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Over 200 USGS real-time streamgages used to support NWS river forecasts and warnings are at risk of being discontinued. Click here for more information from the USGS...


NOTE: Gauge readings may be delayed or temporarily unavailable due to satellite communication issues.
Weather Forecast Office (Baltimore/Washington) Sterling, VA Middle Atlantic River Forecast Center
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Antietam Creek near Sharpsburg Stage (ft)Flow (kcfs)Highest Observation: 3.09 ft at 11:30PM May 17, 2013Highest Observation: 3.09 ft at 11:45PM May 17, 2013Highest Observation: 3.09 ft at 12:00AM May 18, 2013Highest Observation: 3.09 ft at 12:15AM May 18, 2013Highest Observation: 3.09 ft at 12:30AM May 18, 2013Highest Observation: 3.09 ft at 12:45AM May 18, 2013Highest Observation: 3.09 ft at 1:00AM May 18, 2013Highest Observation: 3.09 ft at 1:15AM May 18, 2013Highest Observation: 3.09 ft at 1:30AM May 18, 2013Highest Observation: 3.09 ft at 1:45AM May 18, 2013Highest Observation: 3.09 ft at 2:00AM May 18, 2013Highest Observation: 3.09 ft at 2:15AM May 18, 2013Highest Observation: 3.09 ft at 2:30AM May 18, 2013Highest Observation: 3.09 ft at 2:45AM May 18, 2013Highest Observation: 3.09 ft at 3:00AM May 18, 2013Highest Observation: 3.09 ft at 3:15AM May 18, 2013Observed: 3.08 ft at 3:30AM May 18, 2013Observed: 3.08 ft at 3:45AM May 18, 2013Highest Observation: 3.09 ft at 4:00AM May 18, 2013Highest Observation: 3.09 ft at 4:15AM May 18, 2013Observed: 3.08 ft at 4:30AM May 18, 2013Highest Observation: 3.09 ft at 4:45AM May 18, 2013Observed: 3.08 ft at 5:00AM May 18, 2013Observed: 3.08 ft at 5:15AM May 18, 2013Observed: 3.08 ft at 5:30AM May 18, 2013Observed: 3.08 ft at 5:45AM May 18, 2013Observed: 3.08 ft at 6:00AM May 18, 2013Observed: 3.08 ft at 6:15AM May 18, 2013Observed: 3.08 ft at 6:30AM May 18, 2013Observed: 3.08 ft at 6:45AM May 18, 2013Observed: 3.08 ft at 7:00AM May 18, 2013Observed: 3.08 ft at 7:15AM May 18, 2013Observed: 3.08 ft at 7:30AM May 18, 2013Observed: 3.08 ft at 7:45AM May 18, 2013Observed: 3.08 ft at 8:00AM May 18, 2013Observed: 3.08 ft at 8:15AM May 18, 2013Observed: 3.08 ft at 8:30AM May 18, 2013Observed: 3.08 ft at 8:45AM May 18, 2013Observed: 3.08 ft at 9:00AM May 18, 2013Observed: 3.07 ft at 9:15AM May 18, 2013Observed: 3.07 ft at 9:30AM May 18, 2013Observed: 3.07 ft at 9:45AM May 18, 2013Observed: 3.07 ft at 10:00AM May 18, 2013Observed: 3.07 ft at 10:15AM May 18, 2013Observed: 3.07 ft at 10:30AM May 18, 2013Observed: 3.07 ft at 10:45AM May 18, 2013Observed: 3.06 ft at 11:00AM May 18, 2013Observed: 3.06 ft at 11:15AM May 18, 2013Observed: 3.06 ft at 11:30AM May 18, 2013Observed: 3.06 ft at 11:45AM May 18, 2013Observed: 3.06 ft at 12:00PM May 18, 2013Observed: 3.06 ft at 12:15PM