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Doldrums of weather heading into June


CoastalWx

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GFS is coming in as a torch for early next week. Lets see if euro agrees. I do think one or two days could be very warm to hot...especially interior.

Yeah, I talked about that extensively yesterday; pattern/regime change is actually already underway.

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Yeah, I talked about that extensively yesterday; pattern/regime change is actually already underway.

Yeah it will definitely change, but how much and how long of a big warm push will it be? Euro had s-se winds practically through the period. GFS has ore of a W push. I do think the warm air will make an entrance of some sort even into ern MA. Could be a battle...maybe MCS action Monday Night?

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Looks more like the ensembles. Still can't get a multi day surge thanks to the trough in the east, but maybe it drives a few MCS to the south-southeast.

Yeah, I'd like to see a convincing +NAO signaled and we don't have that just yet. What we have is a +2 recovery in the overall index that barely brings the domain to 0.0.

The current NAO block is dismantling very fast, though. It was 580dm or so as near as yesterday over Baffin Island-Greenland (classic West baser that we couldn't buy in winter :axe:), but now has decayed to 570 and change, shrunk in areal coverage, continues to do so, as it is slipping/retrograding SW through the D. Straight in route to merging with the central N./A ridge axis.

That synoptic evolution was heavily agreed upon by all the models, regardless of type, creed, race or religion.

As a twist of circulation system luck, the Pac wants to send a trough signal into western N/A. Normally I'd refer to that as an evolving negative PNA, but the June correlation off the PNA has been statistically shown to be N/S (*No skill). In fact, CDC doesn't even correlate it with the other teleconnectors during JJA.

Anyway, it doesn't matter though... It's a -PNAP pattern, versus the current at least tendency for a +PNAP pattern. By PNAP, "Perennial North American Pattern". The PNAP is the average perennial pattern over N/A, which favors modest ridging in the west, trough coupled in the E. All these various amplitudes that run through it in the dailies, monthlies, ...yearlies, they are all just permutations/SDs of that where the (x1-xn)/n create that configuration. So a 0 PNAP would mean low amplitude western ridge configuration. It makes sense fluid dynamically because of the Rockies cordillera.

So after the primer ... that trough arriving in the west does trigger a bit of a Sonoran release event, but since the NAO is really not committing to a positive SD, that's limiting the expulsion out of the deep SW of that cT air. There is some there, though. I keep seeing random ECM operational runs with pockets of +21C air meandering up through the GL, upper OV into Ontario. But the NAO's refusal to really go positive is allowing heights to sag too much just off-shore. That creates a "tuck pattern" for us, where the warm conveyor run N of the area and we get a counter-current of weak back-doors and/or general resistance to moving a deeper mass of the cT air in here. That last episode of heat did exactly the same damn thing, and was modeled to tuck for the first 2 days. That caused a lot of the area to not make it to the party, or limit their stay.

If the NAO slips more positive, that sagging nagger off-shore would tend to fill, and then the dragon breath would blow right at us.

Whether it gets in here or not, the late middle range and early extended period looks to have heat advisory level stuff for the ORD-BUF corridor.

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Yeah, I'd like to see a convincing +NAO signaled and we don't have that just yet. What we have is a +2 recovery in the overall index that barely brings the domain to 0.0.

The current NAO block is dismantling very fast, though. It was 580dm or so as near as yesterday over Baffin Island-Greenland (classic West baser that we couldn't buy in winter :axe:), but now has decayed to 570 and change, shrunk in areal coverage, continues to do so, as it is slipping/retrograding SW through the D. Straight in route to merging with the central N./A ridge axis.

That synoptic evolution was heavily agreed upon by all the models, regardless of type, creed, race or religion.

As a twist of circulation system luck, the Pac wants to send a trough signal into western N/A. Normally I'd refer to that as an evolving negative PNA, but the June correlation off the PNA has been statistically shown to be N/S (*No skill). In fact, CDC doesn't even correlate it with the other teleconnectors during JJA.

Anyway, it doesn't matter though... It's a -PNAP pattern, versus the current at least tendency for a +PNAP pattern. By PNAP, "Perennial North American Pattern". The PNAP is the average perennial pattern over N/A, which favors modest ridging in the west, trough coupled in the E. All these various amplitudes that run through it in the dailies, monthlies, ...yearlies, they are all just permutations/SDs of that where the (x1-xn)/n create that configuration. So a 0 PNAP would mean low amplitude western ridge configuration. It makes sense fluid dynamically because of the Rockies cordillera.

So after the primer ... that trough arriving in the west does trigger a bit of a Sonoran release event, but since the NAO is really not committing to a positive SD, that's limiting the expulsion out of the deep SW of that cT air. There is some there, though. I keep seeing random ECM operational runs with pockets of +21C air meandering up through the GL, upper OV into Ontario. But the NAO's refusal to really go positive is allowing heights to sag too much just off-shore. That creates a "tuck pattern" for us, where the warm conveyor run N of the area and we get a counter-current of weak back-doors and/or general resistance to moving a deeper mass of the cT air in here. That last episode of heat did exactly the same damn thing, and was modeled to tuck for the first 2 days. That caused a lot of the area to not make it to the party, or limit their stay.

If the NAO slips more positive, that sagging nagger off-shore would tend to fill, and then the dragon breath would blow right at us.

Whether it gets in here or not, the late middle range and early extended period looks to have heat advisory level stuff for the ORD-BUF corridor.

I think it will eventually go + enough in the extended to at least bring some heat in, especially with a -PNA. I'm just a little gun shy here in ern areas this time of year because it doesn't take much for heat to be a fail as we all know. But for now, it looks like a 36-48 hr period of very warm wx next week...depending on where you are.

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fantastic beach weather coming up, hope it holds. One thing this offshore storm has done is drop the near shore SSTs pretty quickly.

I was shocked how warm the sound has been so early, like tolerable. Im sure it will be different this weekend, but to be so warm in May was impressive.

Good call on the snow dusting the prezies!

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Ouch! Brother in Laws striper tourney last weekend, 42lber took first place, 37 2nd and 28 3rd, 42lbs is big around here, damn big and it was blowing like crazy friday afternoon.

Nice!

Yea everyone was raving last week how warm the water was. I go and its your nuts in your throat cold, figures.

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I also think the Euro is walloping the eastern ridge too much beyond D7...

This is my biggest contention with the Euro these days. I mean, all models intrinsically suck beyond D5.5, sure. But the Euro's bias is particularly egregious to me. It keeps taking innocuous S/W at D 5, and turning them in carving menaces by D7. This run is no different. It takes a rather small wave over the N Rockies/Manatoba, and turns it into a progressive sup-polar vortex without any input from any other device. It just sort of goes, up, better engineer one!

Going back many months I have noticed the Euro doing this with that 5-8 day range. It loves to carve weak entities into monsters over the NE U.S.

I am 100% confident that tonight's run will start the process of backing off on the polar boundary placement.

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Just home from a long, tough last 2 days.

Had a downpour this AM in far NW Jersey then sun/cloud mix and temps got 68-70 as we went to the cemetary in Easton, Pa.

Looks like our high here was in the mid 50's..so no 40's..though now it's down to 48.2 miserable degrees.

Good news is each day from here on out get s a little better,,warmer and more sun each day..and we're rewarded with a nice warm weekend, and then a heat wave next week.

The worst of this misery is now over

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