Watches, Warnings & Advisories



3 products issued by NWS for: 12NM SSW Pentwater MI

Severe Thunderstorm Watch

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 306
NWS STORM PREDICTION CENTER NORMAN OK
540 PM EDT WED JUN 10 2026

SEVERE THUNDERSTORM WATCH 306 IS IN EFFECT UNTIL 1100 PM EDT
FOR THE FOLLOWING LOCATIONS

LMZ043-046-080-844-845-846-847-848-849-868-870-872-874-876-878-
110300-
/O.NEW.KWNS.SV.A.0306.260610T2140Z-260611T0300Z/

CW

.    ADJACENT COASTAL WATERS INCLUDED ARE

NEW BUFFALO MI TO ST JOSEPH MI

MICHIGAN CITY IN TO NEW BUFFALO MI

LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO
MID-LINE OF LAKE.

ST JOSEPH TO SOUTH HAVEN MI

SOUTH HAVEN TO HOLLAND MI

HOLLAND TO GRAND HAVEN MI

GRAND HAVEN TO WHITEHALL MI

WHITEHALL TO PENTWATER MI

PENTWATER TO MANISTEE MI

LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5NM OFFSHORE TO MID
LAKE

LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5NM OFFSHORE TO MID
LAKE

LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5NM OFFSHORE TO
MID LAKE

LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5NM OFFSHORE TO MID
LAKE

LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5NM OFFSHORE TO MID
LAKE

LAKE MICHIGAN FROM ST JOSEPH TO SOUTH HAVEN MI 5NM OFFSHORE TO
MID LAKE

$$
ATTN...WFO...IWX...GRR...APX...IND...







Marine Weather Statement

Marine Weather Statement
National Weather Service Grand Rapids MI
537 PM EDT Wed Jun 10 2026

LMZ846>849-868-870-872-874-102300-
/O.CON.KGRR.MA.W.0036.000000T0000Z-260610T2300Z/
537 PM EDT Wed Jun 10 2026

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 700 PM EDT...

For the following areas...
  Nearshore and Open Waters from Holland to Manistee MI...

At 537 PM EDT, strong thunderstorms were located along a line
extending from 19 nm northwest of Big Sable Point Light to 31 nm east
of Wind Pt. to 13 nm north of Burns Harbor, moving northeast at 60
knots.

HAZARD...Wind gusts to nearly 50 knots.

SOURCE...Radar indicated.

IMPACT...Small craft could be damaged in briefly higher winds and
         suddenly higher waves.

Locations impacted include...
White Lake Pier Heads, Mona Lake Channel, Holland Light, The White
Lake Pierheads, Little Sable Point Light, Grand Haven Light, and
Muskegon Light.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Boaters should seek safe harbor immediately until these storms pass.
Wind gusts to nearly 50 knots, high waves, dangerous lightning, and
heavy rain are possible with these storms.

&&

LAT...LON 4426 8634 4412 8643 4406 8652 4381 8643
      4363 8654 4308 8625 4277 8621 4278 8706
      4343 8715 4371 8712 4421 8696 4428 8644
TIME...MOT...LOC 2137Z 216DEG 58KT 4423 8689 4286 8705 4187 8717

HAIL...0.00IN
WIND...49KTS

$$

THOMAS




Special Marine Warning

Marine Weather Statement
National Weather Service Grand Rapids MI
537 PM EDT Wed Jun 10 2026

LMZ846>849-868-870-872-874-102300-
/O.CON.KGRR.MA.W.0036.000000T0000Z-260610T2300Z/
537 PM EDT Wed Jun 10 2026

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 700 PM EDT...

For the following areas...
  Nearshore and Open Waters from Holland to Manistee MI...

At 537 PM EDT, strong thunderstorms were located along a line
extending from 19 nm northwest of Big Sable Point Light to 31 nm east
of Wind Pt. to 13 nm north of Burns Harbor, moving northeast at 60
knots.

HAZARD...Wind gusts to nearly 50 knots.

SOURCE...Radar indicated.

IMPACT...Small craft could be damaged in briefly higher winds and
         suddenly higher waves.

Locations impacted include...
White Lake Pier Heads, Mona Lake Channel, Holland Light, The White
Lake Pierheads, Little Sable Point Light, Grand Haven Light, and
Muskegon Light.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Boaters should seek safe harbor immediately until these storms pass.
Wind gusts to nearly 50 knots, high waves, dangerous lightning, and
heavy rain are possible with these storms.

&&

LAT...LON 4426 8634 4412 8643 4406 8652 4381 8643
      4363 8654 4308 8625 4277 8621 4278 8706
      4343 8715 4371 8712 4421 8696 4428 8644
TIME...MOT...LOC 2137Z 216DEG 58KT 4423 8689 4286 8705 4187 8717

HAIL...0.00IN
WIND...49KTS

$$

THOMAS