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Extreme Cold, Snow & Sleet: SECS 1/25 - 1/26


TriPol
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What I really meant was that model forecasted long duration events most of the time don't come to fruition.  I see them all the time advertise in models and yes, some do happen but most of the time it's not as long as the model is showing.  I love long, duration events.  Outside of total snowfall that is my second desire out of a snowstorm.  If we get a 24+ our snowstorm out of this one will be super ecstatic.

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38 minutes ago, TriPol said:

Lee Goldberg said a higher chance of 12+ inches more North and West. I don't see that at all.

If a more amped situation verifies than what we see now, you're going mix or changeover to sleet and rain and have about 4-6" less than an all snow solution would give you. And there are still 3 days of modeling prior to the onset of the storm. Normally solutions closer in time do get a little more amped but not always. We'll see. But I can totally understand where Lee Goldberg was coming from.

WX/PT

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This is the kind of NAM sounding that makes me nervous about sleet on Sunday. It's valid at 12z Sunday morning about 50 miles NW of Richmond, VA.

Super cold surface & 850mb temps with 700mb temps -2C or -3C and the ptype is SLEET because of a pronounced warm layer near 750mb. The surface high can't save us from that. If the upper levels are amped and the mid-level lows which will track to our west are slow to weaken, our sounding could end up looking like that on Sunday afternoon/evening. That would be a bummer considering the depth of saturation through that column... would be a lot of QPF wasted as sleet.

1496413846_Screenshot2026-01-22at00-27-24ModelsNAMPivotalWeather.thumb.jpg.0c164cb1fee69fd2640e5077baa480db.jpg

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  • TriPol changed the title to Extreme Cold, Snow & Sleet: SECS 1/25 - 1/26

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