Weather Picture of the Day

NOAA-20 VIIRS day-night band captures Japan and the Korean Peninsula

NOAA-20 VIIRS day-night band captures Japan and the Korean Peninsula

The NOAA-20 polar-orbiting satellite's Visible Infrared Imaging Radiometer Suite (VIIRS) sent back its first day-night band images twenty-five days after the satellite was launched. In this image, captured December 13, 2017, the bright lights of urban centers such as Tokyo and Seoul stand out in sharp contrast to more rural land areas and dark ocean surfaces. The glow of fishing vessels off the coast of South Korea is also clearly visible.The VIIRS day-night band layer is created using a sensing technique designed to capture low-light emissions under varying illumination conditions, and is displayed as a gray-scale image. A higher signal-to-noise ratio compared with the Suomi NPP satellite's day-night band results in sharper imagery.

HiRes Image

Courtesy of NOAA Environmental Visualization Laboratory

Time Until The Winter Solstice
3 days, 16 hours, 11 minutes, 49 seconds

Weather History for December 17
Twenty-one cities from Kentucky to Pennsylvania reported record low temperatures for the date, including Columbus OH with a reading of 12 degrees below zero. Heavy snow continued in the Colorado Rockies. Vail received 65 inches of snow between the 14th and the 18th of December. Steamboat Springs was buried under 74 inches, and reported a total of 108 inches of snow between the 10th and the 18th of the month. (The National Weather Summary) (Storm Data)

A winter storm dumped as much as 3.6 inches of snow across Las Vegas, Nevada, prompting the closure of schools and highways. This was the largest December snowfall on record and the heaviest snowfall since January 1979 when a total of 7.5 inches fell (Associated Press).