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Category: Winter weather

Blowing snow across the North Slope of Alaska

A sequence of Suomi-NPP VIIRS Visible (0.64 µm) and Shortwave Infrared (3.74 µm) images (above) revealed a long east-to-west oriented swath of horizontal convective roll (HCR) clouds associated with blowing snow and blizzard conditions across parts of the North Slope of Alaska on 15 April 2022. The plume of supercooled... Read More

Blowing dust, wildfires and severe weather in the southern Plains — with blizzard conditions in the northern Plains

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

GOES-16 views of snow squalls associated with a multi-vehicle fatal crash in Schuylkill County, Pennsylvania

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