The Solar Ultraviolet Imager (SUVI) on GOES satellites revealed an equatorial coronal hole directed towards Earth on the 11th and 12th of December. Coronal holes appear as dark areas in the extreme ultraviolet, or the 195 Angstroms band on SUVI. They appear dark because they are cooler and less dense regions... Read More
10-minute interval GOES-16 (GOES-East) True Color RGB images (source) from 0930-1900 UTC on 13-26 November 2023 (above) showed Iceberg A23a just east-northeast of Joinville Island (at the tip of the Antarctic Peninsula). Although cloud-free periods were scarce during those 14 days, even on most of the cloudy days the silhouette... Read More
Hurricane Otis explosively developed yesterday and made landfall near midnight on 25 October. The image below shows Day Night Band visible imagery from NOAA-20 at 0752 UTC, shortly after the storm made landfall near Acapulco, Mexico as a Category 5 storm. A clear eye is not apparent, and no lightning... Read More
1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Clean” Infrared Window (10.3 µm) images (above) showed Hurricane Otis as it approached the coast of Mexico, making landfall near Acapulco (Acapulco International Airport, METAR identifier MMAA, is located about 16 miles southeast of the city center) around 0625 UTC on 25 October 2023. During the 11-hour time period shown,... Read More
