I wrote about the thermal plume from the reactor at Vermont Yankee, and suggested that there would be more freezing of the water at the Coolidge Bridge. For comparison, here is a view of the Connecticut River looking toward the Coolidge Bridge taken on Jan 19, 2013:
Here is a similar view taken on Jan 17, 2015, after the reactor has shut down.
It is readily apparent that there is much more ice on the river. I do not have pictures from last year, the very cold year associated with the “Artic Vortex.”
There are now areas of ice entirely across the river, looking upstream from the bike bridge in Northampton, MA on January 17, 2015. I do not have photos from the past, but it was open water.
Anneke and I went to the French King Bridge last weekend to look at the river, and ran into a man selling honey by the river. I asked him if he had noticed more ice this year, and he said that the Connecticut River was now frozen at the bridge at Northfield. Unprompted, he explained that there was more ice on the river because they have shut down the reactor at Vernon.