Monday, November 21, 2016

Sloppy Tuesday PM-Wednesday ahead with a wet snowfall which could mix with rain/drizzle at times near Lake Superior

/Issued 4:31 PM CST, Monday, November 21, 2016/


Purple shaded area=Winter Weather Advisory, more information at this link

The next winter weather event moves into the Twin Ports either Tuesday afternoon or Tuesday evening.


No changes in my preliminary snowfall forecast for this next event - Most of the accumulating snow should fall Tuesday evening into Wednesday morning.

Tonight's low temperature forecast.  Source:

Tuesday's high temperature forecast.  Source:

Weather Summary for northeast Minnesota and northwest Wisconsin

A pretty nice late November day with quite a bit of sunshine outside of the North Shore of Lake Superior where lake effect clouds were found for a part of the day.  Highs today near to slightly below average in the upper 20s to lower 30s with east or southeast winds at 5 to 15 mph.

Forecast Discussion for northeast Minnesota and northwest Wisconsin

.Short Term Forecast...

Tonight (November 21)

Partly or mostly cloudy skies this evening will turn mostly cloudy later in the night.  Could be some areas of light snow or mixed precipitation especially after Midnight over western areas.  Lows tonight in the 20s with single digits or teens possible in far northeast Minnesota.  Winds will be out of the east or southeast at 5 to 15 mph.

Tuesday (November 22)

Low pressure stretching from the northern Plains to the central Plains will advance slowly toward the east on Tuesday -- This system is expected to bring widespread precipitation to the Northland especially from Tuesday afternoon through Tuesday night.

Temperatures aloft although marginal do look cold enough to support frozen precipitation, however, surface temperatures will be near the freezing mark, possibly even a degree or two above freezing on Tuesday.  What this means is that will probably be dealing with a mixture of precipitation types on Tuesday with wet snow, sleet and even some rain possible at times.  Note:  Precipitation that falls during the day looks fairly light.

Somewhat heavier precipitation could move into portions of the Northland Tuesday night, by then the majority of what falls looks to be in the form of snow.

Highs on Tuesday will be in the 30s with lows Tuesday night close to 30 degrees.  Winds on Tuesday will be out of the east at 10 to 15 mph.

.Extended Forecast...

Wednesday (November 23)

Low pressure will continue to lift slowly toward the east/northeast as it tracks out of northern Missouri and into northeastern Illinois by Wednesday evening -- This low combined with a surface trough extending NW of the low will continue to generate some snow across the Northland on Wednesday.  Note:  Snow could mix with rain or drizzle closer to Lake Superior as milder air moves off the lake.

Highs on Wednesday will be in the 30s with lows Wednesday night in the upper 20s to lower 30s.

Thanksgiving (November 24)

Lingering flurries or snow showers are possible in parts of the Northland but overall no major weather issues expected on Thursday.  Highs will be in the 30s.

Forecast for Duluth and Superior

.Tonight...  Partly to mostly cloudy.  Low 25 to 30.  Wind east at 10 to 15 mph.

.Tuesday...  Mostly cloudy.  Light snow or drizzle possible at times.  Little if any snow accumulation expected.  High 30 to 35.  Wind east at 10 to 20 mph.

.Tuesday night...  Snow becoming more likely.  Snow could be mixed with rain or drizzle at times below the hill.  Low 30 to 32.

.Wednesday...  Light snow.  Snow could be mixed with rain or drizzle below the hill.  High 32 to 36. Note:  Total snowfall accumulations of around 3-5" possible from Tuesday night into Wednesday.

Normal temperatures for Tuesday

High:  32
Low:   18

Sunrise Tuesday:  7:22 AM CST
Sunset Tuesday:   4:27 PM CST