Tracking Hurricane Harvey with Satellites

Caitlin Dempsey

Updated:

Multiple satellites are tracking Hurricane Harvey as it nears the Texas coast.  The hurricane is expected to make landfall late Friday night or early Saturday morning as a category 3 hurricane.  35 inches of rain and devastating flooding are predicted for this area of the Texas coast around Corpus Christi.

Several satellites have been tracking and measuring the intensity of this extreme weather pattern.  These satellites are tracking the storm’s rainfall, cloud heights, and cloud top temperatures as Harvey approaches the coast of Texas.

NASA/NOAA’s GOES-East weather satellite has been tracking the path of the storm.  At 10:07 a.m. EDT (1407 UTC) on August 25, 2017, the satellite captured this view of Hurricane Harvey as it nears the southeastern coast of Texas.

View of Hurricane Harvey as it nears the southeastern coast of Texas. Source: NASA/NOAA GOES Project
View of Hurricane Harvey taken on August 25, 2017 as it nears the southeastern coast of Texas. Source: NASA/NOAA GOES Project

On August 24, 2017 at 6:30 p.m. EDT (2230 UTC), the Core Observatory satellite from the Global Precipitation Mission (GPM) passed over the storm to capture rainfall per hour measurements.  Intense rainfall bands near the center of the hurricane were measured using the satellite’s Microwave Imager (GMI) instrument.  Using that data the Goddard Profiling Algorithm (GPROF) determined that storms within the hurricane were dropping rain at a rate of over 2.1 inches (54 mm) per hour.

Measurement of rainfall rates from the Core Observatory satellite from the Global Precipitation Mission (GPM) on August 24, 2017. Image: NASA /JAXA, Hal Pierce
Measurement of rainfall rates from the Core Observatory satellite from the Global Precipitation Mission (GPM) on August 24, 2017. Image: NASA /JAXA, Hal Pierce

The European Space Agency’s Copernicus Sentinel-3A satellite captured temperature measurements of Hurricane Harvey on August 25, 2017 at 04:06 GMT.  This image shows the temperature measurements at the top of the storm which ranges from about –80°C near the eye of the storm to about 20°C at the edges.

Temperature measurements from modified Copernicus Sentinel data (2017), processed by ESA
Temperature measurements from modified Copernicus Sentinel data (2017), processed by ESA.

Tracking Hurricane Harvey Video

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About the author
Caitlin Dempsey
Caitlin Dempsey is the editor of Geography Realm and holds a master's degree in Geography from UCLA as well as a Master of Library and Information Science (MLIS) from SJSU.