Friday, October 7, 2016

Frosty nights ahead; Snow and rainfall reports from earlier today; Nearing 70 on Monday followed by another shot of cool air

/Issued 5:06 PM CDT, Friday, October 7, 2016/

Snowfall map for October 6-7, 2016.  Source, http://mrcc.isws.illinois.edu/cliwatch/watch.htm















Frost advisory in light blue; Freeze warning in darker blue.  Source, http://wx.aerisweather.com/

Frost advisory information per NWS Duluth, MN:  http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=frost%20advisory
















Tonight's low temperature forecast.  Source, http://graphical.weather.gov/sectors/uppermissvly.php




















Saturday's high temperature forecast.  Source, http://graphical.weather.gov/sectors/uppermissvly.php





















Precipitation reports for October 6-7, 2016
Source:  National Weather Service Duluth, Minnesota; MesoWest

Minong, WI:  1.25"
Clam Lake, WI 4W:  1.20"
Siren, WI:  1.15"
Hayward, WI:  1.12"
Ashland, WI:  1.11"

Ashland, WI 3S:  1.10"
Hurley, WI:  0.92"
Barnes, WI:  0.86"
Glidden, WI:  0.75"
Isabella, MN:  0.70"

Ely, MN 25E:  0.65"
Park Falls, WI:  0.62"
Cotton, MN:  0.60"
Grand Portage, MN:  0.59"
Babbitt, MN:  0.58"

Island Lake, MN 4E:  0.57"
Wright, MN 3E:  0.55"
Aitkin, MN:  0.54"
Grand Marais, MN:  0.54"
Duluth, MN:  0.51"

Moose Lake, MN:  0.50"
Duluth, MN (NWS)  0.48"
Cloquet, MN:  0.46"
Two Harbors, MN:  0.42"
Superior, WI:  0.42"

Hibbing, MN:  0.38"
Silver Bay, MN:  0.36"
Phillips, WI:  0.36"
Hill City, MN:  0.34"
Grand Rapids, MN:  0.30"

Hinckley, MN:  0.24"
Brainerd, MN:  0.21"
Grand Rapids, MN 12N:  0.20"
Orr, MN 3E:  0.19"

*Snowfall reports for October 7, 2016*
Source:  National Weather Service Duluth, Minnesota

Togo, MN:  1.0"
Orr, MN 3E:  0.7"
Embarrass, MN:  0.5"
Chisholm, MN:  0.4"

Weather Summary for northeast Minnesota and northwest Wisconsin
Date:  October 7, 2016

The flip to much chillier temperatures occurred today as highs were only in the low to mid 40s with a few spots in northern Minnesota sitting at 39 degrees late this afternoon.  These temperatures today are around 10 degrees below average for the 7th of October.  The low pressure system which brought the rain and in some parts of the Northland the season's first measurable snowfall has moved into northeast Ontario Province this afternoon with a ridge of high pressure stretching from western Saskatchewan Province to the central Plains.

Forecast Discussion for northeast Minnesota and northwest Wisconsin

.Short Term Forecast...

Tonight (October 7)

There's extensive cloud cover across the Northland late this afternoon but we should see some breaks in the clouds develop as the night wears on, as a result areas of frost will develop in parts of the Northland but this will be highly dependent on sky conditions, if skies stay mostly cloudy then temperatures would likely remain warm enough preventing frost from forming.

Low temperatures tonight will mainly be in the 30s but a few 20s are possible in the typical cold spots.  Winds will be out of the west at 10 to 20 mph.

A few spotty light rain showers will continue tonight across northern Minnesota and some of these showers could be in the form of snow showers later in the night.

Saturday (October 8)

Mostly cloudy to partly sunny skies on the way for Saturday with a chance for a few showers mainly over southwest portions of the area, and also in far northern Minnesota.  Note:  Flurries or snow showers are also possible mainly before 10 AM.

Highs on Saturday will be in the 40s to lower 50s with winds out of the west or northwest at 10 to 20 mph.

Partly to mostly cloudy skies Saturday night with mainly in the 30s.  Winds becoming light and variable in direction as high pressure settles over the Upper Midwest.

.Extended Forecast...

Sunday (October 9)

Partly to mostly cloudy with highs in the 50s with 40s along the North Shore of Lake Superior thanks to a southeast wind coming off Lake Superior.  Lows Sunday night will mainly be in the 40s.  A warm front is expected to pass through the Northland on Sunday but this front shouldn't generate any precipitation.

Monday (October 10)

The Northland will be in the warm sector of a storm system on Monday with an area of low pressure over western Ontario Province, a warm front well to our north and a cold front near the Red River Valley - A mild southwest wind should be in place on Monday with 850mb temperatures climbing to between +10 and +15 degrees Celsius in our area, this should result in daytime highs getting into the 60s and possibly into the lower 70s if there is enough sun.  Looks dry during the day but a few showers could develop Monday night.

Note:  Another shot of cooler temperatures looks like it'll arrive during the middle of next week (October 11-13 time frame)

Forecast for Duluth and Superior

Event:  *Frost Advisory*
Timing:  Midnight tonight until 9 AM CDT Saturday

.Tonight...  Mostly cloudy with some clearing possible after midnight.  Patchy frost possible toward daybreak.  Low 33 to 38.  Wind west at 10 to 20 mph.

.Saturday...  Considerable cloudiness.  High 46 to 51.  Wind west to northwest at 10 to 20 mph.

Normal temperatures for Saturday

High:  55
Low:  37

Sunrise Saturday:  7:17 AM CDT
Sunset Saturday:   6:33 PM CDT

Tim