Area Forecast Discussion
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000
FXUS62 KKEY 300243
AFDKEY

Area Forecast Discussion
National Weather Service Key West FL
1043 PM EDT Wed Mar 29 2017

.DISCUSSION...
Mean layered ridging persists across the Florida Keys. Satellite
derived moisture products indicate limited moisture beneath the
deep anticyclonic flow. Our 00Z KKEY RAOB sampled 0.91 inches of
PW, with most of it concentrated below 850 mb. The KBYX radar is
echo free and skies are mostly clear. Gentle east to southeast
breezes prevail across the marine district. Temperatures are in
the mid to upper 70s.

.FORECAST...
A formidable mid latitude cyclone sliding east through the
southern Plains will carve out lower heights across the northern
Gulf and southeastern United States overnight and Thursday. Our
resident ridge complex will concede real estate and slide east
into the western North Atlantic. The low level gradient will
tighten, resulting in freshening southeast breezes, especially
late tonight through Thursday night. Rain chances will remain
limited. No changes needed or planned for the forecast.

&&

.MARINE...
Broad high pressure will remain north of the Florida Keys
overnight and Thursday. A weak frontal system will approach the
Keys Thursday night but wash out to the north of the Keys on
Friday. A weak pressure pattern will remain in place Friday night
through Saturday night before another ridge builds across the
Florida Peninsula Sunday through Monday night.

&&

.AVIATION...
VFR and gentle east-southeast breezes will prevail at the EYW and
MTH terminals through the forecast period.

&&

.CLIMATE...
Month to date, Key West has received just 0.93 inches of rain, which
is 0.98 inches below normal.  Historically, Key West observes 5 days
during the month of March with measurable rainfall, and this month
has not been that different, observing 4 such days to date. The
normal rainfall during the month of March is 2.05 inches.  The last
time above normal rainfall was observed in Key West was in 2014 when
3.78 inches was recorded. Rainfall records in Key West date back to
1871.

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...None.
GM...None.
&&

$$

Public/Marine/Fire...CLR
Aviation/Nowcasts....CLR
Data Collection......Fling

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