![](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/07\/220711_goes17_visible_infrared_Hurricane_Darby_eye_anim.gif\")
<\/a>GOES-17 \u201cRed\u201d Visible (0.64 \u00b5m, top) and “Clean” Infrared Window (10.35 \u00b5m, bottom) images [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>1-minute Mesoscale Domain Sector GOES-17 (GOES-West)<\/em> \u201cRed\u201d Visible (0.64 \u00b5m<\/strong><\/a>) and “Clean” Infrared Window (10.35 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> showed the evolution of the eye of Hurricane Darby<\/strong><\/a> as it moved westward across the East Pacific Ocean on 11 July 2022. Mesovortices were evident within the eye, along with a stadium effect<\/a><\/strong> eye structure — as Darby ended its period of rapid intensification and leveled off as a Category 4 storm (ADT<\/strong><\/a> | SATCON<\/strong><\/a>). Darby was moving through an environment of low wind shear<\/strong><\/a> and across relatively warm water (SST<\/strong><\/a> | OHC<\/strong><\/a>), factors which favored intensification.<\/p>\n A NOAA-20 VIIRS Infrared Window (11.45 \u00b5m) image from RealEarth<\/strong><\/a> (below)<\/strong><\/em> revealed an arc of slightly colder cloud tops (shades of white within dark black) in the northern portion of the eyewall.<\/p>\n NOAA-20 VIIRS Infrared Window (11.45 \u00b5m ) image at 2129 UTC [click to enlarge]<\/p><\/div>A NOAA-20 ATMS Microwave (183 GHz) image from the CIMSS Tropical Cyclones<\/strong><\/a> site (below)<\/strong><\/em> also showed the compact eye, along with a band of precipitation spiraling northward.<\/p>\n<\/a>