Hurricane Hallie

Hallie formed from an elongated cold-core circulation north of Puerto Rico that organized enough to be called a subtropical depression on October 12, 1970. The next day it reached storm intensity, and after a drift to the west, reached hurricane intensity on the 16th. On the 16th it passed by Bermuda, but damage was minimal. Baroclinic processes let the storm reach a peak of 100 mph winds before becoming extratropical on the 17th.