Monday, May 9, 2016

May 9, 2016 Weather Report: Possible snow showers by the weekend; Several days of gusty winds this week; Little bit of rain the next few days; Cold hits May 13-15

/Issued 4:24 PM CDT, May 9, 2016/

4km NAM rainfall total forecast ending at 7 AM CDT Wednesday.  Heaviest rains remain over west central and southern Minnesota thru Wednesday morning.  Rain totals in northeast Minnesota and northwest Wisconsin should be on the light side during the next 24-36 hours.

Upper Midwest radar loop ending at 4:30 PM CDT, May 9, 2016.  Source, WSI.  Some rain in western, central and southern Minnesota this afternoon with movement toward the north.

Tonight's low temperature forecast.  Source, National Weather Service Duluth, Minnesota.

Tuesday's high temperature forecast.  Source, National Weather Service Duluth, Minnesota.

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

May 1-7, 2016

High temperatures:

*=Record high temperature for the date.

5/1:  54 F/-3 degrees below normal
5/2:  64 F/+6 degrees above normal
5/3:  68 F/+10 degrees above normal
5/4:  62 F/+4 degrees above normal
5/5:  79 F/+20 degrees above normal
*5/6:  92 F/+33 degrees above normal
5/7:  65 F/+5 degrees above normal

Low temperatures:

5/1:  32 F/-4 degrees below normal
5/2:  31 F/-6 degrees below normal
5/3:  45 F/+8 degrees above normal
5/4:  38 F/+1 degree above normal
5/5:  36 F/-2 degrees below normal
5/6:  52 F/+14 degrees above normal
5/7:  43 F/+5 degrees above normal

Total precipitation:  0.51"
Normal:  0.70"
Departure:  -0.19" below normal

Weather Summary for NE Minnesota and NW Wisconsin
Date:  May 9, 2016

Gusty east winds have returned and they will stick around for a while.  A pretty typical pattern around here for this time of year with strong high pressure to our north/northeast feeding lots of dry air into the Northland while low pressure covers the northern Rockies, western High Plains and south central Plains.  Above normal temperatures continued today with highs in the middle 60s to lower 70s but much cooler 40s and 50s near Lake Superior which is below average for the 9th of May.  Winds were out of the east or southeast at 10 to 20 mph with higher gusts.

Forecast Discussion for NE Minnesota and NW Wisconsin

Confidence:  Medium to High.

Low pressure stretching from the northern Rockies to the central Plains will lift slowly toward the north/east through Wednesday, this system will finally exit to the east on Thursday -- High pressure will remain anchored over Ontario Province through Wednesday.

There will be some rain at times tonight and Tuesday mainly over western-southern sections of the Northland.  Dry air moving down Lake Superior thanks to the high over Ontario Province will likely keep most if not all of the rain west and south of the Iron Range, North Shore and Arrowhead at least through Wednesday morning...With that said, there could be some sprinkles or light rain showers that make it this far north but it shouldn't be a lot of rain the way it looks now.  As for the Twin Ports:  I think will get at least a little bit of rain on Tuesday but it shouldn't be a lot.  A better chance for rain during the Wednesday afternoon/Wednesday night time frame the way it looks now.

Low temperatures tonight and Tuesday night will be in the 40s to around 50 degrees with upper 30s possible closer to Lake Superior.

High temperatures on Tuesday and Wednesday should be in the 50s and 60s with 70s possible in far northern Minnesota on Tuesday.  It will be cooler near Lake Superior with highs holding in the 40s.

Little change in wind direction through Wednesday morning with east or southeast winds at 10 to 20 mph with gusts to 30 mph near Lake Superior.

Looking ahead...

Confidence:  Medium to High.

Much colder air moving in Friday and through the weekend -- 850mb temperatures are forecast to fall to between -2 and -6C over the weekend with daytime highs only in the 40s with some locations in northern Minnesota possibly struggling to get out of the 30s Friday and Saturday.  Could be some showers at times Friday through Sunday and with the cold airmass in place some of the showers could fall as snow or sleet.

Normal temperatures for Tuesday, May 10 at Duluth, Minnesota.

High:  61
Low:   39

Sunrise Tuesday:  5:40 AM CDT
Sunset Tuesday:   8:31 PM CDT