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January/February Mid/Long Range Disco IV: A New Hope


stormtracker
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50 minutes ago, stormtracker said:

While we wait for the next fail suite.  It's safe

 

 

Sorry to interrupt pbp…. I spent that entire video silently belly laughing and cackling, as not to wake the kid, with tears down my face. I needed that, thanks boo. 

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@Ji that Feb 7 fail is the worst. We can’t even dismiss it with “pac puke”. There is an arctic 1045 high over top on Feb 5 after a week straight of epo ridge and flow off the arctic. 24 hours later a weak NS wave comes across that brings a mix of PC and MP air and that alone is enough to in 1 day rout an arctic airmass and totally wreck the thermals to Canada so bad that the next day a storm can take a perfect track with the next polar high coming across and it doesn’t matter. Do you know how unlikely it is to get snow if we need to perfectly time up a fresh arctic high exactly with a perfect track low?  How often does that ever happen. Ugh. Fuck this winter. Fuck whatever the hell is going on. 

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[mention=514]Ji[/mention] that Feb 7 fail is the worst. We can’t even dismiss it with “pac puke”. There is an arctic 1045 high over top on Feb 5 after a week straight of epo ridge and flow off the arctic. 24 hours later a weak NS wave comes across that brings a mix of PC and MP air and that alone is enough to in 1 day rout an arctic airmass and totally wreck the thermals to Canada so bad that the next day a storm can take a perfect track with the next polar high coming across and it doesn’t matter. Do you know how unlikely it is to get snow if we need to perfectly time up a fresh arctic high exactly with a perfect track low?  How often does that ever happen. Ugh. Fuck this winter. Fuck whatever the hell is going on. 

That was brutal 00z as expected. That day 9-10 event on the GFS had the Hp build in too late, but it’s absolutely horrible how nothing can go right. Praying for a March miracle, but at this rate just don’t see it happening. Some winters nothing goes right and this is def one of those


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Or the fact a TPV cuts across eastern Canada and the cold boundary never even gets that far south of us at any point!  Look at previous periods a tpv was there and how cold it was here.  There wetent many snowstorms in the analogs to day 8 when I checked yesterday but most were frigid periods with highs in the 20s or teens and single digit lows!   We don’t even really get that cold this time. 

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Both the gfs and cmc had more robust southern sw....both got squashed anyway

Yea, if you go back and look at the euro from a few nights ago it got all the TPV energy out ahead of the southern ULL. Now the models have energy rotating N of the southern vort, just no space for it to come north. Shame


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13 minutes ago, Heisy said:


Yea, if you go back and look at the euro from a few nights ago it got all the TPV energy out ahead of the southern ULL. Now the models have energy rotating N of the southern vort, just no space for it to come north. Shame


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more than enough time for it to trend held back/amped. wouldn't worry

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6 hours ago, psuhoffman said:

Or the fact a TPV cuts across eastern Canada and the cold boundary never even gets that far south of us at any point!  Look at previous periods a tpv was there and how cold it was here.  There wetent many snowstorms in the analogs to day 8 when I checked yesterday but most were frigid periods with highs in the 20s or teens and single digit lows!   We don’t even really get that cold this time. 

There was a bit more of a meridional component to it but guidance has incrementally backed off. Makes sense it would stay mostly across Canada once the -NAO look vanished.

What we are left with is flat, fast, west-east flow, with the NS vorticity strung out and separated from the (weak) vorticity impulses ejecting eastward out of the main energy in the SW. There has to be some sort of notable 'kink' in the flow to get moisture transport north into the cold(and dry) air.  We will see what happens when the main energy ejects east towards the end of the week- it looks like the Canadian trough/TPV digs more southward as it shifts east, but that might be problematic with timing and degree of cold in place.

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11 minutes ago, Ji said:
16 minutes ago, CAPE said:
0z EPS also suggests light snow across the area with the midweek wave Wed into Thursday.
The snow mean is 2.5 to 3.5" in our region through next Sunday.

Wow. Any big hits in there?

Like 6"+? A few for next weekend and even into early the following week.

The midweek deal looks like 1-2 or 2-4 on a good chunk of members- some right over us, others a bit south or north.

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