The moon is expected to be full tomorrow (Jan. 23) at 8:46 p.m. ET, according to NASA, resulting in higher-than-normal coastal tides. These conditions, combined with winds gusting at 40 to 50 miles per hour (64 to 80 km/h) from this weekend's winter storm (dubbed Jonas), could cause some coastal flooding.
A full moon occurs when the Earth, sun and moon form one straight line, with the