Newfoundland may experience heavy rainfall and high winds this weekend as a tropical storm, currently east of Florida, tracks up the U.S. east coast and moves into the Atlantic region.
Tropical storm Arthur is expected to intensify to hurricane strength tonight as it moves slowly northeastward off the U.S. east coast, with wind speeds of up to 130 to 140 km/h. A trough of low pressure will move eastward from the Great Lakes, guiding Arthur toward Atlantic Canada.
As it tracks through the Atlantic region, Arthur is expected to be downgraded to a post-tropical storm. Wind speeds, when it reaches Newfoundland, are expected to be around 75 km/h.
Environment Canada says it's analyzing the development of the storm and latest computer model forecasts to gain an early indication of how the storm may affect weather in Atlantic Canada.
"The nature of the trough approaching from the Great Lakes will make all the difference in Arthur's intensity, track and structure as it moves toward our region," the weather office says on its website. "Scenarios range from a direct effect with wind and rain to a well-offshore track with perhaps just rain from the trough, drawing moisture from the tropical system."
Updates can be found on Environment Canada's website at http://weather.gc.ca/