1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Red” Visible (0.64 µm) images (above) showed the development of thunderstorms across much of the eastern portion of Interior Alaska on 24 July 2023. The large satellite viewing angle — which is 73.5 degrees for Fairbanks (station identifier PAFA) — provided an oblique perspective that nicely displayed the vertical buildup... Read More

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed a supercell thunderstorm that produced a tornado, hail as large as 5.00 inches in diameter and wind gusts to 100 mph (SPC Storm Reports | NWS Aberdeen summary) in central South Dakota during the late afternoon and early evening hours on 18 July 2023. Several pulses of overshooting tops... Read More

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) Nighttime Microphysics RGB images (above) included plots of Local Storm Reports — which showed a thunderstorm that produced wind-driven hail as it moved across northeastern Wyoming during the late afternoon and evening hours on 11 July 2023. Note the long, narrow swath of colder surface temperature (shades of beige) in the... Read More

GOES-16 Visible (Band 2, 0.64 µm) and Infrared (Band 13, 10.3 µm) imagery at 2316 UTC on 9 July 2023, above, show cloud-top features commonly associated with intense convection off the east coast of Florida, to the southeast of Cape Canaveral. RADARSAT-2 overflew this region at the same time, and... Read More