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Flood-Only Points Changing to Daily Forecast Points

Beginning Thursday, September 29th, 2011, most of the river forecast
points in the Hydrologic Service Area (HSA) of the National Weather 
Service Baltimore/Washington will change from flood-only points to 
daily forecast points. This change is in response to user requests 
for low water and non-flood rise forecasts. 

Locations that will become daily forecast points on 9/29 are:
* South Branch Potomac River at Franklin, WV
* South Fork South Branch Potomac River at Moorefield, WV
* North Branch Potomac River at Kitzmiller, MD
* North Branch Potomac River at Luke, MD
* Wills Creek at Cumberland, MD
* Conococheague Creek near Fairview, MD
* Antietam Creek at Sharpsburg, MD
* Monocacy River at Frederick, MD
* Potomac River at Point of Rocks, MD
* Seneca Creek near Dawsonville, MD
* Goose Creek near Leesburg, VA
* Opequon Creek near Martinsburg, WV
* North Fork Shenandoah River at Cootes Store, VA
* North Fork Shenandoah River at Strasburg, VA
* South River at Waynesboro, VA
* South Fork Shenandoah River at Lynnwood, VA
* South Fork Shenandoah River at Front Royal, VA

These points will be forecast routinely each morning, with a 48-hour 
forecast provided. In times of high water, forecasts will be updated 
every 6 to 8 hours.

A small subset of current river forecast points will not become daily 
on 9/29. Due to a lack of real-time gauge information along 
the middle mainstem Potomac River, forecast points at Williamsport, MD 
and Harpers Ferry, WV will remain crest-only, meaning their forecast 
will only be issued as a single crest value. Only a categorical 
forecast of minor, moderate, or major flooding will remain available 
at Shepherdstown, WV.

The river forecast point on Georges Creek near Westernport, MD will 
remain flood-only. This location responds rapidly to heavy rainfall 
and more quickly than a routine river forecast would indicate. 

Lastly, due to tidal influences, the river forecast point on the 
Rappahannock River at Fredericksburg City Dock will remain a 
flood-only forecast point. Additional changes on the Rappahannock, 
including the issuance of daily forecasts in the non-tidal section 
of the river near Fredericksburg, are being investigated and will 
be announced once finalized.

National Weather Service
Weather Forecast Office Baltimore/Washington
43858 Weather Service Rd.
Sterling, VA 20166
Phone: (703) 996-2200
Page last modified: Sep 19, 2011 2:53 PM EDT
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