WaterWatch -- Current water resources conditions
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WaterWatch -- Current water resources conditions |
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| Map of 7-day average streamflow compared to historical streamflow for the day of the year (United States) |
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| Explanation - Percentile classes | |||||||
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| New low | < 10 | 10 - 24 | 25 - 75 | 76 - 90 | > 90 | New high | |
| The "7-day average streamflow" map shows the average streamflow conditions for the past 7 days. By averaging over past 7 days, the values on the map are more indicative of longer-term streamflow conditions than either the "Real-time streamflow" or the "Daily streamflow" maps. |
| The map depicts 7-day average streamflow conditions as computed at USGS gaging stations. The colors represent 7-day average streamflow compared to percentiles of 7-day average streamflow for the day of the year. This map represents conditions adjusted for this time of the year. Only stations having at least 30 years of record are used. |
| States containing no dots indicate locations where flow data for the current day are temporarily unavailable. During winter months, some states(or parts of states) may have fewer dots than at other times of the year due to ice effects. |
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The data used to produce this map are provisional and have not been reviewed or edited. They may be subject to significant change. A postscript file of this map is available here. |
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