A lee-side frontal gravity wave was seen on GOES-12 6.5µm “water vapor” imagery (above; Java animation) — this feature was associated with a cold frontal boundary that was... Read More

An animation of 3-hourly water vapor channel image composites from AWIPS during the entire month of March 2007 (41 MB QuickTime animation; 1280×1024 screen resolution required) shows the diverse variety of synoptic scale features that affected the Northern Hemisphere during that... Read More

GOES-11 (GOES-West) Visible (daytime) and 3.9 µm Shortwave Infrared (nighttime) imagery (above) revealed an interesting cyclonic vortex which was propagating westward across the eastern North Pacific Ocean on 13-14 March 2007. The radial banded cloud features that form such a cloud “swirl” are known as actinae or Read More

An extensive deck of stratus cloud was evident across much of northern Minnesota and adjacent portions of the Dakotas and Wisconsin during the daytime hours on 08 March 2007. An AWIPS 4-panel display of MODIS imagery (above) shows how different this cloud feature appeared in the various channels. The stratus... Read More