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December 7, 2018 December precipitation has been light so far with amounts of one half inch or less. Temperatures have been about normal plus or minus a degree or two. Over the past 90 days, precipitation has been 4 to 11 inches above average.

Snow depths range from 1 to 2 inches in the mountains of far western Maryland and the eastern panhandle of West Virginia. Elsewhere, little or none is on the ground. The water equivalent of this snow (or the water in the snowpack that will be released when the snow melts) is under 1/4 inch.

Current (December 7) streamflow data from the U.S. Geological Survey shows that streamflows are near or above normal while groundwater levels are much above normal.

The weather outlook over the next couple of weeks calls for near or below average precipitation along with below average temperatures for the first week or so but then above average precipitation and above average temperatures for the second week. The NWS Climate Prediction Center's 30 day outlook for December calls for near or above average precipitation and above normal temperatures. The 90 day outlook for December 2018 through February 2019 calls for near or above average precipitation and near average temperatures.

The outlook for water resources and water supplies remains very good or excessive with little change expected in the next week or two.


Snow Pack Information

Precipitation Information

Extended Outlooks

Winter/Spring Flood Outlook


The first outlook is scheduled to be released on January 3, 2019.

Current Hydrologic Conditions

U.S. Geological Survey Real Time Data

Advanced Hydrologic Prediction Service (AHPS)

Cooperating Agencies


Drought Information