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March 3-4, 2023 | MW/GL Winter Storm


MesoscaleBanding

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1 minute ago, Grace said:

0z Euro & 12z CMC showing almost zero SE ridge influence.

12z UKMET is bringing more a a ridge influence versus 0z. 

trend-ukmet-2023022512-f132.500h_anom.conus.gif.195cca48fc8e6fce52fb47f1951258c3.gif

 

BSR suggests ridge will play a roll:

Screenshot_20230225-111512_Chrome.thumb.jpg.45303a5d662064e1493823cd27bc4413.jpgScreenshot_20230225-111530_Chrome.thumb.jpg.753bd79fdc6bea7c87de93ade8d07b7b.jpg

It's flatter out front though, and the shortwave in MN looks like it wants to slide east with that trof in SE Canada (instead of phasing like the GFS insists).  A closed low might drift more easterly. 

 Timing of any phase will be tricky, plus, downstream is still evolving. 

  Fun to have a model battle though. ECMWF will settle everything in and hour or so. 🤣

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It's hard to imagine a sub 980 low thats gets amped and stays amped that far SE. Historically something that strong will allllwaayysss cut. Now we've see several that are SE and amped as time goes on, but rarely be that amped in the early stages and stay se

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6 minutes ago, MesoscaleBanding said:

Pics or it didn't happen🤣

 

When individual precip types & snow amounts load I'll post. Some are absolutely ridiculous, like multiple 970-975mb in Central Tenn or Kentucky.

Here's the EPS mean & members for now. 

TN Valley track then coastal transfer. Mean snow is overlapping Ohio River to I-70. 

floop-epsens-2023022512.sfcmslp-meanmem.conus.gif.a09f34e5569cd7c68a12e35d88f1e1eb.gif

 

Certainly more phasing than 0z

trend-epsens-2023022512-f144.500h_anom-mean.conus.gif.f0109ec05d9e5b6a0730fb80d3cda500.gif

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