Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
420 AM EDT Sat Apr 4 2026

MIZ037>040-043>046-050>052-056>059-064>067-071>074-050830-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
420 AM EDT Sat Apr 4 2026

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Thunderstorms are expected from early this morning through the
afternoon across Southwest Lower Michigan. At this time severe
thunderstorms are not expected. The main threats will be locally
heavy rain and flooding along with cloud to ground lightning
strikes.


.DAYS TWO THROUGH SEVEN...Sunday through Friday

Minor river flooding will persist into early and mid week as
water routes through the river systems.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Flood Warning
National Weather Service Grand Rapids MI
1134 AM EDT Sat Apr 4 2026

...The National Weather Service in Grand Rapids MI has issued a
Flood Warning for the following rivers in Michigan...

  Grand River at Lansing affecting Ingham County.

  Thornapple River Above Hastings affecting Barry County.

  Thornapple River Near Caledonia affecting Kent County.

  Muskegon River at Bridgeton affecting Newaygo County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Additional information is available at www.weather.gov/grr.

&&

MIC081-051745-
/O.NEW.KGRR.FL.W.0016.260405T1800Z-260409T0300Z/
/CLDM4.U.ER.260405T1800Z.260406T1200Z.260408T1500Z.NO/
1134 AM EDT Sat Apr 4 2026

...FLOOD WARNING IN EFFECT FROM SUNDAY AFTERNOON TO LATE WEDNESDAY
EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Thornapple River near Caledonia.

* WHEN...From Sunday afternoon to late Wednesday evening.

* IMPACTS...At 10.0 feet, Minor flooding of low lying areas occurs.

* ADDITIONAL DETAILS...
  - At 10:45 AM EDT Saturday the stage was 7.9 feet.
  - Bankfull stage is 8.0 feet.
  - Forecast...The river is expected to rise above flood stage
    early tomorrow afternoon to a crest of 10.5 feet Monday
    morning. It will then fall below flood stage late Wednesday
    morning.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.6 feet on 04/02/1960.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4293 8544 4273 8544 4273 8541 4268 8550
      4273 8551 4298 8552


$$

Thomas

Flood Watch
National Weather Service Grand Rapids MI
1134 AM EDT Sat Apr 4 2026

...The National Weather Service in Grand Rapids MI has issued a
Flood Watch for the following rivers in Michigan...

  Grand River at Ionia affecting Ionia County.

  Grand River at Ada affecting Kent County.

  Grand River at Grand Rapids affecting Kent County.

...Forecast flooding changed from Minor to Moderate severity and
increased in duration for the following rivers in Michigan...

  Grand River at Robinson Township affecting Ottawa County.

...The Flood Watch is replaced by a River Flood Warning for the
following rivers in Michigan...

  Muskegon River at Bridgeton affecting Newaygo County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents and those with interests near the river should monitor
rising water levels and be prepared for possible flood warnings.

Stay tuned to further developments by listening to your local radio,
television, or NOAA Weather Radio for further information.

Additional information is available at www.weather.gov/grr.

&&

MIZ057-051745-
/O.NEW.KGRR.FL.A.0005.260407T1030Z-260409T1200Z/
/ADAM4.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1134 AM EDT Sat Apr 4 2026

...FLOOD WATCH IN EFFECT FROM TUESDAY MORNING TO THURSDAY MORNING...

* WHAT...Flooding is possible.

* WHERE...Grand River at Ada.

* WHEN...From Tuesday morning to Thursday morning.

* IMPACTS...At 20.5 feet, Chief Hazy Cloud Park downstream of gage
  begins to flood.

* ADDITIONAL DETAILS...
  - At 10:00 AM EDT Saturday the stage was 13.6 feet.
  - Forecast...Flood stage may be reached Tuesday morning.
  - Flood stage is 20.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4298 8557 4302 8559 4309 8557 4302 8548
      4298 8541 4289 8548

$$

Flood Watch
National Weather Service Grand Rapids MI
1134 AM EDT Sat Apr 4 2026

...The National Weather Service in Grand Rapids MI has issued a
Flood Watch for the following rivers in Michigan...

  Grand River at Ionia affecting Ionia County.

  Grand River at Ada affecting Kent County.

  Grand River at Grand Rapids affecting Kent County.

...Forecast flooding changed from Minor to Moderate severity and
increased in duration for the following rivers in Michigan...

  Grand River at Robinson Township affecting Ottawa County.

...The Flood Watch is replaced by a River Flood Warning for the
following rivers in Michigan...

  Muskegon River at Bridgeton affecting Newaygo County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents and those with interests near the river should monitor
rising water levels and be prepared for possible flood warnings.

Stay tuned to further developments by listening to your local radio,
television, or NOAA Weather Radio for further information.

Additional information is available at www.weather.gov/grr.

&&

MIZ057-051745-
/O.NEW.KGRR.FL.A.0006.260407T1600Z-260410T0000Z/
/GDRM4.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1134 AM EDT Sat Apr 4 2026

...FLOOD WATCH IN EFFECT FROM TUESDAY AFTERNOON TO THURSDAY
EVENING...

* WHAT...Flooding is possible.

* WHERE...Grand River at Grand Rapids.

* WHEN...From Tuesday afternoon to Thursday evening.

