Significant changes in concensus moving forward with the AO. Most members take it negative. A great sign moving forward. Also, no sign at the moment that the SPV and the TPV are going to couple.
Also of interest is the robust signal for a very negative NAO moving forward. Could be an active and cold weather period for the East later in the month and in early December.
This might help the back end of winter I believe since there is a delay from ocean to atmosphere. Do you know how long it actually takes to occur, if indeed it focuses more East by early to mid December?
Interesting potential on a - NAO signal out in time. If it happens then the question is, does it retrograde further WSW in a ideal Davis Straight block.
Snow showers in the forecast here for this coming Friday, I had to look twice, thought I was in the wrong zone.
Friday
A chance of snow showers. Sunny, with a high near 49. Chance of precipitation is 30%.
That event produced here and was actually under-forecasted. Given it was mid-November it made the event more remarkable.
I still remember the long traffic delays.
Latest data supports a potentially colder December.
Good luck with your forecast. A cold holiday period would be great, some snow would make it even better !
Snow cover, both in Eurasian and North America, look pathetic. If you thought last winter had a rough start this looks even worse.
As HM mentioned things are looking ZZZ..... in the snow cover department.
Recent trends are starting to back up the idea that the PV starts to weaken again by mid to late month along with lessening zonal winds and possibly a change in the NAM state.
End of the month cool down possible after the mid-month warmth.
Actually in the end there is some evidence that this November's HDDs may end up closer to normal, however that remains to be seen.
If you are counting on our source regions to help deliver cold into our area this month the odds look very poor.
Many record highs in areas that should be much, much colder. Same issues as last year, and only getting worse.
Snow cover looks pathetic as well.