The second of 2025's three supermoons will be on display Wednesday night, and this one will appear as the biggest and brightest of the year. While the celestial event can cause tidal changes, a local meteorologist said there's a low risk for flooding — unlike last year.

Since the moon doesn't move in a perfect circle, it's sometimes closer to the Earth during its 27-day orbit. A supermoon occurs when it hits that point of closeness, called a perigee, during a full moon. The moon will be about 226,000 miles from Earth during a supermoon compared with 251,000 miles at its farthest point. MORE: Red, bus-only lanes to be added to 3 streets in Center City, South Philly

Supermoons can appear up to 14% larger and 30% more luminous than the dimmest moon of the year, according to

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