A strong and persistent ridge of high pressure aloft (GOES water vapor image animation) along with a northward push of unusually warm air behind a poleward-moving frontal boundary (GOES... Read More

A relatively rare winter storm produced snowfall, sleet, and freezing rain (storm reports) across parts of far eastern Texas, central Louisiana, and southwestern Mississippi during the 23 January – 24 January 2014 time... Read More

Due to illumination by moonlight — the Moon was in the waning crescent phase, at 40% of full — a broad area of snow cover could be seen over parts of the High Plains and Foothills regions of the US on an AWIPS image of Suomi NPP VIIRS 0.7 µm... Read More

McIDAS images of 4-km resolution GOES-15 6.5 µm water vapor channel data (above; click images to play animation) showed the dramatic signature of rapid intensification of a very large mid-latitude cyclone over the eastern Pacific Ocean during the 20 January – 23 January 2014 time period.A comparison of AWIPS images... Read More