Monday, January 9, 2017

Snow this evening, another round of snow Tuesday; Arctic air mid-late week followed by a thaw next week (Highs 30s and 40s!)

/Issued 4:27 PM CST, Monday, January 9, 2017/

Yellow outlined area on map=Chance for more than 3" of snow tonight due to lake enhancement.












Winter weather headlines map.  More information at the links below.

Winter Storm Warning (Pink shaded area on map) http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=winter%20storm%20warning

Winter Weather Advisory (Purple shaded area on map) http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=winter%20weather%20advisory












Forecast surface maps.  Source:  http://www.wpc.ncep.noaa.gov/





























Still a ways out but the computer models remain in good agreement with much milder temperatures for the northern Plains and upper Midwest for next week.
















Tonight's low temperature forecast.  Source:  http://graphical.weather.gov/




















Tuesday's high temperature forecast.  Source:  http://graphical.weather.gov/




















Round one snowfall totals from Sunday night, January 8, 2017

Source:  http://www.weather.gov/dlh/

Duluth, MN 2 NW:  3.7"
West Duluth, MN:  3.2"
Duluth, MN 5 NW:  3.1"
Two Harbors, MN 3 N:  3.0"
Ekso, MN:  3.0"
Keewatin, MN:  3.0"
Prosit, MN:  2.9"
Holyoke, MN:  2.5"
Knife River, MN 2 NE:  2.5"
Bennett, WI:  2.5"
Iron Junction, MN 2 W:  2.3"
Aurora, MN:  2.0"
Silver Bay, MN 1 ENE:  1.9"
Gile, WI:  1.6"
Brainerd, MN:  1.5"
Grand Rapids, MN 7 SE:  1.0"

Weather Synopsis:

Well Sunday evening's snow event was a little heavier than expected at least in some parts of the Northland as snow totals reached 3" to close to 4" in a few locales -- The cold airmass in place helped to produce very large snowflakes (Fluffy snowfall) which caused rapid accumulations.

The Northland had a break in the snowfall this morning but snow has overspread most of north central and east central Minnesota and portions of northwest Wisconsin this afternoon thanks to a warm air advection pattern which has setup today ahead of a low pressure system which was over the northern Rockies and western High Plains region.

High temperatures today were in the upper single digits in extreme northern Minnesota while the rest of the area had temperatures in the teens to around 20 degrees, certainly quite a bit warmer today than it has been in recent days.

*Light to moderate snow is expected throughout northeast Minnesota and northwest Wisconsin this evening thanks to a warm front which will lift north out of southern Minnesota.  Snowfall totals will likely range from 1-3" with a few locales reaching the 4" mark by late this evening especially from east central Minnesota into northwest Wisconsin.  Note:  The North Shore of Lake Superior will likely have some lake enhanced snow tonight due to the SE flow off Lake Superior -- The area from around Two Harbors to Silver Bay to Grand Marais could pick up 3-5" of snow by daybreak.

*Another break in the snow is forecast to occur overnight tonight although lingering snow showers are possible along the North Shore of Lake Superior.  Lows tonight will hold steady in the single digits to lower 20s.

*The next wave of snow will sweep across the Northland on Tuesday as low pressure lifts northeast through the upper Midwest and western Great Lakes -- The surface low is expected to deepen from around 996mb Tuesday morning to around 985mb by Tuesday evening.  Some of the snow on Tuesday could be moderate to even heavy at times especially during the morning and early afternoon hours from eastern Minnesota through northwest Wisconsin.  There is also a chance for some sleet to mix in with the snow on Tuesday mainly around the Hayward Lakes, Park Falls and Phillips areas in southeast portions of northwest Wisconsin.

Highs Tuesday will mainly be in the 20s but temperatures will fall into the teens during the afternoon in northern Minnesota.  Lows Tuesday night will range from the single digits above to teens below zero.

*Another shot for some light snow on Wednesday which will be followed by another batch of arctic air for Thursday and Friday.

Forecast for Duluth and Superior

Event:  *Winter Weather Advisory for Superior*
Timing:  Until 3 PM CST Tuesday

.Tonight...  Snow this evening with accumulations of 1 to 2".  Flurries still possible after midnight.  Low 15 to 20.  Wind east to southeast at 10 to 15 mph.

.Tuesday...  Snow redeveloping during the morning and continuing through the afternoon.  Snowfall accumulations of 1-3".  High 21 to 26.  Wind east at 5 to 15 mph becoming northwest at 10 to 20 mph during the afternoon.

Normal temperatures for Tuesday

High:  19
Low:     1

Sunrise Tuesday:  7:52 AM CST
Sunset Tuesday:   4:41 PM CST


Tim