As we welcome the first official weekend of winter, we face the potential of a significant freezing rain event. Light mixed precipitation fell during the overnight hours and we had many report of icy conditions early Saturday morning. The morning hours feature a lull in the precipitation, but showers will once again become more widespread during the afternoon. Colder air will start to pour in during the overnight changing any rain showers activity over to freezing rain. Heaviest precipitation expected after midnight into Sunday morning. Since there are so many different elements to this storm system I am going to break down your forecast a little different. Below are more localized forecast details.
Coastal - Rain showers become more widespread during the afternoon hours and the rain picks up in intensity tonight. Heaviest precipitation expected tonight into Sunday morning. We will see the rain change over to freezing rain Sunday morning. The NWS has put the coast under a freezing rain advisory until 7am Monday morning. The midcoast is under the ice storm warning until 7am Monday. The precipitation tapers to showers Sunday mid afternoon into early Monday morning. Most places still staying in the form of freezing rain. Portland may see things briefly change back to rain before things come to an end.
Inland Western/Central/Eastern - These are the places with the biggest concerns for a significant icing even. The NWS has placed this area under an ice storm warning until 7am Monday.
*Augusta will see rain showers pick up this afternoon. The rain then changes over the freezing rain after midnight and will be heavy at times through Sunday morning. Precip tapers mid/late afternoon and briefly changes back to rain before ending Sunday night.
*Bangor will see rain showers pick up this afternoon. The rain then changes over to freezing rain around midnight. There will be a period of sleet mixing in with the freezing rain during the early morning hours. Precipitation tapers into showers Sunday afternoon, but stays in the form of freezing rain until midnight Sunday.
*Rumford will see rain showers pick up this afternoon. The rain then changes over to freezing rain around 4am. The freezing rain tapers to showers during the afternoon.
Northern Location - This event will mostly be in the form of sleet and snow for you. Periods of snow continue through the day today, but will really intensify into the overnight hours. The NWS has placed northern Maine and the mountains under a winter storm warning. The jackpot of see the most snowfall over the next two days will be far northwestern places with a good 12" or more.
Extended Forecast - Monday is a transition day. Skies will remain mostly cloudy as the front finally slides to the east. One final wave of low pressure along the front could bring us some rain showers late Monday. Brighter skies and cold temperatures expected for you Christmas Eve and Christmas Day.