Sunday, May 7, 2017

Clear and chilly tonight. Cool lake breeze continues near Lake Superior Monday, a bit warmer farther inland

/Issued 7:17 PM CDT, Sunday, May 7, 2017/


Early evening water vapor satellite image.  Surface/upper level analysis.

Tonight's low temperature forecast.  Source:

Monday's high temperature forecast.  Source:

Temperature departure map for the week of April 30th, 2017.  Source:

Precipitation departure map for the week of April 30th, 2017.  Source:

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

April 30-May 6, 2017

High temperatures

4/30:  49 F/-8 degrees below normal
5/1:  42 F/-15 degrees below normal
5/2:  58 F/Normal
5/3:  66 F/+8 degrees above normal
5/4:  60 F/+2 degrees above normal
5/5:  61 F/+2 degrees above normal
5/6:  53 F/-6 degrees below normal

Low temperatures

4/30:  35 F/-1 degree below normal
5/1:  34 F/-2 degrees below normal
5/2:  35 F/-2 degrees below normal
5/3:  41 F/+4 degrees above normal
5/4:  40 F/+3 degrees above normal
5/5:  36 F/-2 degrees below normal
5/6:  35 F/-3 degrees below normal

Total precipitation:  0.53"
Normal:  0.71"
Departure:  -0.18" below normal

Weather Synopsis

The weather pattern is blocked up and very amplified with troughs to the west and east and a big ridge in the middle.  This is a good pattern to be in as it means little to no rain and lots of sunshine for our local area, but this pattern is also a bad one if you prefer warmer temperatures.  All of the heat is farther west over the northern Plains and western Minnesota where temperatures today soared into the 80s with even a few 90 degree temperatures.  But near Lake Superior thanks to persistent NE winds, highs were once again in the 40s today, but farther inland highs made it into the mid 50s to mid 60s from north central and east central Minnesota into northwest Wisconsin.

*There isn't going to be much change in our weather through the middle of the week.  East winds will continue near Lake Superior at least through Tuesday which means highs in the 40s and 50s while farther inland highs make it into the upper 50s to the mid 60s which is right around average for early May.  Note:  A wind shift to the NW is possible at least for one day (Wednesday) and if that does happen, then highs could hit 60 degrees in Duluth but don't get use to this as any wind shift and slightly milder temperatures we get for midweek likely won't stick around for very long.

*A low pressure system will move slowly east out of the northern Plains through Tuesday but this system will also weaken the farther east it gets -- Any showers associated with this low should remain west and south of the Northland on Monday but a few spotty showers could develop in parts of the area Tuesday but this won't be a big deal.

Forecast for Duluth and Superior

.Tonight...  Clear.  Low 30 to 35.  Wind east at 10 to 15 mph.

.Monday...  Sunny during the morning, then partly to mostly sunny during the afternoon.  High 50 to 55, cooler near Lake Superior.  Wind east at 10 to 20 mph.

Normal temperatures for Monday

High:  60
Low:   38

Sunrise Monday:  5:43 AM CDT
Sunset Monday:   8:28 PM CDT