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CAD storms thread.


dsaur

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For anyone interested in Asheville, new NAM and RAP support a chilly rain event with temperatures 34-36 degrees most of the day tomorrow. Neither model ever takes our surface temperature below freezing.

This makes sense to me. The CAD regime is actually pretty moist compared to other setups, with current dewpoints still in the mid 30s all the way to central VA. To boot, winds are pretty light as well, so there isn't much surface cold advection. This is an instance where you just have to be closer to the cold air source, rather than relying on CAD dynamics, to generate much wintry precip.

However, VA and far northern NC should still be sufficiently cold for a freezing rain event. New RAP is incredibly dry, so might be a challenge to reach "warning" criteria even in these areas. Certainly advisory-level though, unless the models barf and the atmosphere surprises us.

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Disc, Pack that's 3 runs in a row now of annihilation lol this cannot be good I'm laughing now until all hell breaks loose

 

Yep, If I were you guys up in that area, I would be preparing for power to be out for a extended period of time. I wouldn't mind seeing a little glazing down here, but not the crippling ice storm you are about to get. Good luck and post your pics and obvs......

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Per Robert, which I find this interesting as this is the opposite of what I thought would be the case because of the large warm nose, WAA, ect, but..

 

Me: Robert, do you think the Boone area will see Ice Storm Warning criteria ice+, or is that warm nose going to be pesky?

 

Robert: For Boone, I'm leaning toward Ice. It will take until around 8 am to go to 32, then temps stop around 29 or 30 for most the day with strong classic damming. the amount of moisture is a question, but not the temps. Watch radars tomorrow.

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http://68.226.77.253/text/NAMSFC/NAM_kgso.txt

Any idea why this is showing thundersleet for GSO?  Also has more cold air for GSO.  Gets down to 31 at 1pm.

TW

I noticed that the high was a little stronger and positioned a little better this run. Have not looked at any soundings to see how deep the cold layer is forecasted to be.

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