Freezing fog across the Pacific Northwest

December 10th, 2011 |
MODIS fog/stratus product + METAR surface reports

MODIS fog/stratus product + METAR surface reports

AWIPS images of the 1-km resolution MODIS fog/stratus product (above) showed areas of freezing fog that were persisting across parts of the Pacific Northwest region of the US during the pre-dawn hours on 10 December 2011. This freezing fog was causing a few traffic accidents on roadways across the region.

On the previous day (09 December), an NPP VIIRS true color image (below; courtesy of Liam Gumley, CIMSS) showed the daytime coverage of the fog and stratus features that were trapped beneath a strong temperature inversion with stagnant high pressure in place over the region.

NPP VIIRS true color image (courtesy of Liam Gumley, CIMSS)

NPP VIIRS true color image (courtesy of Liam Gumley, CIMSS)

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