BBS: TELESC.NET.BR Assunto: HVYSNOW: Probabilistic Heavy Snow And Icing Discussion De: COD Weather Processor Data: Tue, 17 Mar 2026 18:30:14 +0000 ----------------------------------------------------------- FOUS11 KWBC 171830 QPFHSD Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 230 PM EDT Tue Mar 17 2026 Valid 00Z Wed Mar 18 2026 - 00Z Sat Mar 21 2026 ...Upper Midwest to the Northeast... The CONUS continues to enter a notably more tranquil pattern regarding heavy snow following the departure of the historic mid- March blizzard. Widespread heavy snow (accumulations greater than 4 inches) is not expected across the lower 48 through late Friday. However, the upper level pattern is forecast to remain amplified, with a strong ridge anchored over the western U.S., while a broad trough remains centered over the East. An amplified shortwave currently moving through the base of this eastern trough will lift out today, but the overall pattern will persist through the end of the week. Tonight into Wednesday, a low-amplitude shortwave sliding through the northern northern tier will trigger a round of warm advection precipitation. Expect a swath of light snow, with some freezing rain in spots, to develop from the upper Mississippi Valley to the western Great Lakes. WPC probabilities indicate minor impacts for most areas, with snow totals capped at 1-2 inches. Further downstream, lake effect snows will persist in the lee of Lake Ontario, with several more inches possible along a narrow band southeast of the lake before winds back to the south tomorrow. A more amplified shortwave is forecast to dive into the northern Great Lakes on Friday. However, accumulations are expected to light and largely confined to northern Michigan. The probability for significant icing across the country is less than 10%. 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]