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February 10-12, 2021 Winter Event


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4 minutes ago, baltimoreguy said:

Weren’t you calling for 12 or 18” last weekend?

Nope, you're thinking of the earlier storm and like with models, error then does not imply error now. Sunday 7th snow potential was botched by just about everybody as I recall. All I'm saying is, suppression seems overdone on Euro, there isn't that much further push south with this Midwest high weakening and being pulled across to your north although obviously the fronts will sag some distance further south before settling for the wave to run along. 

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10 minutes ago, Roger Smith said:

I feel somewhat more optimistic given that the cold high in Iowa is fading while the parent high, a monster 1062 mb center up in the NWT, is slowly pushing south. That should stop the southward push on the wave train and when I look at the RGEM output the precip shield looks realistic but the thickness and thermal profiles look unrealistic (too far north) which would argue for more of the depicted precip to fall as snow. Hence an early call of 4-7" for the I-95, max could be a bit south of the DC-BWI-ILG corridor at 5-9" but I don't think it would be pushed as far south as RIC. 

Your always optimistic bro.

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5 minutes ago, WinterWxLuvr said:

That’s a very interesting map. It is showing 8-10” of snow in portions of Ky that don’t have a single flake of snow forecast for the next three days. That is very interesting.

I think I’ve read somewhere that storm vista snow maps count everything falling at 32 and below snow so it catches a ton of sleet in those maps.

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19 minutes ago, WinterWxLuvr said:

That’s a very interesting map. It is showing 8-10” of snow in portions of Ky that don’t have a single flake of snow forecast for the next three days. That is very interesting.

 

16 minutes ago, WinterWxLuvr said:

In fact that map has 10” of snow in places that aren’t even being forecast to have any frozen at all. I don’t think the NWS forecasters down there have lost their minds. There is a reason that the euro is not being weighed into these forecasts.

I have deduced that those stormvista max res EPS snowfall maps are often so much higher then wxbell on the southern edge of snowfall zones is because it counts freezing rain as 10-1 snowfall.  People didn't notice but last year the wxbell maps stopped doing that when they updated and that is why the ensemble means on wxbell arent as crazy stupid ridiculous high as they used to be.  

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Just now, psuhoffman said:

 

I have deduced that those stormvista max res EPS snowfall maps are often so much higher then wxbell on the southern edge of snowfall zones is because it counts freezing rain as 10-1 snowfall.  People didn't notice but last year the wxbell maps stopped doing that when they updated and that is why the ensemble means on wxbell arent as crazy stupid ridiculous high as they used to be.  

That has to be the explanation. 

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6 minutes ago, WinterWxLuvr said:

You are placing a lot of faith in one model

huh?  When did I make any prediction?  There was a post that the EPS was less suppressive.  I made the observation that it trended south with both waves.  It did.  Someone kind of questioned that so I posted proof.  I made no prediction at all.  

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