A modest snow storm affected southern/central Wisconsin on 9 February (WFO ARX story), depositing 6-12″ of snow in a band from northeast Iowa to central Lake Michigan, as shown above: the snowfall caused an obvious change in the Suomi NPP imagery between 08 February and 10 February 2023, shown above using imagery taken from the... Read More
Predominantly clear skies and a waning Full Moon (the Full Moon was on 5 February) allowed for both Day Night Band imagery of the surface and Advanced Clear-Sky Processing for Ocean (ACSPO) sea-surface temperature (SST) fields using VIIRS data downloaded at the CIMSS Direct Broadcast antenna (and processed using CSPP... Read More
Daynight band imagery from the CIMSS Direct Broadcast antenna (processed by CSPP software) early on 6 February 2023 showed a curious region of darker reflectance over western Hudson Bay (VIIRS imagery is available from this temporary file; microwave imagery from ATMS at the same time is available from this temporary file). The toggle below, between the VIIRS I04 (3.74 µm) brightness temperature... Read More
According to NOAA’s Great Lakes Surface Environmental Analysis (GLSEA) the Great Lakes were 11.6% ice covered on February 2nd when an arctic air mass was descending southward over the region. The cold air boosted ice coverage to 14.7% on February 3rd, less than half of the average extent (1973-2022)... Read More
