National Aeronautics and Space Administration

Animations of GEOS-5 forecasts for 850 hPa (color and mph, bottom animation) starting on September 1, 2012 and ending on November 2, 2012. Seen are GEOS-5 representations of tropical cyclones Leslie, Michael, Nadine, Oscar, Patty, Rafael, and Sandy. Forecast resolution changes from a quarter degree to seven kilometers at 0900 UTC on October 26. Read More.