Friday, August 19, 2016

August 19, 2016: Cooler temperatures this weekend with some rain on Saturday; 70s and 80s return next Monday-Tuesday

/Issued 4:38 PM CDT, Friday, August 19, 2016/

Forecast maps for Saturday per Weather Prediction Center.  Low pressure moving northeast out of southern Wisconsin combined with an upper level trough approaching from the west should result in a somewhat rainy Saturday in northeast Minnesota and northwest Wisconsin - Rainfall totals don't look too impressive though with mostly a light rainfall in most of the area with the possible exception to this being in eastern portions of northwest Wisconsin from Ashland and the Hayward Lakes on to the east where some moderate rainfall is possible.

Tonight's low temperature forecast.

Saturday's high temperature forecast.

Rainfall reports for August 18-19, 2016
Source:  National Weather Service Duluth, MN; MesoWest

Siren, WI:  1.37"
7 NW of Brainerd, MN:  1.34"
Brainerd, MN:  1.12"
Hayward, WI:  1.06"
Phillips, WI:  0.60"

12 N of Isle, MN:  0.59"
Clam Lake, WI:  0.52"
Duluth, MN (National Weather Service)  0.33"
Aitkin, MN:  0.31"
Isabella, MN:  0.25"

Duluth, MN (Airport)  0.23"
Minong, WI:  0.21"
3 E of Wright, MN:  0.16"
Hurley, WI:  0.16"
Cloquet, MN:  0.15"

Barnes, WI:  0.14"
Superior, WI (Airport)  0.13"
12 N of Grand Rapids, MN:  0.10"
Ashland, WI:  0.08"

Weather Summary for NE Minnesota and NW Wisconsin
Date:  August 19, 2016

Mostly cloudy to partly sunny skies across the area today with high temperatures mainly in the 70s which is pretty close to average for late August.  Winds were out of the north or southwest at 5 to 15 mph.  Surface map at 2 PM had a cold front extending from eastern Lake Superior to east central Wisconsin to central Kansas with a fairly strong upper level system digging south/east out of the northern Rockies with widespread 12-hour 500mb height falls of 30-60 meters occurring this afternoon over the northern Plains and Upper Midwest per mesoanalysis.  High pressure of 1026mb was over western Montana.

Forecast Discussion for NE Minnesota and NW Wisconsin

...Short Term Forecast...

Tonight (August 19)

Mostly cloudy skies.  Light rain or showers possible mainly from east central Minnesota through parts of northwest Wisconsin.  Lows will be in the 50s and 60s with winds out of the north or east at 5 to 15 mph.

Saturday (August 20)

Low pressure is forecast to track from eastern Iowa to northern Lake Michigan while an upper level trough moves east into the Upper Midwest -- Should have a decent amount of forcing associated with the approaching trough, and this should lead to pretty good coverage of light to moderate rain across most of the Northland on Saturday.  The rain/showers should spread generally from southwest to northeast or from west to east through the day.

The rain should diminish from west to east Saturday evening or during the overnight hours.

Might be a few peeks of sun tomorrow morning in northern Minnesota otherwise generally overcast conditions through Saturday evening.

Cool temperatures on Saturday with highs mainly in the 60s to around 70 degrees with lows in the 40s and 50s.  Winds will be out of the north at 10 to 20 mph.

...Extended Forecast...

Sunday and Monday (August 21-22)

Nicer weather should return on Sunday with at least some sunshine expected with highs in the 60s to lower 70s.  Warmer temperatures return early in the week with highs on Monday in the 70s and perhaps even the low 80s in some parts of the area.  Low temperatures Sunday night are expected to be in the 40s and 50s.  Lows Monday night mainly in the 50s.  Looks dry both Sunday and Monday.

Forecast for Duluth and Superior

.Tonight...  Partly to mostly cloudy.  Low 56 to 61.  Wind north at 5 to 15 mph.

.Saturday...  Mostly cloudy.  Light rain developing during the morning with light rain during the afternoon.  Cooler.  High 65 to 70.  Wind north at 10 to 20 mph.

Normal temperatures for Saturday

High:  74
Low:   54

Sunrise Saturday:  6:14 AM CDT
Sunset Saturday:   8:09 PM CDT