Area Forecast Discussion
Issued by NWS Jacksonville, FL

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FXUS62 KJAX 290057
AFDJAX

Area Forecast Discussion
National Weather Service Jacksonville FL
857 PM EDT Tue Mar 28 2017

.UPDATE...
Only isolated showers remain this evening for southeastern
Georgia as northwest flow amplifies from a building upper level
ridge across the Gulf. Calm to light westerly winds will allow
moisture off the Gulf to form low clouds and fog late
tonight/early Wednesday. Locally dense fog is possible,
especially along and west of the I-75 corridor. Areas of smoke
from recent wildfires could also exacerbate visibility concerns
in areas east of I-75 as well. Rest of the forecast is on track.

&&

.AVIATION...
VFR conditions are expected this period outside a period of
IFR/MVFR restrictions for fog and some low ceilings late
tonight/early Wednesday morning. Light and variable to mostly calm
winds overnight will allow for some localized dense fog and LIFR
restrictions at the usual fog prone airfields. Winds will
increase mid-morning to around 5-10kts and mostly out of the west
to northwest. Seabreeze is expected to develop tomorrow
afternoon, with southeast winds moving a bit further inland than
today.

&&

.MARINE...
Southerly winds at 10-15 knots diminishing some tonight as
offshore flow develops. Long period swells of 3-5 ft nearshore
and 4-6 ft offshore will keep SCEC headlines offshore through most
of Wednesday. Onshore flow with local sea breezes will develop
again tomorrow afternoon. A strong high pressure center over
eastern Canada will press southward by late Wednesday and
Thursday, pushing a weak frontal boundary to near the Georgia
waters. This front will stall and then move back northward as a
warm front on Thursday night as a cold front enters the
southeastern states. This weather pattern will tighten our local
pressure gradient, with onshore winds gradually strengthening on
Thursday, reaching caution speeds for the near shore and offshore
waters by Thursday evening. Seas will build to Small Craft
Advisory levels in the offshore waters on Friday as winds become
southerly. The front will cross our coastal waters late on Friday
afternoon, with offshore winds developing and remaining at caution
speeds on Friday night. Weak high pressure will then build over
our region this weekend, with winds and seas quickly diminishing
early on Saturday.

Rip Currents: Swells begin to fade tonight/early Wed as offshore
flow develops. Marginal Moderate Risk for Rip Currents will
continue for Wednesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  63  86  61  83 /  20  20  10  40
SSI  64  78  64  76 /   0  10  10  20
JAX  62  86  61  83 /   0  20  10  30
SGJ  61  81  66  82 /   0  10  10  30
GNV  58  88  59  87 /   0  10   0  40
OCF  57  88  59  86 /   0  10   0  30

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...None.
GA...None.
AM...None.
&&

$$

Elsenheimer/Sandrik/Walker



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