May 18, 2013Observed: 3.06 ft at 12:30PM May 18, 2013Observed: 3.06 ft at 12:45PM May 18, 2013Observed: 3.06 ft at 1:00PM May 18, 2013Observed: 3.05 ft at 1:15PM May 18, 2013Observed: 3.06 ft at 1:30PM May 18, 2013Observed: 3.05 ft at 1:45PM May 18, 2013Observed: 3.05 ft at 2:00PM May 18, 2013Observed: 3.05 ft at 2:15PM May 18, 2013Observed: 3.05 ft at 2:30PM May 18, 2013Observed: 3.05 ft at 2:45PM May 18, 2013Observed: 3.05 ft at 3:00PM May 18, 2013Observed: 3.05 ft at 3:15PM May 18, 2013Observed: 3.05 ft at 3:30PM May 18, 2013Observed: 3.05 ft at 3:45PM May 18, 2013Observed: 3.04 ft at 4:00PM May 18, 2013Observed: 3.05 ft at 4:15PM May 18, 2013Observed: 3.05 ft at 4:30PM May 18, 2013Observed: 3.05 ft at 4:45PM May 18, 2013Observed: 3.05 ft at 5:00PM May 18, 2013Observed: 3.05 ft at 5:15PM May 18, 2013Observed: 3.05 ft at 5:30PM May 18, 2013Observed: 3.05 ft at 5:45PM May 18, 2013Observed: 3.05 ft at 6:00PM May 18, 2013Observed: 3.05 ft at 6:15PM May 18, 2013Observed: 3.05 ft at 6:30PM May 18, 2013Observed: 3.05 ft at 6:45PM May 18, 2013Observed: 3.05 ft at 7:00PM May 18, 2013Observed: 3.05 ft at 7:15PM May 18, 2013Observed: 3.05 ft at 7:30PM May 18, 2013Observed: 3.05 ft at 7:45PM May 18, 2013Observed: 3.05 ft at 8:00PM May 18, 2013Observed: 3.05 ft at 8:15PM May 18, 2013Observed: 3.05 ft at 8:30PM May 18, 2013Observed: 3.05 ft at 8:45PM May 18, 2013Observed: 3.05 ft at 9:00PM May 18, 2013Observed: 3.05 ft at 9:15PM May 18, 2013Observed: 3.05 ft at 9:30PM May 18, 2013Observed: 3.05 ft at 9:45PM May 18, 2013Observed: 3.05 ft at 10:00PM May 18, 2013Observed: 3.05 ft at 10:15PM May 18, 2013Observed: 3.05 ft at 10:30PM May 18, 2013Observed: 3.05 ft at 10:45PM May 18, 2013Observed: 3.05 ft at 11:00PM May 18, 2013Observed: 3.05 ft at 11:15PM May 18, 2013Observed: 3.05 ft at 11:30PM May 18, 2013Observed: 3.05 ft at 11:45PM May 18, 2013Observed: 3.05 ft at 12:00AM May 19, 2013Observed: 3.05 ft at 12:15AM May 19, 2013Observed: 3.05 ft at 12:30AM May 19, 2013Observed: 3.05 ft at 12:45AM May 19, 2013Observed: 3.04 ft at 1:00AM May 19, 2013Observed: 3.04 ft at 1:15AM May 19, 2013Observed: 3.04 ft at 1:30AM May 19, 2013Observed: 3.04 ft at 1:45AM May 19, 2013Observed: 3.04 ft at 2:00AM May 19, 2013Observed: 3.04 ft at 2:15AM May 19, 2013Observed: 3.04 ft at 2:30AM May 19, 2013Observed: 3.04 ft at 2:45AM May 19, 2013Observed: 3.04 ft at 3:00AM May 19, 2013Observed: 3.04 ft at 3:15AM May 19, 2013Observed: 3.04 ft at 3:30AM May 19, 2013Observed: 3.04 ft at 3:45AM May 19, 2013Observed: 3.04 ft at 4:00AM May 19, 2013Observed: 3.04 ft at 4:15AM May 19, 2013Observed: 3.04 ft at 4:30AM May 19, 2013Observed: 3.04 ft at 4:45AM May 19, 2013Observed: 3.04 ft at 5:00AM May 19, 2013Observed: 3.04 ft at 5:15AM May 19, 2013Observed: 3.04 ft at 5:30AM May 19, 2013Observed: 3.04 ft at 5:45AM