One of the first strong Mesoscale Convective Systems of the Spring Season traversed the Gulf of Mexico during the day on April 3rd. Suomi/NPP VIIRS imagery of the 0.7 µm Day/Night Band and the 11.45 µm IR channel, from 0722 UTC, above, showed elements that are characteristic of these convective features. For example, the thick convective... Read More
Signatures of extensive drilling activity in the Bakken oil shale formation region (primarily in northwestern North Dakota and far eastern Montana) could be seen in AWIPS images of 1-km resolution Suomi NPP VIIRS 0.7 µm Day/Night Band (DNB), 3.74 µm shortwave IR, and IR brightness temperature difference “fog/stratus product” data... Read More
The Area Forecast Discussion issued by the National Weather Service forecast office in Fairbanks mentioned the presence of a layer of fog and stratus over parts of the North Slope region of Alaska:NORTHERN ALASKA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FAIRBANKS AK 1258 PM AKDT MON MAR 11 2013 NORTH SLOPE…THE... Read More
AWIPS images of MODIS 0.64 µm visible channel and 6.7 µm water vapor channel images with an overlay of CRAS model 500 hPa geopotential height contours (above) showed an upper-level trough of low pressure that was moving inland across southern California and Arizona on Read More
