
end of the QPF envelope, the higher end estimates likely would not
result in much more than action stage along our most sensitive
rivers. Thus, at this time flooding is not a concern over the next
week or so.
.PRELIMINARY POINT TEMPS/POPS...
Tallahassee 70 89 67 90 69 / 10 10 0 10 10
Panama City 72 81 71 83 72 / 20 10 0 10 10
Dothan 71 87 68 90 69 / 30 10 0 20 10
Albany 70 89 68 92 69 / 30 10 0 10 10
Valdosta 69 91 68 92 68 / 10 10 0 10 10
Cross City 69 90 67 92 67 / 0 10 0 10 10
Apalachicola 72 81 71 82 72 / 10 10 0 10 10
FL...High Rip Current Risk through late tonight for Coastal Bay-
Coastal Franklin-Coastal Gulf-South Walton.