May 19, 2013Observed: 3.04 ft at 6:00AM May 19, 2013Observed: 3.04 ft at 6:15AM May 19, 2013Observed: 3.04 ft at 6:30AM May 19, 2013Observed: 3.04 ft at 6:45AM May 19, 2013Observed: 3.04 ft at 7:00AM May 19, 2013Observed: 3.04 ft at 7:15AM May 19, 2013Observed: 3.04 ft at 7:30AM May 19, 2013Observed: 3.04 ft at 7:45AM May 19, 2013Observed: 3.04 ft at 8:00AM May 19, 2013Observed: 3.04 ft at 8:15AM May 19, 2013Observed: 3.04 ft at 8:30AM May 19, 2013Observed: 3.04 ft at 8:45AM May 19, 2013Observed: 3.04 ft at 9:00AM May 19, 2013Observed: 3.04 ft at 9:15AM May 19, 2013Observed: 3.04 ft at 9:30AM May 19, 2013Observed: 3.04 ft at 9:45AM May 19, 2013Observed: 3.04 ft at 10:00AM May 19, 2013Observed: 3.04 ft at 10:15AM May 19, 2013Observed: 3.04 ft at 10:30AM May 19, 2013Observed: 3.04 ft at 10:45AM May 19, 2013Observed: 3.04 ft at 11:00AM May 19, 2013Observed: 3.03 ft at 11:15AM May 19, 2013Observed: 3.03 ft at 11:30AM May 19, 2013Observed: 3.03 ft at 11:45AM May 19, 2013Observed: 3.03 ft at 12:00PM May 19, 2013Observed: 3.03 ft at 12:15PM May 19, 2013Observed: 3.03 ft at 12:30PM May 19, 2013Observed: 3.03 ft at 12:45PM May 19, 2013Observed: 3.03 ft at 1:00PM May 19, 2013Observed: 3.03 ft at 1:15PM May 19, 2013Observed: 3.03 ft at 1:30PM May 19, 2013Observed: 3.03 ft at 1:45PM May 19, 2013Observed: 3.03 ft at 2:00PM May 19, 2013Observed: 3.03 ft at 2:15PM May 19, 2013Observed: 3.03 ft at 2:30PM May 19, 2013Observed: 3.03 ft at 2:45PM May 19, 2013Observed: 3.03 ft at 3:00PM May 19, 2013Observed: 3.02 ft at 3:15PM May 19, 2013Observed: 3.02 ft at 3:30PM May 19, 2013Observed: 3.02 ft at 3:45PM May 19, 2013Observed: 3.02 ft at 4:00PM May 19, 2013Observed: 3.02 ft at 4:15PM May 19, 2013Observed: 3.03 ft at 4:30PM May 19, 2013Observed: 3.02 ft at 4:45PM May 19, 2013Observed: 3.02 ft at 5:00PM May 19, 2013Observed: 3.03 ft at 5:15PM May 19, 2013Observed: 3.03 ft at 5:30PM May 19, 2013Observed: 3.02 ft at 5:45PM May 19, 2013Observed: 3.02 ft at 6:00PM May 19, 2013Observed: 3.03 ft at 6:15PM May 19, 2013Observed: 3.03 ft at 6:30PM May 19, 2013Observed: 3.03 ft at 6:45PM May 19, 2013Observed: 3.03 ft at 7:00PM May 19, 2013Observed: 3.03 ft at 7:15PM May 19, 2013Observed: 3.03 ft at 7:30PM May 19, 2013Observed: 3.03 ft at 7:45PM May 19, 2013Observed: 3.03 ft at 8:00PM May 19, 2013Observed: 3.03 ft at 8:15PM May 19, 2013Observed: 3.03 ft at 8:30PM May 19, 2013Observed: 3.03 ft at 8:45PM May 19, 2013Observed: 3.03 ft at 9:00PM May 19, 2013Observed: 3.03 ft at 9:15PM May 19, 2013Observed: 3.03 ft at 9:30PM May 19, 2013Observed: 3.03 ft at 9:45PM May 19, 2013Observed: 3.03 ft at 10:00PM May 19, 2013Observed: 3.03 ft at 10:15PM May 19, 2013Observed: 3.03 ft at 10:30PM May 19, 2013Observed: 3.03 ft at 10:45PM May 19, 2013Observed: 3.03 ft at 11:00PM May 19, 2013Observed: 3.03 ft at 11:15PM