Baltimore and its surrounding regions are bracing for varied weather conditions. The forecasts include a mix of showers and thunderstorms and a gradual shift towards cooler temperatures. According to the National Weather Service Baltimore MD/Washington DC weather update, a low-pressure system over the southern Appalachians is set to weaken today while another develops off the coast. This new system is expected to linger into the weekend.
In the more immediate term, residents should prepare for scattered showers and the occasional thunderstorm, most prevalent through midday. Thereafter, the area should experience somewhat drier conditions as the offshore low starts to influence it. As reported by the NWS, "efficient rain rates will have to be monitored," with some localized heavy rainfall totals possible. Temperatures will be relatively subdued, likely not rising much beyond the lower to mid-70s.
Tonight promises a decrease in rain chances, although isolated showers remain possible. Fog development is also possible, especially if cloud breaks manifest in western parts of the area. Lows tonight are projected to span from the mid-50s to mid-60s.
Looking ahead to Thursday and Friday, it seems the upper and surface lows will gradually begin drifting east or northeast. This movement could allow a few showers or even a thunderstorm to pop up, with clearer skies potentially elevating temperatures into the mid-70s to near 80 degrees.
Aviation interests will face IFR and MVFR conditions throughout this weather, with northeasterly winds and gusts up to 20 knots today. Pilots should anticipate potential visibility issues due to rainfall and fog. The NWS has also noted the possibility of renewed small craft advisories over the weekend, cautioning mariners of progressively choppier conditions.
Anomalies in water levels, particularly along the Potomac River, have prompted a series of Coastal Flood Advisories, already in effect for regions including DC and parts of Maryland and Virginia. As the new low-pressure system strengthens off the coast, the NWS warns of a potential uptick in water levels, raising concerns for more extensive coastal flooding as the week progresses.
