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Category: VIIRS

“Billow cloud” formations near the Hawaiian Islands

The AWIPS images above (click to play animation) showed low-resolution GOES-15 10.7 µm IR data with an overlay of the surface analysis and pilot reports of turbulence. A number of reports of moderate turbulence could be seen in the vicinity of the Hawaiian Islands (at altitudes between 9,000 and 27,000... Read More

Motion of sea ice near Barrow, Alaska

AWIPS II images of 375-meter resolution Suomi NPP VIIRS 11.45 µm IR channel data (above; click image to play animation) revealed a surprising amount of sea ice motion in the vicinity of Barrow, Alaska (station identifier PABR) during the 30-hour period between 12:14 UTC on 24 January and 18:30 UTC... Read More

Bay-Effect Snow Showers over Virginia and North Carolina

The Arctic airmass that has overspread the eastern two-thirds of the United States is cold enough that sustained northerly winds down the length of Chesapeake Bay yielded snow showers over extreme southeastern Virginia and northeastern North Carolina. The Suomi/NPP Visible image, above, shows a distinct cloud band over the eastern... Read More