We received an email from Ron Miller at the National Weather Service forecast office at Spokane, Washington asking if there was any good MODIS imagery of the major dust storm that they had in their area on 03 May 2010. There most certainly was: the 250-meter resolution Terra MODIS (19:39 UTC or 12:39... Read More

McIDAS images of the GOES-13 0.65 µm visible channel data (above) showed the development of a well-defined plume of blowing dust/sand that appeared to originate from the White Sands, New Mexico area on 29 April 2010 — this plume of airborne aerosols very... Read More

Eyjafjallajokull, a now-active volcano in southern Iceland that erupted in late March, has recently erupted again, ejecting significant volcanic ash into the atmosphere. Iceland is at high enough latitudes (between 63 and 66.5 degrees north Latitude) that views from geostationary satellites are not as helpful in diagnosing evolving events such as ash clouds as... Read More

McIDAS images of the GOES-12 0.65 µm visible channel data (above) showed the development of large plumes of blowing dust that developed late in the day on 05 April 2010 as a result of very strong winds ahead of an advancing cold frontal boundary. Winds gusted as high as 70 mph in northeastern Arizona and 68 mph in... Read More