Sentinel-1A overflew the Samoan Islands shortly after sunset on 11 February and captured a packet of very strong winds just to the west of Tutuila Island of American Samoa. The toggle above compares Band 13 imagery with two different enhancements of the SAR Winds: one (here) highlighting the different Beaufort Scales,... Read More
JMA Himawari-9 Infrared Window (10.4 µm) images (above) showed Cyclone Freddy in the South Indian Ocean as it was rapidly intensifying from a Category 1 to a Category 3 storm by 12 UTC on 11 February 2023 (JTWC discussion), eventually presenting a ragged eye for several hours — then briefly reaching... Read More
A modest snow storm affected southern/central Wisconsin on 9 February (WFO ARX story), depositing 6-12″ of snow in a band from northeast Iowa to central Lake Michigan, as shown above: the snowfall caused an obvious change in the Suomi NPP imagery between 08 February and 10 February 2023, shown above using imagery taken from the... Read More
RADARSAT-2 passed over Samoan waters again on 9 February 2023, just after sunset (above) and near sunrise (at bottom). The imagery above compares the SAR winds to GOES-18 visible (with a changed enhancement to account for low light conditions, with reflectance values ranging from 0 to 6.3 only vs. the... Read More
