074
FXUS62 KMLB 271652
AFDMLB

Area Forecast Discussion
National Weather Service Melbourne FL
1252 PM EDT Mon Jul 27 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 201 AM EDT Mon Jul 27 2026

- A Heat Advisory is in effect for portions of east central
  Florida today, with heat indices 102-109 degrees.

- High temperatures in the 90s and humid conditions will maintain
  hot and humid conditions through at least mid-week. Additional
  Heat Advisories will be possible.

- Increasing moisture late week and into the weekend will lead to
  higher coverage of showers and storms.

&&

.DISCUSSION...
Issued at 201 AM EDT Mon Jul 27 2026

Today-Tonight...Troughiness off of the eastern US sea board is
forecast today, as strong ridging persists over the central
portion of the country. Locally, SW flow prevails, increasing into
the afternoon, but remaining near to under 10 mph overall.
Regardless, this is expected to be enough to limit the inland
extent of the east coast sea breeze today. Thus, there will be little
relief from hot and humid temperatures, as highs rise into the
90s. Heat indices up to 109 degrees are forecast from Orange and
northern Brevard Counties northward, where a Heat Advisory has
been issued, but heat indices 102-107+ are forecast area-wide. When
possible, reschedule strenuous activities to early morning or
evening today.

A limiting factor to the heat will be coverage of showers and
storms. CAMs have been consistent in developing an early cluster
of showers and storms along the Nature Coast near sunrise, which
then moves SW through central Florida into the early afternoon.
This activity will likely drive the heat chances today, though the
highest coverage is forecast to be along the western half of the
peninsula with this first round. The thinking is that this
coverage will be widely scattered enough and/or there will be a
long enough gap in between rounds of convection to allow
temperatures to recover and reach Heat Advisory criteria in the
advisory area. Regardless, additional showers and storms are then
forecast to develop in the mid to late afternoon, with PoPs
generally 40-60% overall today. Storms will be capable of
producing frequent lightning strikes, wind gusts up to 50 mph, and
heavy downpours that may lead to localized flooding. Activity
will move offshore and diminish through the evening and overnight
hours.

Tuesday-Wednesday...Low pressure drops through the Great Lakes
mid-week, flattening the upper level Plains ridge axis over the
Florida peninsula. Meanwhile, the Atlantic ridge axis remains
south of east central Florida. The pressure gradient tightens
between these features through the period, increasing SW flow from
around 10 mph Tuesday afternoon to 15 mph, with gusts 20-25 mph,
on Wednesday afternoon. Ample moisture (PWATs 2-2.15") and the
pinned east coast sea breeze will maintain PoPs 40-60% Tuesday,
before increased convergence aloft keeps PoPs 30-40% Wednesday. A
few strong storms will remain possible, with drier air aloft
leading to DCAPE values near 1000 J/kg. Other storm hazards will
include lightning strikes and locally heavy downpours, which could
produce some localized flooding. W steering flow will see
activity push offshore in the afternoon and evening hours, with
drier conditions overnight.

Hot temperatures in the 90s will continue through mid-week. While
any showers or storms will be a limiting factor to heat, near to
even slightly below normal PoPs will still allow for heat indices
to exceed 100 degrees. Will continue to monitor the need for
additional Heat Advisories for at least portions of the area. The
hottest day this week looks to be Wednesday. Continue to practice
heat safety, regardless of whether a Heat Advisory is issued.

Thursday-Sunday...The Atlantic ridge axis remains across the
Straits of Florida Thursday, as a low pressure system moves
offshore from the Northeast. Aloft, a mid/upper level trough digs
through the Southeast and into Florida, despite the associated
cold front stalling near to just north of the local area. Upper
level support and PWATs near 2" will lead to higher coverage of
showers and storms to end the week. PoPs 50-70% across the area
will linger into Saturday, as continued breezy SW flow pins the
east coast sea breeze. Will see a break from the hotter heat
indices due to higher coverage of clouds and precipitation.
However, highs are still forecast to reach the lower 90s each
afternoon. Coverage of showers and storms returns to nearer to
normal (40-60%) Sunday into early next week, as ridging develops
aloft.

&&

.MARINE...
Issued at 201 AM EDT Mon Jul 27 2026

Today-Tuesday...Generally favorable boating conditions prevail
early this week, as the Atlantic ridge axis remains south of the
local area. SW flow will increase to around 10 kts, especially in
the afternoons, preventing the east coast sea breeze from
developing. Near normal shower and thunderstorm coverage (40-60%)
is forecast, with activity developing over land, then moving
offshore in the afternoons and evenings. Seas 2-3 ft.

Tuesday Night-Saturday...A low pressure system moves offshore from
the Northeast US mid-week, tightening the pressure gradient
locally. SW flow increases to 15-20 kts Tuesday night through
Thursday night. Winds could reach 20-25 kts briefly Wednesday
night well offshore. Seas build to 2-4 ft, with up to 5 ft
possible north of Sebastian Inlet Wednesday night. Boating
conditions improve into Friday and the weekend, as SW flow
diminishes and seas return to 1-3 ft. However, will see an
increase in shower and thunderstorm coverage through the period,
with activity moving offshore.

&&

.AVIATION...
(18Z TAFs)
Issued at 1252 PM EDT Mon Jul 27 2026

Morning showers have lessened confidence in where convection will
develop this afternoon. Based on latest guidance and trends, it
seems heightened coverage will be favored near SFB/LEE/DAB, and
MLB southward, where more heating is occurring and boundary
interactions should take place. PROB30 for TS at MCO looks on
target due to the slightly lower expected coverage in the
vicinity. Storms should diminish after sunset. Similar to
yesterday, will be monitoring for convective gusts over 35 KT from
the strongest storms and brief IFR/LIFR. Light WSW flow up to 12
KT persists.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  76  94  78  95 /   0  40  10  10
MCO  77  95  78  95 /  20  60  20  30
MLB  76  92  77  93 /  30  40  10  20
VRB  74  92  75  93 /  30  50  10  20
LEE  79  94  79  93 /  30  50  10  30
SFB  78  95  79  95 /  10  50  10  20
ORL  78  94  79  94 /  20  60  10  30
FPR  74  91  75  93 /  30  50  10  30

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...Heat Advisory until 8 PM EDT this evening for FLZ041-044>046-141-
     144-247-347-447.

AM...None.
&&

$$

DISCUSSION...Wishard
AVIATION...Heil