RT @JohnNOAA: Modeled view of the #PolarVortex yesterday & today via @NOAA #ScienceOnaSphere facebook.com/photo.php?fbid… @NOAAResearch http://t…
RT @JohnNOAA: Modeled view of the #PolarVortex yesterday & today via @NOAA #ScienceOnaSphere facebook.com/photo.php?fbid… @NOAAResearch http://t…