I was boating with my family yesterday from Edmonds to Poulsbo and encountered about 1/2 mile of broken ice (not slush) upon entering Liberty Bay. It covered about half of the bay and appeared to extend from shore to shore.
I'm a newbie to boating in winter and am curious about how common it is to find ice in Puget Sound in this manner. The recent weather has been colder than normal for the area however the air temperature was only around freezing at the time. I would imagine that there would have to be a top layer of fresh water above the salt but where did it come from? And wouldn't the salt water (probably not much below 40 deg F if that cold) keep the fresh water from freezing? There was heavy rain and snow here a day or two before; or is the only explaination that this ice would have to float down some adjacent river? The ice chunks seemed to be consistent in size and thickness which would seem to rule out the latter.
The ice made quite a racket against the hull even at minimal speed and I was concerned about the gelcoat getting hammered; however I was able to tuck behind a large Bayliner 'icebreaker' for the journery into Poulsbo Marina. The Bayliner skipper claimed to be an old salt and was baffled as well. When we left the marina two hours later the ice was gone.
Could anyone shed light on this, other than I'm crazy?
I'm a newbie to boating in winter and am curious about how common it is to find ice in Puget Sound in this manner. The recent weather has been colder than normal for the area however the air temperature was only around freezing at the time. I would imagine that there would have to be a top layer of fresh water above the salt but where did it come from? And wouldn't the salt water (probably not much below 40 deg F if that cold) keep the fresh water from freezing? There was heavy rain and snow here a day or two before; or is the only explaination that this ice would have to float down some adjacent river? The ice chunks seemed to be consistent in size and thickness which would seem to rule out the latter.
The ice made quite a racket against the hull even at minimal speed and I was concerned about the gelcoat getting hammered; however I was able to tuck behind a large Bayliner 'icebreaker' for the journery into Poulsbo Marina. The Bayliner skipper claimed to be an old salt and was baffled as well. When we left the marina two hours later the ice was gone.
Could anyone shed light on this, other than I'm crazy?