Light snow fades; Major snowfall is expected north of the Twin Cities on Sunday

Light snow fades; Major snowfall is expected north of the Twin Cities on Sunday

Let’s call it an entry-level snowfall.

Thursday’s fine, foggy drizzle left a sweet coating on roads around the Twin Cities and much of Minnesota. It was just enough to rehabilitate a few roads, intersections, ramps and bridges across the state. The band of snow slides east of Minnesota early Friday.

Here are some select very light snowfall amounts from the minor league system on Thursday:

  • Payne, St. Louis County, 1 inch

  • Chisholm, St. Louis County, nine-tenths of an inch

  • Looters, Cass County, nine-tenths of an inch

  • Little Falls, Morrison County, eight-tenths of an inch

  • Grand Forks, ND, half an inch

  • Victoria, Carver County, half an inch

We’re enjoying a quiet Friday in the Upper Midwest. A mix of sun and clouds will divide the sky. The highs are 20 degrees in the south and in the teens in the north.

High temperatures are forecast on Friday

High temperatures are forecast on Friday

National Oceanic and Atmospheric Administration

Sunday Clipper

Our Weekend Clipper is a more organized system. Snow will begin falling in the Red River Valley as early as midday Saturday. The snow will spread eastward through Saturday and probably won’t reach the Twin Cities area until the early hours of Sunday morning around midnight or after midnight.

The bulk of the snow accumulation will occur Sunday morning. Snow will decrease from west to east Sunday afternoon.

The latest model run from the National Oceanic and Atmospheric Administration (Thursday 6 p.m.) shows the likely development of the snow zone this weekend. The following loop runs between Saturday lunchtime and Sunday 6 p.m.

NOAA GFS model

Global Forecast System model between Saturday lunchtime and Sunday 6 p.m

NOAA, via Tropical Tidbits

Thursday’s model runs show a more northerly trend for Sunday’s surface low. That would mean heavier snowfall north of the Twin Cites on Sunday, with the Twin Cities on the less snowy edge.

Model snowfall output from NOAA’s Global Forecast System suggests a range of more than 6 inches is possible across the north. Much of central Minnesota would gain 3 to 6 inches under this route scenario.

The Twin Cities would likely be on the edge of the 1 to 2 inch snowfall zone, with less snow south of the Twin Cities.

NOAA GFS snowfall output

Global Forecast System snowfall output through Sunday.

NOAA, via Pivotal Weather

It’s still early, so route forecasts are subject to change. As the track shifts south again, the greater Twin Cities could see heavier snowfall.

Stay tuned.

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