Drought Information Statement
Issued by NWS Sterling, VA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3
000
AXUS71 KLWX 041639
DGTLWX
DCC001-MDC003-005-009-013-017-021-025-027-031-033-037-510-VAC003-
013-015-047-059-061-079-099-107-113-125-137-139-153-157-165-177-
179-187-510-540-600-610-630-660-683-685-790-820-182300-

Drought Information Statement
National Weather Service Baltimore MD/Washington DC
1138 AM EST Thu Jan 4 2018

...DROUGHT CONDITIONS CONTINUING TO GRADUALLY WORSEN...

SYNOPSIS...
As of January 2nd 2018, the U.S. Drought Monitor indicates that
drought conditions are continuing to gradually worsen across much
of the region.

D1 (Moderate Drought) conditions are now designated for almost
all of northern and central Virginia, with the exception of
Highland, Page, Shenandoah, Frederick, and Clarke Counties. The
D1 area in Virginia has increased slightly since the prior
statement.

D1 (Moderate Drought) conditions are still designated in the
District of Columbia and most of the Baltimore and Washington
metropolitan areas in Maryland. This has increased slightly in
area since last week. Most of the remainder of the area is
designated as D0 (Abnormally Dry), except for portions of the
Potomac Highlands.

SUMMARY OF IMPACTS...
State and Local Declarations:
A Drought Watch has been declared by the Virginia Department of
Environmental Quality (DEQ) for all of northern Virginia, except
for King George County and communities whose water supplies come
from the Potomac River or Occoquan Reservoir. No other state or
local declarations are known as of the time of this statement.

Hydrologic Impacts:
Soil moisture is well below normal throughout the Moderate Drought
area, and is lowest in the immediate DC area, which is below the
5th percentile. These conditions are slightly worse than last
week.

Groundwater levels typically bottom out for the season in
September or October, but this year have continued to fall
through November and December due to the dry conditions. Many
monitoring wells are now well below normal and a few are at the
lowest on record for this time of year.

Some municipalities implement voluntary or mandatory water
restrictions when streamflow levels drop. Please check to see if
your community is included in these water restrictions.

CLIMATE SUMMARY...
Precipitation remains difficult to come by across the region. In
the last 30 days (since early December), between a half inch and
inch and a half liquid equivalent precipitation has fallen. This
is less than half of normal, and a swath from Nelson County
Virginia to the DC metro area is at less than 25 percent of
normal.

The 60 day deficits in the Moderate Drought area are still 2 to 6
inches, with 90 day deficits of 2 to 8 inches. There is an area
along the Blue Ridge and in the Charlottesville area that has even
longer-term rainfall deficits, and this area could be close to
further degradation of drought status in the coming weeks.

PRECIPITATION/TEMPERATURE OUTLOOK...
Little relief is expected in the short term. Precipitation through
next Thursday (January 11th) is expected to be between a quarter
and three-quarters of an inch, and all of that is expected to
occur on Monday. Some of it will be in the form of liquid; some
may fall as freezing or frozen precipitation. If the higher
precipitation amounts are realized, it could actually be near normal
for the week.

The outlook for Week Two (January 11-17) actually favors above
normal precipitation with near normal temperatures. The
experimental Weeks 3 and 4 outlook through January 26th also
favors above normal precipitation.

The Drought Outlook favors expansion of drought in January but
improvement in the drought conditions is favored by early spring.

HYDROLOGIC SUMMARY AND OUTLOOK...
Streamflows across the area are below to much below normal, as of
January 4th, and most are affected by ice at this time. There
could be some improvement in streamflow levels after Monday`s
precipitation, but given the ice effects on the rivers, and the
uncertainty with precipitation type, this is somewhat
unpredictable.

NEXT ISSUANCE DATE...
The next scheduled issuance of the Drought Statement will be
Thursday, January 18th, 2018. A supplemental update will be
issued on Thursday, January 11th, if conditions change enough to
warrant an update.

&&

RELATED WEB SITES...
Additional information on current drought conditions may be found
at the following web addresses...

US Drought Monitor...http://www.droughtmonitor.unl.edu
NWS Drought Page...http://www.nws.noaa.gov/om/drought
Climate Prediction Center (CPC)...http://www.cpc.ncep.noaa.gov

ADDITIONAL RIVER INFORMATION...
National Weather Service...http://water.weather.gov
US Geological Survey...http://water.usgs.gov

ACKNOWLEDGMENTS...
The drought monitor is a multi-agency effort involving NOAA`s
National Weather Service and National Climatic Data Center, the
USDA, state and regional center climatologists, and the National
Drought Mitigation Center. Information for this statement has
been gathered from NWS and FAA observation sites, State
Cooperative Extension Services, the USDA, USACE, and USGS.

QUESTIONS OR COMMENTS...
If you have questions or comments about this Drought Information
Statement...please contact...

National Weather Service
43858 Weather Service Road
Sterling, VA 20166
Phone: 703-996-2200
lwxwebmaster@noaa.gov

$$

JE



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.