The damaging storm's forecast to hit north-eastern America with the potential to cause heavy snow, high winds and flooding – affecting up to 50 million people.
Thousands of flights have already been cancelled however Enda Kenny's delegation has made it to Washington – earlier than planned.
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Here at home Aer Lingus says its been forced to cancel 12 flights due to Storm Stella 10 routes between Dublin and New York, Boston and Newark have been affected. Two flights between Shannon and Boston are also cancelled.