Convective weather criteria is reported using both social media (Twitter or Facebook) and voice communications as available.
Spotters are to use the standard Who, What, When ,Where, format.
Three addresses you will want to save for reporting valid winter criteria are for the National Weather Service in Sullivan, WI.
Those addresses are:
Twitter: NWS Milwaukee
Facebook: NWSMKX
Along with the SULCOM Defined Criteria, the NWS would appreciate Storm total rainfall amounts. When reporting storm total amounts start time and duration is required.