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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, HeadInTheClouds said:

Every model has trended closer to coast with more precip and the RGEM/CMC has been consistent for days with it's track. Just because the Euro is farther east doesn't make it right. 

All we can say now it the cmc is on the western side of the goal post while the euro is the eastern side. 

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5 minutes ago, brooklynwx99 said:

EPS is going to be NW of the OP. vort actually looks a bit better than it did at 06z

IMO if this busts it busts OTS and doesn’t become an inland runner. I think rain is off the table, I hate to disagree with Forky and Bluewave but I think it’s either a big snowstorm or a minor 1-2, 1-3 event as the options 

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22 minutes ago, weatherpruf said:

" It will come down to nowcasting." There, i saved you all the trouble of having to mention this again. 

I understand the humor.  My deadline for a general forecast is 48 hours before the start of any precipitation.  If you need more time closer than that, you may as well nowcast.   My forecasting days are shot.  But as Jeff Berradelli would say, "The devil is in the details".  I interpret this to mean between all the models and general synoptic setup, the clues are there to make an accurate forecast.  Sometimes we ignore a simple thing like the positioning of the high pressure system or mid level temperatures...

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10 minutes ago, bluewave said:

I agree with you. For an Arctic wave to be an inland runner like 1-17-94 there has to be enough spacing between the lows. The seasonal pattern this year and in recent years has been too many lows close together in the fast Northern Stream of the Pacific Jet. So if there is a risk my guess is that it will be too much suppression like the OP Euro with lows very close together and not rain like the CMC has. I mentioned that the CMC was the outlier in the 12z runs today. 

Great post 

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  • wdrag changed the title to 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"?

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