560
FXUS62 KMLB 120656
AFDMLB

Area Forecast Discussion
National Weather Service Melbourne FL
256 AM EDT Sat Sep 12 2026

...New KEY MESSAGES, DISCUSSION, MARINE...

.KEY MESSAGES...
Issued at 256 AM EDT Sat Sep 12 2026

- Scattered rain and storms continue this weekend, along with
  seasonably hot temperatures and peak heat indices in the low
  100s, staying below Heat Advisory levels.

- A moderate risk for rip currents continues at east central
  Florida beaches. Always swim near a lifeguard and never swim
  alone!

- Temperatures closer to normal by the middle to latter part of
  next week as rain chances remain near to slightly above normal.

&&

.DISCUSSION...
Issued at 256 AM EDT Sat Sep 12 2026

Today-Sunday... A surface ridge axis remains extended over central
Florida today, and light southerly flow continues on the western
extent of the ridge. Showers and occasional storms across the
coastal waters early this morning may brush portions of the coast,
but most areas should remain dry ahead of sunrise. Into late
morning and the early afternoon, development of the east coast sea
breeze should initiate a diurnal pattern of scattered showers and
storms. Coverage increases inland through the remainder of the
afternoon and evening as the sea breeze interacts with prior storm
boundaries and eventually collides with the west coast sea breeze
near the Orlando metro. On Sunday, the influence of the surface
ridge weakens, and southerly winds will become more light and
variable. Otherwise, a very similar pattern of diurnal showers and
storms is expected. Deep moisture will persist through the
period, and heavy downpours within slow moving storms may result
in localized rainfall accumulations of 2-3 inches. A few stronger
storms which develop will be capable of frequent lightning
strikes and localized downburst wind gusts of 40-50 mph each day.

Temperatures remain seasonably hot, mostly reaching the upper 80s
and lower 90s. Muggy conditions will allow peak heat index values to
climb into the triple digits, and values ranging 100-106F will
remain below Heat Advisory criteria. Mild mornings continue with
lows in the mid to upper 70s.

Monday-Friday... Ridging aloft amplifies over the southeast U.S.
early next week as a trough digs through the northeast U.S. and
moves offshore. Surface high pressure quickly fills over the
northeastern seaboard behind the trough, increasing the pressure
gradient. Local onshore winds increase in response, becoming breezy
and gusty on Tuesday and further increasing to around 15-20 mph
on Wednesday. Beyond mid week, greater uncertainty exists within
the synoptic pattern. As the aforementioned trough continues to
move offshore, a broadening area of low pressure rounds the
eastern side of the mid-level ridge anchored over the southeast
U.S. More aggressive deterministic model solutions show this area
becoming a closed low while most ensemble guidance shows a more
broad open wave developing over the southwest Atlantic by mid
week. The area of low pressure continues to round the decaying
ridge over the southeast U.S. into late week, passing over Florida
and into the Gulf. Deep moisture looks to generally persists
through the extended forecast, continuing a period of near to
above seasonal rain chances. Slightly above normal temperatures
are forecast Monday as highs reach the low to mid 90s. Increasing
onshore flow should then gradually reduce temperatures, with highs
mostly ranging the upper 80s by Wednesday.

&&

.MARINE...
Issued at 256 AM EDT Sat Sep 12 2026

Today-Monday...Weakening high pressure will maintain favorable
boating conditions through the weekend and early next week. Light
southerly flow across the local waters today often becomes light
and variable Sunday and Monday. Seas mostly hold around 2 ft, but
reach up to 3 ft far offshore north of the Cape. Isolated to
scattered showers and storms are forecast across the Gulf Stream
late overnight and early each morning. Additional development is
expected near the coast and across the intracoastal waters each
afternoon as the sea breeze develops.

Tuesday-Thursday... Poor to hazardous boating conditions build into
mid week as a cold front moves offshore the northeast U.S. Onshore
winds increasing 10-15 kts Tuesday further increase to 20-25 kts
into Wednesday. Seas 2-3 ft on Tuesday build 6-8 ft on Wednesday in
response. Winds begin to subside Wednesday night, becoming 10-15 kts
Thursday. Similarly, seas subside 4-6 ft Thursday. Increased onshore
flow should favor high coverage of showers and storms over the
waters through the period.

&&

.AVIATION...
(06Z TAFs)
Issued at 124 AM EDT Sat Sep 12 2026

VFR conditions prevailing outside of convection. Scattered showers
and storms begin along the sea breeze at the coast around 17-18Z,
then become numerous as they move inland by around 19-20Z. TEMPOs
have been added, with a collision expected near MCO/ISM/SFB
through 0Z. Convection is forecast to linger through at least 1Z
near the sea breeze collision. Winds remain 10 kts or less through
the period, becoming SE behind the sea breeze.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  90  75  90  75 /  50  30  50  10
MCO  92  76  92  75 /  60  30  60  20
MLB  90  76  90  75 /  50  20  50  10
VRB  89  74  89  73 /  60  20  50  10
LEE  92  76  91  76 /  60  30  60  20
SFB  92  75  91  76 /  60  30  60  10
ORL  91  77  91  77 /  60  30  60  20
FPR  89  74  89  73 /  60  20  60  10

&&

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

$$

DISCUSSION...Law
AVIATION...Wishard