This was helpful to me in understanding more about Nares' "Large sea ice outflow into the Nares Strait in 2007"
http://onlinelibrary.wiley.com/doi/10.1029/2009GL041872/fullNares is important.
That paper says: "If there is a decreased likelihood of arch formation as the ice cover becomes thinner and weaker due to warming, there is the potential for the Nares Strait to shift to a higher flow state. In the face of a rapidly declining MY sea ice cover [Kwok et al., 2009], the outflow at Nares Strait could contribute significantly to the depletion of the multiyear sea ice area and volume of the Arctic Ocean, and thus the decline in summer ice coverage."
2007 I believe, has been the only year on record that did not see formation of the ice bridges.
"This resulted in the highest outflow of Arctic sea ice in the 13-year record between 1997 and 2009."
But, "The ice volume exported in 2007 represents >10% of the mean ice export at Fram Strait."
Nares is significant and not only because it could push a year past previous records, it has the potential for exporting some of the oldest ice, and is a symptom of a ailing Arctic. And, the volume is significant. But in terms of area/extent, 2007 saw 'only' 87,000 km
2 exported through Nares Strait out of about 10,559,000 km
2 lost that year.
It may be a significant portion of the 2014 melting season but likely a smaller one.