Most people in south-central Wisconsin have noticed how uncomfortable the weather has been over the past week. The unseasonably cool air from a week ago has been replaced with a hot, sticky airmass that feels more at home in late July than in early June. And while precipitation has been... Read More
April showers developed over the upper Midwest on the afternoon of 24 April 2021. The toggle above shows atmospheric lapse rates (as derived from NUCAPS Sounding observations) at 1818 UTC in 3 different layers: 925-850 mb, 900-700 mb, and 850-500 mb. A very tight gradient in low-level lapse rates exists southwest-to-northeast over Wisconsin. ... Read More
Himawari-8 Window Channel infrared imagery (10.41 µm), above, shows a well-defined tropical disturbance (Tropical Depression #2 has become become Tropical Storm Surigae by 0900 UTC on 14 April; this website shows Pacific basin names and includes audio pronunciation examples) moving between Yap and Palau in the western Pacific to the southwest... Read More
The animation above shows Himawari full-disk imagery from 2300 UTC on 1 April through 1140 UTC on 2 April and depicts a cluster of thunderstorms over the Pacific Ocean far to the northeast of Guam. A particular challenge in diagnosing atmospheric events over the open Pacific is the lack of... Read More
