Special Weather Statement, NWS Tallahassee, FL

Area Forecast Discussion
National Weather Service Tallahassee FL
733 PM EDT Thu May 17 2018

.AVIATION [Through 00Z Saturday]...

A line of TSRA and strong winds moving east near DHN should
diminish this evening with some SHRA lingering in it's wake.
Patchy fog will once again be possible overnight into Friday
morning, but is very dependent on the winds dropping off in a
timely manner. Conditions will range from generally VFR to IFR
around stronger storms or fog overnight. Winds will stay
southerly and under 10 kts, except near TSRA.

&&

.PREV DISCUSSION [324 PM EDT]...

.NEAR TERM [Through Tonight]...

A broad, weak trough will remain in place across the region through
the period, with a lobe of vorticity rounding the base of the trough
overnight. A line of showers and thunderstorms across eastern MS/
western AL at this hour marks the leading edge of this feature.
Given the environment, this activity will progress eastward through
the afternoon and evening hours, yielding a second shot of showers
and storms across portions of the wiregrass late this evening into
the early overnight hours. Drier mid-level air will begin to filter
into the region tonight as the aforementioned lobe of vorticity
advects into the region. This, coupled with wet soils and a moist
boundary layer will support the potential for patchy fog in some
areas late tonight. The limiting factor with tonight's fog potential
will be mixing from non calm surface winds. Warmer high temperatures
this afternoon and continued mostly cloudy conditions through
the period will keep low temperatures in the 70s tonight.

.SHORT TERM [Friday Through Saturday Night]...

A brief break from the rainy conditions looks to set up toward the
end of the short term period. Model guidance shows that deep layer
southerly flow will continue on Friday, and with much of the
region still fairly moist this should support showers and
thunderstorms across interior areas during the afternoon and
evening hours. High temperatures will be on the rise for Friday
with a few areas, particularly in the Florida Panhandle where the
rain chances will be less, seeing highs in the lower 90s.

By Saturday, model guidance is in good agreement that mid level
dry air will advance over the region in the wake of a shortwave
trough moving through the Tennessee River Valley. As a result,
this will keep rain chances below normal for this time of year,
generally in the 20-30 percent range. High temperatures will also
be warmer than the past few days, with some areas having a chance
at reaching the mid 90s.

.LONG TERM [Sunday Through Thursday]...

Model guidance shows a weak trough of low pressure setting up
across the Florida Peninsula by Sunday and with a steady stream of
tropical moisture heading northward, expect rain chances to again
be on the increase Sunday and through the long term period. Though
the surface trough dissipates by Tuesday, aloft, our region will
remain in between ridging across Mexico and east of the Florida
Peninsula, which will favor good chances for afternoon and evening
showers and thunderstorms. High temperatures are expected to stay
a couple of degrees below normal due to all the anticipated
convective activity.

.MARINE...

Generally light winds and low seas are expected for the next
several days. Some increase in easterly flow is expected by Sunday
as a weak trough of low pressure moves near the marine area.

.FIRE WEATHER...

Hazardous fire weather conditions are not expected over the
next several days.

.HYDROLOGY...

Decent rainfall over the last few days has alleviated dry
conditions across much of the region. The heaviest rain has been
across the Suwannee River Basin and westward into portions of the
western Florida Big Bend as well as Southwest Georgia. Some small
rises are occurring on rivers across the region, but all locations
are well below action stages. Additional rainfall over the next
few days does not appear to be significant to warrant a flood
threat.

.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...

Tallahassee   71  89  69  91  69 /  20  40  10  20  10
Panama City   74  86  74  87  72 /  20  20  10  20   0
Dothan        70  88  71  90  70 /  30  50  20  30  10
Albany        70  85  70  90  69 /  30  60  20  30  10
Valdosta      69  87  68  91  68 /  20  50  10  20  20
Cross City    70  86  68  89  69 /  20  30  10  30  20
Apalachicola  74  85  73  85  72 /  10  20  10  10  10

&&

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

NEAR TERM...Pullin
SHORT TERM...Godsey
LONG TERM...Godsey
AVIATION...Humphreys
MARINE...Godsey
FIRE WEATHER...Humphreys
HYDROLOGY...Godsey