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40/70 Benchmark

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About 40/70 Benchmark

  • Birthday 11/16/1980

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  • Four Letter Airport Code For Weather Obs (Such as KDCA)
    KLWM
  • Gender
    Male
  • Location:
    Methuen, MA, 154' ASL 30 mi N of Boston
  • Interests
    Snow, Canes , Baseball, Football and Keeping Fit.

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  1. 40/70 Benchmark
    What I did tonight is just one part of what will be the full outlook...I also do a whole section on the extra tropical Pacific, which I haven't even touched yet. I also consider some sensible weather analogs from the summer across the country...this is just the first piece to the puzzle.
  2. 40/70 Benchmark
    Obviously, I understand that if you reach through....but I'm not sure how to avoid that with an analog composite. Not to mention this isn't a winter forecast composite....it's a preliminary polar domain composite in July. Anyway, I did address this within the narrative. The correction to watch for in verification is higher heights over the southeast and an expansion of the Canadian ridge to the southeast, as lower heights in the vicinity of the southeastern CONUS has been a bias during this modern era. This also applies to the preliminary polar analog composite. All of that being said, if it is still possible to pop a strong GOA low in the seasonal mean, this El Niño will do it.
  3. 40/70 Benchmark
    Reading quickly, cold AMO favors stronger PV, warm weaker. I have to brush up on that.
  4. 40/70 Benchmark
    I guess so, since it's North Atlantic....I'll probably add it to the polar section in the full outlook.
  5. 40/70 Benchmark
    I don't think AMO is directly tied to the polar domain, though.... Yea, I have gradually been expanding my purview since I started that blog in March 2015.
  6. 40/70 Benchmark
    Yea, it's tough to convey your thoughts with surgical precision in an analog composite, but I hedged heavily throughout the narrative that confidence was much higher in a +NAO than +AO....at one point, I calculated the DJFM mean of the composite and the AO was almost dead-on neutral...barely positive.
  7. 40/70 Benchmark
    Funny how that NW-SE slot of warmth in my composite is the polar (no pun intended) opposite of last year, which had the cold swath there.
  8. 40/70 Benchmark
    The AMO is pretty much the only aspect I didn't really touch on, though I supposed that isn't specifically connected to the polar domain, so that is probably best left for the actual outlook....but I do have that in the back of my head for colder risks. I def feel the correction vector for me is colder. Didn't December 2018 have a mid Atlantic snowstorm? I remember it missed me, but I think it nailed VA.
  9. 40/70 Benchmark
    Oh, I was speaking specifically of SSW....I understand that in general, the PV is weaker during El Niño.
  10. 40/70 Benchmark
    Did I say La Niña? Must have been a typo..where about?
  11. 40/70 Benchmark
    Shit, I can't compete with that...should have done my homework-
  12. 40/70 Benchmark
    My early look at the polar domain...pretty deep for a first hedge. https://easternmassweather.blogspot.com/2026/07/preliminary-assessment-of-polar-domain.html Primary Polar Analogs: 1982-1983, 2015-2016 2026-2027 Polar Analog Composite:
  13. 40/70 Benchmark
    My early look at the polar domain...pretty deep for a first hedge. https://easternmassweather.blogspot.com/2026/07/preliminary-assessment-of-polar-domain.html Primary Polar Analogs: 1982-1983, 2015-2016 2026-2027 Polar Analog Composite:
  14. 40/70 Benchmark
    @Stormchaserchuck1What did you say the SD of your formula is? .30? 70% of getting .30 within the outcome? @bluewaveDo you know where that post is that you made comparing past seasonal forecasts to reality? TIA.
  15. 40/70 Benchmark
    Absolutely agreed with this....the warmth in 1.2 renders it a moot point in terms of the seasonal mean, however the warmth in the rest leave the door open for some volatility IMHO. Regardless, it will be warm overall.
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