Cpv17 wrote: Iceresistance wrote:
This looks interesting by the end of this month
The High Pressure zones up at Alaska, Canada, & Greenland could cause a Arctic invasion here by February even though it's very far out.https://s2.gifyu.com/images/gfs_mslpaNorm_namer_65.png
Also, 2 Meter Temperature is showing a extremely
cold air mass coming into Alaska from Russia towards the end of January, could come down in the next few weeks after moving into Alaska, it's a wait & see for this potental Polar Plunge. https://s2.gifyu.com/images/gfs_T2m_namer_fh294-384.gif
It’s been consistently showing that in the long range for a while now. It’s certainly trying to sniff out something.
The wild card in the pattern is going to be the -PNA (SE Ridging). That signal could bottle up some of the cold for a bit and create a real battle zone. The good news is the pattern should remain active and as long as the NAO and AO cooperate (EPO potentially going negative), we should still be in business going forward with hopefully the cold eventually winning out. Still some hope with this setup.
It's currently the -AO & -NAO, & it's been like that for a while
The NAO has turned Negative around Last week of December, and it's going to be that way for a while for the next 2 weeks
Odds of snow are higher here with a Negative NAO, now when does the PNA become negative is when EVERYTHING might stack up for a arctic surge . . .
(The PNA had been positive since November
, but the models are showing a -PNA around the last week of January.
(As mentioned up there by a PDF from txtwister78. Either way, thanks for the map
Also, the AO turned Negative around December 1st, 2020. But right now, it's going less negative even though the models are very consistant on a rise to low negative levels before dipping back down, very uncertain on the 7 & 14-Day range.
Negative AO means more Arctic Invasions here