095
FXUS62 KMLB 091026
AFDMLB

Area Forecast Discussion
National Weather Service Melbourne FL
626 AM EDT Tue Jun 9 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 148 AM EDT Tue Jun 9 2026

- Building moisture will lead to increasing shower and storm
  chances into the weekend.

- Near to slightly above normal temperatures will continue, with
  the increasing humidity leading to greater chances for peak
  heat indices exceeding 100F late this week and this weekend.

- At the beaches, a moderate risk of rip currents continues.
  Always swim near a lifeguard!

&&

.DISCUSSION...
Issued at 148 AM EDT Tue Jun 9 2026

Today-Tonight...Will see rain chances return to the forecast
today, with isolated showers already ongoing over the Atlantic
waters early this morning. A few showers will occasionally drift
onshore into coastal areas prior to sunrise, with PoPs near 20%.

Onshore flow is forecast to bring a wave of moisture over the area
today (PWATs 1.6-2", depending on the model). Initially, any
showers this morning will likely fall as virga until the very dry
mid-levels can be moistened enough to not evaporate the rain
droplets as they fall. This could make for a bit of a race against
the sea breeze, where any showers are carried inland and then
into the western half of the peninsula. However, the sea breeze
itself will help to moisten the lower portions of the column.
Regardless, PoPs remain generally low (20-30%) and the CAMs are
not overly enthused with development in the Melbourne County
Warning Area today. A few lightning storms will be possible, as
MU CAPE increases to near 1000 J/kg. While dry air will be a
limiting factor, a few stronger wind gusts near 45 mph cannot be
ruled out, should any cells be able to take advantage of the dry
air. High temperatures are forecast in the upper 80s to lower 90s.

As any activity drifts into the western half of the peninsula,
PoPs fall below 20% this evening. However, additional showers are
then forecast to develop over the local Atlantic waters overnight,
drifting onshore at times through daybreak Wednesday. Overnight
lows remain in the 70s, with morning temperatures near 80 along
the immediate coast.

Wednesday-Thursday...Surface ridging drifts off of the Southeast
seaboard and into the western Atlantic through midweek. Meanwhile,
mid-level high pressure lingers over the northern Gulf coast.
Models have an unusual amount of disagreement in the amount of
available moisture through Thursday given the timeframe, with a
PWAT difference near 0.8" at times. Have maintained a slightly
wetter solution than the lower PWAT solution (GFS) would suggest,
with PoPs 30-50% west of I-95. Onshore flow continues, increasing
to 10-15 mph behind the sea breeze. Therefore, expect most
activity to develop along the breeze over the interior in the
afternoon, before drifting into the western half of the peninsula
for the evening. Along the coast, PoPs are forecast to be lowest,
near 20%. However, could see a few showers drift onshore into the
Treasure Coast overnight, especially into Thursday morning. High
temperatures in the upper 80s along the coast warm into the lower
to mid-90s over the interior.

Friday-Tuesday...High pressure strengthens over the western
Atlantic this weekend. By Saturday, the surface ridge axis is
forecast to be south of the local area, where it lingers into
early next week. Overall flow becomes light Friday, then becomes
increasingly offshore through the period. However, still expect a
southeasterly sea breeze to develop along the coast most days,
though it will struggle to move inland from the coastal counties
by Sunday. Models are in somewhat better agreement about the
amount of available moisture by the weekend (PWATs ~1.8-2");
however, the ECMWF remains the wetter solution. Regardless, the
increasingly offshore flow pattern favors higher rain chances over
the eastern half of the peninsula and the PoP forecast reflects
this, becoming up to 60-70%. The highest chances are expected
during the afternoons, with the typical sea breeze-driven regime.

Temperatures remain near to slightly above normal, with highs for
most in the lower to mid-90s. Increasing humidity will make it
feel even hotter, with peak heat indices forecast to reach 100-107
Friday into this weekend. Residents and visitors should
plan ahead for a stretch of hotter conditions, especially if
spending extended periods of time outdoors: remain adequately
hydrated, avoid the hottest points of the day, and take frequent
breaks in the shade or an air-conditioned building. Muggy, warm
nighttime temperatures will provide little relief from the daytime
heat.

&&

.MARINE...
Issued at 148 AM EDT Tue Jun 9 2026

Favorable boating conditions prevail through the weekend, as high
pressure lingers over the area. East to southeast flow increases
to 10-15 kts behind the sea breeze each afternoon through late
week. By the weekend, southwesterly flow is expected to prevail,
though will still see a southeasterly sea breeze in the
afternoons. Building moisture will lead to increasing rain chances
each day, with nocturnal activity through late week drifting
onshore into coastal areas. By the weekend, offshore-moving
showers and storms will be possible. Seas 2-3ft.

&&

.AVIATION...
(12Z TAFs)
Issued at 626 AM EDT Tue Jun 9 2026

VFR outside of ISOLD (MVFR) morning showers along the coast, then
afternoon/evening convection into the interior as moisture surges
back into ECFL. Will use "Vicinity" wording and TEMPO groups as
applicable. ERLY winds increasing to 8-12 kts with a few higher
afternoon gusts will again diminish into evening. May still see
an ISOLD shower near coastal terminals in the evening/overnight
period.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  86  75  88  73 /  20  10  20   0
MCO  90  74  91  74 /  30  10  50  10
MLB  88  78  88  77 /  20  10  20   0
VRB  88  77  88  75 /  20  10  20  10
LEE  90  75  92  75 /  30  10  40  20
SFB  90  74  92  73 /  30  10  40  10
ORL  90  75  92  74 /  30  10  50  10
FPR  88  76  88  74 /  20  20  20  10

&&

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

$$

DISCUSSION...Wishard
AVIATION...Sedlock