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
A 250-meter resolution Terra MODIS true-color Red/Green/Blue (RGB) image from the SSEC MODIS Today site (above) revealed the widespread orange hue of Autumn tree colors over parts of northeastern Minnesota, northern Wisconsin, and the western Upper Peninsula of Michigan on 11 October 2015.A comparison with the corresponding MODIS false-color RGB image (below)... Read More
Joaquin reached Category 1 hurricane intensity on the morning of 30 September 2015 (NHC advisories). An eye structure was becoming apparent on a 1259 UTC Microwave (85 GHz) image from the SSMIS instrument on the DMSP-18 satellite (above).The GOES-13 (GOES-East) satellite was placed into Rapid Scan Operations (RSO) mode, providing images... Read More
The Chinook Arch (a stationary cloud formation downwind of the Rockies) should move E and diminsh this aftn. #mtwx pic.twitter.com/UdfRRjOnBF — NWS Great Falls (@NWSGreatFalls) September 20, 2015 As pointed out in a Tweet from NWS Great Falls (above), a “chinook arch” mountain wave cloud feature had formed in response to strong westerly... Read More
