textproduct: Melbourne

KEY MESSAGES

Issued at 300 PM EDT Tue Oct 6 2026

- High coverage of showers and occasional lightning storms this week with a Marginal Risk for Excessive Rainfall across east central Florida through Thursday. Minor flooding is possible in areas that see multiple rounds of heavy rainfall.

- Poor to hazardous boating conditions begin this evening near and north of Cape Canaveral as low pressure strengthens offshore; a Small Craft Advisory for portions of the local Atlantic begins tonight.

- Beach conditions are forecast to deteriorate tomorrow along the Volusia and Space Coasts due to the low pressure.

DISCUSSION

Issued at 300 PM EDT Tue Oct 6 2026

Through Tonight...Truly a tale of two different weather patterns across east central Florida this afternoon. Light showers overspread northern portions of the area along with high cloud coverage that has prevailed through this morning and into the afternoon hours, resulting in limited convective development. What deeper convection has managed to develop has generally struggled across these northern portions, and a continued spreading of light showers is likely through the remainder of today. To the south, less cloud coverage has allowed for daytime heating and the development of the sea breeze, which has pushed inland slightly. Convective development has been ongoing as a result, with scattered showers and storms across the Treasure Coast and portions of southern Brevard. The scattered, deeper convection will continue through this afternoon across the southern half of the forecast area, spreading inland as outflow from convection pushes westward. This activity will continue to be capable of producing lightning strikes and gusty winds up to 45 mph cannot be ruled out with the strongest storms. Activity across the south is anticipated to gradually wane into the late evening hours, with the lighter showers likely overspreading the remainder of east central Florida as the stationary boundary remains draped across the peninsula. Some drier periods overnight cannot be ruled out.

An area of low pressure is forecast to begin developing along the boundary off the east coast of Florida tonight. There remains a good deal of uncertainty between models and even individual model runs on where the low will develop and just how strong it will be. A slight increase in northerly winds along the Volusia and northern Brevard coasts will be possible tonight, though the greatest winds are anticipated on Wednesday. Muggy conditions persist due to the deep moisture across the state, with lows in the low 70s.

Wednesday-Thursday...The stalled boundary draped across the Florida peninsula will remain in place through the middle of this week, maintaining a deep plume of moisture across east central Florida. PWATs are forecast to remain between 2-2.5" areawide, supporting numerous to widespread showers locally each day with PoPs generally ranging between 70-85%. Multiple rounds of showers are anticipated, increasing the potential for flooding when combined with the already saturated soils from prior rainfall. Broad rainfall accumulations up to 4" will be possible through mid-week, though any deeper convection could prompt higher totals in localized areas. A Marginal Risk (1 out of 4) of excessive rainfall encompasses all of east central Florida both Wednesday and Thursday. Storm development cannot be ruled out with activity, but confidence in coverage remains low. The deep moisture and higher cloud coverage will limit instability across the area, with warmer temperatures aloft also inhibiting deep convective development. Occasional lightning strikes will be possible at times and isolated gusts up to 45 mph cannot be ruled out within the strongest storms. Showers are forecast to linger through the overnight hours each day, though coverage may wane slightly overnight.

Along the stalled boundary, the low pressure forming off the eastern coast of Florida is anticipated to bring some increasing northerly winds and higher seas into Wednesday, primarily along the Volusia and northern Brevard coasts. Wind speeds of 15 to 20 mph will be possible at times, with gusts up to 30 mph possible. The increasing winds and seas will also bring deteriorating beach conditions to the Volusia and northern Brevard coastlines, and a high risk of rip currents will be possible. Elsewhere, wind speeds are forecast to remain generally below 15 mph. Temperatures will remain generally in the 80s through Thursday, with high moisture keeping conditions muggy. Overnight lows generally in the low 70s.

Friday-Tuesday (previous)...All eyes late week and into this weekend turn to the Gulf, where an area of low pressure is being monitored for tropical development. While the forecast remains uncertain, ridging over the central US looks to shift eastward Friday into Saturday, allowing the low to move ashore somewhere along the northern Gulf coast. Locally, this could mean little for the overall pattern. While this system may be able to drag the stationary front northward, southerly flow over the Florida peninsula would maintain deep moisture over the area. Currently, rain chances remain above normal (60-80%) Friday and this weekend, before slightly drier air lowers rain chances somewhat into early next week. Breezy onshore winds return Friday and Saturday, as the pressure gradient tightens between the low and ridging to the north. Temperatures creep up a few degrees each day, especially as cloud cover diminishes. Highs return to the upper 80s, with muggy conditions leading to heat indices in the 90s to lower 100s.

MARINE

Issued at 300 PM EDT Tue Oct 6 2026

Boating conditions begin deteriorating tonight as an area of low pressure develops off the east coast of Florida along a stalled frontal boundary. The low is anticipated to strengthen tonight into Wednesday, producing increasing north to northeast winds. Current guidance suggests wind speeds increasing to 15 to 25 knots across the Volusia waters late tonight into Wednesday, with seas responding by building to 4 to 7 feet areawide. Small Craft Advisories will go into effect tonight across the Volusia and offshore Brevard waters, where the highest seas will be focused. Periods of poor to hazardous boating conditions are anticipated to continue through this week and into this weekend.

The stalled boundary draped across the local Atlantic waters will also support shower and storm development through the remainder of this week. Heavy downpours will remain the primary concern, though lightning strikes, gusty winds in excess of 30 knots, and locally higher seas cannot be ruled out near the strongest storms.

AVIATION

(18Z TAFs) Issued at 137 PM EDT Tue Oct 6 2026

Light to moderate rain is moving in from the west, with additional showers and lightning storms forming along the east coast sea breeze this afternoon. Coverage and intensity of showers and embedded lightning storms will increase this afternoon and evening. Have maintained prevailing -SHRA with mention of VCTS from TIX/MCO/ISM northward starting at 18Z with TEMPOs for VIS/CIG reductions in heavier downpours. From MLB southward, confidence in lightning storms increases, so have maintained TSRA in tempos for later this afternoon. VCSH with some potential for lowering ceilings to linger through much of tonight across all terminals. Although breaks in showers are expected. Northeast winds 5-10 KT this afternoon will become light, variable at times, tonight. Winds then become northeast to east once again Wednesday mid morning from MLB to ISM northward, and by early afternoon from VRB southward. VCSH will linger through the morning hours.

PRELIMINARY POINT TEMPS/POPS

DAB 71 80 73 81 / 80 80 70 80 MCO 73 82 73 82 / 70 80 50 80 MLB 72 84 72 83 / 70 80 70 80 VRB 71 87 70 86 / 60 80 60 80 LEE 71 80 71 80 / 70 80 50 80 SFB 72 80 73 81 / 70 80 60 80 ORL 74 81 74 81 / 70 80 60 80 FPR 71 86 71 86 / 60 80 60 80

MLB WATCHES/WARNINGS/ADVISORIES

FL...None. AM...Small Craft Advisory from 8 AM Wednesday to 2 AM EDT Thursday for AMZ550.

Small Craft Advisory from 8 PM this evening to 5 AM EDT Thursday for AMZ570-572.