The hurricane’s eye made landfall in Rockport, Texas, and this before and after Landsat image clearly shows shoreline retreat on barrier islands caused by Harvey’s storm surge. ![]() The Landsat 8 image from August 12 shows the area before the storm hit while Landsat 7 passed over the same area on September 5 to show the flooded Brazos River. A USGS streamgage on the Brazos near Rosharon showed that a river level normally at around 10 feet peaked to 52.65 feet, almost 10 feet above flood stage, on August 29.Įven with scattered clouds in the images, the extent of flooding on the landscape just south of Houston is evident. Harvey’s deluge set a number of records in Texas streams and rivers during the peak period of flooding with 40 streamgages measuring record highs and more than 80 streamgages recording water levels at or above flood stage – the point at which water can start overflowing banks – on 21 rivers, streams and bayous, with preliminary reports showing some rivers have already crested reaching their highest levels.Īmong the many waterways in southeastern Texas that exceeded flood stage was the Brazos River, which flows west of Houston into the Gulf of Mexico. ![]() Geological Survey has released new Landsat satellite images that show some of the flooding and coastal change Hurricane Harvey’s historic rains and storm surge produced across much of eastern Texas.
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