Alert archive / Wisconsin / River Flood Warnings in 2026

River Flood Warning 3, NWS Green Bay, WI

April 2, 2026Oconto County, Wisconsin

NWS Green Bay, WI issued this river flood warning at Apr 2, 2026, 10:44 PM CDT for Oconto County, Wisconsin. It took effect at Apr 2, 2026, 11:34 PM CDT. It was in force for 5 days.

The area

The outline as issued.

The facts

Issued: Apr 2, 2026, 10:44 PM CDT (03:44 UTC)
In effect from: Apr 2, 2026, 11:34 PM CDT
Expired: Apr 7, 2026, 2:40 PM CDT
In force: 5 days
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Flood severity: Minor

County Oconto County, WI

The radar

The Green Bay radar (KGRB), 44 km from the middle of the area, began a volume at 03:48 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 Oconto River near Oconto (OCTW3). The gauge peaked at 11.05 ft at Apr 4, 2026, 9:00 PM CDT.

Action stage: 7 ft
Minor stage: 9 ft
Moderate stage: 12 ft
Major stage: 14 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04071765, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

751 
WGUS43 KGRB 030344
FLWGRB

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Green Bay WI
1044 PM CDT Thu Apr 2 2026

...The National Weather Service in Green Bay has issued a Flood
Warning for the following rivers in Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Oconto...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued Friday afternoon by 145 PM CDT.

&&

WIC083-031845-
/O.NEW.KGRB.FL.W.0003.260403T0434Z-260406T0300Z/
/OCTW3.1.ER.260403T0434Z.260404T0000Z.260405T0900Z.UU/
1044 PM CDT Thu Apr 2 2026

...FLOOD WARNING IN EFFECT UNTIL SUNDAY EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until Sunday evening.

* IMPACTS...At 9.0 feet, Floodwaters begin to spread into a public
  campground in the City of Oconto. Water approaches the backyards of
  several homes along the river in Oconto and there is widespread
  lowland flooding.

* ADDITIONAL DETAILS...
  - At 10:00 PM CDT Thursday the stage was 8.9 feet.
  - Bankfull stage is 7.0 feet.
  - Forecast...The river is expected to rise above flood stage late
    this evening to a crest of 9.5 feet Friday evening. It will then
    fall below flood stage early Sunday morning.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

Bersch

11 follow-up statements

792 
WGUS83 KGRB 031531
FLSGRB

Flood Statement
National Weather Service Green Bay WI
1031 AM CDT Fri Apr 3 2026

...The Flood Warning is extended for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Gillett, Oconto...Minor flooding is
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight by 145 AM CDT.

&&

WIC083-040645-
/O.EXT.KGRB.FL.W.0003.000000T0000Z-260409T0600Z/
/OCTW3.1.ER.260403T0341Z.260404T1800Z.260408T1200Z.NO/
1031 AM CDT Fri Apr 3 2026

...FLOOD WARNING NOW IN EFFECT UNTIL LATE WEDNESDAY NIGHT...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until late Wednesday night.

* IMPACTS...At 10.0 feet, Up to a foot of water surrounds structures
  in a campground in the City of Oconto. At 9.0 feet, Flood waters
  begin to spread into a public campground in the City of Oconto.
  Water approaches the backyards of several homes along the river in
  Oconto and there is widespread lowland flooding.

* ADDITIONAL DETAILS...
  - At 10:00 AM CDT Friday the stage was 9.7 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 10:00 AM CDT Friday was 9.7 feet.
  - Forecast...The river is expected to rise to a crest of 9.9 feet
    early Saturday afternoon. It will then slowly fall below flood
    stage by Wednesday morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of 9.8
    feet on 03/17/2016.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

JLA

867 
WGUS83 KGRB 040223
FLSGRB

Flood Statement
National Weather Service Green Bay WI
923 PM CDT Fri Apr 3 2026

...The Flood Warning continues for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Oconto...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued Saturday afternoon by 1230 PM CDT.

