Sunday, January 1, 2017

Snow arrives late tonight, continues at times through Tue; Winter Storm Warnings and Advisories in effect for the entire Northland; Bitterly cold mid to late week

/Issued 5:00 PM CST, January 1, 2017/

Here's my snowfall accumulation map for this next event.

Snow will begin to fall in Duluth after midnight tonight with about an inch or two of accumulation possible by 8 AM Monday.












Winter Weather Headlines map.

More information about these headlines can be found at the links below.

Winter Storm Warning http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=winter%20storm%20warning

Winter Weather Advisory http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=winter%20weather%20advisory

Winter Storm Watch http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=winter%20storm%20watch











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

























































Temperature departure map for the week of December 25th.  Above normal temperatures last week.  Source:  http://mrcc.isws.illinois.edu/




















Precipitation departure map for the week of December 25th.  Well above normal precipitation totals across the Northland last week.  Source:  http://mrcc.isws.illinois.edu/





















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




















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




















Note:  2016 tied with 1987 for 5th warmest year on record at Duluth, Minnesota.  By the way 2015 was 6th warmest.

Average temperature:  42.7 degrees
Normal:  39.6 degrees
Departure:  +3.1 degrees above normal

Total precipitation:  33.66"
Normal:  30.96"
Departure:  +2.70" above normal

Here are the top 10 warmest years on record at Duluth, MN.

1)  44.4 F (1931 and 1878)

2)  44.0 F (2012)
3)  43.2 F (1998)
4)  42.8 F (2006 and 1877)

5)  42.7 F (2016 and 1987)

6)  42.4 F (2015)
7)  41.8 F (2010)
8)  41.6 F (1941)
9)  41.5 F (1999 and 1894)
10)  41.3 F (2001)

Note:  1874 had an average temperature of 48.3 degrees but there is missing temperature data for the months of January, February, March, April, and May, so I guess we can throw out 1874 as being the warmest year on record -- I sent out a tweet earlier this afternoon which said that 1874 was the warmest year on record, that was incorrect.

2016 extremes at Duluth, MN

Warmest:  92 F on May 6
Coldest:  -21 F on December 18

Wettest:  2.27" on July 11
Snowiest:  8.7" on March 16

34 thunderstorms days

1st thunderstorm was on May 6, the last thunderstorm of the year occurred on November 18.  The most active months for thunderstorms was June and July with 8.  Second most active month was September with 6 thunderstorm days.

Temperature and precipitation report for Duluth, Minnesota

December 25-31, 2016

High temperatures:

12/25:  32 F/+12 degrees above normal
12/26:  38 F/+18 degrees above normal
12/27:  13 F/-7 degrees below normal
12/28:  28 F/+8 degrees above normal
12/29:  26 F/+7 degrees above normal
12/30:  20 F/+1 degree above normal
12/31:  21 F/+2 degrees above normal

Low temperatures:

12/25:  24 F/+20 degrees above normal
12/26:  11 F/+7 degrees above normal
12/27:  3 F/-1 degree below normal
12/28:  9 F/+6 degrees above normal
12/29:  16 F/+13 degrees above normal
12/30:  10 F/+7 degrees above normal
12/31:  11 F/+8 degrees above normal

Total precipitation:  1.14"
Normal:  0.27"
Departure:  +0.87" above normal

Weather Synopsis:

Pesky snow flurries lingered into the morning hours but skies did clear out quite nicely from north-south in the Northland this afternoon.  Temperatures were in the teens north of Highway 2 in northeast Minnesota with 20s in east central Minnesota and northwest Wisconsin.

*A stationary frontal boundary extending from southwest Minnesota to central Wisconsin this evening will lift slightly more to the north on Monday before it shifts off to the south/east by Tuesday morning thanks to an area of low pressure which develops and tracks NE through the upper Midwest and western Great Lakes.  Snow will occur north of this front where the air will remain cold enough to support the snow.  Near and south of this boundary expect a wintry mix of snow, freezing rain and possibly even some rain for a time with a light glaze of ice accumulation possible from south central Minnesota up into central portions of Wisconsin.

*Clouds will increase this evening with snow spreading SW-NE into the Northland later tonight.  Lows will range from the single digits in far northern Minnesota to the 20s in eastern Minnesota and northwest Wisconsin.  Winds will shift to the east tonight at 5 to 15 mph.

*Occasional snow is expected in northeast Minnesota and northwest Wisconsin on Monday with some breaks in the snowfall forecast to occur especially in eastern parts of Minnesota into northwest Wisconsin...Areas of freezing drizzle could develop in areas that see the snow taper off Monday or Monday evening.  Temperatures on Monday will be in the teens in extreme northern Minnesota to around 30 degrees in eastern Minnesota and northwest Wisconsin.  Note:  Falling temperatures into the single digits and teens on the way for Tuesday.

*Road conditions will deteriorate by late tonight with snow, slush covered and icy roadways Monday and Tuesday.

Forecast for Duluth and Superior

Event:  *Winter Weather Advisory for Duluth*
Timing:  9 PM this evening to 6 PM CST Tuesday

Event:  *Winter Weather Advisory for Superior*
Timing:  Noon Monday to 4 PM CST Wednesday

.Tonight...  Increasing cloudiness.  Snow developing after midnight.  Snowfall accumulation of around 1" to 2" possible by daybreak.  Low 15 to 20.  Wind becoming east at 10 to 15 mph.

.Monday...  Occasional snow and some blowing snow.  Patchy freezing drizzle possible.  High 29 to 32.  Wind east at 15 to 20 mph.

.Monday night...  Snow.  Temperature 29 to 32.

.Tuesday...  Turning colder! Lingering light snow and some blowing snow.  Temperatures falling into the teens.  Total snowfall event accumulations of 4" to 6".

Normal temperatures for Monday

High:  19
Low:     3

Sunrise Monday:  7:53 AM CST
Sunset Monday:   4:32 PM CST

Tim