Area Forecast Discussion
Issued by NWS Melbourne, FL

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FXUS62 KMLB 090225

Area Forecast Discussion
National Weather Service Melbourne FL
925 PM EST Thu Dec 8 2016


...Hazardous Boating Conditions Developing Overnight and Continuing

Overnight...Rather strong high pressure over the mid section of the
country will build slowly southeast and provide northerly low level
winds/cool air advection locally.  A broad mid-upper level trough
over the eastern U.S. was increasing moisture aloft, with satellite
showing mostly cloudy skies across the area. Evening soundings at
Tampa and Cape Canaveral showed a dry layer just off the surface,
while Jacksonville had a deeper dry layer and Miami was very moist.
Chances for measurable rain will be low in the north and think there
will be just sprinkles there. Forecast soundings even show the low
level dry layer holding on in the south, so the chance for light
rain there looks to be 30 percent or less.

Have increased cloud cover to reflect the latest satellite imagery.
These clouds will likely affect low temperatures some. Am not
confident enough to make any major changes though, since high
pressure building in will slowly strengthen low level cold advection
and partially compensate for the extensive cloud cover.  Min temps
may occur slightly after 12z in a few spots.  Generally expect lows
in the upper 40s around the Ocala National Forecast and around 60
right along the Treasure Coast.

Friday...Band of mid/upper level moisture will transition slowly
east southeastward through the forecast area.  Some low level
cloudiness should move onshore along the coast in the afternoon as
low level flow veers to the NNE. Mid level lift will keep low
chances for light rain across central/southern sections, then a
gradual transition toward the Treasure coast is expected into late
afternoon. Breezy north winds and cloudy skies (with only a little
late day sun in the north) will hold high temps down...around 60 for
Lake county to around 70 along the Martin county coast. Expect a
strong longshore current at the beaches and rough surf by late
morning and afternoon.


Low level dry air will result in mainly VFR, though increasing
moisture aloft will produce some sprinkles or light rain at most of
the terminals into Fri morning.


Tonight-Friday...High pressure building out of the mid section of
the country will tighten the pressure gradient and provide a gusty
northerly wind flow starting overnight and lasting through Fri.
Hazardous boating conditions will greet any early morning mariners
looking to go out on the waters.  A small craft advisory will
encompass all of the Atlantic waters by sunrise Fri.


AM...Small Craft Advisory from 10 PM this evening to 11 AM EST
     Saturday for Flagler Beach to Volusia-Brevard County Line 0-
     20 nm-Flagler Beach to Volusia-Brevard County Line 20-60 nm-
     Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
     Volusia-Brevard County Line to Sebastian Inlet 20-60 nm.

     Small Craft Advisory from 7 AM Friday to 11 AM EST Saturday for
     Sebastian Inlet to Jupiter Inlet 0-20 nm-Sebastian Inlet to
     Jupiter Inlet 20-60 nm.



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