&&

WIC083-041730-
/O.EXT.KGRB.FL.W.0003.000000T0000Z-260409T0000Z/
/OCTW3.1.ER.260403T0341Z.260405T0000Z.260408T0600Z.UU/
923 PM CDT Fri Apr 3 2026

...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until Wednesday evening.

* IMPACTS...At 10.0 feet, Up to a foot of water surrounds structures
  in a campground in the City of Oconto.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Friday the stage was 9.1 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 8:00 PM CDT Friday was 9.8 feet.
  - Forecast...The river is expected to rise to a crest of 10.1 feet
    tomorrow evening. It will then fall below flood stage early
    Wednesday morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of 10.2
    feet on 04/17/2003.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

KLJ

782 
WGUS83 KGRB 041541
FLSGRB

Flood Statement
National Weather Service Green Bay WI
1041 AM CDT Sat Apr 4 2026

...The Flood Warning continues for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Gillett, Oconto...Minor flooding is
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight by 145 AM CDT.

&&

WIC083-050645-
/O.CON.KGRB.FL.W.0003.000000T0000Z-260409T0000Z/
/OCTW3.1.ER.260403T0341Z.260405T0600Z.260408T0600Z.UU/
1041 AM CDT Sat Apr 4 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL WEDNESDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until Wednesday evening.

* IMPACTS...At 10.0 feet, Up to a foot of water surrounds structures
  in a campground in the City of Oconto.

* ADDITIONAL DETAILS...
  - At 10:00 AM CDT Saturday the stage was 10.1 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 10:00 AM CDT Saturday was 10.1 feet.
  - Forecast...The river is expected to rise to a crest of 10.4 feet
    just after midnight tonight. It will then fall below flood stage
    through early Wednesday morning.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

JLA

887 
WGUS43 KGRB 042049
FLWGRB

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Green Bay WI
349 PM CDT Sat Apr 4 2026

...Forecast flooding changed from Minor to Moderate severity for the
following rivers in Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Gillett, Oconto...Moderate flooding
is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

Additional information is available at www.weather.gov.

The next statement will be issued Sunday morning by 700 AM CDT.

&&

WIC083-051200-
/O.CON.KGRB.FL.W.0003.000000T0000Z-260409T0000Z/
/OCTW3.2.ER.260403T0341Z.260405T1200Z.260408T0600Z.UU/
349 PM CDT Sat Apr 4 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL WEDNESDAY EVENING...

* WHAT...Minor flooding is occurring and moderate flooding is
  forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until Wednesday evening.

* IMPACTS...At 13.0 feet, A campground and park are under several
  feet of water. Water approaches homes on Farnsworth Street and
  Holtwood Way. There is widespread moderate flooding of lowland and
  agricultural land.

* ADDITIONAL DETAILS...
  - At 3:00 PM CDT Saturday the stage was 10.9 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 3:00 PM CDT Saturday was 10.9 feet.
  - Forecast...The river is expected to rise to a crest of 12.4 feet
    Sunday morning. It will then fall below flood stage through early
    Wednesday morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of 11.9
    feet on 04/19/2019.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

JLA

693 
WGUS83 KGRB 050155
FLSGRB

Flood Statement
National Weather Service Green Bay WI
855 PM CDT Sat Apr 4 2026

...The Flood Warning is extended for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Oconto...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued Sunday afternoon by noon CDT.

&&

WIC083-051700-
/O.EXT.KGRB.FL.W.0003.000000T0000Z-260409T2100Z/
/OCTW3.1.ER.260403T0341Z.260405T1200Z.260409T0300Z.UU/
855 PM CDT Sat Apr 4 2026

...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until Thursday afternoon.

