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.