This data visualization shows the maximum wind gusts from Hurricane Irma from September 7 to September 10, 2017. Note how the strongest wind gusts are on the north side of the storm track (the faint dotted line). According to the NOAA's National Hurricane Center, Irma's maximum sustained winds ranged from 110 (on 9/10) to near 180 (on 9/7) miles per hour during this period. This graphic was created with data from the RTMA, which uses surface observation data to create a highly accurate gridded analysis of past weather conditions. The data covers only the Continental United States and coastal areas, so areas of the storm further to the south and east, where Irma was at maximum intensity, are not visible>Snow and ice cover has a profound impact on the overall health of the planet. This frozen part of the world is called the cryosphere and the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument on board the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite -- and the forthcoming satellites of NOAA's JPSS constellation -- helps experts determine how the cryospehere is changing and to what effect.