•Icy travel likely overnight into tomorrow morning.
•Temps will warm into the 40’s on Thursday under partly cloudy skies.
•Clouds will be on the increase late tomorrow ahead of our next system
•Showers move into the region on Thursday night and linger through the day Friday, a steadier batch of rain passes through on Friday afternoon
•Some snow may fall initially on Thursday night across the Catskills and northern HV
•Rainfall totals are expected to be generally light with anywhere from .20-.50 of rain across most of the region
•Warm air passing over the colder snow pack will lead to areas of dense fog on Friday
•Frozen ground and blocked storm drains mean that even light amount of rainfall can cause localized flooding concerns
•Snow on roofs and other structures will absorb the rainfall and the weight of the snow load will increase, this raises more concern for roof collapses across the region
•Temps on Friday night are expected to drop back down below freezing, meaning any standing water will likely refreeze and lead to additional icy conditions
•Colder air is expected to return as early as Monday, any existing snow pack will likely turn into a solid slab of ice that may be more difficult to deal with in the future, utilize the next few days to remove any snow load concerns or ice build up
•Winter is not over, signals continue to indicate temps as cold as early January will return to the region, along with renewed chances of winter storms
While driving around today I could see many house that were building up some serious ice dams on their roofs, best indicator is a visibly large slab of ice that runs the length of the roof line. This is one of the reasons why its important to either use a roof rake to clear snow off (especially above the gutters), have a well insulated and ventilated attic, or heating cables. Ice dams can pull gutters away from your fascia board,damage shingles,insulation and sheathing, and cause water damage to the inside of your house. With the continuous thaw and refreeze we will be seeing the next few days it will be very important to take the opportunity during the warmest part of the day to clear as much ice and snow away from your gutters as possible. Each night as the temps drop the process will only worsen and build up, with the return of an indefinite period of sub freezing temps by next week, it is a now or not for a few weeks mission for most.
Below is an image to help illustrate what an ice dam is and how it forms: