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Middle Atlantic River Forecast Center

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Water Resources Outlook - Northern MARFC Area
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Map of the Northern Water Resources Outlook Region

April 17, 2015 April precipitation has been quite heavy so far in southern New York and the northern half of Pennsylvania where 1 1/2 to 3 inches has already fallen. For the southern half of Pennsylvania and New Jersey, much less has fallen and has ranged from 1/2 to about 1 inch (though up to 2 inches has fallen in southern-most New Jersey). Temperatures so far in April have been 1 to 3 degrees above normal in southern New York, the eastern half of Pennsylvania, and in New Jersey. But the western half of Pennsylvania has been much warmer averaging 4 to 6 degrees above. Over the past 90 days, precipitation for southern New York, most of Pennsylvania, and northern New Jersey has been 1 1/2 to 4 inches below average. Southeastern-most Pennsylvania and the rest of New Jersey have been 1 to 2 inches above average precipitation.

The 2014-2015 snow season has ended.

Current (April 17) streamflow data from the U.S. Geological Survey shows that streamflows are near normal in southern New York, the northern two thirds of Pennsylvania, and the southern half of New Jersey. Flows are below normal for the southern third of Pennsylvania and the southern half of New Jersey. Groundwater levels are near or above normal.

The weather outlook for the rest of April calls for near or above average rainfall. Temperatures are expected to be above average through the beginning few days of the period but then trend to below average after that. The NWS Climate Prediction Center's 30 day outlook for May calls for near average rainfall and near or below normal temperatures. The 90 day outlook for May through July calls for near average precipitation and temperatures.

The outlook for water resources and water supplies is good across southern New York, Pennsylvania, and New Jersey. Though longer term precipitation deficits persist in many areas, recent rainfall and melting snow has offset these deficits. These deficits are beginning to slowly decrease especially with above average precipitation expected to continue for the next couple of weeks.


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Page last modified: October 29, 2014 10:58 PM
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