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FXUS62 KMFL 260753
AFDMFL

Area Forecast Discussion
National Weather Service Miami FL
353 AM EDT Wed Sep 26 2018

.DISCUSSION...
A few streamer showers will continue to develop across the
Atlantic waters and move onshore along the e coast metro areas
through the morning. Ridge controlling the weather pattern is
keeping a weak pressure gradient across South Florida through the
middle of the week. This will maintain an e to se flow prevailing
through the end of the week with afternoon sea breeze activity
mainly concentrated along the interior and west Gulf coast. High
temperatures will range from around 90 across the east coast metro
areas to the mid 90s across the interior and west Gulf coast. Heat
index values could range from 100-105 in places across Palm Beach,
Mainland Monroe, and southern Miami-Dade counties. The weather
pattern will not change much for most of the week as easterly flow
is forecast to persist and strengthen across S FL. Easterly flow
will dominate and as a result keeping most of the sea breeze
convection each afternoon concentrated in the west Gulf coast.

This weekend, zonal flow sets up across the north of the CONUS while
Atlantic ridge axis retrogrades and builds over the FL peninsula.
This will allow for the easterly flow to continue through the end of
the period with a typical late summer to early autumn pattern.
Chance of showers and thunderstorms will still be possible across
South Florida but will remain mainly concentrated over the west Gulf
coast. During the overnight hours, showers developing over the
Atlantic could move onshore and stream across the east coast metro
areas. High temperatures will remain in the mid to upper 80s along
the east coast and the 90s along the west Gulf coast through the
forecast period. Pressure gradient will strengthen into next week
increasing easterly flow with brief gusts across South Florida
during the afternoon hours.

&&

.MARINE...The ridge of high pressure that has been dominating the
weather pattern across the local waters will remain in place
through the end of this week. Wind speeds will start to increase
to near advisory levels by the weekend. Small Craft should
exercise caution during the weekend with possible winds around 15
to 20 knots. Gradient will strengthen allowing for possible
Advisory criteria into early next week. Seas will generally remain
below 3 to 5 feet across the Atlantic and Gulf waters through the
weekend but will begin to build close to 7 feet into early next
week. Scattered showers and thunderstorms are possible each day.
Winds and waves could be higher in and around any shower or
thunderstorm.

&&

.AVIATION...Easterly to southeasterly flow continues across the
region through the forecast period with the expectation of sea
breeze development in the late mornings/afternoons. Morning
Atlantic showers should push inland with coverage increasing in
the afternoon along the Gulf sea breeze near APF. Activity should
diminish again in the evening with Atlantic convection returning
overnight.

&&

.PRELIMINARY POINT TEMPS/POPS...
West Palm Beach 90 80 90 79 / 20 20 20 20
Fort Lauderdale 90 80 90 80 / 20 30 30 30
Miami 90 80 90 80 / 20 30 30 30
Naples 93 77 93 76 / 40 20 50 30

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...None.
GM...None.
&&

DISCUSSION...67/MT
MARINE...67/MT
AVIATION...02/RAG
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