NEW: Central US Winter Storms February 2021 UPDATED: Arctic Amplification UPDATED: Winter Storm Risk Increase Map: North Pacific Sea Surface Temperature Anomaly, Oct. 1, 2018 by NOAA/NWS/NCEP/EMC Anomaly from 1961-1990 climatology. Click here for archived maps from 2018. Go to Site Related Events Rosa Remnants in the Southwest October 2018
