Baltimore and the surrounding Mid-Atlantic region are bracing for a spate of unsettled weather, as the National Weather Service Baltimore MD/Washington DC forecasts. According to the Area Forecast Discussion, a front meandering across the area will eventually become a cold front by late Sunday, promising a week of temperature swings and mixed precipitation.
Early this morning, the National Weather Service indicated that a warm front will nudge northward across southern Virginia. At the same time, its progress may be slow due to initially weak low-level wind fields. With moisture increasing, residents can expect to see more clouds, potentially increasing the risk of isolated showers and thunderstorms. "The increase in moisture will also result in low clouds overspreading much of the area within a few hours of sunrise," the NWS report explains, adding that these conditions are likely to persist for the day ahead, especially with the front's progress stalling near the Potomac River.
Northern parts of the area will see temperatures in the low to mid-60s, while warmer in the south, with the upper 70s to lower 80s expected. Later into Saturday, the National Weather Service anticipates the chance of showers and thunderstorms to increase, particularly in the northwest corner of the forecast region. "Instability is forecast to be on the lower side...however, there is enough shear for any stronger updrafts to organize and become capable of producing severe weather," the analysis from the NWS outlines. This means a marginal and isolated severe weather threat with low tornadic potential for locals.
Moving into next week, a secondary cold front is expected to pass through Monday evening, potentially leading to a brief round of upslope snow showers in the Alleghenies. The eastern part of the mountains will likely experience gusty conditions without snow. Tuesday into Friday, a significant weather pattern might bring possible rain showers and more seasonal temperatures by the end of the week.
Aviation and marine operations should also anticipate impacts due to the sporadic weather conditions brewing. The National Weather Service advises that MVFR ceilings will spread, and IFR conditions are most likely Sunday night into Monday morning, likely affecting flights. For mariners, a Small Craft Advisory will be in place for certain zones due to south winds increasing through the evening. Although the worst of this weather seems short-lived, it remains a stark reminder of nature's unpredictability in the transitional seasons.