* IMPACTS...At 11.0 feet, Up to 2 feet of water is covering a
  campground in Oconto. Floodwaters begin to reach city streets
  adjacent to the river.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Saturday the stage was 11.0 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 8:00 PM CDT Saturday was 11.0 feet.
  - Forecast...The river is expected to rise to a crest of 11.2 feet
    tomorrow morning. It will then fall below flood stage late
    Wednesday evening.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

KLJ

136 
WGUS83 KGRB 051553
FLSGRB

Flood Statement
National Weather Service Green Bay WI
1053 AM CDT Sun Apr 5 2026

...The Flood Warning continues for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Gillett, Oconto...Minor flooding is
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight by 200 AM CDT.

&&

WIC083-060700-
/O.EXT.KGRB.FL.W.0003.000000T0000Z-260409T1800Z/
/OCTW3.1.ER.260403T0341Z.260405T0430Z.260409T0000Z.UU/
1053 AM CDT Sun Apr 5 2026

...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until Thursday afternoon.

* IMPACTS...At 10.0 feet, Up to a foot of water surrounds structures
  in a campground in the City of Oconto.

* ADDITIONAL DETAILS...
  - At 10:00 AM CDT Sunday the stage was 10.3 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 10:00 AM CDT Sunday was 11.1 feet.
  - Forecast...The river is expected to fall below flood stage
    Wednesday evening and continue falling to 7.5 feet Sunday, April
    12.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of 10.3
    feet on 04/05/2023.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

Kurimski

391 
WGUS83 KGRB 060157
FLSGRB

Flood Statement
National Weather Service Green Bay WI
857 PM CDT Sun Apr 5 2026

...The Flood Warning continues for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Oconto...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued Monday afternoon by noon CDT.

&&

WIC083-061700-
/O.EXT.KGRB.FL.W.0003.000000T0000Z-260409T1200Z/
/OCTW3.1.ER.260403T0341Z.260405T0430Z.260408T1800Z.UU/
857 PM CDT Sun Apr 5 2026

...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until Thursday morning.

* IMPACTS...At 10.0 feet, Up to a foot of water surrounds structures
  in a campground in the City of Oconto.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Sunday the stage was 10.0 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 8:00 PM CDT Sunday was 10.4 feet.
  - Forecast...The river is expected to rise to a crest of 10.0 feet
    just after midnight tonight. It will then fall below flood stage
    early Wednesday afternoon.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

KLJ

716 
WGUS83 KGRB 061542
FLSGRB

Flood Statement
National Weather Service Green Bay WI
1042 AM CDT Mon Apr 6 2026

...The Flood Warning continues for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Oconto...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight by 145 AM CDT.

&&

WIC083-070645-
/O.EXT.KGRB.FL.W.0003.000000T0000Z-260409T0600Z/
/OCTW3.1.ER.260403T0341Z.260405T0430Z.260408T1200Z.NO/
1042 AM CDT Mon Apr 6 2026

...FLOOD WARNING NOW IN EFFECT UNTIL LATE WEDNESDAY NIGHT...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until late Wednesday night.

* IMPACTS...At 10.0 feet, Up to a foot of water surrounds structures
  in a campground in the City of Oconto.

* ADDITIONAL DETAILS...
  - At 10:00 AM CDT Monday the stage was 9.7 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 10:00 AM CDT Monday was 10.0 feet.
  - Forecast...The river is expected to rise to a crest of 9.8 feet
    this afternoon. It will then fall below flood stage Wednesday
    morning.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

JLA

164 
WGUS83 KGRB 070130
FLSGRB

Flood Statement
National Weather Service Green Bay WI
830 PM CDT Mon Apr 6 2026

...The Flood Warning continues for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

For the Oconto River...including Oconto...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued Tuesday morning by 1130 AM CDT.

&&

WIC083-071630-
/O.CON.KGRB.FL.W.0003.000000T0000Z-260409T0600Z/
/OCTW3.1.ER.260403T0341Z.260405T0430Z.260408T1200Z.UU/
830 PM CDT Mon Apr 6 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE WEDNESDAY NIGHT...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until late Wednesday night.

