BBS: TELESC.NET.BR Assunto: HVYSNOW: Probabilistic Heavy Snow And Icing Discussion De: COD Weather Processor Data: Sat, 28 Mar 2026 06:47:28 +0000 ----------------------------------------------------------- FOUS11 KWBC 280647 QPFHSD Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 247 AM EDT Sat Mar 28 2026 Valid 12Z Sat Mar 28 2026 - 12Z Tue Mar 31 2026 ...Pacific Northwest/Northern Rockies... Days 2-3... A closed low south of the Gulf of Alaska will continue southeastward today and slowly weaken into a positively-tilted upper trough as its cold front moves through WA/OR on Sunday. Despite some injection of mid-latitude Pacific moisture, the system will be progressive and QPF will be limited. Snow levels will be on the lower side -- 2500-4000ft in the Cascades before lowering further behind the front to 1500-3000ft. This will bring some snow to the passes and probabilities for at least 6 inches are at least 50% above about 3000ft or so for the northern Cascades. Farther east, moisture will stream into the northern Rockies and eventually into northern/northwestern Wyoming Sunday evening through Monday and overnight into very early Tuesday, ending from west/northwest to east/southeast. Amounts will again be generally light, with probabilities of at least 6 inches at least 50% above about 5000ft in ID/MT but above 9000-10,000ft in WY. Front end of the precip shield advancing across the Northern Plains could support some light icing over northern ND early Monday with generally a few hundredths of an inch possible. The probability of significant icing across the CONUS for days 1-3 is less than 10%. Fracasso $$ = = = 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]