/Issued 5:10 PM CST, Thursday, December 14, 2017/
Here’s my preliminary snowfall accumulation map for Friday through Saturday
21z RAP model
12z European Ensemble model – One Inch Snow Depth Probability Forecast valid for Christmas morning, December 25, 2017.
Note: White Christmas is defined as having at least one inch of snow on the ground Christmas morning.
Note: Heads up for the middle of next week! The storm track, timing and area of snow could shift around in coming days. Stay tuned
Weather Tidbits for Duluth, Minnesota
*Number of days with Snowfall (0.1 inch or greater accumulation)
October 1 thru December 14, 2017: 18
October 1 thru December 14, 2016: 12
*Number of days with Snowfall of at least 1 inch
October 1 thru December 14, 2017: 7
October 1 thru December 14, 2016: 7
A few breaks in the clouds at times in parts of the area today but overall skies were mostly cloudy, there’s also been some pesky fluffy snow flurries as well today but little if any accumulation. Highs today were mainly in the teens which is roughly 5 degrees below average for mid December.
Tonight: A cold front will drop south into the Northland with low pressure over the eastern Great Lakes. Occasional flurries will continue tonight while some lake effect snow showers develop along the South Shore of Lake Superior. Lows ranging from around 10 below to the single digits above zero, a little warmer along the South Shore of Lake Superior.
Friday and Saturday: A frontal boundary will become nearly stationary west/south of our area with high pressure to our north — Should see some snow near and north of the aforementioned boundary with this snow most likely to develop Friday afternoon or evening, then continuing through Saturday morning before ending. Note: East winds will develop Friday night and continue most of Saturday which could lead to some lake enhanced snow along the North Shore of Lake Superior. Highs Friday will be on the chilly side with temperatures in the single digits in far northern Minnesota to the 20s near the Brainerd Lakes area. Highs Saturday are forecast to range from the mid teens to mid 20s.
Note: A frigid weather pattern has been showing up now fairly consistently per long range models for December 22-25 this would include Christmas Eve and Christmas Day. How cold? Still a little early to say with a lot of confidence, but the potential is there for daytime highs around zero with overnight lows ranging from 5 below to 30 below, certainly could end up even colder, or could trend warmer in coming days. Stay tuned
Forecast for Duluth and Superior
.Tonight… Light snow showers and flurries. Considerable cloudiness. Low 1 to 6. Wind west to northwest at 10 to 20 mph.
.Friday… Partly to mostly cloudy. High 11 to 16. Wind west at 10 to 15 mph.
.Friday night… Light snow gradually developing. Mostly cloudy. Low 5 to 10. Wind becoming east at 10 to 15 mph.
.Saturday… Light snow. Snowfall accumulations of 1 to 3 inches possible. High around 25. Wind east at 10 to 20 mph.
Normal temperatures for Friday
Sunrise Friday: 7:47 AM CST
Sunset Friday: 4:21 PM CST