Sunday, May 21, 2017

West wind in Duluth Monday, heatwave with highs 50-55F; Strong east wind returns Tue PM-Wed. Frost threat midweek. More clouds, little bit of sun and a few more showers at times tonight-Tue

/Issued 4:56 PM CDT, Sunday, May 21, 2017/

Source:  https://www.weatherbell.com/

Blue and green areas indicate below average temperatures
Orange areas indicate above average temperatures
Areas in white indicate near normal temperatures

















Source:  https://www.weatherbell.com/
















Source:  http://mrcc.isws.illinois.edu

Temperature departure map for the week of May 14th.




















Source:  http://mrcc.isws.illinois.edu

Precipitation departure map for the week of May 14th.




















Temperature and precipitation report for Duluth, Minnesota (Airport location)

May 14-20, 2017

High temperatures:

5/14:  59 F/-3 degrees below normal
5/15:  60 F/-2 degrees below normal
5/16:  58 F/-4 degrees below normal
5/17:  59 F/-4 degrees below normal
5/18:  58 F/-5 degrees below normal
5/19:  52 F/-11 degrees below normal
5/20:  47 F/-17 degrees below normal

Low temperatures:

5/14:  42 F/+2 degrees above normal
5/15:  42 F/+2 degrees above normal
5/16:  45 F/+4 degrees above normal
5/17:  49 F/+8 degrees above normal
5/18:  38 F/-3 degrees below normal
5/19:  33 F/-9 degrees below normal
5/20:  37 F/-5 degrees below normal

Total precipitation:  2.94"
Normal:  0.73"
Departure:  +2.21" above normal

Note:  The last time the Duluth Airport had an above average high temperature was on May 13th, over a week ago now.  No signs of an above average high temperature coming anytime soon, so this streak will continue.

*Through May 21st -- 3 days so far this month with a high temperature of at least 70 degrees at the Duluth Airport.  The 1981-2010 average for May is 8 days.  Might add one more day to the total but probably won't be more than that the way it's looking.

24-hour rainfall totals across the Northland
Source:  http://mesowest.utah.edu

Note:  Totals listed below are for the 24-hour period ending at 3 PM today (May 21, 2017)

Silver Bay, MN:  1.11 in
Longville, MN:  1.04 in
Two Harbors, MN:  0.87 in
Duluth, MN (Airport)  0.83 in
Isabella, MN:  0.81 in
Skibo, MN:  0.73 in
Ely, MN:  0.68 in
Moose Lake, MN:  0.61 in
McGregor, MN:  0.58 in
Hill City, MN:  0.56 in
Washburn, WI:  0.56 in
Hayward, WI:  0.52 in
Solon Springs, WI:  0.51 in
Minong, WI:  0.48 in
Grand Marais, MN:  0.44 in
Siren, WI:  0.44 in
Clam Lake, WI:  0.44 in
Chisholm-Hibbing, MN (Airport)  0.43 in
Phillips, WI:  0.39 in
Brainerd, MN:  0.39 in
Cass Lake, MN:  0.36 in
Grand Portage, MN:  0.38 in
Glidden, WI:  0.34 in
Hinckley, MN:  0.34 in
Walker, MN:  0.33 in
Pine River, MN:  0.29 in
Ashland, WI:  0.28 in
Littlefork, MN:  0.26 in
Kabetogama, MN:  0.24 in
International Falls, MN:  0.23 in
Orr, MN:  0.21 in

Weather Synopsis

Widespread rains have ended but there will continue to be scattered showers and patchy drizzle at times across the Northland through Tuesday.  Low pressure responsible in this latest round of soaking rain has moved into western Lake Superior (Southeast of Grand Marais, MN) late this afternoon.  The surface low will lift slowly N/NE, setting up north of Lake Superior Monday while a large upper level low remains over the upper Midwest before it shifts farther to the south/east by Wednesday.

Expect a continuation of mostly cloudy skies into Tuesday although some breaks in the overcast are certainly possible at times but overall the theme of more clouds than sun will continue Monday and Tuesday.

The Twin Ports will finally get a brief break in the strong east wind the next few days.  Winds will swing around to the west tonight, and will remain out of the west Monday before they back to the east/northeast again Tuesday and Wednesday, in fact it looks quite windy again late Tuesday and Wednesday with east winds possibly gusting to ~25mph.  Unfortunately even with the wind shifting to the west it really won't warm us up too much as highs remain around 10 degrees below average Monday and Tuesday.

Lows tonight will mainly be in the 40s with highs Monday in the 40s and 50s.

Note:  There will be a chance for patchy frost in parts of northeast Minnesota and northwest Wisconsin toward the middle of the week.

Forecast for Duluth and Superior

.Tonight...  Mostly cloudy.  Scattered showers and some drizzle.  Areas of fog especially during the evening.  Low 40 to 45.  Wind west at 5 to 15 mph.

.Monday...  Considerable cloudiness.  Scattered showers.  High 50 to 55.  Wind west at 10 to 20 mph.

Normal temperatures for Monday

High:  64
Low:   42

Sunrise Monday:  5:26 AM CDT
Sunset Monday:   8:45 PM CDT

Tim