Snow is forecast to arrive in the region Saturday afternoon, and meteorologists have revised their predictions upward and now expect 4 to 8 inches in central Maryland.
Saturday morning, some weather forecasting models were suggesting a chance for perhaps a foot or more of snowfall, though it was unclear how reliable those last-minute predictions could be.
“If they trend higher, we might have to up our amounts,” said Jeremy Geiger, a meteorologist with the National Weather Service’s Baltimore/Washington forecast office.
By mid-morning, the weather service had not changed its high-confidence predictions for snowfall across the region.
But it acknowledged that the storm’s potential was increasing, suggesting a 10 percent chance of as much as 10 inches of snow for the Baltimore region. That is twice as much as meteorologists had predicted for the worst-case scenario a day earlier.
The area is under a winter storm warning starting at 7 p.m., lasting through 6 p.m. Sunday. Temperatures are forecast to peak in the lower 30s during the day both Saturday and Sunday, dropping to the upper 20s early Sunday morning.
The heaviest snowfall, likely at least 6 to 8 inches, is forecast to fall south and west of Baltimore.
Southern Maryland, the Washington region including Prince George’s and Montgomery counties, and much of Virginia and West Virginia are under winter storm warnings.
The storm was moving through the Plains and Midwest states Friday and Saturday, bringing snow from Kansas to Ohio. It was forecast to move into the Southeast and transfer its energy to a low-pressure system along the southern Atlantic coast Sunday.
There has been 1.4 inches of snow this season at Baltimore-Washington International Thurgood Marshall Airport, the Baltimore region’s point of record. All of that came in November. There was not even a trace of December snow here for the first time since 2001, according to weather service statistics.
The weather service meteorologists tracking the storms across the country are working without pay during the government shutdown, but expect to be paid retroactively once the budget impasse is resolved.
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