


Area Forecast Discussion
Issued by NWS Melbourne, FL
Issued by NWS Melbourne, FL
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950 FXUS62 KMLB 302356 AFDMLB Area Forecast Discussion National Weather Service Melbourne FL 756 PM EDT Mon Jun 30 2025 ...New AVIATION... .KEY MESSAGES... Issued at 236 PM EDT Mon Jun 30 2025 - High coverage of afternoon and evening showers and lightning storms each day, especially Wednesday onward. Slow-moving storms will be capable of wind gusts to around 50 mph, frequent lightning strikes, and locally heavy rainfall, leading to minor flooding. - Humid conditions will continue to lead to apparent temperatures in the upper 90s to lower 100s. - Moderate risk of rip currents continues at area beaches through at least mid week. && .PREVIOUS DISCUSSION... Issued at 236 PM EDT Mon Jun 30 2025 Current-Tonight...Warm and humid conditions again this afternoon with maxes topping out in the U80s to near 90F with peak heat indices in the M-U90s for most. Clouds and early convective initiation will keep numbers in check (lower than recent days). The Atlc surface ridge axis continues across the central FL peninsula, while aloft, general troughiness persists across the FL peninsula keeping conditions unsettled. PWATs range from 1.70-2.10 inches with 500 mb temps hovering around -8C. Expecting fairly high coverage (50-70pct) of convection, again, this afternoon/evening. The I-4 corridor and portions of north Brevard and Osceola counties have already observed early activity. Showers and storms will begin to focus further southward toward Lake Okeechobee and the Treasure Coast late today. Expect coverage and intensity to increase thru late afternoon and early evening. Storm steering flow remains light and generally toward the N/NE, but any stronger boundary collisions will allow cell movement to be erratic at times. A few strong storms will be possible with primary storm impacts of frequent cloud-to-ground lightning strikes, gusty winds locally to 50 mph, small hail, and torrential downpours leading to minor/nuisance flooding potential. Quick accumulations of 1-3 inches locally will be possible in a 60-90-minute period or from multiple rounds. This could exacerbate any ongoing minor flooding concerns and/or create new ones, as daily rainfall amounts add up. Activity will linger during the evening gradually dissipating late. Clouds thin overnight with mostly drier, but muggy conditions. Winds will become light SW/W (perhaps variable) later tonight with overnight mins generally L-M70s, perhaps M-U70s for barrier islands. Tue-Thu...Previous Modified...Weak mid-upper level troughing initially over the FL peninsula finally pushes east of the area as additional shortwave troughing slides southward into the Deep South to reinforce. This will act to weaken the surface ridge axis. Moisture surges further on Wed ahead of a weakening front dropping into the southeast U.S. and Gulf Coast states. Storm steering flow will veer more SWRLY and become stronger, resulting in the (W/E coast) sea breeze collision across the eastern half of the peninsula. Rain chances jump back to well above normal the later half of the week. While a few stronger storms will be possible, the primary concern will be increasingly daily rounds of heavy downpours. Seasonable high temperatures in the U80s to L90s are forecast to continue, with peak heat indices in the U90s to L100s, and Minor to Moderate HeatRisk impacts. Fri-Mon...Previous Modified...Unsettled conditions with high rain chances expected to continue as the nearly stalled front (to the north) accompanied by copious moisture sags into the southeast U.S. and towards Florida. While there is potential for a tropical or subtropical system to form along the frontal boundary by the weekend, which the National Hurricane Center is monitoring and currently has a low (20%) chance of development over the next 7 days; heavy rainfall will be the primary concern regardless of development. Multiple rounds of showers and storms will be possible each day, increasing/compounding concerns for flooding. On the plus side, high cloud coverage will result in near to slightly below normal temperatures, with afternoon highs in the U80s to around 90F, and peak heat indices in the M90s to around 100F. && .MARINE... Issued at 236 PM EDT Mon Jun 30 2025 High coverage of afternoon/evening showers and lightning storms will continue through the upcoming week. Some of this activity will be capable of moving across the intracoastal and near shore Atlc waters, particularly into the late afternoon and evening hours, while overnight activity will remain offshore. A few storms could be strong, capable of frequent lightning strikes, gusty winds, small hail, and heavy downpours. S/SW prevailing winds, remaining less than 15 kts. However, winds become SE along the coast each afternoon as the sea breeze develops and pushes slowly inland. Seas 1-3 ft, but locally higher invof storms. && .AVIATION... (00Z TAFs) Issued at 756 PM EDT Mon Jun 30 2025 After an earlier start to showers and isolated storms today and some cloudier conditions, convection was fairly isolated into the afternoon. However, higher coverage of showers and storms across south FL has produced an outflow boundary that is moving quickly northward across central FL this evening. This will be capable of producing additional scattered showers and storms through late evening, mainly inland, as it lifts toward the Orlando Metro area. Have VCTS included from 01/02Z-05Z for KISM/KMCO/KSFB/KTIX, and VCTS through 04Z at KMLB, with a Tempo group for 3SM TSRA for the next hour as storms are already developing near the terminal. Will continue to monitor trends and may have to include some additional Tempo groups for the Orlando metro area for SHRA/TSRA this evening. Into tomorrow, high coverage of showers and storms forecast, and again have VCTS at all terminals starting around 18-20Z. Tempo IFR/MVFR conditions will occur with any of this activity, but timing is still a little uncertain, so have kept them out of the TAFs for this package. && .PRELIMINARY POINT TEMPS/POPS... DAB 71 90 73 89 / 30 70 30 70 MCO 72 91 74 88 / 30 70 30 70 MLB 73 89 73 90 / 40 70 40 70 VRB 69 90 70 91 / 40 70 40 70 LEE 73 88 74 87 / 30 70 30 70 SFB 73 91 73 89 / 30 70 30 70 ORL 73 91 75 89 / 30 70 30 70 FPR 70 88 70 90 / 40 70 40 70 && .MLB WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. && $$ DISCUSSION...Sedlock AVIATION...Weitlich