Public Information Statement
Issued by NWS Sterling, VA

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NOUS41 KLWX 241229

Public Information Statement
National Weather Service Baltimore MD/Washington DC
829 AM EDT Mon Oct 24 2016

...River Forecast and Warning Services to resume on the Potomac
River at Shepherdstown on Wednesday November 23rd...

In September 2016, the long-term stream gauge on the Potomac
River at Shepherdstown was returned to service by the United
States Geological Survey, after funding was obtained to resume
observation services. There had been no observations at
Shepherdstown since 2004, and at that time the location was
downgraded to a categorical-only forecast. In 2010, warning
services were also discontinued due to changes which require a
forecast crest in order to issue a river flood warning.

With observations having resumed, the National Weather Service
will resume providing routine forecasts, as well as warning
services, on Wednesday, November 23rd, 2016. Forecasts will be
issued daily, extending out 72 hours. Warnings will be issued when
the 15 foot flood stage is expected to be exceeded.

With the addition of this forecast point in the Potomac River, the
areas covered by river flood warnings will be adjusted. The
forecast point at Williamsport -- which previously covered all
areas of the river in Berkeley County, WV and adjacent areas of
Washington County, MD -- will now extend from the Morgan/Berkeley
County border to just downstream of Interstate 81.

The Shepherdstown forecast point will extend from just downstream
of Interstate 81 to near the mouth of Antietam Creek, including
portions of Berkeley, Jefferson, and Washington Counties. The
Harpers Ferry forecast point will extend from near the mouth of
Antietam Creek to the Washington/Frederick County border.

Interests near the river in Berkeley...Jefferson...and Washington
Counties should pay close attention to the text of flood warnings
when they are issued, since multiple warning locations will cover
the counties after these changes take effect, and only some
portions of the river may be expected to flood in a given event.

Once again, forecast and warning services will resume on the
Potomac River at Shepherdstown, West Virginia on November 23rd,

If you have any questions about this resumed forecast and warning
service, please contact Senior Service Hydrologist Jason Elliott

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