ANZ500-212000-
226 AM EDT Fri Aug 21 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A cold front will slowly approach from Pennsylvania today as a warm
front approaches from the Virginia Tidewater and Delmarva Peninsula.
Multiple weak waves of low pressure along these boundaries will
ignite scattered to numerous showers and thunderstorms. Some storms
may be severe particularly east of the Blue Ridge and Catoctin
Mountains, and especially across the Interstate 95 corridor toward
the Chesapeake Bay. This frontal system is expected to stall near or
just southeast of the Mid-Atlantic, and additional ripples of low
pressure riding along it may result in periodic showers and a few
thunderstorms at times through the upcoming weekend.
$$
ANZ539-212000- Chester River to Queenstown MD- 226 AM EDT Fri Aug 21 2026 OVERNIGHT N winds 10 kt. Waves 1 to 2 ft. FRI N winds 5 to 10 kt. Waves 1 ft. FRI NIGHT E winds around 5 kt. Waves 1 ft. A chance of showers. SAT E winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. SAT NIGHT E winds 5 kt. Waves flat. A chance of showers and tstms. SUN W winds 5 kt. Waves less than 1 ft. A chance of showers. SUN NIGHT NW winds 5 to 10 kt. Waves 1 ft. MON NW winds 5 to 10 kt. Waves 1 ft. TUE SW winds around 5 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$
ANZ539-212000- Chester River to Queenstown MD- 226 AM EDT Fri Aug 21 2026 OVERNIGHT N winds 10 kt. Waves 1 to 2 ft. FRI N winds 5 to 10 kt. Waves 1 ft. FRI NIGHT E winds around 5 kt. Waves 1 ft. A chance of showers. SAT E winds 5 kt. Waves less than 1 ft. Showers likely with a chance of tstms. SAT NIGHT E winds 5 kt. Waves flat. A chance of showers and tstms. SUN W winds 5 kt. Waves less than 1 ft. A chance of showers. SUN NIGHT NW winds 5 to 10 kt. Waves 1 ft. MON NW winds 5 to 10 kt. Waves 1 ft. TUE SW winds around 5 kt. Waves 1 ft or less. Winds and waves higher and visibilities lower in and near tstms. $$