The third named storm of the Eastern Pacific tropical season has formed. (Click here for NHC‘s public advisory on the naming of Calvin) The mp4 animation above (click here for an animated gif) shows the evolution of the system for the 24 hours ending at 1210 UTC on 12 July... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.3 µm) images (above) showed Category 1 Hurricane Beatriz just off the west coast of Mexico (near Ixtapa, station identifier MMZH) as a cloud-filled eye was becoming more apparent.A DMSP-17 Microwave (85 GHz) image at 1322 UTC (below) from the CIMSS Tropical Cyclones site indicated... Read More

RCM1 overflew Hurricane Adrian (the 2nd latest-forming first tropical system of the eastern Pacific since the start of the satellite record) at 1300 UTC on 29 June 2023, as shown above. SAR winds derived from satellite data show a closed ring of 35- to 40-knot winds surrounding the eye. Adrian’s center at 15.9oN, 110oW in the 1300 UTC... Read More

Orbits from NOAA-20 (link, from this site) show a NOAA-20 overpass over Tropical Storm Bret at around 1700 UTC on 21 June 2023. Data from NOAA-20 were available at this site by 1730 UTC, and downloading files from the VIIRS-I1-SDR and VIIRS-IMG-GEO directories (as discussed in this blog post), and running a simple Polar2Grid (software... Read More