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January Storm Term Threat Discussions (Day 3 - Day 7)


WxUSAF
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  On 1/27/2021 at 4:57 AM, psuhoffman said:

Yes but if the further north primary idea of the gfs/Cmc is correct it’s a split threat. WAA wave gets suppressed coastal forms late. We’re stuck in between.  Always something waiting to steal out snow man. 

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So we need the suppression on the primary to get it just south enough to form when we need it?

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  On 1/27/2021 at 5:00 AM, Ji said:

the precip(not the precip type) has fully updated. Lots of greeen over us

https://www.tropicaltidbits.com/analysis/models/?model=gem&region=neus&pkg=mslp_pcpn&runtime=2021012700&fh=24

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Thanks.  I only look at weenie maps that show blue.  
 

Looks like DC flirts with mixing/rain during at least part of the storm.  

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  On 1/27/2021 at 4:54 AM, Ji said:

got it---still with that track--threre isnt much CCB on the model. is it cause LP isnt deep enough?

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Messy transfer. The euro amplified the h5 low and rolls it through with a clean transfer and phase with the secondary. The other guidance gets to the Ohio valley then gets messy. The upper level low broadens and starts to pinwheel around and the secondary can’t really amplify and develop a nice clean closed circulation to get that ccb going. 

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