MODIS visible + snow/ice images AWIPS images of the MODIS visible channel and the 2.1 µm near-IR “snow/ice discrimination” channel (above) showed the areal coverage of surface snowfall and ice accrual across much of the southern Plains on 28 January 2009. Many... Read More

GOES-13 visible channel images (above) displayed a beautiful example of ducted internal gravity wave clouds over parts of Iowa, Wisconsin, Illinois, and Michigan during the daylight hours on 27 January 2009. The main linear “wave train” feature became obscured by a veil... Read More

Much of the central and southern Florida peninsula experienced temperatures at or below freezing on the morning of 22 January 2009. Surface air temperatures were as cold as 15º F at Archbold in the... Read More

A comparison of GOES-12 and GOES-13 visible images (above) showed a long lake-effect cloud band that was oriented generally north-to-south across Lake Michigan on 20 January 2009. Convergence of surface winds was helping to sustain the cloud band over the lake, which... Read More