Moderate lake effect snow downwind of Lake Superior was reported across west and north central portions of Upper Michigan from the 6th into the 7th.
Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MQT wrote it up.
Moderate lake effect snow downwind of Lake Superior was reported across west and north central portions of Upper Michigan from the 6th into the 7th.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Marquette, MI wrote its last area forecast discussion before the first event at Feb 6, 4:29 AM CST, 1 hour 31 minutes earlier.
Area Forecast Discussion National Weather Service Marquette MI 529 AM EST Sun Feb 6 2022 .SHORT TERM...(Early this morning) Issued at 142 AM EST SUN FEB 6 2022 Upper air pattern consists of a 500 mb trough in the upper Great Lakes this morning. The snow with a clipper system is moving out and will continue to head east. This is covered well in the forecast and made few changes. .LONG TERM...(Today through Saturday) Issued at 248 AM EST SUN FEB 6 2022 Continued upstream ridging and board troughing across the eastern third of Canada and CONUS is expected. This will place Upper Michigan on the road for any system dropping out of Canada and into the trough. In terms of sensible weather, this means off and on snow chances and a mid-week warm up. Starting off today, the clipper that brought the region some WAA/isentropically forced snow overnight is expected to make its way slowly across Lake Superior. Across the UP, this largely means a break in snow this morning as the main push exits east outside of the western LES belts. As the low pulls away, another shortwave will swing through by afternoon. Given the lack of forcing though, only light snow is expected. Some lake enhancement can't be ruled out into the western UP, which could result in an uptick in snow rates and amounts this afternoon/evening. Amounts could approach 3 or 4 inches into tonight in some places along the Spine of the Keweenaw, mainly where LES, enhancement and terrain are favored. By tonight, the flow over Lake Superior under continued surface troughing could support mesolow formations that drift southward into the eastern UP. Confidence is low on exact placement, but nearly every CAM presents a solution with a mesolow dropping south somewhere between Big Bay and Munising by Monday morning. These could create bursts of moderate snowfall and timing could be the morning commute. Weak mid-level ridging will set in on Monday, with surface troughing lingering over Lake Superior. This largely will support mostly quiet conditions save for light lake effect showers downwind of Lake Superior. Expect activity to wind down through the day though as the ridge settles in. By Tuesday, southerly flow will help support a warmer airmass advecting into the region. Guidance suggests 850mb temps could warm to 0 to -2C, which could send highs close to 30F across the region. Another shortwave is progged to move in Wednesday, which could give us another shot for widespread light snow. As CAA behind the system begins in the afternoon, LES is expected to develop across the north to northwest wind snow belts and could linger into early Thursday. Attention then turns to Thursday night/Friday. Models seem to be flip flopping on the timing, track, and amount of moisture associated with the next clipper. It appears that the deterministic EC, GFS and Canadian all bring a low through the Upper Great Lakes late Thursday into Friday. At least among these, there's a good chance for widespread moderate snow with some lake enhancement into the eastern UP, or into the north-central being possible. Where would depend on the track of the system. It should be noted that while these deterministics appear to be honing in on a solution, there's still considerable spread among the GEPS and GEFS members. && .AVIATION...(For the 12Z TAFS through 12Z Monday morning) Issued at 528 AM EST SUN FEB 6 2022 Conditions will stay MVFR through the period at IWD with snow showers off and on with a passing disturbance. CMX will be alternating between MVFR and IFR with snow showers moving through the period. SAW will be VFR for most of the period, but there will be MVFR with some snow showers this afternoon and evening. && .MARINE...(For the 4 AM Lake Superior forecast issuance) Issued at 248 AM EST SUN FEB 6 2022 Mostly quiet conditions are expected across Lake Superior through the period. Current low over the lake will slowly progress eastward and exit the lake later today as a shortwave moving through clears it out. Generally winds are expected to be 20 knots or less; however with lake effect snow showers in the area, some locally stronger winds to 25 knots can't be ruled out. Overall light winds are expected afterwards, but guidance is pinging on a mesolow developing over eastern Lake Superior Sunday night and dipping south into central Upper Michigan by Monday morning. Wherever this low develops and transits, winds along its western and northern flank could be locally stronger winds to near 30 knots. A round of southerly winds of up to 25 knots is expected Tuesday ahead of another shortwave dropping through Tuesday night into Wednesday. Behind this system, increasing cold air advection and a tighter pressure gradient could support northernly to northwesterly winds to near 30 knots, mainly in the eastern half of the lake. && .MQT WATCHES/WARNINGS/ADVISORIES... Upper Michigan... None. Lake Superior... None. Lake Michigan... None. && SHORT TERM...07 LONG TERM...JP AVIATION...07 MARINE...JP
Hazardous Weather Outlook National Weather Service Marquette MI 346 AM EST Sun Feb 6 2022 MIZ001>007-009>014-084-085-071300- Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft- Southern Houghton-Northern Schoolcraft- 346 AM EST Sun Feb 6 2022 /246 AM CST Sun Feb 6 2022/ This Hazardous Weather Outlook is for portions of western Upper Michigan and central Upper Michigan. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LSZ162-240>251-263>267-071300- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM-Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays-Huron Islands to Marquette MI- Marquette to Munising MI-Munising to Grand Marais MI- Grand Marais to Whitefish Point MI- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 346 AM EST Sun Feb 6 2022 /246 AM CST Sun Feb 6 2022/ This Hazardous Weather Outlook is for portions of Eastern Lake Superior...Central Lake Superior and Western Lake Superior. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LMZ221-248-250-071300- Green Bay North of line from Cedar River MI to Rock Island Passage-Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 346 AM EST Sun Feb 6 2022 This Hazardous Weather Outlook is for portions of Northern Lake Michigan. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. 07
The national radar mosaic for the moment the first event began.
6 winter weather. Local standard time, as filed.
Observers near Ironwood measured between 4 and 5 inches of lake effect snow over a 24-hour period.
The observer at Herman measured 10 inches of lake effect snow in 24 hours.
The observer at Laurium measured 10.7 inches of lake effect snow over a 24-hour period. Otherwise, other observers over the higher terrain of northern Houghton County measured between 6 to 9 inches of lake effect snow in 24 hours.
Lake effect snowfall totals over the county included 9 inches near Ontonagon and nearly 7 inches six miles north of Greenland over a 24-hour period.
Observers across the county generally measured 4 to 5 inches of lake effect snow over a 24-hour period.
Observers across the county generally measured between 4 and 6 inches of lake effect snow over a 24-hour period.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2022Every state in 2022This day in weather historyWarnings in Michigan, February 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1006443, 1006436, 1006437, 1006438, 1006440, 1006442.