August 26, 2014 - Rainfall in August has been just about average,
plus or minus an inch or so, for most of the southern portion of the
MARFC service area. Much of central Maryland, northern Virginia, and
even the central Delmarva Peninsula are running 1 1/2 to 3 1/2 inches
above normal rainfall. Temperatures have been quite cool running 1 to
4 degrees below normal so far. Over the past 90 days, most areas have
had near average rainfall plus or minus 1 to 2 inches. Parts of
central and western Virginia are 3 to over 4 1/2 inches below normal.
On the wetter side of things, parts of central Maryland and northern
Virginia are 3 to over 6 inches above normal.
Current (August 26) streamflow data from the U.S. Geological Survey
shows that streamflows are normal to above normal. Groundwater levels
are near or above normal.
The weather outlook through the first week or so of September calls
for below 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 normal 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 supplies is good for Maryland,
the eastern panhandle of West Virginia, Delaware, and much of
Virginia. The outlook is fair for central and western Virginia due to
an extended period of dryness. However, recent rain has eased this
dryness a bit. It is common in the summer for some areas to get quite
a bit of rain while nearby areas get very little. But over the longer
term of weeks and months, most areas have been receiving sufficient
rain to maintain good water resources and supplies. The exception, as
mentioned above, is in central and western Virginia. Region-wide, the
expectation of near or above average rainfall should maintain or
improve water resources and supplies over the next couple of weeks.