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Archive: Sep 2012

Remnant from Isaac emerges into northern Gulf of Mexico

A thunderstorm complex over the northern Gulf of Mexico on the morning of September 5th is being monitored for tropical development. This cluster originated as a mesoscale convective system that emerged from the southern edge of Isaac’s decaying circulation, as shown in the animation above. The animation, starting from Isaac’s... Read More

River valley fog features on VIIRS Day/Night Band imagery

An AWIPS image of Suomi NPP VIIRS 0.8 µm Day/Night Band data with overlays of surface observations (above) revealed the “dendritic fingers” signature of river valley fog across parts of southwestern Wisconsin and the adjacent Mississippi River Valley region at 08:17 UTC (3:17 AM local time) on 04 September 2012.... Read More