12 February 1999 -- GOES-8 shortwave IR animation (Java applet)

12 February 1999 -- GOES-8 3.9 Micron Shortwave IR
Convective Snow Squalls Over the Midwest

(this 15-image Java animation sequence will take a minute or two to load...)

This loop of GOES-8 3.9 micron shortwave IR imagery shows convective snow squalls that developed over parts of Iowa, Illinois, and Wisconsin on 12 February 1999. Cloud tops over the region were a mixture of supercooled water droplets (dark gray enhancement, due to solar reflection) and ice crystals (warmer than -10 C, light gray enhancement; -10 C and colder, blue enhancement). Surface reports of weather are also plotted on the imagery.

(a similar loop with full hourly surface reports is available here)

Back to the 12 February 1999 Convective Snow Squall page

12 February 1999 -- GOES-8 3.9 Micron Shortwave IR Convective Snow Squalls Over the Midwest

12 February 1999 -- GOES-8 3.9 Micron Shortwave IR
Convective Snow Squalls Over the Midwest