An anomalously-strong 250 hPa jet streak (analysis) was moving across the Upper Midwest late in the day on 27 December 2021. The 205 knots at Chanhassen Minnesota was a 250 hPa record maximum speed for all 00 UTC rawinsondes on 28 December at that site, as was the 207 knots at Green... Read More
GOES-6GOES-6 was NOAA‘s operational satellite during the 1983 Hurricane Raymond, which was a Cat 4. This incredibly powerful storm was made famous in the 1998 book “Red Sky in Mourning: A True Story of Love, Loss, and Survival at Sea” written by Tami Oldham Ashcraft with Susea McGearhart, and also by the... Read More
The Caldor Fire (east of Sacramento, California) exhibited unprecedented growth on 17 August 2021 — increasing from 3600 acres burned in the morning to 30,000 acres that evening, with 0% containment — and Shortwave Infrared (3.9 µm) images from 1-minute GOES-17, 15 to 30-minute GOES-15, 15 to 30-minute GOES-14 and 5-minute GOES-16 (above)... Read More
1–minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.35 µm) images (above) showed Tropical Storm Fred during the 8-hour period leading up to it making landfall along the panhandle of Florida around 1915 UTC on 16 August 2021. Multiple convective bursts developed near the storm center, with some exhibiting cloud-top infrared brightness temperatures of -80ºC or colder (violet pixels).... Read More
