Montgomery County, Maryland
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The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: Montgomery County, Maryland
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Flood Warning
MDC031-VAC107-202013-
/O.CON.KLWX.FL.W.0021.000000T0000Z-180522T0000Z/
/EDFM2.2.ER.180519T0000Z.180520T1700Z.180521T1800Z.UU/
414 AM EDT Sun May 20 2018

The Flood Warning continues for
The Potomac River at Edwards Ferry.
* Until Monday evening.
* At 4 AM Sunday the stage was 17.6 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
4 AM Sunday was 17.6 feet.
* Forecast...The river will continue rising to near 17.9 feet by
early this afternoon. The river will fall below flood stage
mid-afternoon tomorrow.
* Impact...At 18.5 feet...The parking lot at Edwards Ferry is
completely covered by water. The parking lot at Seneca is partially
flooded.
* Flood history...This crest compares to a previous crest of 17.6 feet
on Feb 5 2016.

&&


River Flood Observed 2PM 8PM 2AM 8AM Crest
Location Stage Stg Day Time Sun Sun Mon Mon Stg Day Time

Potomac River
Edwards Ferry 15.0 17.6 Sun 4 AM 17.8 17.6 17.1 16.3 17.9 Sun 1 PM
&&

LAT...LON 3923 7744 3913 7745 3908 7730 3903 7736
3905 7745 3911 7755 3920 7754

$$

Flood Warning
MDC031-VAC059-107-202014-
/O.EXT.KLWX.FL.W.0022.180520T1800Z-180521T0100Z/
/BRKM2.1.ER.180520T1800Z.180520T1800Z.180520T1900Z.NO/
415 AM EDT Sun May 20 2018

...Flood Warning extended until this evening...
The Flood Warning continues for
The Potomac River at Little Falls.
* From mid-afternoon today until this evening.
* At 4 AM Sunday the stage was 9.7 feet.
* Flood stage is 10.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by this afternoon and crest
near 10.0 feet. The river will fall below flood stage by this evening.
* Impact...At 10.0 feet...Water begins to overflow the banks into low
lying areas on the Maryland side of the river near Little Falls.
* Flood history...This crest compares to a previous crest of 10.3 feet
on Oct 31 2012.

&&


River Flood Observed 2PM 8PM 2AM 8AM Crest
Location Stage Stg Day Time Sun Sun Mon Mon Stg Day Time

Potomac River
Little Falls 10.0 9.7 Sun 4 AM 10.0 9.9 9.8 9.5 10.0 Sun 2 PM
&&

LAT...LON 3908 7730 3904 7723 3902 7721 3895 7706
3891 7712 3896 7724 3903 7736

$$

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