Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 212 PM EST Sat Feb 26 2022 Valid 00Z Sun Feb 27 2022 - 00Z Wed Mar 02 2022 ...Northeast... Day 1... A strong arctic front sweeping through the Northeast Sunday is expected to bring occasional snow squalls along and behind its boundary, most favored over the North County in NY and much of central to northern New England. Light/minor accumulations generally under a couple of inches but the intensity and combination of strong winds will make for hazardous to difficult driving conditions potentially. The latest Key Messages have been updated and are listed below. ...Pacific Northwest... Days 1-3... An impressive atmospheric river event setting up for the Pacific Northwest over the next 3 days will bring widespread precipitation to the region. An initial round of precipitation arrives during the day 1 period but the wettest day arrives on Monday associated with PW anomalies up to +3 sigma are likely followed by a continued wet pattern for day 3. All told, the 3-day totals will exceed several inches with some isolated amounts 8-10" possible. This system is relatively warm so snow levels will be quite high (a bit lower on day 1), particularly for day 2 with the heaviest precipitation so the greatest snow totals are expected for the high peaks of the WA Cascades and the peak of the Olympics. Some higher snow totals do reach inland across northern Idaho and northwest Montana day 2 into day 3. The latest WPC probabilities are clearly high for 6 inches or more for the WA Cascades and even reach moderate to locally high for portions of the northern Rockies. Taylor Key Messages: - A strong cold front will sweep through the Northeast Sunday afternoon and evening. - Snow squalls are expected to move from northwest to southeast along and behind the front across northern portions of New York and New England. - Intense but brief snowfall up to 1 inch per hour and wind gusts over 40 mph will be possible with these snow squalls. Visibility can quickly drop and create hazardous travel conditions when combined with new snow on the roads. - Any wet roadways will quickly freeze back over as temperatures drop into the teens and single digits Sunday night.