Alert archive / Michigan / River Flood Warnings in 2026
River Flood Warning 17, NWS Green Bay, WI
NWS Green Bay, WI issued this river flood warning at Apr 12, 2026, 3:02 PM CDT for Florence County, Wisconsin; Dickinson County, Iron County, Michigan. It took effect at Apr 13, 2026, 7:00 AM CDT. It was in force for 20 days.
The area
The counties it named.
The facts
- Issued
- Apr 12, 2026, 3:02 PM CDT (20:02 UTC)
- In effect from
- Apr 13, 2026, 7:00 AM CDT
- Expired
- May 3, 2026, 3:02 PM CDT
- In force
- 20 days
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Dickinson County, MI, Iron County, MI, Florence County, WI
The radar
The Marquette radar (KMQT), 79 km from the middle of the area, began a volume at 20:04 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Menominee River near Florence (FLOW3). The gauge peaked at 11.41 ft at Apr 20, 2026, 6:00 PM CDT.
- Action stage
- 8.5 ft
- Minor stage
- 9 ft
- Moderate stage
- 11 ft
- Major stage
- 13 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 04063000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Green Bay, WI wrote its last area forecast discussion before this river flood warning went out at Apr 12, 1:43 PM CDT, 1 hour 19 minutes earlier.
Area forecast discussion, Apr 12, 1:43 PM CDT, 1 hour 19 minutes before
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</html>Hazardous weather outlook, Apr 12, 3:48 AM CDT, 11 hours 14 minutes before
Hazardous Weather Outlook National Weather Service Green Bay WI 348 AM CDT Sun Apr 12 2026 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-130900- Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano- Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago- Calumet-Manitowoc-Southern Marinette County- Southern Oconto County- 348 AM CDT Sun Apr 12 2026 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...Today and Tonight Heavy rain and scattered thunderstorms are expected this morning. Potential for severe weather is low, but small hail could occur with the strongest storms. Elevated water levels continue along many rivers, with minor flooding occurring on the Wolf River. .DAYS TWO THROUGH SEVEN...Monday through Saturday Periods of heavy rain and thunderstorms are expected at times from Monday evening through Wednesday, and again late in the week. There is a slight risk of severe thunderstorms with large hail and damaging winds Monday evening, and a marginal risk in parts of central and east central Wisconsin Tuesday afternoon and evening. Elevated water levels will continue along many rivers, with minor flooding on the Wolf River persisting through next week. Runoff from rainfall and rapid snow melt in the Upper Peninsula will likely result in minor flooding on the Menominee River by Tuesday or Wednesday, with moderate flooding possible during the end of the work week and weekend. .SPOTTER INFORMATION STATEMENT... Spotters are requested to report any hail or wind gusts greater than 40 mph to the National Weather Service in Green Bay. LMZ521-522-541>543-130900- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 348 AM CDT Sun Apr 12 2026 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...Today and Tonight Conditions hazardous to small craft are expected on Lake Michigan and the bay. There is a chance of thunderstorms this morning. .DAYS TWO THROUGH SEVEN...Monday through Saturday Conditions hazardous to small craft will continue into Monday morning on Lake Michigan. Thunderstorms will be possible at times from Monday night through Wednesday, and again late in the week. Kieckbusch
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 2:35 AM CDT | Special Weather Statement | GRB | Waupaca, Waushara | 40 min |
| Apr 12, 3:13 AM CDT | Special Weather Statement | GRB | Outagamie | 47 min |
| Apr 12, 10:51 AM CDT | River Flood Warning | GRB | Marinette | 15 days |
| Apr 12, 10:51 AM CDT | River Flood Warning | GRB | Marinette | 10 days |
| Apr 12, 10:51 AM CDT | River Flood Warning | GRB | Florence, Marinette | 11 days |
| Apr 12, 10:54 AM CDT | River Flood Warning | GRB | Florence | 21 days |
| Apr 12, 10:54 AM CDT | River Flood Warning | GRB | Marathon | 21 days |
| Apr 12, 1:53 PM CDT | River Flood Warning | GRB | Oconto | 7 days |
| Apr 12, 5:24 PM CDT | Special Weather Statement | GRB | Brown, Calumet, Manitowoc, Outagamie | 36 min |
| Apr 12, 5:36 PM CDT | Marine Dense Fog Advisory | GRB | 13 hr | |
| Apr 12, 5:59 PM CDT | Special Weather Statement | GRB | Door, Kewaunee, Manitowoc | 46 min |
Nearby
River Flood Warnings in Michigan, 2026River Flood Warnings in Wisconsin, 2026Every river flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.