May 19, 2013Observed: 3.03 ft at 11:30PM May 19, 2013Observed: 3.03 ft at 11:45PM May 19, 2013Observed: 3.03 ft at 12:00AM May 20, 2013Observed: 3.03 ft at 12:15AM May 20, 2013Observed: 3.03 ft at 12:30AM May 20, 2013Observed: 3.03 ft at 12:45AM May 20, 2013Observed: 3.03 ft at 1:00AM May 20, 2013Observed: 3.03 ft at 1:15AM May 20, 2013Observed: 3.03 ft at 1:30AM May 20, 2013Observed: 3.03 ft at 1:45AM May 20, 2013Observed: 3.03 ft at 2:00AM May 20, 2013Observed: 3.03 ft at 2:15AM May 20, 2013Observed: 3.03 ft at 2:30AM May 20, 2013Observed: 3.03 ft at 2:45AM May 20, 2013Observed: 3.03 ft at 3:00AM May 20, 2013Observed: 3.03 ft at 3:15AM May 20, 2013Observed: 3.03 ft at 3:30AM May 20, 2013Observed: 3.03 ft at 3:45AM May 20, 2013Observed: 3.03 ft at 4:00AM May 20, 2013Observed: 3.03 ft at 4:15AM May 20, 2013Observed: 3.03 ft at 4:30AM May 20, 2013Observed: 3.03 ft at 4:45AM May 20, 2013Observed: 3.03 ft at 5:00AM May 20, 2013Observed: 3.03 ft at 5:15AM May 20, 2013Observed: 3.03 ft at 5:30AM May 20, 2013Observed: 3.03 ft at 5:45AM May 20, 2013Observed: 3.03 ft at 6:00AM May 20, 2013Observed: 3.03 ft at 6:15AM May 20, 2013Observed: 3.03 ft at 6:30AM May 20, 2013Observed: 3.03 ft at 6:45AM May 20, 2013Observed: 3.03 ft at 7:00AM May 20, 2013Observed: 3.03 ft at 7:15AM May 20, 2013Observed: 3.03 ft at 7:30AM May 20, 2013Observed: 3.03 ft at 7:45AM May 20, 2013Observed: 3.03 ft at 8:00AM May 20, 2013Observed: 3.03 ft at 8:15AM May 20, 2013Observed: 3.03 ft at 8:30AM May 20, 2013Observed: 3.03 ft at 8:45AM May 20, 2013Observed: 3.03 ft at 9:00AM May 20, 2013Observed: 3.03 ft at 9:15AM May 20, 2013Observed: 3.03 ft at 9:30AM May 20, 2013Observed: 3.02 ft at 9:45AM May 20, 2013Observed: 3.02 ft at 10:00AM May 20, 2013Observed: 3.02 ft at 10:15AM May 20, 2013Observed: 3.02 ft at 10:30AM May 20, 2013Observed: 3.02 ft at 10:45AM May 20, 2013Observed: 3.02 ft at 11:00AM May 20, 2013Observed: 3.02 ft at 11:15AM May 20, 2013Observed: 3.02 ft at 11:30AM May 20, 2013Observed: 3.02 ft at 11:45AM May 20, 2013Observed: 3.02 ft at 12:00PM May 20, 2013Observed: 3.02 ft at 12:15PM May 20, 2013Observed: 3.02 ft at 12:30PM May 20, 2013Observed: 3.01 ft at 12:45PM May 20, 2013Observed: 3.01 ft at 1:00PM May 20, 2013Observed: 3.01 ft at 1:15PM May 20, 2013Observed: 3.01 ft at 1:30PM May 20, 2013Observed: 3.01 ft at 1:45PM May 20, 2013Observed: 3.02 ft at 2:00PM May 20, 2013Observed: 3.01 ft at 2:15PM May 20, 2013Observed: 3.01 ft at 2:30PM May 20, 2013Observed: 3.01 ft at 2:45PM May 20, 2013Observed: 3.01 ft at 3:00PM May 20, 2013Observed: 3.01 ft at 3:15PM May 20, 2013Observed: 3.01 ft at 3:30PM May 20, 2013Observed: 3.01 ft at 3:45PM May 20, 2013Observed: 3.01 ft at 4:00PM May 20, 2013Observed: 3.01 ft at 4:15PM May 20, 2013Observed: 3.01 ft at 4:30PM May 20, 2013Observed: 3.01 ft at 4:45PM