Sunday, August 21, 2016

August 21, 2016: 37 degrees at International Falls this morning - 2nd coldest low temperature on record for Aug 21. A few showers late tonight north of Duluth; 70s and 80s with gusty S-SW winds Monday and Tuesday

/Issued 7:15 PM CDT, Sunday, August 21, 2016/

Last week's temperature departure map.  Warmest areas or the greatest departure from normal was near Lake Superior.  Pockets of near normal temperatures in the yellow shaded areas on the map but overall most of the Northland had above average temperatures for the week of August 14th.

Last week's precipitation departure map.  Most of the Northland was drier than normal last week (Yellow and orange shaded areas on map) With just a few areas that had above average precipitation (Green areas on map)  Much average precipitation totals around the Twin Cities metro area into western-southern portions of Wisconsin.

18z HRRRX model rainfall forecast for late tonight-early Monday morning.

Severe thunderstorm outlook for Tuesday, August 23, 2016.  Source, Storm Prediction Center.

Tonight's low temperature forecast.

Monday's high temperature forecast.

Temperature and precipitation report for Duluth, Minnesota - Airport location

August 14-20, 2016

High temperatures:

8/14:  79 F/+4 degrees above normal
8/15:  78 F/+3 degrees above normal
8/16:  80 F/+5 degrees above normal
8/17:  84 F/+10 degrees above normal
8/18:  80 F/+6 degrees above normal
8/19:  77 F/+3 degrees above normal
8/20:  65 F/-9 degrees below normal

Low temperatures:

8/14:  57 F/+2 degrees above normal
8/15:  57 F/+2 degrees above normal
8/16:  61 F/+6 degrees above normal
8/17:  61 F/+6 degrees above normal
8/18:  62 F/+7 degrees above normal
8/19:  64 F/+10 degrees above normal
8/20:  54 F/Normal

Total precipitation:  1.03"
Normal:  0.83"
Departure:  +0.20" above normal

Low temperature report for August 21, 2016
Source:  National Weather Service Duluth, Minnesota

International Falls, MN:  37 F
13 SSE of Littlefork, MN:  39 F
Crane Lake, MN:  39 F
Togo, MN:  40 F
Embarrass, MN:  40 F
Chisholm-Hibbing, MN (Airport)  42 F
Makinen, MN:  42 F
Cook, MN:  43 F
Bigfork, MN:  43 F
Northome, MN:  44 F
3 SE of Cotton, MN:  45 F
Walker, MN:  45 F

Note:  2nd coldest low temperature on record this morning (August 21) at International Falls, Minnesota.  Low temperature was 37 degrees which ties with 2011 and 1956 for 2nd coldest low temperature for the 21st of August.  The coldest low temperature for August 21 is 32 degrees which was set in 2004.

Weather Summary for NE Minnesota and NW Wisconsin
Date:  August 21, 2016

A pleasant end to the weekend.  Partly to mostly sunny skies were found over the Northland today with highs in the mid 60s to low 70s which is near to around 5 degrees below average for late August.  Winds were out of the west or northwest at 5 to 15 mph.

Forecast Discussion for NE Minnesota and NW Wisconsin

...Short Term Forecast...

Tonight (August 21)

Warm air advection pattern develops as south winds develop on the backside of high pressure which moves into Illinois.  Partly to mostly cloudy skies will be found in the area tonight with a chance for a few showers late tonight mainly over the Borderland and Arrowhead of Minnesota.  Lows will mainly be in the 50s but some locations might drop into the 40s late this evening.  Winds will shift to the south or southwest at 5 to 15 mph.

Monday (August 22)

A few spotty showers early in the morning in far northern Minnesota otherwise partly to mostly sunny skies with high temperatures warming into the upper 70s and low-mid 80s with 70s along the North Shore of Lake Superior.  Lows Monday night will be in the 50s and 60s under partly cloudy skies.  Winds on Monday will be out of the south or southwest at 10 to 20 mph with gusts to 25 mph.

...Extended Forecast...

Tuesday and Wednesday (August 23-24)

Warm temperatures continue on Tuesday with highs mainly in the 80s.  A cold front will move slowly east out of the northern Plains and is forecast to move through the Northland from late Tuesday night into Wednesday.  Scattered showers or thunderstorms are possible as this front moves through the area Tuesday night with a chance for showers or thunderstorms on Wednesday mainly over parts of northwest Wisconsin and in the Arrowhead of Minnesota.

Highs on Wednesday should be in the 70s and 80s.

Lows Tuesday night are forecast to mainly be in the 60s with lows Wednesday night in the 50s and 60s.

Note:  It will be turning a little more humid in coming days with dew points on Monday in the 50s and 60s -- Mainly in the 60s on Tuesday -- And in the 60s to lower 70s on Wednesday from eastern Minnesota into northwest Wisconsin with less humid conditions across northern Minnesota.

Forecast for Duluth and Superior

.Tonight...  Partly cloudy.  Low 52 to 57.  Wind west to northwest at 5 to 15 mph this evening becoming southwest late.

.Monday...  Warmer.  Partly cloudy.  High 78 to 83.  Wind southwest at 15 to 20 mph.

Normal temperatures for Monday

High:  73
Low:  54

Sunrise Monday:  6:16 AM CDT
Sunset Monday:   8:06 PM CDT