Orlando residents can expect increased rain chances, focused south of the city, today, with unsettled weather conditions and temperatures slightly warming up over the weekend, according to the National Weather Service in Melbourne, FL. The weather service's area forecast discussion indicates a moderate risk of rip currents along the beaches, advising swimmers to stay near a lifeguard and avoid swimming alone.
As the day progresses, moderate onshore flow will bring a diffuse east coast sea breeze inland with a possibility of showers and a few storms, particularly across the southern counties closer to a resident stationary front, while northern areas will see fewer showers with diminishing rain chances as moisture decreases; during this, temperatures will hover in the upper 80s along the coast and dip into the low 90s inland, contributing to peak afternoon heat indices between the upper 90s and lower 100s, approaching 100 to 105 degrees this weekend, the weather service highlighted. Windy conditions are expected in the northern half of the area, especially in the afternoon, which may trigger some gusty conditions after the sea breeze boundary passes.
Looking ahead to the weekend, a series of mid-level shortwaves moving through the troughing pattern over the eastern US will lead to a lift in the frontal boundary and associated higher moisture into Central Florida, with rain chances increasing above normal across the region and temperatures inching up a degree but remaining around normal with highs along the coast in the upper 80s and low to mid-90s inland, leading to peak heat indices nearing the mid-100s in some spots on Saturday, per weather service reports.
For the boating community, generally favorable winds and seas are expected, but with high chances of rain and storms forecasted through the weekend and into early next week, mariners should stay alert to updates, "A slight tightening of the pressure gradient today increase ENE winds to 10-15 kts in the afternoon and evening after the sea breeze develops, then ease overnight," the National Weather Service forecast discussion stated, moreover the weak frontal boundaries could complicate the wind field, adding a layer of unpredictability to the early week's marine conditions, and seas could rise to 4-5 ft offshore if disturbances develop along the boundary.
In terms of aviation, the stalled boundary across the southern area will result in the highest coverage of showers being forecasted along and inland from the Treasure Coast, with varying chances for showers and storms elsewhere, the chances for TS today appear to be below normal, with only modest CAPE for early September, the Aviation section of the National Weather Service report indicated; this is coupled with NE/ENE flow increasing from the Melbourne area northward behind the sea breeze in the afternoon, with wind gusts forecasted to be around 20 knots.
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