Hurricane Harvey continues to shake toward a Texas coast, and is approaching to make landfall as a vital whirly someday late Aug. 25 or early Aug. 26, according to the National Hurricane Center. It would be a initial vital whirly to make landfall in a United States given 2005.
The fast intensification of Harvey is decorated in this set of false-color images from NASA’s Atmospheric Infrared Sounder (AIRS) and Advanced Microwave Sounding Unit (AMSU) instruments on NASA’s Aqua satellite. The progressing images were acquired during 3:05 p.m. CDT (19:05 UTC) on Wednesday, Aug. 23, when Harvey became a pleasant charge shortly after channel from a Yucatan Peninsula over comfortable waters in a Gulf of Mexico. The after images were acquired during 2:59 a.m. CDT (7:59 UTC) on Friday, Aug. 25, when Harvey was a Category 2 hurricane.
Warm colors in a infrared images (red, orange, yellow) uncover areas with small cloud cover. Cold colors (blue, purple) uncover areas lonesome by clouds that have grown amply to strech high, cold altitudes, formulating clever thunderstorms. The darker a color, a colder and aloft a clouds and a stronger a thunderstorms. In a x-ray images, blue indicates areas of complicated rainfall underneath a coldest clouds.
These images illustrate how, over a 36-hour period, Harvey became some-more orderly (shown by a some-more round figure and more-developed sleet bands in a after images), strong (shown by a flourishing area of blue and purple colors in a infrared) and changed northwest toward Texas. The x-ray images uncover how a areas with sleet have grown in area and intensity.
Together, these dual instruments give a minute design of a windy conditions in and around a charge like Harvey. These observations are used by continue forecasters to envision how Harvey will pierce and change strength.
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