/Issued 5:53 PM CDT, Tuesday, October 31, 2017/
Here’s my snowfall accumulation map for Wednesday’s system zoomed in on the Twin Ports area.
-4-6 inches of snow possible around Hermantown and Arnold and northeast from there.
-Around 2 inches for Superior and Downtown Duluth.
-Generally in the 2-4 inch range for most other areas.
18z NAM-Nest model future radar for Wednesday starting at 7 AM, ending Thursday morning at 7 AM. Blue is snow, darker blue colors represent heavier snowfall.
Forecast surface maps for Wednesday
November Climate Data for Duluth, Minnesota
Normals for the month
Temperature: 28.8 degrees
Precipitation: 2.09 inches
Snowfall: 13.7 inches
Warmest November on record: 40.6 degrees set in 1899; Coldest 18.8 degrees set in 1959
Wettest November on record: 5.08 inches set in 2000; Driest 0.09 inches set in 1917
Snowiest November on record: 50.1 inches set in 1991; Least snowy, trace set in 1928
Normal high on the 1st: 44 degrees; Normal high on the 30th: 28 degrees
Normal low on the 1st: 29 degrees; Normal low on the 30th: 14 degrees
Average number of days with at least 0.1″ snowfall: 9. Most was 17 days set in 1996, 1993 and 1956.
Astronomical Data for November
Sunrise on the 1st: 7:51 AM CDT
Sunrise on the 30th: 7:31 AM CST
Sunset on the 1st: 5:52 PM CDT
Sunset on the 30th: 4:22 PM CST
Weather Tidbits for Duluth, Minnesota
*Snow depth of 4 inches this morning, October 31, 2017 ties with October 31, 1951 for greatest snow depth on record on Halloween.
*This is the 4th Halloween on record with at least 1.0″ snow depth. The other years were 1951, 1955, 1984, and now 2017.
*3rd coldest Halloween on record at Duluth, Minnesota with a high temperature today of 27 degrees, this ties with October 31, 1996 for 3rd coldest high temperature on record. The coldest Halloween occurred in 1951 with a high temperature of 25 degrees.
*3rd coldest Halloween on record at International Falls, Minnesota with high temperature today of 27 degrees. The coldest Halloween on record occurred in 1951 with a high temperature of 25 degrees.
A very cold Halloween across the Northland with daytime highs only in the mid 20s to low 30s which is 15-20 degrees colder than normal! Skies were generally mostly cloudy today although there were some breaks in the clouds mainly over western-southern areas.
Tonight: Mostly cloudy to possibly partly cloudy skies with lows in the teens and 20s. Scattered flurries are possible this evening.
Wednesday: A snowy day ahead with snow spreading from west to east across the Northland. Highs generally in the 30 to 34 degree range.
Thursday: Low that gives us our snow on Wednesday exits to the NE on Thursday. A few lingering snow showers/flurries are possible during the morning. A few peeks of sun are possible Thursday but overall skies still look to remain on the cloudier side of things. Highs will be in the 30s.
Link to Minnesota road conditions: https://lb.511mn.org/mnlb/winterdriving/routeselect.jsf
Link to Wisconsin road conditions: https://511wi.gov/map
Forecast for Duluth and Superior
Event: *Winter Weather Advisory*
Timing: 9 AM Wednesday to 9 PM Wednesday
.Tonight… Considerable cloudiness. Low 23 to 28. Wind becoming southeast around 10 mph.
.Wednesday… Snow developing during the morning, mainly after 9 AM. Snow during the afternoon. High 31 to 34. Wind southeast at 10 to 20 mph.
.Wednesday night… Snow during the evening. Total snow accumulation of 2 to 4 inches with up to 6 inches possible for the Higher Terrain of Lake Superior near and northeast of Hermantown. Low 31 to 34. Wind southeast at 10 to 15 mph becoming west late.
Normal temperatures for Wednesday
Sunrise Wednesday: 7:51 AM CDT
Sunset Wednesday: 5:52 PM CDT