The highest peaks of the Big Island of Hawai’i are under Blizzard warnings as of early 3 December 2021, as shown in the screen capture below from the National Weather Service in Honolulu.The image above shows NUCAPS Sounding Availability in AWIPS over the central Pacific. A long swath of profiles was available from a... Read More

A useful strength of NUCAPS profiles over Alaska is that at that northern Latitude, sequential overpasses will overlap so that one location will be sampled sequential times. In the example above, note for example that portions of Canada’s Northwest Territories are sampled three times. Much of southern Alaska is sampled... Read More

Cold temperatures over the Great Lakes (the Green Bay 850-mb sounding temperatures, for example, were -11.9º C at 0000 UTC and -8.1º C at 1200 UTC) on 18-19 November 2021 generated extensive cloud cover and occasional snow showers. The nighttime microphysics RGB, above, showed extensive stratiform clouds downwind of Lake Michigan. The GOES-16 Cloud Top Phase product at this... Read More

Clear skies in the early morning of 10 November 2021 allowed mapping of lake surface temperatures (LSTs) over the Great Lakes using the Advanced Clear-Sky Processor for Oceans (ACSPO) algorithm with VIIRS data acquired at the direct broadcast site at CIMSS. Surface values over Lake Superior, for example, were in... Read More