Winter storms over the past few weeks have wreaked havoc on the country’s efforts to get people vaccinated against COVID-19.

The weather has already forced some sites to close today. In Rockland, the County Health Department is rescheduling second dose vaccinations today and tomorrow because of the snow.

In Orange County, health officials are pushing today’s appointments to next week.

In Dutchess County, people who were scheduled to receive their second dose of the COVID-19 vaccine today at the former JCPenney location at the Poughkeepsie Galleria will have their appointments rescheduled for Sunday, Feb. 21.

In Westchester, the County Center is still open for appointments.

The last major winter storm halted vaccinations at the County Center for two days, and then created massive lines for days after as officials rescheduled appointments.

Today, people were lined up well before the center opened at 8 a.m., hoping to get their shots before the snow hit.

Officials say nationwide storms are also sparking vaccine shipping delays. That's why the Westchester County Department of Health closed local sites for today and tomorrow. This includes:

There is no word yet on when the next shipment will come as an ice spell affects delivery of vaccines across the country.