MODIS imagery from the Terra satellite clearly show the change in snowcover over the upper Midwest in the past week. The first image, from 6 March, shows widespread snowcover. The second image, from 15 March, shows widespread bare ground. The period from 9 March through 13 March was one of... Read More
After an unusually quiet February tornado-wise in the United States (only one tornado was reported, an EF-0 in California that lasted for 3 minutes late in the day on February 27th), two tornadoes touched down near sunset in western Oklahoma, near the town of Hammon. The above animation from NAWIPS shows 1-km GOES-12 visible imagery with superimposed contours of cloud-top cooling (and lightning strikes) from about 2000 UTC on 9 March to 0015... Read More
GOES-11 (GOES-West) visible channel images (above) displayed an unusually large area of open-cell cumulus clouds across the North Pacific Ocean on 20 January 2010. This type of open-cell mesoscale convective cloud pattern is a signature of strong instability (via boundary layer cold air advection over relatively warmer waters) in an environment of... Read More
Shortly after midnight (EST) on December 1st, GOES-10 was decomissioned and boosted to a disposal orbit (approximately 300 km above the operational orbit). It was shut off because it lacks fuel for the required maneuvers to keep it on station.GOES-K was launched 25 April 1997, with a life expectancy of... Read More
