A disturbance moving east along a stationary front brought freezing rain to portions of north central Upper Michigan from the evening of the 26th into the morning of the 27th.
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The episode as NWS MQT wrote it up.
A disturbance moving east along a stationary front brought freezing rain to portions of north central Upper Michigan from the evening of the 26th into the morning of the 27th.
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 Mar 26, 7:31 PM EST, 1 hour 29 minutes earlier.
Area Forecast Discussion National Weather Service Marquette MI 831 PM EDT Sun Mar 26 2017 .SHORT TERM...(This evening through Monday) Issued at 320 PM EDT SUN MAR 26 2017 Water vapor imagery and RAP analysis show a mid level low centered over northern IL. Deep moisture associated with this feature surged back to the n across Upper MI last night into today, bringing periods of -ra/-fzra. Upslope e to se flow also resulted in some patchy dense fog this morning into early afternoon over portions of the Keweenaw Peninsula...Dickinson and southeast Marquette counties. Models show the mid-level low and assoc trough lifting ne through Lower Mi this evening and then into Ontario late tonight/Mon morning. With movement of the mid-level trough the 850mb trough and weak isentropic ascent also shifts e tonight, so expect pcpn over mainly the central and eastern fcst area to diminish. However with abundant moisture, developing nnw upslope flow and approaching weak shortwave, some -ra/-fzra will remain possible over the w tonight. Sfc temps should slip back to around freezing over the w and n central, so there may still be a little bit of icing at some locations late tonight. However, accumulations should be minor so no statement will be issued at this time. Expect some fog as well. Weak northerly flow between sfc low over eastern Ontario and sfc high building into south central Canada will result in murky weather conditions with some fog and possible light drizzle or freezing drizzle Mon morning mainly over upslope locations of west and north central U.P. Forcing from incoming northern stream shortwave could enhance upslope pcpn turning dz/fzdz to -ra/-fzra for a time late morning into mid aftn. NAM soundings suggest could even be brief period of sleet or snow mixing in over west and northwest with evaporative cooling aloft. Limited moisture depth as noted on NAM soundings will not warrant anything more than slight chc to low chc pops. Expect highs in the mid 30s to lower 40s, warmest e and se under cloudy skies. .LONG TERM...(Monday night through Sunday) Issued at 401 PM EDT SUN MAR 26 2017 Rather benign weather is expected through much of the period as a slow-moving mid to upper ridge is gradually replaced by a mid-level low drifting NE from the southern plains. Lingering low-level moisture may allow for a light wintry mix for the higher terrain along Lake Superior, and patchy fog across most of the CWA, Monday night. A fairly shallow and sharp inversion may keep low clouds across the area well into Tuesday afternoon, but gradual mixing through the day should erode most of the clouds by the evening. Dry conditions are then expected through Wednesday with the ridge settling over Lake Superior and northern Ontario. N to NE winds will likely keep temps in the mid 30s both Tuesday and Wednesday along Lake Superior. The NW extent of a somewhat closed mid-level low will then brush mainly the SE half of the CWA Thursday night into Friday night. Again, precip type will be in question with cloud-layer temps aloft only slightly below freezing. However, marginal upper-level cloud seeding and the absence of a pronounced warm layer should limit the amount of freezing rain. Inconsistencies in the model guidance develop by next weekend, with mixed signals regarding a weak mid-level trough traversing the area Saturday night. Will maintain chance PoPs at this point. && .AVIATION...(For the 00Z TAFS through 00Z Monday evening) Issued at 822 PM EDT SUN MAR 26 2017 Abundant low-level moisture over the area should lead to prevailing LIFR conditions at KIWD/KCMX/KSAW through tonight. Some -FZRA is still possible but temperstures are expected to remain at or just above freezing. Fog late tonight may be low enough to drop vsby near landing minimums at KSAW. Drier air moving in on Monday will result in improving conditions during the morning into the MVFR range at KIWD and KCMX. IFR cigs should still linger at KSAW into the afternoon. && .MARINE...(For the 4 PM Lake Superior forecast issuance) Issued at 320 PM EDT SUN MAR 26 2017 With no signIficant weather systems affecting the Upper Great Lakes this week, no gales are expected on Lake Superior. In fact, winds will mostly be under 20kt. && .MQT WATCHES/WARNINGS/ADVISORIES... Upper Michigan... None. Lake Superior... None. Lake Michigan... None. && SHORT TERM...Voss LONG TERM...Kluber AVIATION...JLB MARINE...Voss
Hazardous Weather Outlook National Weather Service Marquette MI 423 PM EDT Sun Mar 26 2017 MIZ001>007-009>014-084-085-271000- Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft- Southern Houghton-Northern Schoolcraft- 423 PM EDT Sun Mar 26 2017 /323 PM CDT Sun Mar 26 2017/ This Hazardous Weather Outlook is for portions of western Upper Michigan and central Upper Michigan. .DAY ONE...Tonight Some light freezing rain is possible overnight across western and north central Upper Michigan. .DAYS TWO THROUGH SEVEN...Monday through Saturday Light freezing rain is possible Monday morning across western and north central Upper Michigan. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to submit reports of freezing rain and icing to the Marquette National Weather Service office. The public may provide reports through our web page, our Facebook and Twitter pages, or by phone. LSZ162-240>251-263>267-271000- 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- 423 PM EDT Sun Mar 26 2017 /323 PM CDT Sun Mar 26 2017/ 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...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. LMZ221-248-250-271000- 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- 423 PM EDT Sun Mar 26 2017 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...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. Kluber
The national radar mosaic for the moment the first event began.
2 winter weather. Local standard time, as filed.
A thin glaze of ice from light freezing rain was observed at the National Weather Service in Negaunee Township on the morning of the 27th.
The observer at Herman observed a thin glaze of ice from light freezing rain on the morning of the 27th. Low visibility in freezing fog was also reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2017Every state in 2017This day in weather historyWarnings in Michigan, March 2017
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: 690438, 690439.