Here in my yard, I now recorded 4” of new snowfall yesterday and overnight and now have around 4” of snow on the ground. At 6:40 AM there is light snow falling and a temperature of 24. The temperature was near 33 34 most of yesterday and a good part of the overnight. KEY MESSAGES SNOW SHOWERS ESPECIALLY NEAR/NORTH OF MUSKEGON THROUGH TONIGHT IMPACTFUL PERIOD OF SNOW AND WIND SUNDAY NIGHT THROUGH MONDAY SUBZERO WIND CHILLS MONDAY/TUESDAY, THEN MORE SNOW COMING MIDWEEK AN ARCTIC FRONT WILL BE ARRIVING SUNDAY NIGHT INTO MONDAY BRINGING IMPACTFUL LAKE-ENHANCED SNOW AND BLOWING SNOW ESPECIALLY FOR AREAS NEAR AND WEST OF US 131. 1000-700MB TRAJECTORIES INDICATE SW FLOW LAKE ENHANCEMENT 21Z SUNDAY THROUGH 03Z MONDAY THEN A SHIFT TOWARD W TO NW AFTER THAT. NAM12 IS INDICATING SIGNIFICANT LIFT WITHIN THE DGZ AS THE ARCTIC FRONT APPROACHES AND AFTER IT MOVES THROUGH, WITH 10-20 UBAR/S SHOWN NEAR/WEST OF US 131. BUFKIT SOUNDINGS USING NAM12 AT HOLLAND INDICATE VERY DEEP MOISTURE UP TO 20K FT SUNDAY EVENING INTO MONDAY MORNING WITH SIGNIFICANT LIFT LOCATED EXACTLY IN THE CENTER OF THE DGZ. THE HEAVIEST SNOWFALL RATES LOOK TO OCCUR DURING THIS TIME FRAME. ADDITIONALLY, WIND GUSTS INCREASE TO THE 25-35 MPH RANGE INLAND WITH HIGHER GUSTS ALONG THE LAKESHORE. THE POWDERY NATURE OF THE SNOW WILL BE PRONE TO BLOWING AND DRIFTING. WHITE OUTS ARE LOOKING LIKELY ALONG THE LAKESHORE WITH HAZARDOUS TRAVEL CONDITIONS LIKELY EXTENDING TO THE US 131 CORRIDOR AND POTENTIALLY EAST AS BANDS BLOW INLAND. TEMPERATURES OF 10F TO 15F ALONG WITH BLOWING/DRIFTING SNOW WILL MAKE ROAD TREATMENT EFFORTS A CHALLENGE. ADDITIONAL WINTER HEADLINES WILL BE NEEDED WITH FUTURE FORECAST UPDATES Detailed Forecast Today Snow showers likely, mainly after 1pm. Mostly cloudy, with a temperature falling to around 23 by 10am. West southwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible. Tonight Snow showers. Steady temperature around 23. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible. Sunday Snow showers. High near 23. Southwest wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible. Sunday Night Snow showers. Low around 13. South southwest wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of around 3 inches. M.L.King Day Snow showers. High near 15. West northwest wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible. Monday Night Snow showers likely. Mostly cloudy, with a low around 6. Chance of precipitation is 60%. New snow accumulation of less than one inch possible. Tuesday Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 18. Chance of precipitation is 60%. Tuesday Night Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 12. Wednesday Snow showers likely. Mostly cloudy, with a high near 28. Wednesday Night A chance of snow showers. Mostly cloudy, with a low around 14. Thursday A chance of snow showers. Mostly cloudy, with a high near 19. Thursday Night A chance of snow showers. Mostly cloudy, with a low around 9. Friday A chance of snow showers. Mostly cloudy, with a high near 20. The official H/L yesterday at Grand Rapids was 33/20 there was 0.30” of precipitation that fell as 3.3” of snow. The highest wind gust was 36 MPH out of the S. For today the average H/L is 31/18 the record high of 56 was in 1952 the coldest high of 3 was in 1982 the record low of -10 was in 1976 the warmest low of 41 was in 1894 in more recent years it was 40 in 1973. The wettest was 0.97” in 1897 the most snowfall of 4.7” was in 2009 the most snow on the ground was 22” in 1979. Some weather history for January 17th 1982 Strong chinook winds caused severe wind damage in Boulder, CO. Wind gusts to 118 mph was recorded on the roof of the Environmental Research Laboratories (ERL), and a wind gust to 137 mph was measured atop the roof of the NCAR building (in the southwest part of the city, 600 feet above ground level). The high winds uprooted trees and damage roofs. (Storm Data) and in 2010 A series of strong Pacific storms impacted Arizona, California, Colorado, New Mexico, Nevada and Utah from January 17th through 23rd, leaving behind several feet of snow across the higher terrain and breaking numerous lowest barometric pressure records across the region. Sunrise Mountain, Arizona received 77 inches of snow, while Mammoth Lakes, California received 90 inches. (NCDC)

Well, I don’t live near a lake, but tonight’s snowfall was lake-effect like. I had 1.5 inches at my house on the NE side of KC, but 5 miles outside of my hood, basically nothing. 3 very heavy snow bursts that lasted about 10-15 minutes each. I was the jack zone! Beautiful winter scene outside, only for my neighborhood! Crazy!

Arctic air gets to Seattle with deep cold entrenched in BC. It's a tad worse than the 00z but much more similar to that run than any other. G'nite yall

06z GFS Day 7 6 Run Trend

The block evacuating north is a bad theme tonight but at this point it's just waffling in an unstable series of runs, no real trend yet