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March 15, 2018 March precipitation has been quite light with most areas running 1/2 to 1 1/2 inches below average. The most has been in the Delmarva Peninsula and southeast Virginia where amounts have ranged from about normal to an inch or so above. March temperatures have been 1 to over 4 degrees below normal. Over the past 90 days, precipitation has been about normal or as much as 2 or 3 inches below, though the northern Delmarva Peninsula is running 2 to 4 inches above.

Snow is confined to the highest elevations of far western Maryland, parts of the eastern panhandle of West Virginia, and far western Virginia where 5 to 10 inches are on the ground. This snow is not hydrologically significant.

Current (March 15) streamflow data from the U.S. Geological Survey shows that streamflows are much below normal except the Delmarva Peninsula where flows are normal. Groundwater levels are mostly near or below normal.

The US Drought Monitor for March 15 shows that an area of northern Virginia and southern Maryland in the vicinity of the District of Columbia as well as parts of southern Virginia are in Moderate Drought. “Moderate Drought” means that some damage to crops and pastures can be expected; streams, reservoirs, or wells will be running low; some water shortages are developing or are imminent; and voluntary water-use restrictions are requested.

The state of Maryland has a “Drought Watch” in effect for northern and central parts of the state excluding the Baltimore/Washington Region. . The state of Virginia has a “Drought Watch” in effect for northern, central, and southern parts of the state.

The weather outlook into late March calls for near or above average precipitation. Temperatures are expected to be below average. The NWS Climate Prediction Center's 30 day outlook for April calls near average precipitation along with above average temperatures. The 90 day outlook for April through June calls for near or above average precipitation and above average temperatures.

The outlook for water resources and water supplies is fair for Delaware, Maryland, the eastern panhandle of West Virginia, and Virginia. After some improvement in February, conditions have become dry for most areas. With the onset of spring, average or above average precipitation is needed or deteriorating conditions are possible.


Snow Pack Information

Precipitation Information

Extended Outlooks

Winter/Spring Flood Outlook


The first outlook is scheduled to be released on January 4, 2018.

Current Hydrologic Conditions

U.S. Geological Survey Real Time Data

Advanced Hydrologic Prediction Service (AHPS)

Cooperating Agencies


Drought Information