May 20, 2013Observed: 3.01 ft at 5:00PM May 20, 2013Observed: 3.01 ft at 5:15PM May 20, 2013Observed: 3.02 ft at 5:30PM May 20, 2013Observed: 3.01 ft at 5:45PM May 20, 2013Observed: 3.01 ft at 6:00PM May 20, 2013Observed: 3.02 ft at 6:15PM May 20, 2013Observed: 3.01 ft at 6:30PM May 20, 2013Observed: 3.02 ft at 6:45PM May 20, 2013Observed: 3.01 ft at 7:00PM May 20, 2013Observed: 3.01 ft at 7:15PM May 20, 2013Observed: 3.01 ft at 7:30PM May 20, 2013Observed: 3.01 ft at 7:45PM May 20, 2013Observed: 3.01 ft at 8:00PM May 20, 2013Observed: 3.01 ft at 8:15PM May 20, 2013Observed: 3.01 ft at 8:30PM May 20, 2013Observed: 3.01 ft at 8:45PM May 20, 2013Observed: 3.01 ft at 9:00PM May 20, 2013Observed: 3.01 ft at 9:15PM May 20, 2013Observed: 3.01 ft at 9:30PM May 20, 2013Observed: 3.01 ft at 9:45PM May 20, 2013Observed: 3.01 ft at 10:00PM May 20, 2013Observed: 3.01 ft at 10:15PM May 20, 2013Observed: 3.01 ft at 10:30PM May 20, 2013Observed: 3.01 ft at 10:45PM May 20, 2013Observed: 3.01 ft at 11:00PM May 20, 2013Observed: 3.01 ft at 11:15PM May 20, 2013Observed: 3.01 ft at 11:30PM May 20, 2013Observed: 3.01 ft at 11:45PM May 20, 2013Observed: 3.01 ft at 12:00AM May 21, 2013Observed: 3.01 ft at 12:15AM May 21, 2013Observed: 3.01 ft at 12:30AM May 21, 2013Observed: 3 ft at 1:45AM May 21, 2013Observed: 3 ft at 2:00AM May 21, 2013Observed: 3 ft at 2:15AM May 21, 2013Observed: 3 ft at 2:30AM May 21, 2013Observed: 3 ft at 2:45AM May 21, 2013Observed: 3 ft at 3:00AM May 21, 2013Observed: 3 ft at 3:15AM May 21, 2013Observed: 3 ft at 3:30AM May 21, 2013Observed: 3 ft at 3:45AM May 21, 2013Observed: 3 ft at 4:00AM May 21, 2013Observed: 3 ft at 4:15AM May 21, 2013Observed: 3 ft at 4:30AM May 21, 2013Observed: 3 ft at 4:45AM May 21, 2013Observed: 3 ft at 5:00AM May 21, 2013Observed: 3 ft at 5:15AM May 21, 2013Observed: 3 ft at 5:30AM May 21, 2013Observed: 3 ft at 5:45AM May 21, 2013Observed: 3 ft at 6:00AM May 21, 2013Observed: 3 ft at 6:15AM May 21, 2013Observed: 3 ft at 6:30AM May 21, 2013Observed: 3 ft at 6:45AM May 21, 2013Observed: 3 ft at 7:00AM May 21, 2013Observed: 3 ft at 7:15AM May 21, 2013Observed: 3 ft at 7:30AM May 21, 2013Observed: 3 ft at 7:45AM May 21, 2013Observed: 3 ft at 8:00AM May 21, 2013Observed: 3 ft at 8:15AM May 21, 2013Observed: 3 ft at 8:30AM May 21, 2013Observed: 3 ft at 8:45AM May 21, 2013Observed: 3 ft at 9:00AM May 21, 2013Observed: 3 ft at 9:15AM May 21, 2013Observed: 3 ft at 9:30AM May 21, 2013Observed: 3 ft at 9:45AM May 21, 2013Observed: 3 ft at 10:00AM May 21, 2013Observed: 3 ft at 10:15AM May 21, 2013Observed: 3 ft at 10:30AM May 21, 2013Observed: 2.99 ft at 10:45AM May 21, 2013Observed: 2.99 ft at 11:00AM May 21, 2013Observed: 2.99 ft at 11:15AM May 21, 2013Observed: 2.99 ft at 11:30AM May 21, 2013Observed: 2.99 ft at 11:45AM May 21, 2013Observed: 2.99 