The Synthetic Aperture Radar instrument on RADARSAT Constellation Mission-2 (RCM-2) satellite sampled the winds over the western half of Cyclone Judy at 0700 UTC on 2 March 2023, as shown in the toggle above that also includes the GOES-18 Band 13 Clean Window infrared (10.3 µm) imagery. Peak winds are 41 m/s in the southern eyewall, and strongest winds are in general in the southern part... Read More
JMA Himawari-9 Infrared Window (10.4 µm) images of Tropical Cyclone Judy in the South Pacific Ocean on 27 February 2023 (above) displayed some unusually cold cloud-top infrared brightness temperatures — with isolated vales of -100ºC and colder (red pixels embedded within interior darker black regions).The Central Cold Cover feature was... Read More
Sentinel-1A overflew the Hawai’ian islands twice, once on 26 February and again on 27 February. The animation above shows the AWIPS presentation of SAR winds at 1616 UTC on 26 February. Images from the NOAA/STAR website for those two footprints are shown below as toggles between the derived wind speed and the... Read More
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
