Saturday, September 21st 2019, 8:20 am - Post-tropical Humberto will move into the open Atlantic Saturday afternoon.
Once a major Category 3 hurricane, Humberto will have little impact on Atlantic Canada as it passes through Canadian waters as a post-tropical storm on Saturday.
That's not to say there will be NO impact. Heavy bands of rain related to the storm will drench Newfoundland's Avalon peninsula into early Saturday morning, but the remnants of the storm itself have no real chance of making landfall or even coming close enough for a more potent impact.
"Humberto is well removed from the gulf stream and is over [sea surface temperatures] in the high teens," said the Canadian Hurricane Centre in its Saturday morning update. These colder surface waters mean the post-tropical storm has lost its source of energy. Winds are also unfavourable for the storm's continued existence, as it's torn apart by wind shear.
"It will remain in an extremely high shear environment, and thus will continue to gradually weaken as it slowly accelerates east-northeastward across the Grand Banks this morning and should move into the open Atlantic by this afternoon."
Beyond, forecasters expect a warm start to the next week, with even the Avalon seeing temperatures near 20ºC, though becoming unsettled Monday night into Wednesday as a new system and cold front track into the region.
The latter half of the week looks mostly dry and mild into the next weekend, but forecasters are keeping an eye on the track of Hurricane Jerry, which is presently far out in the Atlantic.
"While a couple of models have tracked Jerry into Atlantic Canada late next week, at this point it looks like the track will remain well out to sea with no significant impact to Atlantic Canada other than dangerous surf," Weather Network meteorologist Dr. Doug Gillham says.