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Another burst of snow could sweep through the region Sunday, a chance at ending the longest wait for measurable snow since 2006-2007. But the probability of a significant snowfall has declined.

Another burst of snow could sweep through the region Sunday, a chance at ending the longest wait for measurable snow since 2006-2007. But the probability of a significant snowfall has declined.

National Weather Service forecasters predict that a cold front bringing Arctic air into the region could carry with it some flurries or light snow showers, much like the system that passed through Tuesday night.

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They had considered the possibility that a system could move up the East Coast and bring "a significant winter storm." But more recent forecasting model runs suggest that low-pressure system will instead track across Florida instead.

Under that forecast, a low pressure system looked to form and track up the coast with "ample cold air" feeding into it from the north. With El Nino moisture streaming eastward from the Pacific, that is the recipe for many of this region's significant snowstorms.

Instead, forecasters expect a so-called "clipper" storm like the one that passed through Tuesday. Clippers typically bring quick bursts of relatively light snow.

Only a trace of snow fell Tuesday night at Baltimore/Washington International Thurgood Marshall Airport, extending a streak without measurable snow there since last winter.

It is the latest BWI has gone without more than a trace of snow in a winter since January 2007, when no measurable snow fell until 0.9 inches Jan. 21.

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