A favorable orbit geometry on NOAA-20 on 17 June 2021 meant that portions of the upper Midwest received NUCAPS soundings 90 minutes apart. This is an ideal way to monitor destabilization on a day when SPC has predicted an enhanced risk of severe weather, as shown below and at this link.Compare... Read More
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
