Baltimore residents can look forward to a steady spell of high pressure and gradually warmer temperatures through Tuesday, according to the National Weather Service Baltimore MD/Washington DC. The same source outlines that while today will see slight warmth compared to Saturday, a moderate increase in humidity is also on the cards. With an easterly wind drift, overnight temperatures are expected to be noticeably warmer than previous nights, coupled with a possibility of more widespread patchy fog due to the uptick in low-level moisture.
In terms of the upcoming week, by Monday, the high pressure zone is predicted to shift offshore, elevating temperatures near the 90-degree mark in the afternoon. "A couple of showers could try to pop up Monday afternoon near the central Shenandoah Valley vicinity, but coverage should be low given lingering ridging overhead," the forecast details. While Tuesday shares a similar outlook, with temperatures again climbing into the 90s, there's a greater chance of showers and thunderstorms west of the Blue Ridge during the afternoon as the ridge begins to dissipate and humidity rises.
As we reach the midweek point, a standard hot and humid summer pattern is set to return, featuring high temperatures in the upper 80s and lower 90s. Dewpoints are expected to hover in the lower 70s, creating the perfect storm for daily chances of afternoon showers and thunderstorms. "The highest coverage of storms will likely be on Wednesday," according to sources, as the forecast indicates an upper trough passing through the Great Lakes, which may provide a slight uptick in storm activity.
The aviation sector should anticipate VFR conditions through Tuesday night, with patchy fog or low clouds mainly during the late overnight to morning hours. A brief window for sub-VFR conditions may arise in potential afternoon thunderstorms on both Wednesday and Thursday, when winds will change from southwest to northwest direction. Light southeast winds will govern the scene through Tuesday on the watery front, with an outlook for sub-SCA level winds midweek. As stated in official weather discussions, special Marine Warnings could appear with the anticipated thunderstorms.
Finally, the coastal areas are expected to experience some minor flooding challenges. Elevated tidal anomalies driven by the previous full moon and light onshore flow might lead to minor coastal flooding at high tides, particularly in Annapolis, Dahlgren, and Alexandria. Residents in those areas should stay alert and be prepared for these high tide events as the week begins.
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