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April 15-16 interior snow threat


ORH_wxman
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8 minutes ago, Typhoon Tip said:

Yo Mod power - can you del that other obs thread .. my bad!  Didn't know this one was fired up when I started that - thx

"

This is a good case study on the topic of marginality and the excruciating difficulty there is in deterministic weather forecasting when at or < single degree C through critical vertical sounding structures will parlay vastly different sensible impacts.

This might be a fun now-cast ride, because even with the ( recently debatable...) higher confidence Euro model only being 24 and 30 hours away, it's subtle movement variations across the last three cycles have meant < 1" to 15" impliations in Metrowest of Boston, and add or subtract as needed in how those runs might effect QPF and ptypes elsewhere.  

Agree with WIll that the locked confidence ( 70-80% being that lock numbers, if you will ..) probably Kevin to Hubb' up through EEN and the lower Greens over to the Whites, with perhaps a couple stripes near the river valleys out that way with temperature and local studies combining to shadow less.   11+ and now casting option for more...  guessing 600 foot is where the stack efficiency gets better out that way. As for Willamantic CT to BED ... 20 miles either side... I'm not frankly sure how else to call that zone other than to average between Mt Watchpoopy and the Bourne Bridge ...and let the chips fall where they may.  

Maybe some sort of lockable consensus will materialize here in the next couple cycles, but I almost suspect this giga-motions right through the ordeal due it the whole structure sort of 'floating' at mid levels as opposed to being very well anchored to surface fronts/inflection points.

Just wanna to take a moment to reflect that this mid April signal has been there for two weeks or more ... I personally let the subject go - because frankly...I hate and despise having it happen by this late in the spring. But, you now... lol - it's April. It's New England, and as they say in "Animal House,"  "Thank you, sire - may I please have another"   j/k, but it's interesting that despite all journeys since this signal for popped in the American telecon, here we are after all.  wow -

Presently 44 in Ayer - dropping nicely... Down 8 in the last 6 hours...   T-minus 4.5 deg before cat-paws commence

 

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15 minutes ago, ORH_wxman said:

21z HRRR was sick too. It was better for the 495 region though than the RAP which was more marginal there. 

Despite being somewhat out of range the great consistency the HRRR has showed speaks alot of volumes. When the HRRR is that consistent for that long of a period it can be very difficult to beat

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2 minutes ago, weatherwiz said:

Despite being somewhat out of range the great consistency the HRRR has showed speaks alot of volumes. When the HRRR is that consistent for that long of a period it can be very difficult to beat

The thing is, only slight changes could massive changes to sensible wx.

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1 hour ago, radarman said:

can't set expectations any lower than zero even in my interior location with 540'.   It's ALL upside baby

A lot of snow reaching the ground. How much accumulating...? 
 

Accumulation rate vs melting rate. Seems it would be easy enough to model this...but we’re left to guessing. 
 

I see temps broadly at surface 34-36 even at the height of it...
 

This is why NWS snowfall forecast maps and model qpf is still world’s apart at go time.

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Magic says they might reopen on Saturday... unfortunately, I think tomorrow would be the day...

Update 4/15: There is a major “winter” storm hitting Magic Thursday night through Friday. While Red Lift is already in off-season repair mode and can’t operate, if there is enough snow on lower mountain, we may open Green Chair to mid-mtn for Saturday April 17th, just for the heck of it. Since there is no base snow left, it would be all-natural, no grooming, whatever it is type stuff. There would be no lodge or take-out food or rentals etc. Just the T-BAR for refreshments, chili and dogs, and Tavern for a few bevies. Laid-back, take a few indie bonus runs. Tickets at the window would be $39 if it is a go. Won’t know that until late Friday as we see how much falls at base of Green Lift. Since we are closed for the 20/21 season, I guess this would be the unofficial earliest opening for the 21/22 season–IF it can happen. Stay tuned here.

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50 minutes ago, radarman said:

Magic says they might reopen on Saturday... unfortunately, I think tomorrow would be the day...

Update 4/15: There is a major “winter” storm hitting Magic Thursday night through Friday. While Red Lift is already in off-season repair mode and can’t operate, if there is enough snow on lower mountain, we may open Green Chair to mid-mtn for Saturday April 17th, just for the heck of it. Since there is no base snow left, it would be all-natural, no grooming, whatever it is type stuff. There would be no lodge or take-out food or rentals etc. Just the T-BAR for refreshments, chili and dogs, and Tavern for a few bevies. Laid-back, take a few indie bonus runs. Tickets at the window would be $39 if it is a go. Won’t know that until late Friday as we see how much falls at base of Green Lift. Since we are closed for the 20/21 season, I guess this would be the unofficial earliest opening for the 21/22 season–IF it can happen. Stay tuned here.

That's cool. 

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