Area Forecast Discussion
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000
FXUS62 KKEY 290250
AFDKEY

Area Forecast Discussion
National Weather Service Key West FL
1050 PM EDT Wed Jun 28 2017

.DISCUSSION...
Data from the Key West evening radiosonde balloon indicated a
moderately unstable atmosphere with some low-level convective
inhibition. However, considerable dry air was evident at low
altitudes, as evidenced by a dewpoint depression of 9C at 925 mb.
This dry air has been a significant limiting factor for deep
cumulus convection this evening, with low coverage of showers and
thunderstorms thus far across the service area. Currently, air
temperatures in most Keys island communities are in the mid 80s,
with dewpoint temperatures in the mid 70s. Winds are east, on
average, at 5-10 mph.

Forecasts are on track for the overnight, with no significant
updates anticipated.
&&

.MARINE...
No watches, warnings, or advisories are in effect for Florida Keys
coastal waters. A weak surface ridge will extend to the Bahamas
overnight. A ridge of high pressure will exit the eastern United
States and strengthen somewhat through Saturday.
&&

.AVIATION...
Through 29/24Z, prevailing VFR conditions are expected at both EYW
and MTH. Scattered showers with moderate to heavy precipitation
will develop and move mainly from 070 at 4-7 knots, and an isolated
thunderstorm is possible, but not likely. The chance for a sub-VFR
impact at either EYW or MTH is minimal through 29/24Z.
&&


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

$$

Public/Marine/Fire...Kasper
Aviation/Nowcasts....Kasper
Data Collection......Ross/Krastel

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