00:00Part of the story here is, well, in the short term, we've got strong high pressure over eastern Canada.
00:04That's helping to direct a strong pressure gradient.
00:08We'll look at this here, their baby storm system offshore, not yet in nor'easter.
00:12But there's also an injection of colder air here, a little swirl over Illinois.
00:15It's related. That's going to be moving offshore.
00:18That's going to help to fuel this storm.
00:20So we've got, in the short term, very strong high pressure to the north, like ear-popping, I'm exaggerating, high
00:26pressure.
00:26That in conjunction with this moderately strong low pressure system to the south.
00:31And that's funneling this northeast wind just by virtue of the pressure gradient,
00:36the contrast between the beautiful weather over eastern Ontario and Quebec and what's going on a little bit north of
00:41Bermuda.
00:42So that's directing this onshore northeast wind.
00:44But also this cool air aloft, this puddle of colder air, that slides offshore.
00:48And actually, there's a chunk of energy that goes out to sea.
00:51And then that new low pressure system energizes this upper level low pressure system aloft.
00:57And that's going to marinate over the warm water of the Atlantic long enough that it really explodes in intensity
01:03and becomes the system that hugs the coast of New England.
01:06Hanging out over the coast offshore, the warm Gulf Stream water is going to fuel this over two to three
01:12days.
01:12This may even gain some subtropical attributes or characteristics.
01:19And that could be enough for the National Hurricane Center to give it a name,
01:22regardless of if it gets enough subtropical characteristics or if it remains a cold, angry North Atlantic low.
01:29A lot of the pieces of the puzzle that will come together will make this behave just like a classic
01:35nor'easter here offshore.
01:37And look out for the rain to kind of back into New England here on Friday.
01:40With soaking rain and strong winds, the most exposed parts of the coastline, the east-facing slopes,
01:46are going to face some big waves and strong winds.
01:49So this will be a significant September nor'easter impacting New England.
01:51A quick look at Friday.
01:53We've got rain and wind.
01:54Boston, Providence, out into Nantucket, Martha's Vineyard, and Cape Cod.
01:59Nasty winds.
02:00That red zone here, major impacts.
02:02Anna showed you the version farther south.
02:03Here we are Friday, Saturday, Sunday into the New England states.
02:06And how much wind are we looking at?
02:08We're looking at gusts of 40 to 60 miles per hour in many areas.
02:11Somebody out there could see an isolated gust of up to 80 miles per hour,
02:15perhaps with a gusty squall somewhere near Barnstable County.
02:20But power outages, we're going to have regional outages for coastal New England.
02:23That will lead to tens of thousands of addresses without power.
02:26It will be a very heavy round of rain for a time, Friday night, Saturday into Sunday.
02:30Significant coastal erosion and flooding.
02:32And we're looking at four to eight inches of rain there in southeast New England.
02:35Somebody out there on the extreme high end could achieve more than a foot of rainfall with this.
Comments