ft at 12:00PM May 21, 2013Observed: 2.99 ft at 12:15PM May 21, 2013Observed: 2.99 ft at 12:30PM May 21, 2013Observed: 2.99 ft at 12:45PM May 21, 2013Observed: 2.99 ft at 1:00PM May 21, 2013Observed: 2.99 ft at 1:15PM May 21, 2013Observed: 2.98 ft at 1:30PM May 21, 2013Observed: 2.98 ft at 1:45PM May 21, 2013Observed: 2.98 ft at 2:00PM May 21, 2013Observed: 2.98 ft at 2:15PM May 21, 2013Observed: 2.98 ft at 2:30PM May 21, 2013Observed: 2.98 ft at 2:45PM May 21, 2013Observed: 2.98 ft at 3:00PM May 21, 2013Observed: 2.98 ft at 3:15PM May 21, 2013Observed: 2.98 ft at 3:30PM May 21, 2013Observed: 2.98 ft at 3:45PM May 21, 2013Observed: 2.98 ft at 4:00PM May 21, 2013Observed: 2.98 ft at 4:15PM May 21, 2013Observed: 2.98 ft at 4:30PM May 21, 2013Observed: 2.98 ft at 4:45PM May 21, 2013Observed: 2.98 ft at 5:00PM May 21, 2013Observed: 2.98 ft at 5:15PM May 21, 2013Observed: 2.98 ft at 5:30PM May 21, 2013Observed: 2.98 ft at 5:45PM May 21, 2013Observed: 2.98 ft at 6:00PM May 21, 2013Observed: 2.98 ft at 6:15PM May 21, 2013Observed: 2.98 ft at 6:30PM May 21, 2013Observed: 2.98 ft at 6:45PM May 21, 2013Observed: 2.98 ft at 7:00PM May 21, 2013Observed: 2.98 ft at 7:15PM May 21, 2013Observed: 2.98 ft at 7:30PM May 21, 2013Observed: 2.98 ft at 7:45PM May 21, 2013Observed: 2.98 ft at 8:00PM May 21, 2013Observed: 2.98 ft at 8:15PM May 21, 2013Observed: 2.98 ft at 8:30PM May 21, 2013Observed: 2.98 ft at 8:45PM May 21, 2013Observed: 2.98 ft at 9:00PM May 21, 2013Observed: 2.98 ft at 9:15PM May 21, 2013Observed: 2.98 ft at 9:30PM May 21, 2013Observed: 2.98 ft at 9:45PM May 21, 2013Observed: 2.98 ft at 10:00PM May 21, 2013Observed: 2.97 ft at 10:15PM May 21, 2013Observed: 2.98 ft at 10:30PM May 21, 2013Observed: 2.98 ft at 10:45PM May 21, 2013Observed: 2.97 ft at 11:00PM May 21, 2013Observed: 2.97 ft at 11:15PM May 21, 2013Observed: 2.97 ft at 11:30PM May 21, 2013Observed: 2.98 ft at 11:45PM May 21, 2013Observed: 2.97 ft at 12:00AM May 22, 2013Observed: 2.97 ft at 12:15AM May 22, 2013Observed: 2.97 ft at 12:30AM May 22, 2013Observed: 2.97 ft at 12:45AM May 22, 2013Observed: 2.97 ft at 1:00AM May 22, 2013Observed: 2.97 ft at 1:15AM May 22, 2013Observed: 2.97 ft at 1:30AM May 22, 2013Observed: 2.97 ft at 1:45AM May 22, 2013Observed: 2.97 ft at 2:00AM May 22, 2013Observed: 2.97 ft at 2:15AM May 22, 2013Observed: 2.97 ft at 2:30AM May 22, 2013Observed: 2.97 ft at 2:45AM May 22, 2013Observed: 2.97 ft at 3:00AM May 22, 2013Observed: 2.97 ft at 3:15AM May 22, 2013Observed: 2.97 ft at 3:30AM May 22, 2013Observed: 2.97 ft at 3:45AM May 22, 2013Observed: 2.97 ft at 4:00AM May 22, 2013Observed: 2.97 ft at 4:15AM May 22, 2013Observed: 2.97 ft at 4:30AM May 22, 2013Observed: 2.97 ft at 4:45AM May 22, 2013Observed: 2.97 ft at 5:00AM May 22, 2013Observed: 2.97 ft at 5:15AM May 22, 2013Observed: 2.97 ft