Summary

  • A mixed precipitation event affected central New York and northeast Pennsylvania on January 23-24, 2017.
  • There were small model differences in forecast thermal profiles for the event, which would result in large differences in precipitation type and snowfall.
  • High resolution models accurately forecast more mixed precipitation and less snowfall than some other guidance, including guidance from WPC.
  • Observed precipitation type included more freezing rain then sleet, despite thermal profiles that likely included a warm layer between 1 and 3 degrees C.
  • A significant amount of rain and freezing rain fell during this event, followed by several inches of heavy, wet snow.


Slide 29