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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

August 26, 2014 - Rainfall in August continues to be very heavy for some, but very little for others. Much of central and south-central Pennsylvania and the southern half of New Jersey are running 2 to 4 1/2 inches above normal for rainfall. On the dry side, the northern half of New Jersey, extreme eastern Pennsylvania, and the Catskill Region of New York have only had 1 1/2 to 2 1/2 inches of rain. Temperatures have been quite cool running 1 to 4 degrees below normal so far in August. Over the past 90 days, rainfall for much of the northern portion of the MARFC service area has been running about average plus or minus an inch or two. There has been a small dry area in parts of northeast Pennsylvania where rainfall has been 2 to 4 inches below average. A wet area has been in central and south-central Pennsylvania along with southern New Jersey where rain has been 2 to over 4 1/2 inches above average.

Current (August 26) streamflow data from the U.S. Geological Survey shows that streamflows are running above or much above normal for most of central Pennsylvania and south-central New York. Flows are near normal elsewhere. Groundwater levels are near normal in New Jersey but are above or much above normal elsewhere.

The weather outlook through the first week or so of September calls for near normal rainfall for the next week or so but then above normal rainfall. Temperatures are expected to be near or above normal. The NWS Climate Prediction Center's 30-day outlook for September calls for near average rainfall and temperatures. The 90 day outlook for September through November calls for near average precipitation and above average temperatures.

Hurricane season is underway and tropical weather systems can bring flooding rains to the Mid-Atlantic Region. For now, no tropical system is threatening the Mid-Atlantic Region.

The outlook for water resources and water supplies is good or very good across southern New York, Pennsylvania, and New Jersey. Though rainfall has been hit or miss at times for short periods, the longer term of weeks and months has brought sufficient rain to just about all areas to maintain good or very good water resources and supplies. The rainfall expectations for the coming weeks suggest that good or very good conditions will continue for the next several weeks.


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U.S. Geological Survey Real Time Data

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