5-minute GOES-16 {GOES-East) True Color RGB images created using Geo2Grid (below) showed widespread blowing dust (shades of tan) and wildfire smoke plumes (brighter shades of white) across much of the central/southern Plains on 12 April 2022. Wind speeds were anomalously strong behind a dryline within the warm sector of an anomalously-deep surface low, which... Read More

April 11 2022 saw the first measurable snowfall ever in April at the Portland OR airport (WFO Portland Tweet), where records have been kept since 1940. The GOES-16 animation above shows the weather system responsible for the weather.NOAA-20 overflew the west coast shortly after 1000 UTC (map of the orbit, from this website), and NUCAPS profiles... Read More

A 50- to 60-vehicle crash over central Schuylkill County (in Pennsylvania), with fatalities, on north-bound Interstate 81 occurred at around 11 AM EDT (TV news report; radio report), which is 1500 UTC. Day Cloud Phase Distinction, above shows the characteristic yellow/green/chartreuse shading that is associated with snow in cold air moving over I-81... Read More

The Storm Prediction Center issued a Mesoscale Discussion (#337 for 2022) at 1918 UTC on 25 March 2022 for southern Wisconsin/northern Illinois discussing the possibility of convective snow showers late in the day on 25 March 2022. The toggle above shows gridded NUCAPS values of 500-mb Temperature over the upper midwest in a toggle... Read More