1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Clean” Infrared Window (10.35 µm) images (above) include time-matched SPC Storm Reports plotted in cyan — and showed several tornadoes and hail up to 4.50 inches in diameter across Arkansas early in the evening on 11 April 2022. One of the larger tornadoes prompted the issuance of... 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 fire at the Costa Sur power generation station in southwestern Puerto Rico shortly after 0100 UTC on 7 April caused wide-spread (but short-lived) power outages over the island. Imagery above shows the Day Night Band visible imagery (0.70 µm) from Suomi NPP, and a marked decrease in luminosity is... Read More
1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm) images (above) showed a hazy plume of resuspended volcanic ash — from the 1912 eruption of Novarupta-Katmai — moving southeastward then eastward across the Shelikof Strait toward Kodiak Island in southern Alaska on 08 April 2022.The corresponding 1-minute GOES-17 Dust RGB images (below) displayed faint hues of... Read More
