Post by Fountainguy97 on Oct 4, 2018 8:51:28 GMT -5
Well me and Tyler started looking toward our winter forecast yesterday.
Interesting points for this winter:
Low Solar: we are approaching solar sun spot minimum
Me and Tyler have found through reading and our own recent findings that low solar years have MUCH higher chance of blocking. This translates to research finding that low solar years are 4x as likely to be cold (stolen from research via the mid Atlantic forum)
El Nino Likely: Seems like weak/mod nino While it struggled to climb through summer there is now a VERY solid warm pool. That in combo with all forecasts showing increased westerly winds.
Also we had an unusual event in September. We had an insane amount of tropical cyclones in the Pacific. This caused an INSANE positive anomaly of moisture in the atmosphere. This caused a high pressure to build over the PNA region and Alaska. SO strong in fact that it punched north over the pole. This is very unusall but guess what? Common in low solar years as this is a sign of increased blocking.
Finally, here is the September height anomalies across the N. Hemisphere.
Post by Fountainguy97 on Oct 4, 2018 9:05:34 GMT -5
SO the above post is what we used to find out some similar years.
I meticulously pulled EVERY September from every year since 1950 and cataloged them via ENSO patterns.
I then picked through them using the low solar aspect of this winter.
Then weeded further down to just neutral and nino years since that's what this will be.
Then I did some of my own decision making and deleted years that were not similar for heights in Sept.
That left us with 4 years:
1965-66 1972-73 1986-87 2009-10
These will not be very common analogs as most people just look at low solar or enso. We took EVERYTHING into account. ALL of these years are in low solar and 3 in the absolute lowest of their time. ALL of these are Nino. ALL of these follow at least one year of nina. ALL of these are similar patterns in September into October.
These are the closest years you will find for the current patterns. All of them.
So lets take a peek shall we??
Composites:
Winter Temps.
Winter Precip.
So the combo of these years lines up perfectly with the early thoughts. Low solar+ nino= typical nino but higher chance of cold.
This is the general idea month by month: per analogs
December: Normal temps (+1 to -2) normal precip January: COLD (0 to -6) above normal precip February: normal/slightly below (0 to -2) normal precip
Here is insanity hehe.
So far all of my thoughts and Tyler's point toward a colder winter.
KEY POINTS:
El Nino: we can bank on it due to subsurface and increased westerlies next few weeks Low solar: we can prove its helping blocking. look back at the Heights sitting over the pole right now.
This is about as good a look as you can get in this timeframe.
We have el nino which favors a good storm track. ON TOP of low solar which makes cold THAT much easier to find.
We are still looking into this but Siberia has been warm recently. IF our cold can set up on our side of the global (hasn't happened in a LONG time) we could be very happy come January.
Post by Fountainguy97 on Oct 4, 2018 9:07:54 GMT -5
Also this heat ridge right now is good for winter. Canada has seen some INSANE cold and snow for this time of year. IN fact their snow is the highest on record right now.
While this could change before it really matters this is a good sign pointing toward the northern cold axis rotating to our side of the globe this year. Low solar with more blocking favors this funnel into Canada and US as well.