The National Weather Service in Baltimore MD/Washington DC forecasts a relatively calm weather pattern over Baltimore for the immediate future, with the synopsis mentioning that high pressure will shift offshore today, allowing for a slight rise in temperatures and the possibility of a few showers and thunderstorms towards the weekend.
Today's weather is slated for mostly clear skies and a shift towards warmer conditions as southerly winds bring in higher temperatures and dew points, leading to highs reaching into the mid 70s to lower 80s; residents in higher elevations may experience cooler weather, lingering in the 60s, while a cold front approaching on Saturday could bring showers and perhaps some thunderstorms, especially across the higher elevations like the Allegheny Highlands, however, with weak instability the chance for prolonged convection doesn't seem to hold a candle against recent dry conditions.
According to the National Weather Service Area Forecast Discussion, aviators can expect generally favorable conditions today with high pressure in play, though some patchy fog detected could cause brief periods of reduced visibility at CHO and MRB, as per the forecast discussion, VFR conditions should persist with light southerly winds continuing through tonight while a stronger cold front forecasted for the weekend can usher in potential showers and thunderstorms, possibly impacting flight schedules due to adverse weather phenomena.
Marine activities are anticipated to pick up, with winds bolstering in strength particularly along the Chesapeake Bay where a Small Craft Advisory is in effect from midnight tonight to 8 AM EDT Thursday; looking forward, with winds expected to surge post-sunrise Thursday, mariners should brace for advisories likely being needed and thunderstorms late Thursday afternoon that could further disrupt tranquility with gusty squalls, while water levels on the rise may prompt minor coastal flooding at Annapolis this weekend as the winds shift and sweep across the area.
Looking ahead, the long-term forecast indicates a sharp drop in temperatures following the weekend's cold front movement, as Canadian high pressure builds and introduces cool and dry conditions, resetting the climate closer to late September feels than those typical of early September's warmth, leading into a fair and cool outlook as a surface wedge pattern develops, keeping the area temperate and dry.
