Winter Storm Webinar Eric Ahasic NWS Twin Cities Tuesday, November - PowerPoint PPT Presentation

November 26-27 Winter Storm Webinar Eric Ahasic NWS Twin Cities Tuesday, November 26, 2019 9:00 AM

Current Headlines Winter Storm Warning expanded to cover most of the remaining watch area Winter Weather Advisory issued for a few counties in west-central Minnesota, where amounts look to be lower In effect beginning this evening and continue through tomorrow morning

Overview WHAT: Heavy snow, amounts up to 12” possible. Blowing snow developing late Tuesday night. WHERE: Greatest impacts expected from south central through east central Minnesota and western Wisconsin. WHEN: Snow develops in southwest/south central Minnesota after 5pm and spreads northeast into central Minnesota and western Wisconsin through midnight. The snow will gradually end from west to east Wednesday morning. IMPACTS: Holiday travel will be severely impacted.

Snowfall Forecast Amounts have been increased since yesterday’s briefing Now expecting widespread amounts of 8- 10” across the warning area. 10 - 12” amounts possible from Fairmont, through the metro, into NW WI Lowest confidence in amounts across west-central Minnesota, and the Eau Claire area

Heavy Snow Probability

Peak Wind Gusts Wind gusts of 40+ MPH are expected across southern Minnesota overnight into Wednesday morning Blowing /drifting snow and near- blizzard conditions are possible across open areas of western and southern Minnesota

Forecast Radar

Forecast Radar

Forecast Radar

Timing

Summary Heavy snow begins this evening and becomes heaviest overnight. Snow  tapers off through the morning tomorrow  Widespread amounts of 8- 10” expected, with amounts nearing 10 - 12” from south-central MN through the Twin Cities metro and NW WI. Wind gusts increasing to 40 mph will lead to areas of blowing/drifting  snow and possible near-blizzard conditions in open areas.  Holiday travel will be severely impacted beginning this evening.