BBS: TELESC.NET.BR Assunto: HVYSNOW: Probabilistic Heavy Snow And Icing Discussion De: COD Weather Processor Data: Sat, 21 Mar 2026 19:15:22 +0000 ----------------------------------------------------------- FOUS11 KWBC 211915 QPFHSD Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 315 PM EDT Sat Mar 21 2026 Valid 00Z Sun Mar 22 2026 - 00Z Wed Mar 25 2026 ...Northeast... Days 1-2... A clipper system will track across the Northeast late today through Sunday with snow spreading into northern New York this evening and northern New England overnight. While warm advection will be a principle driver for the developing precipitation, it combined with the high angle will support a changeover to rain across much of Upstate New York and southern New England on Sunday. In contrast, the higher elevations of the Adirondacks and much of northern New England are expected to remain cold enough for snow to remain the primary precipitation type before the system exits Sunday night. Terrain-enchanced lifting along with cooler temperatures will support heavier snow totals across portions of the Adirondacks, Green, and White mountains -- with several inches likely, as indicated by the greater than 50 percent WPC probabilities for accumulations over 8 inches. While lesser amounts are more likely across the lower elevations, guidance indicates that low-to-mid level frontogenesis may help contribute to banded heavier snowfall rates (0.5-1 in/hr) that may be sufficient enough to support a swath of heavier totals from east of the western Maine mountains to Down East Maine on Sunday. Higher probabilities for amounts over 4 inches have expanded across this area and are now greater than 70 percent across a broader area. Additionally, probabilities for totals over 8 inches have increased in this area also, with some greater than 50 percent probabilities near the Maine coast. Pereira $$ = = = To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.28-Linux * Origin: Capitol City Online (1:2320/107) ----------------------------------------------------------- [Voltar]