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Middle Atlantic River Forecast Center

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Water Resources Outlook - Southern MARFC Area
Go to Northern MARFC Area Go to WRO Archive
Map of the Southern Water Resources Outlook Region

May 22, 2015 May rainfall has been mostly 1 1/2 to 2 1/2 inches so far with the least in western Virginia and the most around parts of the Chesapeake Bay. Temperatures continue to be quite warm running several degrees above normal. Over the past 90 days, precipitation has been near normal for many areas plus or minus and inch or two. West-central Virginia is 2 to 4 inches above. Parts of western Maryland have been 2 to 3 inches below normal.

Current (May 22) streamflow data from the U.S. Geological Survey shows that streamflows are near or below normal in Maryland, Delaware, Virginia, and the eastern panhandle of West Virginia. Groundwater levels are generally near normal.

The weather outlook into early June calls below normal rainfall for the first half of the outlook but then near or possibly above normal rainfall for the second half of the outlook. Temperatures are expected to be above or much above normal. The NWS Climate Prediction Center's 30 day outlook for June calls for near normal rainfall along with near or above average temperatures. The 90 day outlook for June through August calls for near average precipitation and near normal temperatures.

The outlook for water resources and water supplies is good for most of the southern portion of the MARFC service area. The outlook is good to fair for northern Maryland into Delaware. Recent rainfall over the past several weeks and rainfall expectations indicate that a dry spell has started. Though still short term, if this overall dryness continues, then longer term deficits will grow and effects will begin, such as low streamflows, low groundwater, and dry soils. Changes to the outlook for water resources and supplies could occur if the expectations for rainfall do not materialize.


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Page last modified: October 29, 2014 23:00
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