


Area Forecast Discussion
Issued by NWS Melbourne, FL
Issued by NWS Melbourne, FL
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294 FXUS62 KMLB 031937 AFDMLB Area Forecast Discussion National Weather Service Melbourne FL 337 PM EDT Sun Aug 3 2025 ...New KEY MESSAGES, DISCUSSION, MARINE... .KEY MESSAGES... Issued at 332 PM EDT Sun Aug 3 2025 - Hot and humid conditions with peak afternoon heat indices up to 107 and Moderate to Major HeatRisk impacts will continue through the first half of the week. - Near to above normal rain chances will offer some respite from the heat, but also bring risk of strong storms capable of gusty winds, deadly lightning, and very heavy rain. - Incoming NE swell will increase the risk of rip currents in the surf zone starting Monday. && .DISCUSSION... Issued at 332 PM EDT Sun Aug 3 2025 Thru Tonight...Late morning Cape sounding continues to show a moist column with PWATs just over 2 inches but there are a couple of narrow dry slots at 875mb and a more significant one at 700mb. As a result, the sea breeze is less convectively active than previous days and slower to push inland. The west coast sea breeze is pushing steadily across the peninsula and a collision will occur over our FA so expect some increase in storm coverage into early evening. Slow moving storms will produce a heavy rain threat and WPC has expanded the MRGL excessive rainfall potential to include all of Volusia county. Gusty winds and frequent lightning will accompany the stronger storms. Coverage looks to be 30-40%, ending by midnight. Mon-Tue...A weak upper-level blocking pattern develops and drifts very slowly eastward over the eastern US, with troughing on the southern side of this feature digging down to the North Gulf Coast as shortwaves move through the pattern. In the low levels, a weak frontal boundary oscillates a bit over north Florida. NHC has increased probabilities on AL95 to develop into a Tropical Storm soon as it moves NE into the open Atlc. Meanwhile, a weak Atlc ridge axis will lift north across central Florida and produce a more southerly low level wind flow (as opposed to SW). This will allow the sea breeze to develop a little earlier and push inland farther. This will result in the sea breeze collision occurring farther inland near Orlando metro late in the day. PWATs remain high (2.0"+) so rain chances are 60-70% over the interior/Volusia while remaining lower (30-50%) along the coast south of the Cape. The stronger storms will be capable of gusty winds, frequent lightning, and heavy rainfall. Max temps remain in the low to mid 90s and combined with a slight increase in dewpoints/humidity, peak heat indices will inch upward to 103-107, flirting with Heat Advisory criteria (again) esp Tue. Moderate to Major HeatRisk impacts are forecast. After several days of low rip current risk, incoming NE swell from AL95 is forecast to reach central FL Atlantic beaches Monday morning and increase the risk of dangerous rip currents. Wed-Sat (modified)...Upper-level blocking gradually loosens up through late week, but persistent troughing over the Southeast continues until Saturday or so, giving way to broad mid-level ridging across the Subtropical Atlantic and Gulf. With little large scale forcing, the stationary front continues its residency across north FL through late week, with some signs from guidance it`ll eventually get ushered off by early next week. In the meantime, ensemble means place a very weak Bermuda High ridge axis near to north of Central Florida, bringing us generally onshore/easterly flow through the period. There is a modest amount of uncertainty in the extended range forecast due to weak forcing, weak pressure gradient, and the continued potential for another disturbance to develop along the stationary front offshore the Carolina coast. The primary risk for EC FL will continue to be incoming swell maintaining at least a moderate rip current risk at the beaches. With near to slightly above normal moisture and the presence of the front, the forecast continues to call for rain chances slightly above normal, higher inland and lower along the coast. && .MARINE... Issued at 332 PM EDT Sun Aug 3 2025 The Atlantic high pressure ridge axis which has been located just south of the local waters will lift north across the area early this week while a weak frontal boundary remains nearly stationary across north FL. Wind flow will become more southerly, turning E/SE each afternoon behind the sea breeze. Wind speeds will be 10 knots or less. A light NE flow is forecast to develop Thu around a weak low that develops along the stalled front offshore the Carolinas. Incoming NE swell will build seas 3 ft nearshore and 4-5 feet offshore tonight and Mon, subsiding 2-4 ft by Wed. Offshore moving storms are possible this evening and again late Mon and Tue. Some storms could become strong and produce locally high winds over 34 kts and frequent cloud to water lightning. && .AVIATION... (18Z TAFs) Issued at 159 PM EDT Sun Aug 3 2025 VFR outside of convection. Lower coverage of showers and storms is forecast across the north interior today, and have kept mention of PROB30 for the greater Orlando terminals, including MCO, SFB, and ISM. VCTS along the coast as the sea breeze develops and moves inland. Have kept a TEMPO at TIX (22/01Z) where models suggest reasonable confidence for TSRA impacts. Southwest winds back south to southeast as the east coast sea breeze passes. Ongoing convection at sunset could linger a few hours into the evening. Dry conditions forecast overnight. && .PRELIMINARY POINT TEMPS/POPS... DAB 77 92 77 92 / 40 60 30 60 MCO 77 95 77 94 / 20 70 30 60 MLB 77 92 78 92 / 30 40 20 50 VRB 74 93 75 92 / 20 40 20 40 LEE 77 94 77 93 / 20 70 30 60 SFB 78 94 77 94 / 30 70 30 60 ORL 78 95 78 94 / 30 70 30 60 FPR 74 93 74 92 / 20 40 20 40 && .MLB WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. && $$ DISCUSSION...Kelly AVIATION...Law