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News - updated November 2009
 

Tuesday Nov 24, 2009 - We have discovered that the Channel velocity (chan_velocity) and Channel area (chan_area) are transposed in the html (and rdb ) outputs. The USGS Water Data for the Nation team is investigating the problem and is giving it our highest priority. We appreciate your patience while we fix the problem.

USGS Real-Time Water Data for Dist. of Columbia

All Data Times In MD-DE-DC Are Eastern Standard Time

  

Daily Streamflow Conditions

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Stream gage levels in Dist. of Columbia, relative to 30 year average. 01654000: Flow=149cfs,Stage=3.26ft,2009-11-24 08:45,High,ACCOTINK CREEK NEAR ANNANDALE, VA 01651000: Flow=316cfs,Stage=2.59ft,2009-11-24 08:30,High,NW BRANCH ANACOSTIA RIVER NEAR HYATTSVILLE, MD 01649500: Flow=1050cfs,Stage=3.83ft,2009-11-24 05:45,High,NORTH EAST BRANCH ANACOSTIA RIVER AT RIVERDALE, MD 01648000: Flow=405cfs,Stage=4.07ft,2009-11-24 08:15,High,ROCK CREEK AT SHERRILL DRIVE WASHINGTON, DC 01653000: Flow=147cfs,Stage=2.27ft,2009-11-24 08:35,>90,CAMERON RUN AT ALEXANDRIA, VA 01652500: Flow=52cfs,Stage=4.51ft,2009-11-24 08:55,>90,FOURMILE RUN AT ALEXANDRIA, VA 01646500: Flow=10700cfs,Stage=4.03ft,Floodstage=10.0ft,2009-11-24 08:45,76-90,POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA 01651800: Flow=34cfs,Stage=5.11ft,2009-11-24 08:15,Not ranked,WATTS BRANCH AT WASHINGTON, DC 01651750: Stage=0.27ft,2009-11-24 08:36:00,Not ranked,ANACOSTIA RIVER AQUATIC GARDENS AT WASHINGTON, DC 01650800: Flow=52cfs,Stage=1.67ft,2009-11-24 05:45,Not ranked,SLIGO CREEK NEAR TAKOMA PARK, MD 01647600: Stage=2.54ft,2009-11-24 08:06:00,Not ranked,POTOMAC RIVER AT WISCONSIN AVE, WASHINGTON, DC 01646305: Flow=4.3cfs,Stage=1.99ft,2009-11-24 09:00,Not ranked,DEAD RUN AT WHANN AVENUE NEAR MCLEAN, VA
Explanation
[color code for] High
[color code for] > 90th percentile
[color code for] 75th - 89th percentile
[color code for] 25th - 74th percentile
[color code for] 10th - 24th percentile
[color code for] < 10th percentile
[color code for] Low
[color code for] Not ranked
The colored dots on this map depict streamflow conditions as a percentile, which is computed from the period of record for the current day of the year. Only stations with at least 30 years of record are used.
The gray circles indicate other stations that were not ranked in percentiles either because they have fewer than 30 years of record or because they report parameters other than streamflow. Some stations, for example, measure stage only.


Statewide Streamflow Table


Statewide Ground-Water Table


Statewide Water-Quality Table


Real-time data typically are recorded at 15-60 minute intervals, stored onsite, and then transmitted to USGS offices every 1 to 4 hours, depending on the data relay technique used. Recording and transmission times may be more frequent during critical events. Data from real-time sites are relayed to USGS offices via satellite, telephone, and/or radio and are available for viewing within minutes of arrival. All real-time data are provisional and subject to revision.
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Title: USGS Real-Time Water Data for Dist. of Columbia
URL: http://waterdata.usgs.gov/dc/nwis/rt?

 Page Contact Information: Dist. of Columbia Water-Data Support Team
Page Last Modified: 2009-11-24 10:06:44 EST
1.45   1.42 nadww01