Currents can be as strong as 10 kts around the Casquettes lighthouse. The coastguard have a program that they put in the initial position and it calculates a search area based upon tides and winds etc.
Someone mentioned that it might be considered an odd place to ditch, but if you have no option...... but unfortunately even in 15C water temps, time of survival is not that long unless you have a life raft and immersion suit.