Northwest Montgomery Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Areal Flood Warning
Issued: 1:35 AM EDT Mar. 22, 2019 – National Weather Service

The National Weather Service in Sterling Virginia has extended the

* Flood Warning for...
western Carroll County in north central Maryland...
Montgomery County in central Maryland...
eastern Frederick County in north central Maryland...

* until 600 am EDT.

* At 132 am EDT, stream gauges indicated flooding was still
occurring across the warned area. Gauges along Rock Creek are
indicating stream levels beginning to fall but remain above flood
stage. Gauges along the Monocacy River are still showing rises,
especially near the Bridgeport area in Carroll and Frederick
counties. Flooding may still be occurring elsewhere.

* Some locations that may experience flooding include...
Germantown, Rockville, Bethesda, Gaithersburg, Olney, Damascus,
Lansdowne, Lowes Island, Poolesville, Aspen Hill, Potomac, North
Bethesda, Montgomery Village, North Potomac, Redland, Great Falls,
Countryside, Chevy Chase, North Kensington and Mount Airy.

Precautionary/preparedness actions...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.


Lat... Lon 3972 7704 3936 7713 3934 7719 3927 7714
      3923 7707 3913 7707 3900 7704 3893 7712
      3897 7715 3898 7724 3902 7725 3905 7730
      3907 7746 3915 7753 3929 7737 3959 7724
      3961 7732 3972 7727


Mm


1009 PM EDT Thu Mar 21 2019

The river Flood Warning continues for
the Seneca Creek at Dawsonville.
* Until Friday evening.
* At 10 PM Thursday the stage was 8.7 feet and rising.
* Flood stage is 7.5 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent activity... the maximum river stage in the 24 hours ending at
10 PM Thursday was 8.7 feet.
* Impact... at 7.5 feet, portions of the Seneca Creek Greenway are
flooded. A small portion of Berryville Road west of Darnestown
begins to flood.
* Flood history... this crest compares to a previous crest of 8.9 feet
on Jul 29 2017.


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

Seneca Creek
Dawsonville 7.5 8.7 Thu 10 PM 9.1 8.8 7.0 5.0

Lat... Lon 3914 7736 3914 7730 3912 7729 3909 7730
      3907 7731 3907 7736 3910 7736


Dhof



Hydrologic Statement
Issued: 4:19 PM EDT Mar. 21, 2019 – National Weather Service

* at 4 PM Thursday the stage was 5.4 feet.
* Flood stage is 7.5 feet.
* No flooding is currently forecast.
* Forecast... the river will rise to near 7.4 feet overnight tonight.
* Impact... at 7.5 feet... portions of the Seneca Creek Greenway are
flooded. A small portion of Berryville Road west of Darnestown
begins to flood.
* Flood history... this crest compares to a previous crest of 7.6 feet
on Feb 4 2016.



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

Seneca Creek
Dawsonville 7.5 5.4 Thu 4 PM 5.8 7.4 7.2

Lat... Lon 3914 7736 3914 7730 3912 7729 3909 7730
      3907 7731 3907 7736 3910 7736




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