135
FXUS62 KMLB 290620
AFDMLB

Area Forecast Discussion
National Weather Service Melbourne FL
220 AM EDT Sat Aug 29 2026

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

.KEY MESSAGES...
Issued at 220 AM EDT Sat Aug 29 2026

- An active pattern will persist across east central Florida this
  weekend into next week as onshore flow pushes the east coast
  sea breeze inland, with the sea breeze collision each afternoon
  coinciding with peak coverage of activity.

- Warm and muggy conditions persist across east central Florida
  with highs in the upper 80s to mid 90s and peak heat indices
  exceeding 100F. Practicing heat safety will be key in avoiding
  the development of heat-related illness.

- There is a moderate risk of rip currents at all local east
  central Florida beaches today.

&&

.DISCUSSION...
Issued at 220 AM EDT Sat Aug 29 2026

Today-Tonight...Broad mid-level ridging will remain situated
across the Atlantic waters, with some troughing across north
Florida continuing to weaken through today. At the surface, the
Atlantic high is forecast to lift north of the Florida peninsula
as a quasi- stationary boundary draped across the southeastern US
weakens and washes out overnight. Locally, this set-up will keep
east central Florida under a plume of deep moisture, with PWATs
exceeding 2" areawide. Additionally, with the ridge axis shifting
northward, the persistent southerly flow will finally shift,
becoming more easterly both at the surface and gradually aloft.
This will support development of the east coast sea breeze today,
with the onshore flow assisting in its progression inland through
this afternoon. Initial development of isolated showers and storms
along the sea breeze will be possible, with coverage anticipated
to increase as the sea breeze pushes inland. The peak coverage
will occur in association with the east and west coast sea breeze
collision late this afternoon into the evening hours, primarily
across Lake and western Orange and Osceola counties. Storm chances
will increase through the day as the environment becomes more
favorable for development. Daytime heating will lead to increasing
instability across the area, with modest low-level lapse rates
and MUCAPE of 1800 J/kg and greater forecast. Some drier air aloft
will help increase downdraft potential, with DCAPE forecast to
range from 700- 1000 J/kg. Due to these parameters, the primary
storm hazards for today will include frequent lightning strikes,
wind gusts up to 55 mph, and heavy downpours. Minor, localized
flooding cannot be ruled out in some spots, with quick rainfall
accumulations of 1-3" possible. Shower and storm activity will
diminish this evening following the sea breeze collision, with
continued development across the local Atlantic waters forecast
overnight. The persistent onshore flow may mean some activity
makes it to the coast, but chances remain low (20-30%).

Temperatures today are forecast to reach the upper 80s to low 90s
along the coast and the low to mid 90s across the interior west
of I- 95. While peak heat indices will remain below Heat Advisory
criteria, values are still anticipated to range from 100F to 107F.
Adequate hydration, frequent breaks in the shade or A/C, and
wearing lightweight, lightly colored clothing will all be
important in order to prevent heat-related illness. Muggy
conditions will persist into the overnight hours, though lows will
remain near normal in the low to mid 70s.

At the beaches, a moderate risk of rip currents is forecast due
to a developing long-period swell and the onshore flow. Always
swim near a lifeguard and never enter the ocean alone. Heed the
advice of local beach safety officials and posted flags.

Sunday-Friday...Mid-level high pressure will slowly slide
eastward across the southern US through the remainder of the
weekend and into next week, where it is forecast to remain the
predominant feature aloft over Florida. At the surface, broad high
pressure will remain in place, with the ridge axis staying north
of the Florida peninsula. Locally, easterly winds both at the
surface and aloft are anticipated to prevail, supporting
development and intrusion inland of the east coast sea breeze each
afternoon. A moist air mass will remain in place across the
peninsula with PWATs of 2.0-2.3" locally, keeping rain chances
near to slightly above normal (40-80%). Activity will generally
move towards the west coast, with an eventual sea breeze collision
across the interior leading to increasing coverage during the
afternoon and evening hours each day. Storm development will be
possible with this activity, with lightning strikes, gusty winds,
and heavy downpours likely the primary concerns. Shower and storm
activity will diminish into the overnight hours, though continued
development across the local Atlantic waters cannot be ruled out
each night along with a low chance for some light showers moving
onto the coast due to the prevailing easterly flow. Outside of
shower and storm chances, anticipate temperatures remaining
generally near normal with highs in the upper 80s to low 90s and
lows in the low to mid 70s. Humid and muggy conditions will
persist, with a low chance of reaching Heat Advisory criteria in
some spots late next week. Residents and visitors will be
encouraged to remain adequately hydrated if spending extended
periods of time outdoors and also take breaks in the shade or a
building with A/C to help prevent the development of heat-related
illness.

&&

.MARINE...
Issued at 220 AM EDT Sat Aug 29 2026

Generally favorable boating conditions are forecast through this
weekend and into next week. The Atlantic ridge axis will lift
north of the local waters today and remain situated to the north
into next week, resulting in persistent easterly flow locally.
Wind speeds are forecast to generally remain between 5 to 10 knots
through the period. While seas are anticipated to stay below
cautionary criteria, the onshore flow will promote slight building
to 2 to 4 feet, highest across the offshore waters. Isolated to
scattered shower and storm development will be possible in the
persistent onshore flow, with activity moving towards the
peninsula. Cloud-to- water lightning strikes, wind gusts in excess
of 30 knots, heavy downpours, and locally higher seas will all be
possible with activity.

&&

.AVIATION...
(06Z TAFs)
Issued at 132 AM EDT Sat Aug 29 2026

Mainly VFR conditions at ECFL terminals tonight and this morning.
ISO-SCT SHRA and occasional TSRA have been trying to develop over
the Atlantic waters offshore KTIX-KSUA, and may move onshore
through 12Z-15Z. Rogue ISO SHRA may develop INVOF the inland
terminals through early morning. Onshore (E-SE) flow increases to
5-10 kts today, getting the ECSB off to an early start and ushering
the boundary quickly inland. Winds increase to around 10 kts
behind the sea breeze. Could see IS0-SCT TS/SH develop over the
Atlantic waters and move onshore in this flow after 16Z.
Additional TS/SH will develop along and ahead of the quick moving
ECSB, with mostly clear conditions behind the boundary. Sea breeze
collision and highest TS chances in the late afternoon- evening
over the western side of the peninsula, near to west of KLEE.
Stayed VCTS at all terminals except KLEE, where chances are high
enough to warrant a TEMPO. TS may linger after 00Z INVOF of KLEE,
and an early end expected at most other ECFL terminals. Can`t rule
out TS developing over the Atlantic waters and moving onshore
INVOF KVRB-KSUA after the sea breeze moves inland. TS/SH chances
forecast to increase along the coast late Saturday into early
Sunday. Winds become light/VRB again Saturday night.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  89  76  88  76 /  30  30  50  10
MCO  94  76  91  76 /  40  20  70  10
MLB  90  78  90  77 /  30  30  50  20
VRB  90  77  89  76 /  40  30  50  20
LEE  92  76  91  76 /  50  30  70  10
SFB  93  76  91  76 /  40  20  70  10
ORL  93  77  91  77 /  40  20  70  10
FPR  90  76  89  76 /  40  30  50  20

&&

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

$$

DISCUSSION...Tollefsen
AVIATION...Haley