Just looked at some flights from Dulles into Newark for today (Wed) and many have been cancelled.
From the FAA site:
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Due to WIND/LOW CEILINGS, there is a Traffic Management Program in effect for traffic arriving Newark International Airport (EWR). This is causing some arriving flights to be delayed an average of 3 hours and 30 minutes with some arriving flights receiving as much as 6 hourDue to WIND/LOW CEILINGS, departure traffic destined to New York City's Laguardia Airport (LGA) is currently experiencing delays averaging 5 hours and 3 minutes, with some flights receiving as much as 9 hours and 29 minutes delay.
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I'd hate to be the person delayed 9 hours and 29 minutes today.