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Happy Birthday Old Man Winter storm obs


Ginx snewx
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1 minute ago, HIPPYVALLEY said:

Wut? Absolutely crushing and best returns still on Greenfield’s doorstep.

 

DB4E8883-28DB-492F-9DB7-0AE365813A64.jpeg

Love that image.

You can see the small narrow downslope sleet pockets on the west side of some of those ridges where the higher reflectivity returns are amid the larger shield of heavy precip.

That's probably an extremely marginal situation aloft where upslope/downslope on easterly flow has just enough effect to turn some narrow north/south pockets to sleet.

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1 minute ago, powderfreak said:

Love that image.

You can see the small narrow downslope sleet pockets on the west side of some of those ridges where the higher reflectivity returns are amid the larger shield of heavy precip.

That's probably an extremely marginal situation aloft where upslope/downslope on easterly flow has just enough effect to turn some narrow north/south pockets to sleet.

Some models showed those pockets.

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1 minute ago, dendrite said:

Some of that must be brightbanding aloft from a marginal layer.

So cool.  Look at the Mass Pike/NY Thruway there... if you are driving from like Beckett to just past the NY state line, it literally is likely snowing when you are driving uphill on the east side of the hill and then sleeting on the backside when you are driving down into the valley on the other side.

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4 minutes ago, powderfreak said:

Something I've always wondered... maybe someone can explain it.... but how is there still such a temp/dew depression despite such heavy prolonged precipitation?

ALB hasn't had anything above 85% RH and is 25/21 despite 1/8sm snow and two tenths of QPF last hour?  I would assume that type of precip rate for hours now would near saturated at like 24/24. 

Think you're dealing with RH w/ respect to ice vs water and how the sensors handle it. A brutally cold rad night isn't going to get you 100% RH. You'll start getting diamond dust with under 80% RH from the ASOS at like -35C or something.

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