September Snow Shots

By:  Lionel Hutz
September 21, 2012 10:15 am | Category: Skiing, Weather

Eariler this morning I wrote the following on Facebook:

Over the next week the N/E is going to have two shots at seeing some flakes. The first chance will come Sunday night into monday morning. A trough swinging down and through the great lakes out of Canada will push east over our area saturday night, with rain clearing the area sunday morning. In the wake of that front, cool air will build in. h85 temps on the GFS have remained steady at -1 to -3
C. Therefore, any embedded low level moisture on the N/W flow will produce upslope precip in the form of light flakes. The air mass is not too wet so we’re only talking about flakes in the air or at best a coating above 3000 feet. Notably the NAM holds the core of the cold air back to the west and blunts its progression across the north country on sunday. Looks a bit odd to me, so I’m going with the GFS.

The next threat comes wednesday night into thursday. A lobe of cold air will sink down behind a cold front pushing south out of canada. The 0z gfs today is much warmer than previous runs which had cold air at h85 all the way down through the catskills. REgardless, I like these two shots right now and think the are worthy of my close attention.

Well let me expound on that for a moment.

Here is the first shot as depicted with the GFS. Pay attention to the 0c h85 isotherm:

Yep..that’s a “.gif.” (hopefully it works). Were trying something new! Just like Costanza ” Anyway you can see the cold air filtering in on the northwest flow around the large high pressure moving into the great lakes. That, combined with the northerly flow around the week low off to the east will certainly usher in plenty of cool air into the N/E.
The question will be how much moisture lingers. That cold air is going to be pretty dry, but looking at the progged 850 rh values there is evidence of SOME moisture lingering at the mid levels of the hills and on up to the summits:

While I’d like to see more moisture, with the northwest flow, evaporative cooling from the orographic uplift and the cool air in place, I’d be willing to bet the summits down to about 3000 feet see at least some flakes flying around sunday night into monday am- maybe even enough to dust some cold rocks up high.

Later in the week a second, slightly more robust shot at flutter will arrive.
Here’s the GFS for that:

As you can see the model wants to keep a weak closed wave of low pressure along the font which would spin a little extra moisture down into the N/E. Also the temps look a notch colder. The RH values for the surface to the boundary layer look better (right there after 00z on the 27):

So it certainly appears possible that a high elevation fast grass schuss is possible Thursday morning.

Anyway…just wanted to put this out there and get people stoked up for winter! While this cold weather doesn’t look to last long, it’s nice to see it and we should appreciate what we are given.

Related Stuff:

  1. Weather Blather: Light Upper Elevation Snow possible
  2. September Turns? Check! (PNW Content)
  3. (UPDATED) In through the backdoor…upper elevation snow possible monday
  4. “Upslope” Snow on Tap for Friday Morning
  5. The Coastal Report: Storm brings snow to same places as last time (But this time a lot more)
  6. Stowe 3/1/08 – A few shots.

6 Comments

  1. Adrian
    wrote on September 21st, 2012 at 12:35 pm  
  2. Harvey44
    wrote on September 22nd, 2012 at 6:07 am  
    2

    It would be great to see some snow, hell I’m pumped that Lionel has posted on FIS/weather.

    Respond to this comment/comment thread
    • Greg
      wrote on September 22nd, 2012 at 9:36 am  
      3

      he’s waking up from a long summer’s nap

  3. bushman
    wrote on September 22nd, 2012 at 9:25 am  
    4

    Nice to see your forecasts again LH. Heading out for a run in the hills. 2 mos and counting…

    Respond to this comment/comment thread
  4. オークリー
    wrote on September 26th, 2012 at 5:38 am  
    5

    1975年、オークリーはJim Jannardとバスケットボールのスターのマイケル?ジョーダンから共に創設しました。1975年から1980年まで、Oakleyはずっと野山を越えて行くの競技用の自転車の保護の眼鏡を主流に生産するしました。長年の設計、生産と市場ニーズの経験を通って、それらがハイテクと知能結晶を運用して、一連の高性能の流行する眼鏡を創作しだします。いままでにOakleyは全世界にすでに600の特許と800の登録商標を持って、その眼鏡の製品はM-frame、 Zeros， E-Wires， Eye-Jackets， X-Metal，Overthetopなどのシリーズを含みます。Oakley眼鏡の全部のシリーズはすべて米国国内で生産して、組み立て、品質検査と包装します。Oakley眼鏡の品質が絶対にまちがいがないことを確保します。

    Respond to this comment/comment thread
  5. hollister stockholms
    wrote on October 24th, 2012 at 4:53 am  
    6

    Efter en tid blev det faktiska förfarandet i Abercrombie & Fitch sig vara extremt disciplinerad utöver konventionella. Detta blev viktigt eftersom många förfader var att plocka ut för att sätta på Hollister stockholms kläder. Det är normalt att få jackor i armstöd fram om armband, vid dokument och i vissa fall se att känsla stänger, Hollister stockholms som alltid skulle undersöka utöver autentisera grundläggande pappersarbete. Medan personer kommer inte längre glida på skyddar insidan kamp utöver kan det finnas olika tips att tänka autentisera någon och även upptäcka hans eller hennes familj enhet är Hollister sverige Storbritannien välkänd för närvarande. Talrika folk är entusiastiska över att söka Hollister gallerian försäljning. Hollister London butik har fördelen av en mängd olika kuponger rutin du väljer att kan behandla den sjuke dessutom kan de köpa något vill utnyttja examen.

    Respond to this comment/comment thread
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