McIDAS images of GOES-13 and GOES-15 10.7 µm IR images (above) showed the development of severe thunderstorms that produced very large hail, tornadoes, and damaging surface winds (SPC storm reports) in central South Dakota on Read More

On 20 July 2010, United Airlines Flight 967 en route from Washington Dulles to Los Angeles encountered severe turbulence over the central US, and had to divert and land at Denver to medically treat nearly 30 passengers who suffered significant injuries. The flight track diversion is shown above (courtesy of FlightAware.com).AWIPS images... Read More

There were three items of interest to discuss that exhibited interesting satellite signatures on 13 July 2010. The first feature was a middle-tropospheric vortex that was spinning off the coast of California, as seen on AWIPS images of 8-km resolution GOES-11 6.7... Read More

A stagnant area of high pressure situated over the Northeast and Mid-Atlantic states contributed to a prolonged heatwave over that part of the US, with widespread temperatures over 100º F (38º C) for several days — including 106º F (41º C) at Williamsburg, Virginia and Frederick, Maryland on 06 July 2010. McIDAS images of GOES-13 0.63 µm... Read More