* IMPACTS...At 10.0 feet, Up to a foot of water surrounds structures
  in a campground in the City of Oconto.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Monday the stage was 9.5 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 8:00 PM CDT Monday was 9.8 feet.
  - Forecast...The river is expected to rise to a crest of 9.7 feet
    just after midnight tonight. It will then fall below flood stage
    Wednesday morning.
  - Flood stage is 9.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

KLJ

435 
WGUS83 KGRB 071601
FLSGRB

Flood Statement
National Weather Service Green Bay WI
1101 AM CDT Tue Apr 7 2026

...The Flood Warning continues for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

  Wolf River near Shiocton affecting Waupaca, Outagamie and Shawano
  Counties.

...The Flood Warning is extended for the following rivers in
Wisconsin...

  Wolf River at New London affecting Waupaca, Winnebago and Outagamie
  Counties.

For the Oconto River...including Gillett, Oconto...Minor flooding is
forecast.
For the Lower Wolf River...including Shiocton, New London, Lake
Poygan...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued this evening by 1000 PM CDT.

&&

WIC087-135-139-081615-
/O.EXT.KGRB.FL.W.0007.000000T0000Z-260414T0000Z/
/NEWW3.1.ER.260404T2145Z.260408T0000Z.260413T0600Z.NR/
1101 AM CDT Tue Apr 7 2026

...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Wolf River at New London.

* WHEN...Until Monday evening.

* IMPACTS...At 10.1 feet, flood waters begin to cover portions of
  West Wolf River Avenue downstream of New London. Widespread lowland
  flooding is occurring from New London to Fremont.

* ADDITIONAL DETAILS...
  - At 10:30 AM CDT Tuesday the stage was 10.2 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 10:30 AM CDT Tuesday was 10.2 feet.
  - Forecast...The river is expected to rise to a crest of 10.2 feet
    this evening. It will then fall below flood stage early Monday
    morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of 10.1
    feet on 03/29/1986.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4434 8867 4431 8881 4418 8877 4418 8887
      4441 8890 4442 8867


$$

WIC083-080300-
/O.EXT.KGRB.FL.W.0003.000000T0000Z-260408T0300Z/
/OCTW3.1.ER.260403T0341Z.260405T0430Z.260407T1800Z.UU/
1101 AM CDT Tue Apr 7 2026

...FLOOD WARNING NOW IN EFFECT UNTIL THIS EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Oconto River above Oconto.

* WHEN...Until this evening.

* IMPACTS...At 9.0 feet, flood waters begin to spread into a public
  campground in the City of Oconto. Water approaches the backyards of
  several homes along the river in Oconto and there is widespread
  lowland flooding.

* ADDITIONAL DETAILS...
  - At 10:00 AM CDT Tuesday the stage was 9.0 feet.
  - Bankfull stage is 7.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 10:00 AM CDT Tuesday was 9.4 feet.
  - Forecast...The river is expected to fall below flood stage this
    afternoon and continue falling to 6.9 feet Tuesday, April 14.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of 9.1
    feet on 04/11/2014.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

WIC087-115-135-081615-
/O.CON.KGRB.FL.W.0004.000000T0000Z-000000T0000Z/
/SHIW3.1.ER.260404T1320Z.260408T0000Z.000000T0000Z.NR/
1101 AM CDT Tue Apr 7 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Wolf River near Shiocton.

* WHEN...Until further notice.

* IMPACTS...At 13.0 feet, flood waters begin to approach homes near
  the river in the Shiocton area. This mainly includes homes along
  Island and Mill Streets. Many seasonal structures are surrounded by
  water.

* ADDITIONAL DETAILS...
  - At 7:30 AM CDT Tuesday the stage was 13.0 feet.
  - Bankfull stage is 9.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 7:30 AM CDT Tuesday was 13.0 feet.
  - Forecast...The river is expected to rise to a crest of 13.3 feet
    this evening.
  - Flood stage is 11.0 feet.
  - Flood History...This crest compares to a previous crest of 13.3
    feet on 03/15/1920.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4468 8852 4433 8848 4434 8867 4440 8867
      4450 8863 4468 8867


$$

MPC

123 
WGUS83 KGRB 071940
FLSGRB

Flood Statement
National Weather Service Green Bay WI
240 PM CDT Tue Apr 7 2026

...The Flood Warning is cancelled for the following rivers in
Wisconsin...

