BBS: TELESC.NET.BR Assunto: HVYSNOW: Probabilistic Heavy Snow And Icing Discussion De: COD Weather Processor Data: Sat, 18 Apr 2026 19:32:32 +0000 ----------------------------------------------------------- FOUS11 KWBC 181932 QPFHSD Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 332 PM EDT Sat Apr 18 2026 Valid 00Z Sun Apr 19 2026 - 00Z Wed Apr 22 2026 ...Upstate New York/Northern New England... Days 1/2... A strong cold front currently over Ohio shifts into western NY tonight and crosses the Northeast Sunday. The associated mid-level trough axis is over Lake Michigan and will cross Upstate NY Sunday. Lift from the mid-level trough approach as well as sfc low pressure development Sunday along the NJ to eastern New England coasts will aid some precip on the cool side of the front with snow at higher elevations in interior Northeast. Day 1.5 snow probs for >4" are 30-60% for the higher Adirondacks, Greens, Whites, and along the NH/Maine border with Quebec. Included in this timeframe is additional upslope snow in this terrain from NW flow in the wake of the front Sunday night. ...California... Day 3... Low pressure developing well of the PacNW coast (around 135W) deepens as it drifts SSE to off far northern CA through Monday. The low then pivots east to northern CA through Tuesday. Decent moisture arrives in a plume ahead of the low with snow levels generally 6000-7000ft that then drop as low as 5500ft Tuesday under height falls. Day 3 snow probs for >6" are 40-70% for the higher Sierra nevada as well as Mt Lassen, Shasta, and the Trinity Alps. Snow continues in earnest through Tuesday night as the low tracks over the Sierra Nevada. The probability for significant freezing rain exceeding 0.1 inches across the CONUS is less than 10 percent. 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]