[Emwin_conference] Re: NWS Denver/Boulder Conference Call for Powerful Spring (Winter) Storm

Here are the talking points from the 10:30 AM conference call. Thank you all for attending. Spring Storm Talking Points 04/10/2019 10:30 AM - Strong spring storm is moving into Colorado. Temperatures are a little cooler than originally forecast, with some snow already mixed in with the rain west of I-25. Rain will become widespread and heavier, and quickly change to a heavy, wet, wind-driven snow. Blizzard conditions and whiteouts expected East of I-25 and across Palmer Divide. Effects will continue overnight Wednesday and into Thursday morning. - Precipitation will start as rain in lower elevations (already mixed with snow already west of I-25) with a fairly rapid changeover to all snow; - 1-2 PM Fort Collins/Boulder/Denver/Greeley - 1-2 PM Palmer Divide - 2-4 PM Northeast Plains - Strong winds and snow will likely produce scattered power outages, especially east of I-25 - Impacts: Afternoon/evening commute on Wednesday will be hazardous/dangerous with heavy, wet, wind-driven snow. - Remains dangerous over the eastern plains & Palmer Divide through Thursday AM, should see improvement Denver to Fort Collins late tonight through early Thursday morning. - Significant impacts at DIA due to strong winds, low visibility, and blowing snow. - Scattered power outages - Harsh transition for livestock - shelter if possible - Road temperatures are starting out warm, some initial melting/slush - Rapid cooling will result in icy roads for the late evening commute, faster freeze-up where snow is blowing. Lows in the lower 20s tonight with icy/snow packed roads. - Confidence - HIGH for winds (40-55 mph gusts east of I-25, 25-40 mph west of I-25) - HIGH for snow amounts in the mountains, foothills, Palmer Divide stretching to the northeast plains east of Akron-Sterling line - MODERATE for snow amounts I-25 corridor Wednesday afternoon into the afternoon commute. Timing of changeover and exact storm track are factors. - Snowfall Amounts: Heavy at times - Mountains & Foothills: 6-14 inches - Urban Corridor and Eastern Plains: 4-10 inches, heaviest favoring south metro Denver and Palmer Divide east/northeast toward Akron & Julesburg. - Amounts will vary - banded precipitation likely/heavy snow 2” per hour - Heaviest snow time frames are 3 PM - 9 PM for the mountains & I-25 Corridor, 6 PM - 3 AM for the eastern CO Plains. - Ending - I-25 Urban Corridor Denver - Fort Collins, tapers off late Wednesday night to Thursday AM - Eastern Plains: Snow tapers off Thursday morning, but strong winds and blowing snow through the day - Mountains: Light snow through Thursday On Tue, Apr 9, 2019 at 7:43 PM David Barjenbruch - NOAA Federal < david.barjenbruch(a)noaa.gov&gt; wrote: -- David Barjenbruch National Weather Service Boulder, CO 80305 303-494-3210