  Oconto River above Oconto affecting Oconto County.

WIC083-072045-
/O.CAN.KGRB.FL.W.0003.000000T0000Z-260407T1940Z/
/OCTW3.1.ER.260403T0341Z.260405T0430Z.260407T1515Z.UU/
240 PM CDT Tue Apr 7 2026

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Oconto River above Oconto.

* ADDITIONAL DETAILS...
  - At 2:00 PM CDT Tuesday the stage was 8.8 feet.
  - Bankfull stage is 7.0 feet.
  - Forecast...The river is expected to gradually fall over the next
    several days, but remain above bankfull stage.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4493 8815 4490 8783 4486 8785 4483 8815


$$

MPC

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 2, 10:42 PM CDT, 2 minutes earlier. Its key messages:

Rain and freezing rain, mixed with sleet over north-central WI, will continue through this evening, before diminishing overnight. Tree damage and power outages are the main impacts from the freezing rain and icing thus far, with some slippery roads. The evening commute across northern WI will be impacted. Ice Storm Warnings and Winter Storm Warnings remain in effect.
Thunderstorms are possible late this afternoon through the evening, especially over southern portions of Winnebago, Calumet, and Manitowoc counties. To the north of these areas, the risk for severe storms has diminished.
Heavy rainfall, mixed precipitation, and thunderstorms are possible Friday night into Saturday. Wintry impacts should be focused over northern WI. A Winter Storm Watch has been issued.
Flooding concerns arise this weekend into early next week following the passage of the two moisture rich systems.

Area forecast discussion, Apr 2, 10:42 PM CDT, 2 minutes before

Area Forecast Discussion
National Weather Service Green Bay WI
1042 PM CDT Thu Apr 2 2026

Updated aviation portion for 06Z TAF issuance

.KEY MESSAGES...

- Rain and freezing rain, mixed with sleet over north-central WI,
  will continue through this evening, before diminishing
  overnight. Tree damage and power outages are the main impacts
  from the freezing rain and icing thus far, with some slippery
  roads. The evening commute across northern WI will be impacted.
  Ice Storm Warnings and Winter Storm Warnings remain in effect.

- Thunderstorms are possible late this afternoon through the
  evening, especially over southern portions of Winnebago, Calumet,
  and Manitowoc counties. To the north of these areas, the risk
  for severe storms has diminished.

- Heavy rainfall, mixed precipitation, and thunderstorms are
  possible Friday night into Saturday. Wintry impacts should be focused
  over northern WI. A Winter Storm Watch has been issued.

- Flooding concerns arise this weekend into early next week
  following the passage of the two moisture rich systems.

&&

.DISCUSSION...
Issued at 226 PM CDT Thu Apr 2 2026

Freezing Rain, Ice through this evening...Rain, mixed with
freezing rain is lifting into northern WI. Earlier sleet that
was observed from Rhinelander north has recently given way to
freezing rain as 800mb warm layer spreads north. No change to
winter headlines in the north (Ice storm Warning, Winter Storm
Warnings) given the initial push of freezing rain into early this
evening, followed by secondary area of mainly freezing rain that
occurs late evening into the early overnight. Additional ice
accumulations up to 0.25 inch are expected before the freezing
rain, ice end overnight. Impacts so far with the ice accumulation
(many reports of 0.25 to 0.40 inch of ice, with isolated reports
up to 0.50 inch) have been tied to tree damage, power outages
versus icy roads. Currently nearly 50k customers remain without
power from central to northeast WI.