at 5:30AM May 22, 2013Observed: 2.97 ft at 10:45AM May 22, 2013Observed: 2.97 ft at 11:00AM May 22, 2013Observed: 2.97 ft at 11:15AM May 22, 2013Observed: 2.97 ft at 11:30AM May 22, 2013Observed: 2.97 ft at 11:45AM May 22, 2013Observed: 2.97 ft at 12:00PM May 22, 2013Observed: 2.96 ft at 12:15PM May 22, 2013Observed: 2.96 ft at 12:30PM May 22, 2013Observed: 2.96 ft at 12:45PM May 22, 2013Observed: 2.96 ft at 1:00PM May 22, 2013Observed: 2.96 ft at 1:15PM May 22, 2013Observed: 2.96 ft at 1:30PM May 22, 2013Observed: 2.95 ft at 1:45PM May 22, 2013Observed: 2.96 ft at 2:00PM May 22, 2013Observed: 2.95 ft at 2:15PM May 22, 2013Observed: 2.95 ft at 2:30PM May 22, 2013Observed: 2.95 ft at 2:45PM May 22, 2013Observed: 2.95 ft at 3:00PM May 22, 2013Observed: 2.95 ft at 3:15PM May 22, 2013Observed: 2.95 ft at 3:30PM May 22, 2013Observed: 2.95 ft at 3:45PM May 22, 2013Observed: 2.95 ft at 4:00PM May 22, 2013Observed: 2.95 ft at 4:15PM May 22, 2013Observed: 2.95 ft at 4:30PM May 22, 2013Observed: 2.95 ft at 4:45PM May 22, 2013Observed: 2.95 ft at 5:00PM May 22, 2013Observed: 2.95 ft at 5:15PM May 22, 2013Observed: 2.95 ft at 5:30PM May 22, 2013Observed: 2.95 ft at 5:45PM May 22, 2013Observed: 2.95 ft at 6:00PM May 22, 2013Observed: 2.95 ft at 6:15PM May 22, 2013Observed: 2.95 ft at 6:30PM May 22, 2013Observed: 2.95 ft at 6:45PM May 22, 2013Observed: 2.95 ft at 7:00PM May 22, 2013Observed: 2.95 ft at 7:15PM May 22, 2013Observed: 2.95 ft at 7:30PM May 22, 2013Observed: 2.95 ft at 7:45PM May 22, 2013Observed: 2.95 ft at 8:00PM May 22, 2013Observed: 2.95 ft at 8:15PM May 22, 2013Observed: 2.96 ft at 8:30PM May 22, 2013Observed: 2.96 ft at 8:45PM May 22, 2013Observed: 2.96 ft at 9:00PM May 22, 2013Observed: 2.96 ft at 9:15PM May 22, 2013Observed: 2.96 ft at 9:30PM May 22, 2013Observed: 2.95 ft at 9:45PM May 22, 2013Observed: 2.96 ft at 10:00PM May 22, 2013Observed: 2.96 ft at 10:15PM May 22, 2013Observed: 2.96 ft at 10:30PM May 22, 2013Forecast: 3 ft 2:00AM May 23, 2013Forecast: 3.1 ft 8:00AM May 23, 2013Forecast: 3.2 ft 2:00PM May 23, 2013Forecast: 3.3 ft 8:00PM May 23, 2013Forecast: 3.3 ft 2:00AM May 24, 2013Highest Forecast: 3.4 ft 8:00AM May 24, 2013Highest Forecast: 3.4 ft 2:00PM May 24, 2013Forecast: 3.3 ft 8:00PM May 24, 2013Forecast: 3.3 ft 2:00AM May 25, 2013Forecast: 3.3 ft 8:00AM May 25, 2013Forecast: 3.2 ft 2:00PM May 25, 2013Forecast: 3.2 ft 8:00PM May 25, 2013USGS--Water Resources of the United StatesSACM2(plotting HGIRG) Graph Created (11:16PM May 22, 2013)ObservedForecast (issued 8:48PM May 22)Latest observed value: 2.96 ft at 10:30 PM EDT 22-May-2013. Flood Stage is 8 ft
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About this graph
Tabular Data
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Antietam Creek near Sharpsburg are issued routinely year-round.
