Eastern Loudoun Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flood Warning
Issued: 10:05 PM EST Dec. 16, 2018 – National Weather Service

... Flood Warning extended until Tuesday afternoon...
the Flood Warning continues for
the Potomac River at Little Falls.
* From overnight tonight until Tuesday afternoon.
* At 10 PM Sunday the stage was 9.4 feet.
* Flood stage is 10.0 feet.
* Moderate flooding is forecast.
* Forecast... rise above flood stage by overnight tonight and crest
near 12.0 feet by early tomorrow afternoon. The river will fall
below flood stage by late Tuesday morning.
* Impact... at 12.0 feet... the c&o canal overflows at the Great Falls
tavern. Water covers the towpath in many areas.
* Flood history... this crest compares to a previous crest of 11.0 feet
on Sep 29 2018.


River flood observed 1am 7am 1pm 7pm crest
location stage stg day time Mon Mon Mon Mon stg day time

Potomac River
Little Falls 10.0 9.4 sun 10 PM 9.9 11.3 12.0 11.8 12.0 Mon 1 PM

Lat... Lon 3908 7730 3904 7723 3902 7721 3895 7706
      3891 7712 3896 7724 3903 7736




1004 PM EST sun Dec 16 2018

... Flood Warning extended until late Tuesday night...
the Flood Warning continues for
the Potomac River at Edwards Ferry.
* Until late Tuesday night.
* At 10 PM Sunday the stage was 18.8 feet.
* Flood stage is 15.0 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Recent activity... the maximum river stage in the 24 hours ending at
10 PM Sunday was 18.8 feet.
* Forecast... the river will continue rising to near 21.0 feet by
early tomorrow afternoon. The river will fall below flood stage
early Tuesday evening.
* Impact... at 20.0 feet... the basements of the Edwards Ferry
lockhouse and rileys lockhouse are flooded. Backwater flooding may
affect homes on the Loudoun County side of the river near Broad Run
in Sterling.
* Flood history... this crest compares to a previous crest of 21.6 feet
on Sep 29 2018.


River flood observed 1am 7am 1pm 7pm crest
location stage stg day time Mon Mon Mon Mon stg day time

Potomac River
Edwards Ferry 15.0 18.8 sun 10 PM 19.3 20.5 21.0 20.2 21.0 Mon 1 PM

Lat... Lon 3923 7744 3913 7745 3908 7730 3903 7736
      3905 7745 3911 7755 3920 7754




958 PM EST sun Dec 16 2018

... Flood Warning extended until Tuesday afternoon...
the Flood Warning continues for
the Potomac River at Point of Rocks.
* Until Tuesday afternoon.
* At 9 PM Sunday the stage was 19.5 feet.
* Flood stage is 16.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Recent activity... the maximum river stage in the 24 hours ending at
9 PM Sunday was 19.5 feet.
* Forecast... the river will continue rising to near 22.5 feet by
tomorrow morning. The river will fall below flood stage Tuesday
morning.
* Impact... at 23.0 feet... floodwaters completely cover the Comfort
station at the Brunswick boat ramp, and reach the Comfort station
at the Point of Rocks boat ramp. The upper parking lot at the Point
of Rocks boat ramp begins to flood.
* Flood history... this crest compares to a previous crest of 22.6 feet
on may 17 2014.


River flood observed 1am 7am 1pm 7pm crest
location stage stg day time Mon Mon Mon Mon stg day time

Potomac River
Point of Rock 16.0 19.5 sun 9 PM 21.2 22.5 21.8 20.3 22.5 Mon 7 am

Lat... Lon 3936 7766 3934 7757 3926 7747 3923 7744
      3920 7754 3927 7760 3930 7770