Long-range clues and Larry update

Major Hurricane Larry is expected to brush Bermuda Wednesday night and early Thursday before turning more toward the northeast and accelerating toward Newfoundland at the end of the week.

We are still several days away from any possible impacts to Newfoundland from Larry, however, there is pretty good consensus that Larry will likely pass close enough to Newfoundland Friday night into early Saturday and potentially bring a period of heavy rain and strong winds to the southeastern coast, including the Avalon Peninsula.

When Larry reaches its closest point to Newfoundland it will be starting the transition from a hurricane to an extratropical storm. This would likely result in an expanding wind field out away from the center and also an expanding rain shield north and west of the center. At this point, we expect at least tropical-storm-force wind gusts and some heavy rainfall over southeastern Newfoundland. In addition, large swells, rough surf and strong rip currents can be expected along the entire western Atlantic coast from the southeastern United States to Atlantic Canada, the second half of this week.

Keep in mind, these wind and rain forecasts can change significantly over the next few days as the exact track and intensity of Larry may shift.

Long-range clues into early October

Latest signals suggest a noticeably cooler pattern setting up over western Canada for the second half of September, which may be some good news for the wildfire situation.

As the West cools, expect at least a two-week period of above-normal temperatures across a large portion of central and eastern North America from mid-September to early October. If this pattern holds it would likely favor any tropical activity being more directed into Florida and the Gulf of Mexico.

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