New event. Flood Warning from 9/23/2021 4:00 PM to 9/24/2021 4:25 AM EDT for Central Maryland. More information.
Interactive NWS Alert
Radar valid at 425 am EDT, Sep 24th 2021
...The National Weather Service in Baltimore MD/Washington DC has
issued a Flood Warning for the following rivers in Maryland...
Monocacy River near Frederick affecting Frederick County.
For the Monocacy River...including Frederick...Minor flooding is
118 PM EDT Thu Sep 23 2021
The National Weather Service in Sterling Virginia has issued a
* Flood Warning for
the Monocacy River near Frederick.
* Until late tonight.
* At 1:01 PM EDT Thursday the stage was 14.7 feet, or 0.3 feet below
* Flood stage is 15.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late
this afternoon to a crest of 15.4 feet this evening. It will then
fall below flood stage late this evening.
* Impact...At 15.0 feet, Both banks of the river are flooded. Water
begins to flood low-lying fields at Monocacy National Battlefield.
Water reaches the access road of the Frederick city wastewater
treatment plant. Backwater flooding is occurring on several area
creeks, particularly Carroll Creek in Frederick.
* Flood History...This crest compares to a previous crest of 15.3
feet on 06/28/2006.
River Name Fld Observed Thu Fri Fri Crest
Location Stg Stg Day/Time 8PM 2AM 8AM Stg Time Date
Frederick 15.0 14.7 Thu 1 pm 15.4 14.4 13.3 15.4 8pm Thu
LAT...LON 3958 7738 3955 7731 3940 7735 3924 7741
3922 7745 3926 7748 3951 7742
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