UPDATE 1:30 p.m.
The show will go on, but there will be some changes to the New Year's Eve events on Parliament Hill.
The fireworks will still go on, but there will be no musical performances.
You will be also be able to skate on the Canada 150 Rink on Parliament Hill on New Year's Eve, due to the change to the Bell Capital Cup hockey tournament schedule.
However, on Sunday the temperature is set to drop to -40C, so anyone wishing to attend will have to dress in layers and bundle up well.
---
OTTAWA -- Mother Nature drowned out Canada Day on Parliament Hill and now she's doing her best to freeze out New Year's Eve.
Andrew Campbell, the senior executive director in charge of the Canada 150 secretariat, said a decision will be made very shortly on whether to cancel events planned for Dec. 31.
Organizers say they are checking the forecast every hour hoping to see some improvement but the polar vortex that has turned Ottawa into a living icicle shows no sign of lifting until at least January 2.
Campbell said with the current forecast offering up temperatures close to -28 Celsius with 15 km/hour winds fireworks and a multimedia light show might not be able to continue.
Campbell said he doesn't want a situation where the equipment doesn't work or fireworks sputter and die because of the cold and people need to be given the information in time to make their own call about what to do.
The weather has already forced the cancellation of youth hockey games on the Parliament Hill Canada 150 skating rink but Campbell said public skating continues.