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Discussion-OBS slippery plowable moderate to high impact snowstorm with many delays near I95 and inland btwn 10AM Sun 1/19-4AM Mon Jan 20. R/S line uncertain near and east of I95 - parts of LI may be limited snowfall of around 1"?


wdrag
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3 minutes ago, Rjay said:

Kuchera sucks.  If you need to post a snow map just post 10:1 and you can reasonably figure out your total based on other parameters, soundings and experience. 

There's a lot of debate among meteorologists about it. At least Kuchera takes something into account while 10:1 takes nothing into account. The Kuchera maps are far from perfect but they help in situations in which you're going to be better or worse than 10:1 ratio. 

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Just now, winterwx21 said:

There's a lot of debate amount meteorologists about it. At least Kuchera takes something into account while 10:1 takes nothing into account. The Kuchera maps are far from perfect but they help in situations in which you're going to be better or worse than 10:1 ratio. 

Yea but you can look at the other parameters or soundings and use your experience from tracking these storms for years to figure that stuff out. 

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1 minute ago, Rjay said:

Yea but you can look at the other parameters or soundings and use your experience from tracking these storms for years to figure that stuff out. 

Kuchera almost always over inflates. Rarely do you see it accurately predict under 10:1. 

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Just now, Rjay said:

Yea but you can look at the other parameters or soundings and use your experience from tracking these storms for years to figure that stuff out. 

Yeah that's true. That's the best thing to do, but I don't see a problem with posting Kuchera maps since they help at least somewhat. For many of our events they've been closer to reality when they've showed very good or very poor snow ratios. 

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It's a bit troublesome to me that the NAM is so weak with development. I think it's because it's quite a bit less amped up than even the 12z GFS. Usually in this type of setup the NAM would be showing a coastal hugger. It's completely on its own and the rest of the modeling has been fairly consistent so I'm largely tossing it, but it's still possible that things don't get going quickly enough.

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