An intriguing fog event took place over Lake Superior on Sunday, 15 February. On a day that was otherwise clear and unseasonably warm, fog crept westward as though it was trying to cover the entire lake. The following animation shows the entire day of GOES-19 true color imagery as viewed... Read More
A recent question from the Weather Service Office in Pago Pago, Amercian Samoa, brought up the issue of parallax. GOES-18 is located at a longitude of 137 degrees west, while American Samoa is at 170 degrees west. This means there’s around 33 degrees of longitude between the two. By comparison,... Read More
A deepening circulation north of Palau in the western Pacific is projected to intensify into a tropical storm between 3 and 4 February 2026. This system is currently (as of 1600 UTC on 3 Feb 2026) labeled as Invest 94W, but analysis from the Joint Typhoon Warning Center projects intensification into a tropical... Read More
5-minute CONUS Sector GOES-19 (GOES-East) Water Vapor and Infrared images (above) showed the development of a standing wave cloud over northeast Minnesota and Lake Superior on 19 January 2026. This cloud feature was formed by a vertically-propagating internal gravity wave that resulted from the interaction of post-frontal northwesterly surface winds with the... Read More
