Area Forecast Discussion
Issued by NWS Melbourne, FL

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559
FXUS62 KMLB 191932
AFDMLB

Area Forecast Discussion
National Weather Service Melbourne FL
332 PM EDT Tue May 19 2026

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

.KEY MESSAGES...
Issued at 327 PM EDT Tue May 19 2026

- Continued high risk for life-threatening rip currents at all
  central Florida Atlantic beaches. Entering the dangerous surf
  is strongly discouraged!

- Humidity increases late week into the weekend, leading to heat
  index values near or above 100 degrees. A Moderate to Major
  HeatRisk is forecast across east central Florida.

- Isolated to scattered showers and storms will continue each day,
  moving inland toward the west Florida coast by the afternoon and
  evening. Overall, many locations will stay dry.

&&

.DISCUSSION...
Issued at 327 PM EDT Tue May 19 2026

Now-Tonight...Isolated, east-to-west-moving showers are developing
this afternoon in the presence of 1.5-1.6" PW (GOES imagery). Some
cells have produced lightning, more so after reaching interior
portions of east-central Florida (north side of Lake Okeechobee and
northwest of Orlando). About 400 miles to the east of Cape
Canaveral, satellite imagery clearly outlines a spinning upper low
and weak surface trough. Persistent easterlies, sufficient moisture,
and perhaps a small influence from this offshore feature are even
supporting isolated shower development at the coast as of 2 PM. CAMs
have struggled to resolve this shallow-layer precipitation for the
last 24 hours, so decided to update the forecast with a low rain
chance over the waters and immediate coast through tonight into
Wednesday morning. Rain will be hit or miss for most locations with
the greatest chances (30%) focused well inland. Any deeper
convection is expected along the west coast of FL into this evening.
Overnight lows settle into the low 70s inland but will remain in the
mid to upper 70s along the coast.

At the beaches, a high risk of life-threatening rip currents
continues. Entering the surf is strongly discouraged!

Wednesday-Tuesday (modified)...The surface ridge remains over the
western Atlantic through the period, with its axis stretched
generally towards the Carolinas into the weekend. Aloft, the
aforementioned mid to upper level low drifts towards the east coast
of Florida through Thursday-Friday before it weakens and ridging
restrengthens this weekend into next week.

Overall, little change is expected to the Florida peninsula`s
weather pattern over the next seven days. East to southeast flow
increases to around 15 mph with gusts 20-25 mph each afternoon,
especially behind the sea breeze. Embedded isolated to scattered
showers and a few storms will remain possible during the overnight
and early morning hours, occasionally drifting onshore, especially
south of Cape Canaveral. Then, convection focuses over the interior
or western half of the peninsula, with the greatest coverage of
showers and storms along the sea breeze collision in the late
afternoon and evening. Rain chances are generally 15-30% through the
rest of the work week before moisture increases a bit this weekend.
Rain chances tick upward toward 30-50%, but again, not everywhere
will see measurable rainfall. Lingering drier air in the mid-levels
could support a few strong wind gusts in any more developed storms
through Friday before increasing moisture and warming 500mb
temperatures reduce that threat into the weekend.

Onshore flow keeps high temperatures in the upper 80s to lower 90s
each day. However, this will also lead to overnight lows remaining
in the mid/upper 70s, at times even near 80 along the immediate
coast. As moisture increases into the weekend, so do heat indices,
which creep into the upper 90s to low 100s. Humid conditions and
little relief overnight will lead to increasing coverage of Moderate
HeatRisk and even a developing Major HeatRisk for several ECFL
locations (including the Orlando metro). Use caution during the heat
of the day, especially this weekend, by staying hydrated and taking
breaks in an air-conditioned space. A high risk or high-end moderate
risk for rip currents looks to continue through the week into the
weekend, thanks to onshore flow.

&&

.MARINE...
Issued at 327 PM EDT Tue May 19 2026

East-southeasterly flow continues with largely favorable boating
conditions this week into the weekend. Moderate breezes with
occasional gusts 15-20 kt are forecast each day, along with
isolated/scattered shower and lightning storm chances. The greater
risk for rain and storms will be over the FL Peninsula as the east
coast breeze moves westward in the afternoon/evening. However,
shallow, low-level moisture will support at least isolated showers
through the weekend. Seas generally 2-4 ft, up to 5 ft occasionally
well offshore.

&&

.AVIATION...
(18Z TAFs)
Issued at 130 PM EDT Tue May 19 2026

VFR conditions outside of convection through the TAF period. Widely
scattered VCSH ongoing this afternoon, mainly across the interior
moving westward with the inland moving sea breeze. VCSH for all
interior sites and TIX-DAB this afternoon. Will closely monitor
for need of short fused TEMPOs this afternoon. But as of now, do
not have any TEMPOs, and handling with VC wording. East winds
12-15 KT this afternoon with locally higher gusts will decrease to
around 5 KT overnight. East to east-southeast winds will increase
to around 10 KT by 14Z and then increase to 8-12 KT with gusts to
around 20 KT in the afternoon with the east coast sea breeze. Much
like today, scattered showers will be moving onshore through the
morning/early afternoon before transitioning to interior with the
inland moving sea breeze in the afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  72  87  72  89 /  20  20   0  10
MCO  71  91  72  91 /   0  30  10  30
MLB  76  86  76  88 /  20  20  10  20
VRB  75  87  75  88 /  20  20  10  20
LEE  71  91  72  92 /   0  20  10  20
SFB  71  91  72  92 /   0  30  10  30
ORL  72  91  72  91 /   0  30  10  30
FPR  74  87  74  88 /  20  20  10  20

&&

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

$$

DISCUSSION...Schaper
AVIATION...Watson