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December 16-17, 2020 Winter Storm Obs/Nowcasting


WxUSAF
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I’m about to call it quits for another three hours before I continue HRRRcasting/wishcasting, but check out the current HP vs the modeled HP on this site:

https://www.spc.noaa.gov/exper/mesoanalysis/new/viewsector.php?sector=16&parm=pmsl&underlay=1&source=1

Currently shows a 1038mb HP just north of the NY/VT border. Forecast for this time period seems to have been for a 1034mb. Dunno what this means for cold scouring/LP position later, just an observation.

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1 hour ago, MillvilleWx said:

The HRRR has been consistent with the northern tier getting absolutely destroyed for several hrs today between 17-21z. Here's an example regional based sounding across the northern areas. This is a great way to get WSW criteria snow before any issues of mixing. 

1740455211_hrrr_2020121608_fh13_sounding_77.37W75.92W39.53N39_86N.thumb.png.875e5c1c8fe363efb4c9f8f8d592f3e8.png

very niiiiice

52 minutes ago, Ruin said:

I really hope that moisture field starts filling in more.

it will, please be patient. 

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3 minutes ago, Herb@MAWS said:

27.4 (current low) / 61 ,  30.32"

Local forecast calls for a high of 31 today in Columbia, so while on "the line", there's at least a chance to remain very icy today (as opposed to melty and wet).

Dang. I think we might lose you all in Columbia today to liquification ;)

Good luck @WxUSAF  @Scraff @osfan24 :lol:

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