BBS: TELESC.NET.BR Assunto: HVYSNOW: Probabilistic Heavy Snow And Icing Discussion De: COD Weather Processor Data: Wed, 25 Mar 2026 18:02:31 +0000 ----------------------------------------------------------- FOUS11 KWBC 251802 QPFHSD Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 202 PM EDT Wed Mar 25 2026 Valid 00Z Thu Mar 26 2026 - 00Z Sun Mar 29 2026 ...Washington Cascades to Northern Rockies... Day 1... Shortwave trough and associated cold front crosses the Cascades by this evening with snow rates declining as snow levels fall from 3000ft to 1000ft. Day 1 snow probs for >4" are generally 30-60% above about 3500ft. Additional snow shifts east tonight through Thursday over the Lewis Range in Glacier NP, the Bitterroots, Red Lodge portion of the northern Absarokas in MT and the Bighorns. Day 1 snow probs are 30-50% across these areas of terrain. ...Northern Maine... Day 1... Weak low pressure over northern MI this afternoon strengthens as it shifts across Maine on Thursday. WAA ahead of the low brings snow to Maine late tonight/Thursday morning. Day 1 snow probs for >4" are limited to far northern NH and the highest elevations and northern border of Maine and generally 20-40%. ...Northern Plains and Upper Midwest... Days 1 and 3... A tight baroclinic zone develops tonight in zonal flow as low pressure over the central Plains is met by strong high pressure shifting from the Canadian Prairies. A wintry mix with generally light rates develops along this boundary. Day 1 ice probs for >0.01" ice are 30-60% over eastern ND and across northern WI to Upper MI, mainly falling late tonight through Thursday morning. Little snow accum is expected. High pressure shifting from the northern Plains to the Midwest Friday through Saturday promotes some LES to develop off Lake Superior on NW flow. Day 3 snow probs for >4" are 30-50% over the eastern U.P. The chances for significant icing across the CONUS is less than 10%. Jackson $$ = = = 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]