Hurricane Harvey 2017

Start Date

August 21, 2017

Overview

NASA’s Earth Science Disaster Response Team continues to work with interagency remote sensing specialists on the interpretation of NASA and partner-derived products designed to capture the extent of coastal surge and inland riverine flooding throughout the areas impacted by the landfall and torrential, record-setting rains of Hurricane Harvey. NASA and partnering scientists will work with state and federal agency partners to assess the usefulness of imagery and products, look for opportunities to improve the quality, interpretation, and use of products, and support scientific studies on processes related to tropical cyclones and hurricanes, especially for communities at high risk for complex impacts from these storms.

Latest Updates

August 31, 2017
Flood Proxy Map depicting areas of Southeastern Texas that are likely flooded as a result of Hurricane Harvey, shown by light blue pixels.
The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory in Pasadena, California, created this Flood Proxy Map depicting areas of Southeastern Texas that are likely flooded as a result of Hurricane Harvey, shown by light blue pixels. The map is derived from synthetic aperture radar amplitude images from the European Space Agency's (ESA) Sentinel-1 satellite, taken before (August 5, 2017) and after (August 29, 2017) Hurricane Harvey made landfall...
August 31, 2017
ISS Georeferenced Digital Camera Images from Houston Flooding 2017
Click here to view the full image collection and download  high quality georeferenced images. This collection of digital camera images was taken by astronauts onboard the International Space Station on August 31st, 2017, then manually georeferenced by members of the Earth Science and Remote Sensing Unit at NASA Johnson Space Center
September 1, 2017
Financial Loss Potential Index for Hurricane Harvey v3, dated 1 Sep 2017
This Financial Loss  Potential Index map combines extent of flooding and depth information and overlays it with exposed property values located in the flooded areas. The Financial Loss  Potential Index represents the concentration of high flood hazard and/or high value property locations at a grid level and can be used to validate loss estimates as well as review flood claims.  The data is posted at 500m grid cells. The property exposure...
September 1, 2017
SMAP-derived flood map of Texas from Hurricane Harvey
Video of SMAP-derived Flood Map of Texas from Hurricane Harvey 8/25/17 - 8/27/17 This animation depicts the flooded areas of Texas from August 25th – August 27th 2017 at 9km resolution and 3 hour intervals. The product shown is derived from SMAP data with a new algorithm developed by the post-flood crop damage assessment project (RF-CLASS system) funded the NASA Earth Science Disatsers Program. Please note this is an experimental product without full validation. 
September 1, 2017
Sea surface temperature map of Harvey acquired August 30th 2017
Acquired August 23rd 2017. Acquired August 30th 2017. Hurricane Harvey dropped unfathomable amounts of rainwater on Houston and southern Texas from August 25–30, 2017. The potent category 4 hurricane and long-lived tropical storm also churned up the Gulf of Mexico with its winds and storm surges, dispersing warm surface water and mixing up cooler water from the depths....
September 1, 2017
On August 31, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this image of the Texas coast and the Houston metropolitan area.
On August 31, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this image of the Texas coast and the Houston metropolitan area. Note the brown rivers and bays, full of flood water from Hurricane Harvey. Along the coast, muddy, sediment-laden waters from inland pour into a Gulf of Mexico that also was churned up by...
August 27, 2017
Flood extent map created by the ARIA team at NASA-JPL/Caltech, derived from the ALOS-2 ScanSAR data acquired 8/27/17 (~1:30PM Central Time) over Texas including Houston.
The above image is a screenshot of the flood extent map created by the ARIA team at NASA-JPL/Caltech, derived from the ALOS-2 ScanSAR data acquired on 8/27/17 (~1:30PM Central Time) over Texas including Houston. This Flood Proxy Map (FPM) covers an area of 350-by-350 km and is derived from Japan Aerospace Exploration Agency's (JAXA's) ALOS-2 PALSAR-2 pre- (2017-07-30) and post-event (2017-08-27) Synthetic Aperture Radar (SAR) amplitude images. The pixels in light...
August 30, 2017
Surface Flooding from Hurricane Harvey Shown in New SMAP Imagery
A new series of images generated with data from NASA's Soil Moisture Active Passive (SMAP) satellite illustrate the surface flooding caused by Hurricane Harvey from before its initial landfall through August 27, 2017. The SMAP observations detect the proportion of the ground covered by surface water within the satellite's field of view. The sequence of images depicts successive satellite orbital swath observations showing the surface water conditions on August 22, before Harvey's...
August 29, 2017
Astronaut Randy Bresnik took this photo of Tropical Storm Harvey from the International Space Station on Aug. 28 at 1:27 p.m. CDT.
NASA has a lot of resources providing information on Tropical Storm Harvey as it continues to drop tremendous, flooding rainfall on Texas and Louisiana. Satellites like NASA's Aqua satellite and platforms like aircraft and the International Space Station continue to provide various kinds of data on the storm. "NASA focuses on developing new research capabilities that can be used by our partners in the operational and response communities," said Dalia Kirschbaum, Research Physical Scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland. "While we continue to innovate in the...
August 29, 2017
Flood estimates from GFMS using IMERG input show evolution of flooding over 8/26-8/29, with expansion from Houston area to southeastern Texas and Louisiana.
Flood estimates from GFMS using IMERG input show evolution of flooding over the last few days, with expansion from Houston area to southeastern Texas and Louisiana.    Satellite-based rainfall (GPM IMERG) from now Tropical Storm Harvey over the last three days compares fairly well with raingauges, except for peak values.  IMERG has peaks of about...
August 25, 2017
GPM image of hurricane Harvey on Aug 25 2017
NASA’s Short-term Prediction Research and Transition (SPoRT) Center collaborated with the Naval Research Laboratory to integrate false color composites of passive microwave brightness temperatures that are helpful for identifying the center of circulation of storms like Hurricane Harvey, especially when thick cloud cover may otherwise obscure the center of the circulation.  A false color composite is generated using 89 GHz brightness temperatures from the Global Precipitation...
August 25, 2017
GPM precipitation radar data from Hurricane Harvey on 8/25/17.
Hurricane Harvey's has continued to intensify today as it moves toward the Texas coast. Bands of rain from the hurricane were affecting the Gulf coast from Louisiana to southeastern Texas. The Global Precipitation Measurement (GPM) mission core observatory satellite had another look at hurricane Harvey on August 25, at...
August 28, 2017
GPM IMERG precipitation totals for Hurricane Harvey from August 21st - August 27th 2017.
Despite its earlier demise, after rejuvinating over the warm waters of the Gulf of Mexico, Hurricane Harvey has become a major weather maker as it unleashes historical flooding over parts of coastal Texas. Harvey began on the 17th of August as a weak tropical storm about 250 miles (~400 km) east of Barbados in the Leeward Islands. Over the next two days, Harvey continued moving steadily westward passing through the Leeward Islands as a still weak tropical storm and entered into the east central Caribbean. On the 19th, Harvey succumbed to the effects of northeasterly wind shear over the...