Prince Edward Islanders are being warned about nasty weather coming from Hurricane Arthur, which is travelling up the eastern seaboard Friday.

In a briefing at the Canadian Hurricane Centre early Friday afternoon, program manager Chris Fogarty said he expects the forecast to get worse.

Chris Fogarty

It's going to be a nasty day on P.E.I., says Chris Fogarty, program manager of the Canadian Hurricane Centre. (CBC)

"We'll probably be increasing our winds in the forecast for Prince Edward Island now based on some latest things that we're seeing in the satellite imagery and the computer models." said Fogarty.

"It's going to be a pretty nasty day over there."

Environment Canada issued a tropical storm warning for all of P.E.I. at 10:24 a.m. 

Cancellations can be tracked throughout the day Saturday at CBC's Storm Centre.

The current forecast is for winds to blow at 60 km/h with gusts to 90 km/h or 100 km/h across the province during the day on Saturday. 40 to 50 mm of rain is expected in some areas, with the heaviest rain in Prince County. Fogarty said most of the rain would come quickly overnight.

Hurricane Arthur made landfall in North Carolina Thursday night with wind speeds of up to 155 km/h. Arthur will move up the coast, and many communities in the United States are cancelling Independence Day celebrations.

Event organizers on P.E.I. are also keeping an eye on the storm.

It is expected to lose intensity as it hits the cold waters off Nova Scotia, but is forecast to still have wind speeds around 110 km/h when it passes over Yarmouth early Saturday. From there the storm will run across the Nova Scotia mainland, crossing eastern P.E.I. as a post-tropical storm Saturday night.

The biggest event this weekend is the Cavendish Beach Music Festival. Thousands are expected to attend performances by Blake Shelton, Lady Antebellum and Hunter Hayes. Fogarty said Environment Canada staff are consulting with festival organizers hourly.

Festival organizer Jeff Squires says the current plan is for the festival to go ahead. Organizers will meet again at 4 p.m. Friday, check the forecast, and review the decision.

Festival tickets are non-refundable.

Penny Walsh McGuire

P.E.I. 2014 is watching the storm closely and may make changes or shut down the Celebration Zone in Charlottetown, says executive director Penny Walsh McGuire. (CBC)

Another major concert event in Nova Scotia, Stanfest, has been cancelled because of the storm. Squires says the situation is different for Cavendish Beach. It is further from the centre of the storm, and the site is closer to emergency services.

On the Charlottetown waterfront, P.E.I. 2014 is preparing to take down parts of its Celebration Zone if the forecast gets worse. Big screens and tents could be dismantled for the weekend.

"To protect the safety of the public and the staff, the plan ranges from modifying the site, so closing down certain structures, bringing down flags and signage that could become loose in the event of high winds to closing the site entirely and at this point there is no change in the schedule. We monitor the weather in real time," said P.E.I. 2014 executive director Penny Walsh McGuire.

The vintage automobile event, Show 'n Shine, marking its 36th year this year, is making changes for the weather. Some events are moving inside, and the Rod Run could be cancelled.

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