After making landfall in the Northern Mariana Islands on 24 October, Super Typhoon Yutu underwent eyewall replacement cycles that brought about a drop to Category 4 intensity on 25 October. However, during the day on 26 October 2018 the storm again re-intensified to Category 5 (ADT | SATCON). Himawari-8 “Clean” Infrared Window (10.4... Read More
GOES-16 (GOES-East) Low-level (7.3 µm), Mid-level (6.9 µm) and Upper-level (6.2 µm) Water Vapor images (above) revealed 2 types of terrain-induced features — mountain waves, and a banner cloud (reference 1| | reference 2) — across the Northeast US on 25 October 2018.The mountain waves were more widespread and long-lasting, while the banner cloud formed to the... Read More
Himawari-8 Clean Window Infrared (10.41 µm) imagery shows Super Typhoon Yutu poised to hit Tinian and Saipan in the Marianas Islands, to the northeast of Guam. The 0900 UTC Advisory from the Joint Typhoon Warning Center shows a storm with sustained winds of 145 knots, with strengthening forecast. JMA estimates... Read More
Rapid-scan (2.5-minute interval) Himawari-8 “Clean” Infrared Window (10.4 µm) images (above) showed the formation of a well-defined eye as Typhoon Yutu rapidly intensified from a Category 2 to a Category 4 storm (ADT | SATCON) east of Guam on 23 October 2018. Cloud-top infrared brightness temperatures were -90ºC or colder... Read More
