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Hurricane Harvey's Water Footprint

Hurricane Harvey's impact on precipitation and streamflow Map of Hurricane Harvey's water footprint Texas Mexico Louisiana Mississippi Gulf of Mexico Legend Inches per hour (county average precip) 0 to 0.1 0.1 to 0.2 0.2 to 0.3 0.3 to 0.4 0.4 to 0.5 0.5 to 0.6 0.6 to 0.7 0.7 to 0.8 > 0.8 Harvey USGS stream gage (featured) USGS stream gage Featured USGS gages (normalized discharge)
Hurricane Harvey approached the U.S. Gulf coast on August 25, 2017. In the map above, the hurricane's impact on precipitation and streamflow are shown. Normalized discharge (cubic feet per second) at a selection of U.S. Geological Survey gaging stations impacted by the hurricane is shown in the right panel. Variation in the shape of the hydrographs (right panel) is due to stream size, storm-surge, reservoir operations, and other local conditions, which can impact the effect of precipitation on flow. The the U.S. Geological Survey also collects additional information with Short-Term Network gages (these gages are not shown here).

Data Sources

Streamflow: U.S. Geological Survey National Water Information System. Time series of discharge at selected gages impacted by the storm are shown through time, ordered by latitude and normalized to site-specific maximum discharge observed over the duration of the hurricane.

Precipitation: National Weather Service Environmental Modeling Center National Center for Environmental Prediction Stage IV precipitation analysis, aggregated according to Blodgett (2013).

Storm Track: National Oceanic and Atmospheric Administration National Hurricane Center Preliminary Best Track for Hurricane Harvey.

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