Severe Weather Potential Late this Afternoon and Evening...
Surface low over south-central IA is forecast to lift into the Fox
Valley to the lakeshore region late this evening. Expect a few
storms as this moves through, but the risk of severe weather will
be pinned over far southeast forecast area (Oshkosh to Manitowoc
and points south) on gradient of SBCAPE which stays mainly south
and where there is better potential for more organized line of
storms moving through. Even then, forecast soundings show sharp
inversion around 0.5-1.0 km (950-850mb) with MUCAPE up to 500j/kg
and effective shear less than 30 kts. Overll, given the lack of
sfc based instability and not as favorable setup with elevated
storms, seems greatest risk for severe (damaging wind gusts) in
our area will be if well organized line of storms can move through
and draw portion of the 50-55kt of winds aloft down to the sfc,
even as the near sfc instability is lacking. Timing looks similar
to what we have been indicating approximately 7p through Midnight.

A break late tonight through most of Friday, then attention turns
to yet another significant System late Friday through Saturday.
Similar to this system, more potentially significant freezing rain
and icing is expected, though the area most favored is displaced
farther north, into north-central and far northeast WI. System is
quicker moving, with bulk of QPF/freezing rain occurring Friday
evening into mid morning Saturday. Probabilities of seeing over
0.25 inch ice (NBM v5.0) have increased to 35-55 percent, highest
over Vilas and northern Forest into southwest Upper Michigan.
Footprint that could see a coating of ice takes up more area,
reaching into central WI into far northeast WI. Winter Storm Watch
that was issued on mid shift is centered where probabilities for
0.25 inch are highest and where WSSI-p shows good signal for at
least moderate impacts (smaller area of major impacts), so no
changes to that headline. Also, given the ongoing freeing rain,
icing with this first event, will not do any upgrading to that
watch right now.

Another break, but more of a clipper type system expected on
Monday with snow or a mix of rain/snow occurring. As of right now,
only looking at minor impacts for this system with marginal sfc
temps.

&&

.AVIATION...for 06Z TAF Issuance
Issued at 1042 PM CDT Thu Apr 2 2026

Poor flying conditions will persist into the overnight hours as a
departing low pressure system leaves ample low-level moisture in
its wake. Widespread IFR/LIFR ceilings will continue across all
terminals at the start of the TAF period. As winds transition to
the west and become gusty, visibilities are expected to improve to
VFR overnight.

A large area of post-frontal MVFR stratus is forecast to linger
through much of Friday morning, with ceilings likely lifting above
1,000 ft AGL between 09z and 15z. Partial clearing toward VFR is
anticipated by Friday afternoon.

The next significant system will rapidly approach after 21z
Friday. Precipitation will initially begin as rain, but cooling
temperatures will likely lead to a transition to freezing rain
after 02z Saturday across north-central WI. Icing conditions are
expected to impact KRHI by the end of the TAF period. Flight
conditions are likely to deteriorate to IFR in the moderate
precipitation Low- level wind shear will also become a concern
Friday night.

Outlook...Significant freezing rain and icing are expected Friday
night into Saturday, particularly across north-central and far
northeast Wisconsin.

&&

.HYDROLOGY...
Issued at 226 PM CDT Thu Apr 2 2026

The combination of today's and Friday night-Saturday's moisture
laden systems will lead to flooding concerns. A few river sites
are already forecast to reach near minor flood stage this weekend
into early next week. Also, with the ground now saturated, minor
flooding will be possible through the weekend in low-lying and
poor drainage areas.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 1 AM CDT Friday for WIZ005-010>013.

Winter Storm Watch from Friday evening through Saturday morning
for WIZ005-010>013-018-019.
&&

DISCUSSION.....JLA
AVIATION.......MPC
HYDROLOGY......JLA

Hazardous weather outlook, Apr 2, 10:12 PM CDT, 32 minutes before

Hazardous Weather Outlook
National Weather Service Green Bay WI
1012 PM CDT Thu Apr 2 2026

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-040315-
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-
1012 PM CDT Thu Apr 2 2026

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Tonight

An additional glaze of ice is expected over north-central and far
northeast Wisconsin into the early overnight hours. The main
impacts from the ice will be tree damage. Some icy patches may
also develop on area roads. A Winter Weather Advisory remains in
effect.

