Briefly heavy mixed precipitation fell across portions of central Upper Michigan early on the 28th.
Every event with a place to put it; 4 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.
Briefly heavy mixed precipitation fell across portions of central Upper Michigan early on the 28th.
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 27, 7:19 PM EST, 4 hours 41 minutes earlier.
Area Forecast Discussion National Weather Service Marquette MI 719 PM EST Tue Feb 27 2018 .SHORT TERM...(This evening through Wednesday) Issued at 317 PM EST TUE FEB 27 2018 All the attention in the short term is on Fgen forced precip on the N side of a surface trough axis nosing into the region. Models have significantly increased QPF over the S-central to eastern U.P. and have followed that trend in the forecast. Low-mid level temps will be cooling dynamically as the precip develops, which will push the rain/snow line farther south to southern Menominee County. Where rain is expected, surface temps should be above freezing. Elsewhere, 0.5-1.0 inch of snow is forecast from Stephenson to Escanaba, Manistique, and Newberry. There is a possibility for greater amounts as the HRRR shows total QPF around 0.50 inches, but that seems overdone and definitely on the high side of guidance. Did not issue any headlines or SPSs given limited amounts. .LONG TERM...(Wednesday night through Tuesday) Issued at 317 PM EST TUE FEB 27 2018 Overall, through the extended the weather looks to remain fairly quiet across the Upper Great Lakes region. Zonal flow will break down towards the end of the work week as a lead shortwave tracks eastward across the central and eastern CONUS, allowing a deepening low pressure system to track across the southern Great Lakes on Thursday. Given the southern track of the system and models still showing most, if not all of the precipitation remaining south of the area, do not expect much if any precipitation to reach southern portions of Upper Michigan. We could see some light wintry precipitation off of Lake Superior as the system continues to move over the eastern Great Lakes region on Friday, but with 850mb temperatures being very marginal and high pressure quickly moving into the region any precipitation should remain light. For the up and coming weekend, we will be sandwiched in between two systems with upper-level ridging slowly moving eastward across the Upper Great Lakes region. As a result, high pressure will give way a pleasant weekend with mild conditions and dry weather. Cloud cover will be on the increase, along with winds, towards the end of the weekend into early next week as deep, longwave trough slowly ejects out across the Plains. This upper-level trough is progged to slowly track across the Upper Great Lakes region through early next week allowing for better chances for widespread precipitation and cooler temperatures. Precipitation type as this system tracks across the region will be highly dependent on the track of the system, which models continue to diverge on. Temperatures following the system will also depend on the strength and track of the system. If temperatures are able to cool down enough aloft to support any lake effect precipitation, it will depend highly on the ice coverage over Lake Superior. && .AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon) Issued at 1238 PM EST TUE FEB 27 2018 VFR conditions are expected at all TAF sites. However, there is potential for lowered conditions at KSAW late this evening and early tonight as an area of snow and showers passes just to the SE. && .MARINE...(For the 4 PM Lake Superior forecast issuance) Issued at 317 PM EST TUE FEB 27 2018 Today through the end of the week, winds are expected to remain below 25 knots. && .MQT WATCHES/WARNINGS/ADVISORIES... Upper Michigan... None. Lake Superior... None. Lake Michigan... None. && SHORT TERM...Titus LONG TERM...Ritzman AVIATION...Titus MARINE...Titus
Hazardous Weather Outlook National Weather Service Marquette MI 318 PM EST Tue Feb 27 2018 MIZ001>007-009>014-084-085-282030- Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft- Southern Houghton-Northern Schoolcraft- 318 PM EST Tue Feb 27 2018 /218 PM CST Tue Feb 27 2018/ This Hazardous Weather Outlook is for portions of western Upper Michigan and central Upper Michigan. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday 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>267-282030- 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- 318 PM EST Tue Feb 27 2018 /218 PM CST Tue Feb 27 2018/ This Hazardous Weather Outlook is for portions of Eastern Lake Superior...Central Lake Superior and Western Lake Superior. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LMZ221-248-250-282030- 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- 318 PM EST Tue Feb 27 2018 This Hazardous Weather Outlook is for portions of Northern Lake Michigan. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. Ritzman
The national radar mosaic for the moment the first event began.
4 winter weather. Local standard time, as filed.
The Delta County Sheriff reported a mix of rain and freezing rain across portions of Delta County early on the 28th.
The Marquette National Weather Service in Negaunee Township measured two inches of wet snow in two hours. Other locations across Marquette County observed freezing rain mixing in with the snow.
The observer ten miles south of Grand Marais measured two inches of wet snow in three hours.
There was a report of freezing rain mixing in with wet snow at McMillan early morning on the 28th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2018Every state in 2018This day in weather historyWarnings in Michigan, February 2018
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: 740032, 740033, 740036, 740035.