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

A shallow bank of fog and stratus cloud was moving southward along the Delaware/Maryland/Virginia coast during the pre-dawn and early morning hours on 03 April 2007. GOES-12 3.9µm InfraRed (IR) imagery (above; Read More

An IDEA MODIS Aerosol Optical Depth (AOD) image (above) depicted elevated AOD values of 0.6 to 0.8 over parts of the Southeast US (especially the northern half of Georgia) on 29 March 2007. Smoke from Read More

A major outbreak of severe convection developed across the southern and central Plains states during the day on 28 March and 29 March 2007; large and long-lived thunderstorms produced widespread tornadoes (including fatal tornadoes in Texas and Oklahoma, and the first tornado-related fatality in Colorado since 1960), large hail (up to 4.5 inches... Read More