textproduct: Melbourne

KEY MESSAGES

Issued at 300 AM EDT Mon Oct 5 2026

- A Moderate Risk of rip currents is expected at the east central Florida beaches today. Remember to never enter the water alone and always swim near a lifeguard!

- A wet and unsettled weather pattern is forecast to persist across east central Florida through this weekend, as well as into next week. Flooding will be the primary concern along with lightning and gusty winds; a Marginal Risk for excessive rainfall exists on Tuesday and Wednesday

- Poor to hazardous beach and boating conditions are expected towards the middle of this week as an area of low pressure strengthens offshore; a Small Craft Advisory is in effect for portions of the local Atlantic waters beginning Tuesday night

DISCUSSION

Issued at 300 AM EDT Mon Oct 5 2026

Currently-Today... KMLB radar imagery shows dry weather across east central Florida. GOES-19 satellite imagery and local observations indicate partly to mostly cloudy skies over east central Florida. Temperatures are currently in the mid 70s to low 80s with dew points in the low to upper 70s. Analysis charts show the western fringe of the Bermuda high to the east of the local Atlantic waters, in addition to, a cold front over the western Atlantic and Deep South which extends from weak low pressure near the northeastern US coast.

Scattered to numerous generally slow east-southeast moving showers (~30-80% chance) and lightning storms are forecast to develop along and ahead a cold front across east central Florida into the afternoon and evening hours. The greatest chance for rain showers and lightning storms is between 2PM-12AM with the highest chances across areas from Melbourne to Lake Kissimmee northwards. Guidance shows MLCAPE up to 500-2,600J/kg, 0-6km shear up to 10-30kts, PWATs up to 2.0"-2.5" (above the maximum percentile for the date at 2.39"), and 500mb temperatures at -5C to -4C this afternoon. Like the past several days, the stronger storm potential is likely to be somewhat limited due to relatively warm temperatures aloft and cloud cover. However, the potential exists for a strong storm or two capable of occasional to frequent lightning, wind gusts up to 35-45mph, and heavy rainfall (up to 1- 3"+ in 60 minutes). Areas that observe heavy rainfall and repeated rounds of showers/lightning storms will have the potential to result in minor flooding of roadways and low-lying areas. Afternoon highs in the mid 80s to around 90s with heat index values in the mid 90s to 103F degrees are forecast. There is a Moderate HeatRisk today which can affect those sensitive to heat without adequate cooling and hydration.

Tuesday-Wednesday... A wet week is expected as a blocking pattern develops with high pressure (~1024mb over the Ohio Valley/northeastern US) upstream of broad low pressure that is expected to develop over the southwest Atlantic near the Volusia/ Brevard county coasts, as well as high pressure over the western Atlantic. The aforementioned cold front is expected to extend from the low and stall/meander between northern Florida, as well as the middle half of east central Florida through midweek. Numerous to widespread showers (60-90% chance) and lightning storms are forecast to develop each day with the highest chances generally during the afternoon and evening hours (12PM-2AM). Guidance shows moderate instability/CAPE values, moderate to high bulk shear, plenty of moisture (PWAT values towards the maximum percentile), and relatively warm temperatures aloft coupled with 500mb PVA pivoting across east central Florida during the forecast period. The aforementioned weather parameters are supportive of isolated to scattered strong storms capable of frequent lightning, wind gusts up to 40-50mph, and heavy rainfall (up to 1-3"+ in 60 minutes). Thus, the WPC has outlooked east central Florida in a Marginal Risk (level 1 out of 5) for excessive rainfall both days with the potential for slow moving showers/storms rainfall to result in flooding of roadways, as well as low lying areas, especially in areas that observe repeated rounds. Additionally, north- northwest winds are forecast to increase on the backside of low pressure near the Volusia/Brevard county coasts by Wednesday afternoon at 15-20mph with gusts to 30-35mph over Volusia, northern Brevard, Seminole, and eastern Lake counties. Afternoon highs in the low to upper 80s with lows in the upper 60s to mid 70s are forecast.

Thursday-Sunday... Deterministic models and LREF-clusters continue to be in good agreement that the longwave trough over the Deep South will begin to fill on Thursday before the Atlantic ridge builds back over the state of Florida into Friday. The stationary boundary is forecast to meander over east central Florida and gradually lift north to northern Florida through the weekend. Therefore, rain chances remain above normal through the forecast period. Scattered to widespread showers (~50-90% chance) and lightning storms are forecast each day (slightly lower shower/storm chances on Sunday) with the greatest chances in the afternoon/evenings. Generally, seasonable to below normal high temperatures are forecast (warmest south of the front across southern east central Florida). Above normal low temperatures are forecast.

MARINE

Issued at 300 AM EDT Mon Oct 5 2026

Currently-Today... Favorable boating conditions outside of showers and lightning storms are expected. Isolated to widespread generally offshore moving showers and lightning storms are forecast with the highest chances in the afternoon/evening. The potential exists for isolated strong storms capable of winds to 34kts or greater. Light south-southwest winds are expected to turn onshore into the afternoon at 4-8kts. Seas to 2-3ft are expected.

Tuesday-Friday... Favorable boating conditions outside of showers and lightning storms are forecast through Tuesday afternoon before a stationary boundary meanders across the local Atlantic waters into midweek. Conditions are forecast to deteriorate and become hazardous Tuesday night over the local Atlantic waters as low pressure stalls near the east coast of Florida around the Volusia/Brevard county coasts. The potential exists for a couple to a few strong storms capable of wind gusts to 34kts or greater each day. Winds are forecast to gradually turn offshore into Wednesday at 10-15kts south of Cape Canaveral and 15-25kts north of Cape Canaveral before gradually weakening into Thursday. Seas are forecast to build to 2-4ft with up to 5-6ft over the Volusia, as well as the Brevard county offshore waters on Tuesday. Seas are forecast to build to 6-8ft over the Volusia county and Brevard county offshore waters on Wednesday with seas to 4-6ft elsewhere before reducing to 3-5ft on Friday.

AVIATION

(12Z TAFs) Issued at 652 AM EDT Mon Oct 5 2026

Light and variable winds this morning develop a light southerly component at most terminals early in the day. Winds later turn onshore at coastal terminals as the east coast sea breeze develops. Showers and a few storms may initiate along the sea breeze, particularly near the Treasure Coast TAF sites. Otherwise, higher coverage of showers and storms builds southward through the Greater Orlando terminals in the afternoon and evening. VIS/CIG reductions are forecast beneath storm cores. Continuing to monitor for lowering ceilings tonight, especially from TIX/ISM/MCO northward. Have started a slight mention of this by introducing scattered cloud bases around 2,000 ft overnight at northern TAF sites.

PRELIMINARY POINT TEMPS/POPS

DAB 87 73 82 72 / 80 70 90 70 MCO 90 74 86 73 / 70 60 90 60 MLB 89 75 87 72 / 40 60 80 70 VRB 89 74 88 71 / 30 50 80 60 LEE 88 73 82 71 / 70 70 90 60 SFB 89 74 84 73 / 80 70 90 70 ORL 89 75 84 74 / 70 60 90 60 FPR 89 73 88 72 / 30 40 70 60

MLB WATCHES/WARNINGS/ADVISORIES

FL...None. AM...Small Craft Advisory from 8 PM Tuesday to 11 AM EDT Thursday for AMZ550-570-572.