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<\/a>GOES-16 Mid-Level Water Vapor (6.9 \u00b5m) and Air Mass RGB images [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>GOES-16 (GOES-East)<\/em> Mid-Level Water Vapor (6.9 \u00b5m<\/strong><\/a>) and Air Mass<\/strong><\/a> RGB images (above)<\/strong><\/em> covered the period 0600-1800 UTC on 03 November 2022 — during which Category 1 Hurricane Martin<\/strong><\/a> transitioned to an extratropical cyclone over the North Atlantic Ocean (surface analyses<\/strong><\/a>). West of Martin, the large area of orange-to-red hues on the Air Mass RGB images highlighted an anomalously-deep<\/strong><\/a> mid-tropospheric trough that was moving eastward (also shown by UKMET model 500 hPa height contours) — which began to phase with and absorb the mid-tropospheric circulation of Martin as the extratropical transition completed.<\/p>\n DMSP-17 SSMIS Microwave (85 GHz) imagery at 1005 UTC (below)<\/strong><\/em> — from the CIMSS Tropical Cyclones<\/strong><\/a> site — indicated that a closed eyewall was not present with Martin at that time.<\/p>\n DMSP-17 SSMIS Microwave (85 GHz) image at 1005 UTC [click to enlarge]<\/p><\/div>VIIRS True Color RGB and Infrared Window (11.45 \u00b5m) images from Suomi-NPP (at 1447 UTC) and NOAA-20 (at 1537 UTC) viewed using RealEarth<\/strong><\/a> (below)<\/strong><\/em> showed Martin around the time that extratropical transition was nearly complete.<\/p>\n VIIRS True Color RGB and Infrared Window (11.45 \u00b5m) images from Suomi-NPP (at 1447 UTC) and NOAA-20 (at 1537 UTC) [clic to enlarge]<\/p><\/div>GOES-16 Nighttime Microphysics RGB and daytime True Color RGB images from the CSPP GeoSphere<\/strong><\/a> site (below)<\/strong><\/em> displayed the center of Martin moving rapidly north-northeastward (at speeds of 40-50 knots) during the day.<\/p>\n<\/a><\/a>