Return to Area Map
Upstream Gauge - near Waynesboro Upstream Gauge
Flood Categories (in feet)
Major Flood Stage:12
Moderate Flood Stage:10
Flood Stage:8
Action Stage:7

Historical Crests
(1) 16.73 ft on 07/20/1956
(2) 14.71 ft on 09/26/1975
(3) 14.30 ft on 06/23/1972
(4) 13.71 ft on 01/19/1996
(5) 11.90 ft on 07/11/1928
Show More Historical Crests

Low Water Records
(1) 1.43 ft on 08/01/1974
Legend
Gauge Location
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
15 WATER REACHES THE TOP OF THE ARCH OF THE OLD BURNSIDE BRIDGE AT ANTIETAM NATIONAL BATTLEFIELD AND THE TREELINE NEAR OLD BURNSIDE BRIDGE. WATER ALSO APPROACHES THE PARKING LOT OF THE PRY HOUSE MEDICAL MUSEUM.
12 WATER APPROACHES OUTBUILDINGS OFF HARPERS FERRY ROAD NEAR SHARPSBURG. SIGNIFICANT FLOODING OF LOW-LYING FIELDS NEAR THE CREEK IS OCCURRING.
10 LAND NEAR THE CREEK THROUGH ANTIETAM NATIONAL BATTLEFIELD IS FLOODED. THE LOWER PORTION OF A DRIVEWAY ADJOINING THE CREEK NEAR ROUTE 34 IS FLOODED. FLOODWATERS APPROACH AT LEAST ONE HOME ON THE LEFT BANK NEAR ROUTE 34.
9 WATER APPROACHES THE LOWEST CORNER OF THE OLD BURNSIDE BRIDGE. BURNSIDE BRIDGE ROAD IS FLOODED AND CLOSED...AND TRAILS ALONGSIDE THE CREEK IN ANTIETAM BATTLEFIELD ARE FLOODED.
8 A LOW SPOT ON BURNSIDE BRIDGE ROAD...ON THE SOUTH END OF ANTIETAM NATIONAL BATTLEFIELD...IS FLOODED AND IMPASSIBLE. FLOODING ON THE BATTLEFIELD ALONG THE CREEK IS ALSO OCCURRING...FLOODING SOME CREEKSIDE TRAILS AND NEARBY LAND. A FEW SMALL MONUMENTS NEAR BURNSIDE BRIDGE BECOME SURROUNDED BY WATER. FIELDS OFF BRANCH AVENUE IN SHARPSBURG BEGIN TO FLOOD.
7 WATER BEGINS TO OVERFLOW THE BANKS ON BOTH SIDES IN ANTIETAM NATIONAL BATTLEFIELD. WATER APPROACHES THE LOW SPOT ON BURNSIDE BRIDGE ROAD ON THE FAR SOUTHERN END OF THE BATTLEFIELD.
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Latitude: 39.449722° N, Longitude: 77.730278° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 8 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 311.05 ft 319.05 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
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NWS Information
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(Baltimore/Washington) Sterling Weather Forecast Office
43858 Weather Service Rd.
Sterling, VA 20166
(703) 996-2200
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