.DAYS TWO THROUGH SEVEN...Friday through Thursday

A system will bring a wintry mix to northern Wisconsin Friday
night into Saturday. Significant ice accumulations are possible
over north-central WI. Thunderstorms will also be possible with
this system. A Winter Storm Watch has been issued for this system
across northern Wisconsin.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report snow, sleet, and freezing rain
accumulations to the National Weather Service in Green Bay.

LMZ521-522-541>543-040315-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
1012 PM CDT Thu Apr 2 2026

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Tonight

Gusty north to west winds and high waves will create hazardous
conditions for small craft on the lake and bay.

.DAYS TWO THROUGH SEVEN...Friday through Thursday

Hazardous boating conditions are expected on Lake Michigan
through Friday morning. Small Craft Advisories are in effect.

There is potential for thunderstorms Friday night into Saturday.

Hazardous conditions to small craft are also expected at times
from Friday night through Sunday.

MPC

In the hours before

Local storm report, Apr 2, 5:29 PM CDT, 5 hours 15 minutes before

Preliminary Local Storm Report
National Weather Service Green Bay WI
529 PM CDT Thu Apr 2 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0520 PM     Freezing Rain    7 E Knowlton            44.69N 89.55W
04/02/2026  M0.50 Inch       Marathon           WI   Public

&&

Special weather statement, Apr 2, 7:30 PM CDT, 3 hours 14 minutes before

Special Weather Statement
National Weather Service Green Bay WI
730 PM CDT Thu Apr 2 2026

WIZ048>050-030130-
Calumet WI-Winnebago WI-Manitowoc WI-
730 PM CDT Thu Apr 2 2026

...STRONG THUNDERSTORMS WILL IMPACT CALUMET...EASTERN WINNEBAGO AND
MANITOWOC COUNTIES THROUGH 830 PM CDT...

At 729 PM CDT, Doppler radar was tracking strong thunderstorms
extending from near Brandon to near Campbellsport. Movement was
northeast at 50 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Strong thunderstorms will be near...
  Oshkosh, St Anna, and Central Lake Winnebago around 750 PM CDT.
  Chilton around 800 PM CDT.
  St. Nazianz around 805 PM CDT.
  Valders and Northern Lake Winnebago around 810 PM CDT.
  Brillion and High Cliff State Park around 815 PM CDT.
  Appleton around 820 PM CDT.

Other locations impacted by these storms include Pickett, Kiel,
Millhome, Newtonberg, Brothertown, St John, Potter, Brant, Clarks
Mills, and Uw Fox Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4390 8879 4424 8845 4424 8789 4428 8789
      4420 8751 4389 8781 4389 8816 4394 8816
      4394 8840 4389 8840
TIME...MOT...LOC 0029Z 216DEG 42KT 4369 8882 4364 8836

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Kieckbusch

Special weather statement, Apr 2, 8:10 PM CDT, 2 hours 34 minutes before

Special Weather Statement
National Weather Service Green Bay WI
810 PM CDT Thu Apr 2 2026

WIZ031-036>040-045-048>050-074-030200-
Calumet WI-Southern Oconto County WI-Waupaca WI-Shawano WI-
Kewaunee WI-Outagamie WI-Winnebago WI-Waushara WI-Manitowoc WI-
Portage WI-Brown WI-
810 PM CDT Thu Apr 2 2026

...STRONG THUNDERSTORMS WILL IMPACT BROWN...SOUTHEASTERN PORTAGE...
KEWAUNEE...CALUMET...WINNEBAGO...NORTHEASTERN WAUSHARA...WAUPACA...
SOUTHERN OCONTO...OUTAGAMIE...SHAWANO AND MANITOWOC COUNTIES THROUGH
900 PM CDT...

