Area Forecast Discussion
Issued by NWS Melbourne, FL

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FXUS62 KMLB 251310
AFDMLB

Area Forecast Discussion
National Weather Service Melbourne FL
910 AM EDT Wed Apr 25 2018

.DISCUSSION...
Storm system centered over the Mid Atlc has pulled a cold front into
the FL Straits/Nrn Bahamas. Brisk W/NW flow on the backside of the
H100-H70 frontal trof will tap a dry/stable post frontal airmass...
mrng RAOBs measured PWat values btwn 0.75"-1.00", a sharp H85-H70
subsidence inversion, and avg H85-H50 dewpoint depressions btwn 25-
30C. RAP40 analysis shows sinking mid lvl omega/upr lvl divergence
values, and H85-H70 lapse rates decreasing from arnd 5.0C/KM over
the Treasure Coast/Lake-O region to arnd 2.5C/KM north of the I-4
Corridor.

Weak mid lvl shortwave over the panhandle will rotate down the
backside of the frontal trof into central FL.  Ahead of the
shortwave, a band of enhanced H100-H70 RH btwn 50-60pct will allow
skies to become partly cloudy this aftn, but the overall airmass is
too dry/stable to support precip. Deep wrly flow will preclude the
formation of the east coast sea breeze, while near full sun thru
early aftn will allow temps to warm into the L/M80s.

&&

.AVIATION...Thru 26/12Z.
Sfc Winds: Thru 26/00Z...W/SW 8-12KTS. Btwn 26/00Z-26/03Z...bcmg
W/NW 3-6KTS.

Vsbys/WX/Cigs: VFR all sites.

&&

.MARINE...
Gentle to moderate W/NW breeze thru midday, diminishing to a light
to gentle S/SW breeze in the aftn as a storm system over the Mid
Atlc lifts up the eastern seaboard and loosens the lcl pressure
gradient. Seas 2-4FT nearshore and 3-5FT offshore mainly in a 3-4FT
easterly swell.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...None.

&&

$$

Short Term/Aviation...Bragaw
Long Term/Impact WX...Lascody


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