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Here it comes! The Annual Spring Blizzard! If it is true to form, it will be heavy, wet snow.-Annual Spring Blizzard March 23-26th-Confidence is unusually high that a large winter storm to affect a large portion of the region starting six days from now and lasting for multiple days after. Operational and ensemble guidance continues to show a strong surface low to eject somewhere out of Colorado into the region. A northerly track will keep the heaviest snow north of I-90, but a southerly track will bring the heaviest snow down to I-80. This system will have a broad plume of moisture, so a farther south track will still have accumulations well north of I-90.What we know:-Plenty of cold air will be in place.-There is a lot of moisture to work with.-This will be a long-lasting system.-Significant travel impacts are possible.What we don't know:-The exact timing.-The exact track of the surface low.-Where the heaviest snow will fall.-Exact accumulations are highly unknown.Details will become clearer through the week and we will have daily updates as this system has the potential to be significant and large.