At 809 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Hartman Creek State Park to near Menasha to 8
miles southeast of Two Creeks. Movement was northeast at 55 mph.

HAZARD...Pea size hail and brief torrential rainfall.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Strong thunderstorms will be near...
  Appleton, Waupaca, Kaukauna, Little Chute, New London, Kimberly,
  Two Creeks, Darboy, and Chain O' Lakes-King around 815 PM CDT.
  Denmark around 820 PM CDT.
  Black Creek and Bellevue around 825 PM CDT.
  Green Bay and Kewaunee around 830 PM CDT.
  Clintonville and Luxemburg around 835 PM CDT.
  Algoma, Embarrass, and Navarino Wildlife Area around 840 PM CDT.
  Bay Shore Park and Pulaski around 845 PM CDT.
  Shawano around 850 PM CDT.

Other locations impacted by these storms include Wayside,
Gregorville, Freedom, Allenville, Frazer Corners, Metz, Buckbee, Uw
Fox Valley, Dyckesville, and Shawano Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding and ponding on area roads. Do not drive your
vehicle through flooded roadways.

&&

LAT...LON 4424 8935 4492 8884 4491 8873 4486 8874
      4488 8849 4480 8783 4471 8792 4463 8793
      4469 8780 4480 8771 4480 8765 4468 8774
      4467 8738 4479 8732 4479 8724 4453 8741
      4433 8748 4418 8745 4404 8761 4395 8854
TIME...MOT...LOC 0109Z 213DEG 46KT 4430 8919 4421 8838 4418 8746

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH

Kieckbusch

Local storm report, Apr 2, 8:19 PM CDT, 2 hours 25 minutes before

Preliminary Local Storm Report
National Weather Service Green Bay WI
819 PM CDT Thu Apr 2 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0754 PM     Hail             1 SE Wittman Field      43.97N 88.54W
04/02/2026  M0.25 Inch       Winnebago          WI   Public

&&

Special weather statement, Apr 2, 8:54 PM CDT, 1 hour 50 minutes before

Special Weather Statement
National Weather Service Green Bay WI
854 PM CDT Thu Apr 2 2026

WIZ018>021-030-031-035>037-030400-
Lincoln-Langlade-Menominee-Northern Oconto County-Marathon-
Shawano-Wood-Portage-Waupaca-
854 PM CDT Thu Apr 2 2026

...BRIEF ROUND OF FREEZING RAIN THIS EVENING...

At 845 PM, an area of rain was lifting northeast across central
Wisconsin and the Fox Valley at 45 mph. This rain was moving into
an area where temperatures remain 32 to 33 degrees across Marathon
and Shawano counties, as well as from Lincoln to northern Oconto
counties. As a result, this rain will likely freeze onto elevated
surfaces and lead to slippery roads in some areas.

If traveling in this area, particularly on HWY 29 and HWY 64,
remain alert for changing road conditions and drive with caution.

MPC

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 2, 7:08 PM CDT	Winter Weather Advisory	GRB	Florence, Forest, Marinette, Oneida, Vilas	6 hr
Apr 2, 7:30 PM CDT	Special Weather Statement	GRB	Calumet, Manitowoc	60 min
Apr 2, 8:10 PM CDT	Special Weather Statement	GRB	Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Shawano and 2 more	50 min
Apr 3, 2:30 AM CDT	Ice Storm Warning	GRB	Florence, Forest, Langlade, Lincoln, Marathon, Marinette and 5 more	32 hr
Apr 3, 2:30 AM CDT	Winter Weather Advisory	GRB	Oconto, Portage, Waupaca, Wood	29 hr
Apr 3, 10:42 AM CDT	River Flood Warning	GRB	Outagamie, Shawano, Waupaca	29 days
Apr 3, 2:55 PM CDT	Small Craft Advisory	GRB		46 hr

Nearby

River Flood Warnings in Wisconsin, 2026 Every 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.