textproduct: Melbourne

KEY MESSAGES

Issued at 300 AM EDT Fri Oct 2 2026

- Scattered to numerous showers with embedded lightning forecast today with locally heavy rainfall and minor flooding of low lying areas, as well as roadways the primary hazard. Greatest focus Melbourne southward - A Moderate Risk of rip currents exists at all central Florida Atlantic beaches today with a High Risk forecast Tomorrow. Always swim near a lifeguard and never enter the water alone. It is not advised to swim in the water in a High Risk!

- Near to slightly above normal high temperatures are forecast with above normal low temperatures through late week and into early next week; a warming trend is expected through at least this weekend. Heat indices are forecast to reach the low 100s

DISCUSSION

Issued at 300 AM EDT Fri Oct 2 2026

Currently-Today... KMLB radar imagery shows isolated showers over the Treasure Coast, Okeechobee county, and Osceola county. GOES-19 satellite imagery and local observations indicate partly to mostly cloudy skies across east central Florida. Temperatures are currently in the low 70s to low 80s with dew points in the upper 60s to mid 70s. Analysis charts show onshore low level flow in place. Additionally, the Bermuda high (~1023mb) extends across the western Atlantic with an inverted trough near the Bahamas.

Isolated to scattered showers and lightning storms are forecast this morning mainly from Cape Canaveral southwards before rain chances increase from the southeast to northwest across east central Florida into the afternoon. The greatest chance for scattered to numerous showers and lightning storms is between 12PM and 8PM today. Guidance indicates MLCAPE up to 1,000-3,200 J/kg, 0-6km shear up to 5-15kts, PWATs between 2.0-2.4", and 500mb temperatures at -6C to -5C. Thus, the potential exists for isolated strong storms capable of occasional to frequent lightning, wind gusts up to 35-45mph, and heavy rainfall (up to 2-4" in 60 minutes); the greatest potential for heavy rainfall, as well as minor flooding of low lying areas and roadways will be from Cape Canaveral southwards today. Afternoon highs in the upper 80s to low 90s and heat index values up to 98F to 106F degrees are forecast. There is a Moderate HeatRisk which can affect anyone who is sensitive to heat without adequate cooling and hydration.

The Weekend... A mostly persistent forecast is expected through the weekend with onshore flow in place and as high pressure to the north- northeast gradually shifts east over the western Atlantic. Meanwhile, low pressure is forecast to move east over North Carolina on Sunday with a cold front that will extend across the Deep South. However, the aforementioned inverted trough is expected to "wash out" over the Bahamas; this will limit the potential coverage of showers and lightning storms compared to the past couple of days when coupled with a weak west coast sea breeze which will likely result in the highest rain chances across the western interior of east central Florida, as well as west Florida. Additionally, CAMs have trended towards lower rain chances for Saturday and PoPs have the potential to be reduced further through the weekend with future model runs. Scattered to numerous showers and lightning storms are forecast to develop Saturday afternoon and evening with the greatest chances between 2PM-7PM. Expect a similar forecast on Sunday. The potential exists for isolated strong storms capable of occasional to frequent lightning, wind gusts up to 35-45mph, and heavy rainfall (up to 1-2"+ in 60 minutes). Afternoon highs in the upper 80s to low 90s with heat index values up to 98F-106F degrees are forecast. Above normal (~4F-6F+) to near record lows in the mid to upper 70s are forecast. There is a Moderate HeatRisk with small pockets of Major HeatRisk across the Treasure Coast.

Monday-Thursday... Deterministic models and the LREF-clusters are in good agreement that the ridge over the eastern CONUS will break down and weaken into Sunday before a longwave trough deepens over the eastern CONUS, as well as the Deep South on Monday/Tuesday. At the surface, a cold front/stationary boundary is forecast to meander across east central Florida late Monday into Tuesday before stalling over east central Florida - or just to the north - through midweek. Therefore, rain chances remain high each day with likely rain chances (70-90%) through Thursday. Deterministic models show 500mb temperatures at around -5C to -4C which is likely to limit the stronger storm potential when coupled with cloud cover and only moderate MUCAPE values. However, heavy rainfall and flooding of low lying areas, as well as roadways will be a concern each day with slow storm motions and likely training showers/storms forecast. The week will start off with seasonable high temperatures and above normal low temperatures before decreasing behind the front (mainly over and to the north of Melbourne) Tuesday and into midweek. Temperatures will be dependent on the position of the front each day, therefore, there is greater uncertainty than usual in that regard.

MARINE

Issued at 300 AM EDT Fri Oct 2 2026

Currently-Today... Favorable boating conditions are expected outside of showers and lightning storms with onshore low level flow in place. Isolated to scattered generally northwest moving showers and lightning storms are forecast, especially into the afternoon and evening hours. The potential exists for an isolated strong storm or two capable of winds at 34kts or greater. East- southeast winds at 10-15kts with gusts up to 20kts are expected. Seas to 2-3ft with up to 4ft over the Gulf Stream are expected.

Saturday-Tuesday... Mostly favorable boating conditions are expected outside of showers and lightning storms with onshore low level flow in place through Sunday. High pressure is expected to gradually shift east over the western Atlantic to the north of east central Florida before a cold front/stationary boundary is forecast to gradually move southeast over east central Florida on Tuesday. Generally, scattered to numerous/widespread showers and lightning storms are forecast each day with the highest rain chances in the afternoon hours. The potential exists for isolated strong storms capable of wind gusts at 34kts or greater. East- southeast winds at 10-15kts with gusts to 20kts are forecast to weaken on Sunday to 6-12kts before becoming light and variable on Monday. Winds are forecast to gradually increase from north to south across the waters on Tuesday and become hazardous over the Volusia county waters by Tuesday night. Seas to 2-3ft with up to 4ft over the Gulf Stream are forecast.

AVIATION

(12Z TAFs) Issued at 707 AM EDT Fri Oct 2 2026

VCSH at coastal terminals this morning as rounds of showers continue. TEMPOs are included from TIX southward at the top of the 12Z TAF for VIS/CIG reductions beneath heavy downpours. Convective evolution remains uncertain into the afternoon. Continue to maintain VCSH/VCTS wording at all terminals late in the day, and confidence remains too low for TSRA TEMPOs at this time. Shower activity could linger through the evening across the interior with additional rounds of showers continuing along the coast through tonight. East-southeast winds increase near 10 kts, becoming locally higher near showers and storms.

PRELIMINARY POINT TEMPS/POPS

DAB 88 76 87 76 / 40 40 40 20 MCO 90 76 89 75 / 60 20 60 30 MLB 88 77 88 77 / 50 50 40 20 VRB 89 77 89 77 / 50 50 40 20 LEE 90 74 88 74 / 60 40 60 30 SFB 89 76 88 75 / 50 30 60 30 ORL 89 76 88 76 / 60 20 60 30 FPR 88 76 89 76 / 50 50 50 20

MLB WATCHES/WARNINGS/ADVISORIES

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