BBS: TELESC.NET.BR Assunto: HVYSNOW: Probabilistic Heavy Snow And Icing Discussion De: COD Weather Processor Data: Thu, 19 Mar 2026 06:11:39 +0000 ----------------------------------------------------------- FOUS11 KWBC 190611 QPFHSD Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 211 AM EDT Thu Mar 19 2026 Valid 12Z Thu Mar 19 2026 - 12Z Sun Mar 22 2026 ...Upper Great Lakes to the Northeast... Days 1-3... Thanks to a dome of upper-level ridging firmly entrenched over the West and northerly low-level winds over the Mid-South all but cutting off Gulf moisture, a quiet pattern with respect to heavy snow and icing will continue. The lone cases where light snow accumulations are anticipated are across the Upper Great Lakes and Northeast as Canadian clipper systems race across the southern tier of the country and occasional pass through. A clipper over Ontario will direct a warm front through the Northeast with minor snowfall totals (generally a coating-2", with local 2-3" in the Adirondacks and White Mountains) through Thursday. As that system exits over Atlantic Canada, a more organized clipper will be tracking towards Lake Superior. Light snow will ensue along the warm front over the U.P. of MI, Thursday night and into Friday AM, then race over northern NY and northern New England Friday afternoon and evening. There are some hints in AI guidance (EC-AIFS most notably) that the clipper could strengthen by the time it reaches Downeast Maine early Saturday morning. This could lead to locally heavier snowfall in the Greens, Whites, and northern ME on Saturday. At the moment, WPC probabilities shows low chances (10-30%) chances for snowfall >4" in northern ME with most snowfall generally under 3". But this will be closely monitored given the generally good performance of the EC-AIFS for much of the cold season. The chances for significant icing across the CONUS is less than 10 percent. Mullinax $$ = = = 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]