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Wintry Feb 17-19 Smastsmasher Snow/Ice

Fwiw, the 18z 3km NAM is showing a warm nose of ~12°C at KGSO tomorrow morning (max T is 54°F). If it verifies, that would be a record strong warm nose for all 65 KGSO freezing rain soundings I've looked at since 1976. Normally, the warm nose for ZR at KGSO peaks ~+4-6°C, even anything above +8°C is somewhat unusual in its own right, much less 10C lol.

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The strongest warm nose at KGSO during a ZR event (non-freezing drizzle) I found was +11.4°C at 868mb (18z Feb 11 1994) followed closely by +11.2°C at 850mb (12z Feb 11 1994)

Fwiw, GSO ended up getting ~0.33" of ice in that storm, sounds about right here...
 
Fwiw, the 18z 3km NAM is showing a warm nose of ~12°C at KGSO tomorrow morning (max T is 54°F). If it verifies, that would be a record strong warm nose for all 65 KGSO freezing rain soundings I've looked at since 1976. Normally, the warm nose for ZR at KGSO peaks ~+4-6°C, even anything above +8°C is somewhat unusual in its own right, much less 10C lol.

View attachment 75984
What do you think is causing this strong of a warm nose... this doesn’t look like that amped up of a system.
 
What do you think is causing this strong of a warm nose... this doesn’t look like that amped up of a system.

There's certainly a sprinkling of the warming background climate + greater moisture fluxes (which translates to greater latent heat release in the mid-levels) that's arguably adding a bit extra to this storm, but it seems synoptically that we just have a very anomalous wave pattern in the CONUS w/ record-cold over the central US and MS valley being followed downstream by a ridge over the SE US. I'd argue that at least 90-95%+ of this is happening due to the weather, the other component probably has some climate influence that may not and probably is not detectable outside the realm of observational and sampling errors, etc
 
Just got an alert from my school we’re closed tomorrow. And looks like some other schools across the northern upstate are starting to close.
 
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