December 12, 2013 - December has been quite wet or white to date
with 2 to 3 1/2 inches of precipitation so far. This is much above
normal. Much of this has been snow and/or ice, so these amounts
represent the rain and water equivalent of the snow and ice that has
fallen. Overall, long term dry conditions are dwindling. For the
past 90 days, Delaware, much of Maryland, far eastern portions of the
West Virginia panhandle, as well as northern and eastern Virginia are
running near to 3 inches above average. Elsewhere, precipitation has
been 1 to 2 1/2 inches below average. Calendar year 2013 is winding
down. To date, Delaware, most of Maryland east of the Chesapeake Bay,
and much of central and southern Virginia is 5 to more than 10 inches
above normal. A small dry area is Allegany County, MD and Mineral
County, WV where amounts have been 5 to 7 inches below normal.
The snow season has begun. 2 to 7 inches of snow covers the ground
in much of Maryland west of the Chesapeake Bay, the eastern panhandle
of West Virginia, and northern Virginia. The water equivalent in this
snow, or the amount of water that will be released when the snow
melts, is 1/2 to nearly 1 1/2 inches and, in the absence of a heavy
rain event, is not considered to be hydrologically significant.
Little or no snow is on the ground elsewhere in the southern portion
of the MARFC service area.
Current (December 12) streamflow data from the U.S. Geological
Survey shows that streamflows are near or above normal. Groundwater
levels are generally near or above normal.
The weather outlook for the next couple of weeks calls for near or
below average precipitation for the first half of the outlook but then
near or above normal precipitation for the second half. Temperatures
are expected to begin the period below normal but then rebound back to
above normal. The NWS Climate Prediction Center's 30-day outlook for
December as well as the 90 day outlook for December, 2013 through
February, 2014 calls for near average precipitation and temperatures.
Recent storminess has essentially eliminated dry conditions. The
outlook for water resources and supplies is good across all of the
southern portion of the MARFC service area. Water resources and
supplies are sufficient to abundant.