AWIPS II images of 375-meter resolution Suomi NPP VIIRS 0.64 µm visible channel data (above) showed the growth of new ice immediately offshore in the northwestern portion of Hudson Bay, Canada during the 17 November – Read More

Hat tip to NWS Buffalo NY forecasters Jon Hitchcock and David Zaff for letting us know about a number of aircraft dissipation trails (also known as “distrails” or “hole punch clouds”) over the Lake Ontario region on 04 November... Read More

A strong upper-level ridge of high pressure coupled with a moist, stagnant boundary layer led to the formation of widespread areas of fog for several days across much of the interior lowlands of western British Columbia and Washington State, along with valley fog in the Rocky Mountains farther to the... Read More

An unusually intense (by early October standards) mid-latitude cyclone produced a variety of weather extremes across the parts of the north-central US during the 04 October to 05 October 2013 period. In the cold sector of... Read More