* IMPACTS...At 18.0 feet, Expect minor flooding of basements in low
  lying areas in Grand Rapids. Moderate flooding of homes and
  structures occurs upstream at Comstock Park and downstream in
  Robinson Township.

* ADDITIONAL DETAILS...
  - At 10:00 AM EDT Saturday the stage was 10.1 feet.
  - Forecast...Flood stage may be reached early Tuesday
    afternoon.
  - Flood stage is 18.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4297 8583 4295 8578 4298 8572 4297 8563
      4288 8574 4291 8589

$$

Flood Advisory
National Weather Service Grand Rapids MI
1025 AM EDT Sat Apr 4 2026

MIC081-042030-
/O.NEW.KGRR.FA.Y.0007.260404T1425Z-260404T2030Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kent MI-
1025 AM EDT Sat Apr 4 2026

...FLOOD ADVISORY IN EFFECT UNTIL 430 PM EDT THIS AFTERNOON...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...A portion of southwest Michigan, including the following
  county, Kent.

* WHEN...Until 430 PM EDT Saturday.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
  - At 1024 AM EDT, Radar and automated rain gauges indicated
    heavy rain with totals of 1 to 2 inches of rainfall.
    Additional totals of up to 0.25 inches expected through
    Saturday afternoon. Minor flooding is ongoing or expected to
    begin shortly in the advisory area.
  - Some locations that will experience flooding include...
    Grand Rapids, Wyoming, Kentwood, Walker, Grandville, East
    Grand Rapids, Caledonia, Gerald R. Ford International
    Airport, Ada, Cutlerville, Dutton, Byron Center and Cascade.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4277 8578 4291 8578 4301 8579 4302 8548
      4277 8548


$$

Thomas


407
WGUS83 KGRR 041425 RRA
FLSGRR

Flood Advisory
National Weather Service Grand Rapids MI
1025 AM EDT Sat Apr 4 2026

Flood Warning
National Weather Service Grand Rapids MI
851 AM EDT Sat Apr 4 2026

...The National Weather Service in Grand Rapids MI has issued a
Flood Warning for the following rivers in Michigan...

  Grand River near Comstock Park affecting Kent County.

  Sycamore Creek At Holt affecting Ingham County.

  Red Cedar River At East Lansing affecting Ingham County.

  Looking Glass River Near Eagle affecting Clinton County.

  Muskegon River at Newaygo affecting Newaygo County.

.Up to 1 inch of additional rainfall has fallen since Friday across
the Muskegon River Basin, and up to 3 inches across parts of the
Grand and Kalamazoo River Basins. This is expected to cause minor
flooding on several area rivers and potentially moderate flooding at
Comstock Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Additional information is available at www.weather.gov/grr.

&&

MIC081-051500-
/O.NEW.KGRR.FL.W.0011.260405T0600Z-000000T0000Z/
/CMPM4.U.ER.260405T0600Z.260408T0000Z.000000T0000Z.NO/
851 AM EDT Sat Apr 4 2026

...FLOOD WARNING IN EFFECT FROM LATE TONIGHT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Grand River near Comstock Park.

* WHEN...From late tonight until further notice.

* IMPACTS...At 14.0 feet, Homes along Willow Drive and Abrigador
  Trail have flooded basements and Abrigador Trail is closed.
  Riverbank Street northeast in Plainfield Township is flooded and
  homes along Riverbank Street have flooded basements. Konkle Drive
  northeast in Plainfield township is flooded.

* ADDITIONAL DETAILS...
  - At 10:49 PM EDT Friday the stage was 9.6 feet.
  - Bankfull stage is 11.0 feet.
  - Forecast...The river is expected to rise above flood stage
    just after midnight tonight and continue rising to a crest of
    14.1 feet Tuesday evening.
  - Flood stage is 12.0 feet.
  - Flood History...This crest compares to a previous crest of
    14.0 feet on 03/16/1985.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4298 8572 4308 8570 4309 8557 4302 8559
      4303 8562 4297 8563


$$

Hydrologic Outlook
MIC005-015-025-035-037-045-057-065-067-073-075-077-081-085-105-107-
117-121-123-127-133-139-159-041900-

Hydrologic Outlook
National Weather Service Grand Rapids MI
1115 AM EDT Fri Apr 3 2026

...Flooding Possible This Weekend...

2 To 4 inches of rain has fallen across a large portion of Lower
Michigan over the last week. Rivers are now rising, and soils are
saturated. A final round of rain from this storm cycle is expected
to impact our area late Friday night and continue through the day
Saturday. Most areas will receive an additional 0.5 to 1.0 inches of
rain, with some indications that a few counties could end up with a
streak of more like 1.5 to 2.5 inches of rain or more. If this
heavier rain tracks over an urban area like Kalamazoo, Grand Rapids,
or Lansing, localized urban flooding issues are likely.

Meanwhile, as all this water continues to find its way into our
river systems, minor flooding is becoming likely on parts of the
Muskegon River, and is also a possibility on some of the typical
flood-prone trouble spots in the Grand River watershed, including in
Comstock Park and Maple River. Much will depend on exactly where the
heaviest swath of the upcoming rain falls, but the bottom line is
that some minor river flooding is becoming more likely across parts
of Southwest and West-Central Michigan as all this rain continues to
add up.

$$

AMD

Hazard Report Provided By forecast.weather.gov