GOES-12 visible channel images (above; Java animation) revealed an undular bore that was propagating southeastward across the Gulf Coast region of the US on 11 April 2007. This feature was... Read More

MODIS true color imagery (above) revealed a wide swath of fresh snow cover across much of the northcentral US on 04 April 2007. Snowfall during the 03-04 April period included 9 inches in North Dakota, 11 inches in South Dakota, 13 inches... Read More

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