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Archive: Oct 2015

Typhoon Champi

Himawari-8 viewed Typhoon Champi in the North Pacific on 22 October 2015, as shown above. The storm was near peak intensity during this animation, as indicated by the graphs of satellite maximum wind speed and minimum surface pressure shown below (taken from this website). The eye (abnormally large for a Typhoon!)... Read More

Hurricane Olaf

A plot of the Advanced Dvorak Technique (ADT) intensity estimate for Hurricane Olaf (above) showed that the storm went through a period of rapid intensification during the 19-20 October 2015 period, reaching Category 4 strength. The National Hurricane Center noted that Olaf became the 6th major hurricane in the eastern North Pacific during... Read More

Typhoon Koppu hits the Philippines

Typhoon Koppu hit the northern Philippines island of Luzon on Saturday 18 October. The 4-panel mp4 animation above (Click here for an animated gif) shows the 3 water vapor infrared channels (6.2 µm, 6.9 µm and 7.3 µm) and the window infrared channel (10.35 µm) from the Himawari-8 satellite. There... Read More

40 Years of GOES Imagery

On October 16, 1975, GOES-A was launched from Cape Canaveral in Florida (NESDIS Link). After achieving orbit, it was renamed GOES-1 and it broadcast its first image on October 25 of that year. The animation (mp4) above is from January 1983, when GOES-1 was operating as GOES-West. GOES-1 was in... Read More