/Issued 2:32 PM CDT, Sunday, August 19, 2018/
Source: http://www.pivotalweather.com
12z European model 8.19.2018
Source: http://weather.cod.edu
Goes-16 water vapor satellite loop from Sunday, August 19, 2018 (Loop time: 9:02 AM to 3:07 PM)
A nice looking area of low pressure across the northern and central Plains today, this system is moving slowly to the north/east.
Source: https://www.spc.noaa.gov
12z HREF model
Source: https://lab.weathermodels.com
Source: https://www.tropicaltidbits.com
12z GEFS model 8.19.2018
Source: https://www.tropicaltidbits.com
12z GEFS model 8.19.2018
Precipitation Anomaly forecast valid through September 4, 2018.
Green colors=Above average precipitation
It won’t rain every day through September 4, but the overall trend is for more frequent rainfalls leading to above average precipitation totals for the rest of this month and into early September in northeast Minnesota and northwest Wisconsin.
Source: http://www.pivotalweather.com
12z European model 8.19.2018
Red lines on map represent possible low pressure disturbances that could eject out of the trough over the western U.S. during the week of August 26.
Source: https://hprcc.unl.edu
Temperature departure map for the week of August 12, 2018. All of northeast Minnesota and northwest Wisconsin had above average temperatures last week, generally around 2 to 6 degrees above normal!
Source: https://hprcc.unl.edu
Precipitation departure map for the week of August 12, 2018. The entire Northland was dry last week.
Temperature and Precipitation report for Duluth, Minnesota
August 12 through 18, 2018
High Temperatures/Departure from Normal
8/12: 88 F/+13 degrees above normal
8/13: 89 F/+14 degrees above normal
8/14: 78 F/+3 degrees above normal
8/15: 74 F/-1 degree below normal
8/16: 81 F/+6 degrees above normal
8/17: 82 F/+8 degrees above normal
8/18: 76 F/+2 degrees above normal
Low Temperatures/Departure from Normal
8/12: 62 F/+7 degrees above normal
8/13: 69 F/+14 degrees above normal
8/14: 62 F/+7 degrees above normal
8/15: 53 F/-2 degrees below normal
8/16: 58 F/+3 degrees above normal
8/17: 57 F/+2 degrees above normal
8/18: 60 F/+5 degrees above normal
Note: Average temperature for the week of August 12: 70.6 degrees (+5.8 degrees above normal) Source: https://www.dnr.state.mn.us
Total Precipitation (Aug 12-18) 0.00 inches
Normal: 0.83 inches
Departure: -0.83 inches below normal
State Average for Minnesota for the week of August 12, 2018
Source: https://www.dnr.state.mn.us
Temperature: 72.2 degrees
Departure: +3.8 degrees above normal
Precipitation: 0.48 inches
Departure: -0.34 inches below normal
Weather Tidbits for Duluth, Minnesota
•45 days so far this year with a high temperature of at least 80 degrees — 2018 is now tied with 1970 for 4th place for most number of days with a high temperature of at least 80 degrees.
•So far this month we’ve only had 5 days with below average temperatures — See list below
August 1: 4 degrees below average
August 2: 8 degrees below average
August 3: 7 degrees below average
August 4: 1 degree below average
August 15: 1 degree below average
Going into today, August 19, our average temperature for the month was at 69.2 degrees, +3.8 degrees above normal.
Weather Synopsis
Skies were generally mostly cloudy with lingering smoke and haze across the Northland today although there has been some sunshine breaking through the clouds and haze at times. Highs ranged from around 70 to around 80 degrees today, and it was rather muggy with dew points this afternoon mostly in the mid 60s with Silver Bay reporting a dew point of 70 tropical degrees at 1 PM today.
Tonight and Monday:
The Northland will be impacted by a few different systems. The first is a cold front which pushes south/east of our area by Monday afternoon, the second is an upper level trough which passes through the upper Midwest tonight and Monday. Skies will generally be mostly cloudy tonight and Monday with some rain and showers expected in our area. A few thunderstorms are also possible especially tonight. Lift with the cold frontal boundary and the upper level trough should be enough to produce some rain in our area, I don’t think will see widespread heavy rainfall amounts with this system, but a few locations could pick up more than an inch of rain, but some others might only get a little bit of rain, possibly amounting to only a few hundredths of an inch or so.
Lows tonight will be in the 50s and 60s with highs Monday in the 60s and 70s. Looks like will get a stronger northeast flow developing over Lake Superior which pushes inland on Monday, wind gusts to 25 mph will be possible Monday for areas near Lake Superior.
Tuesday and Wednesday:
A few spotty showers could linger on Tuesday in some parts of the area, mainly northwest Wisconsin/far eastern Minnesota, otherwise it looks generally dry Tuesday and Wednesday. Highs Tuesday mainly in the 70s, highs Wednesday in the 70s to lower 80s.
Note: Rain chances return to the Northland late this week, especially on Friday (24th) the way it looks now.
Duluth, Minnesota Climate Normals for August 20
High: 74
Low: 54
Sunrise Monday: 6:13 AM CDT
Sunset Monday: 8:10 PM CDT
Tim
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