textproduct: Melbourne

KEY MESSAGES

Issued at 250 PM EDT Sun Oct 4 2026

- A wet, unsettled pattern is forecast to persist across east central Florida through this weekend and into next week. Flooding will be the primary concern, with lightning and gusty winds not able to be ruled out with any storm development.

- A high risk of rip currents continue through the remainder of today at all east central Florida beaches. Entering the surf is not advised!

- Deteriorating beach and boating conditions look possible towards the middle of this week as an area of low pressure moves offshore. This will continue to be monitored closely.

DISCUSSION

Issued at 250 PM EDT Sun Oct 4 2026

Through Tonight...Isolated shower and storm activity developing across east central Florida is forecast to increase in coverage over the next several hours, with the highest coverage anticipated near and north of the I-4 corridor (40-60%). Adequate daytime heating through this morning has helped increase instability across east central Florida and some drier air closer to the surface will assist in increasing downdraft potential this afternoon. Overall, lightning strikes and wind gusts up to 50 mph will be possible with storm activity this afternoon. A moist air mass remains in place across east central Florida, with the GOES19 Total PWAT viewer showing PWATs of 2-2.3". This moisture coupled with some slightly weaker steering flow will increase the risk of minor flooding, with quick rainfall accumulations of 1-3" possible. WPC has expanded the Marginal Risk (1/4) of excessive rainfall to include northern portions of east central Florida, primarily from Orlando to the Cape northward. While there is lower confidence in activity along the coast, some southwesterly flow aloft may push activity towards the east coast late this afternoon into the evening hours. Showers and storms are then anticipated to diminish, with mostly dry conditions forecast through the remainder of tonight. Some isolated development across the local Atlantic waters cannot be ruled out.

Afternoon temperatures remain on track to peak in the upper 80s to low 90s, with peak heat indices of 100F and greater already occurring in some spots across the area. Tonight, warm and muggy conditions persist with lows remaining above normal in the mid 70s.

Monday-Tuesday...Broad mid-level troughing creeps southward across the southeastern US early this week, with shortwaves of energy traversing the trough. At the surface, a frontal boundary drifts southward, approaching north Florida on Monday and stalling across the central Florida peninsula on Tuesday. An area of low pressure is anticipated to develop along the boundary near the Florida Panhandle on Monday, slowly drifting eastward across the state on Tuesday. Overall, this set-up will maintain a deep plume of moisture across east central Florida, with PWATs forecast to exceed 2" areawide, with some guidance indicating values could climb as high as 2.5" in some spots. This moist atmospheric profile coupled with warmer temperatures aloft will limit instability and reduce the amount of downdraft energy available, with lower confidence in seeing strong storm development on either day. Some occasional lightning strikes cannot be fully ruled out at times in addition to an isolated gust up to 45 mph here and there. While storm activity will be limited, the flooding potential increases due to saturated soils and the potential for multiple rounds of showers. WPC has included all of east central Florida in a Marginal Risk (1/4) of excessive rainfall on Tuesday. Flooding of low-lying and urban areas will be possible, and flooded roadways cannot be fully ruled out. Activity is anticipated to continue into the overnight hours each day, with the best chances for overnight activity forecast on Tuesday night as the low pressure moves across the peninsula.

Increasing cloud coverage will help limit daytime heating across the peninsula, which will impact temperatures. Highs on Monday remain warm in the mid 80s to low 90s, trending downward into Tuesday with temperatures generally ranging from the low to mid 80s from Orlando to the Cape northward and in the mid to upper 80s southward. Humid conditions on Monday means there is a chance for some spots to reach peak indices of 100F and greater, with lower confidence in this occurring on Tuesday. Lows remain near to slightly above normal in the upper 60s to mid 70s.

Wednesday-Saturday...The wet pattern will continue across east central Florida through the remainder of this week as the stalled frontal boundary remains draped across central Florida. Guidance remains split on the evolution of the aforementioned surface low riding along the boundary, though a brief period of it lingering off the east coast of Florida on Wednesday looks possible. This would have implications on beach, coastal, and marine conditions. Beyond Wednesday, the Euro and GFS diverge on solutions, with the GFS showing a strengthening low while the Euro trends it weaker. A clearer picture on the evolution of the low is expected as guidance comes into better agreement with time. Regardless of the low, as mentioned, conditions remain wet across the area with above normal rain chances persisting (50-90%). With the moist air mass in place, confidence in storm development remains on the lower side through the remainder of the week. Flooding concerns will continue areawide, especially given the saturated soils and persistent wet pattern. The area will be more sensitive to rainfall by the middle of the week. WPC has already outlooked east central Florida in a Marginal Risk (1/4) once again on Wednesday. Temperatures will generally remain near normal through the remainder of the week.

MARINE

Issued at 250 PM EDT Sun Oct 4 2026

Broad high pressure across the Atlantic is kicked eastward as a frontal boundary moves southward across the southeastern US on Monday, with the boundary stalling across central Florida and the local Atlantic waters into Tuesday. An area of low pressure is forecast to drift eastward along the stalled frontal boundary, with guidance indicating it will push offshore Tuesday night and linger into Wednesday. Beyond Wednesday, guidance diverges on the evolution of the low, though this should become clearer over time as the guidance comes into better agreement.

Generally favorable marine conditions are forecast to be maintained through Tuesday with seas of 2 to 4 feet and winds remaining below 15 knots. Wind directions will be variable through early this week. By Tuesday night, northerly winds increase as the low moves offshore, picking up to 15 to 25 knots. Seas increase as a result, with 4 to 8 foot seas forecast, highest across the Volusia and offshore waters. Small Craft Advisories may be needed across portions of the local Atlantic waters. Slowly improving boating conditions are then anticipated from Thursday onward. A wet pattern is anticipated to persist through this week each day, with above normal rain chances forecast across the local waters. Isolated to scattered storms cannot be ruled out, with lightning, wind gusts in excess of 30 knots, heavy downpours, and locally higher seas all possible.

AVIATION

(18Z TAFs) Issued at 1258 PM EDT Sun Oct 4 2026

Later this afternoon, we expect scattered coverage of showers and storms generally near and northwest of the I-4 corridor. This places LEE in the highest coverage area between 21-24Z. For MCO, will continue with VCTS and monitor trends on radar for a TEMPO if storms develop closer to the terminal. Coastal terminals look to see only showers this afternoon with low overall coverage. VFR prevails outside of convection with SE flow up to 12 kt. On Monday, storm chances increase by afternoon, with many hi-res models indicating broken eastward-moving lines of showers and storms progressing over the peninsula. Gusty winds to 30-35 kt and brief IFR/LIFR can occur in any storms.

PRELIMINARY POINT TEMPS/POPS

DAB 74 86 72 82 / 40 70 60 90 MCO 75 89 74 85 / 40 60 60 90 MLB 76 88 74 86 / 10 50 50 90 VRB 75 89 73 88 / 10 40 40 90 LEE 74 87 72 82 / 60 70 60 90 SFB 75 88 74 83 / 40 70 60 90 ORL 76 88 75 84 / 50 60 60 90 FPR 75 89 73 88 / 10 40 40 90

MLB WATCHES/WARNINGS/ADVISORIES

FL...None. AM...None.