May’s Spring Snowmelt Across Alaska

It was declared green-up in Fairbanks on May 17, 2022 but there’s still snow across Alaska. This RGB image taken on May 17 using VIIRS with the NOAA-20 satellite shows different types of snow. Dark blue is old or wet snow & light blue is new or dry snow. High cirrus clouds that are composed of ice are shown as cyan and water-based clouds are white. The lighter cyan shows some areas of new snow in parts of the Seward Peninsula and western north slope.

See the VIIRS Snowmelt RGB Quick Guide for more information.