Marine Weather Statement

Marine Weather Statement
National Weather Service Chicago/Romeoville
539 PM CDT Mon Oct 6 2025

LMZ740-777-062330-
539 PM CDT Mon Oct 6 2025

...FRONT MOVING DOWN THE LAKE...

The areas affected include...

  Nearshore Waters from Winthrop Harbor to Wilmette Harbor...
  Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid
Lake...

At 537 PM CDT, Doppler radar indicated a front moving south down the
lake. Winds will increase behind the front with gusts to around 25
to 30 knots. This front was located along a line extending from 12
nm east of Winthrop Harbor to near Waukegan Harbor to 7 nm east of
McHenry, moving south at 15 knots.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners can expect gusty winds to around 30 knots and locally
higher waves. Boaters should seek safe harbor immediately until
these storms pass.

&&

LAT...LON 4247 8752 4212 8746 4211 8752 4211 8760
      4208 8768 4211 8772 4221 8780 4229 8783
      4230 8783 4231 8782 4233 8782 4233 8783
      4237 8783 4237 8782 4236 8782 4239 8780
      4248 8780

$$

Carlaw

Marine Weather Statement
National Weather Service Grand Rapids MI
645 PM EDT Mon Oct 6 2025

LMZ844-845-876-878-062315-
/O.CON.KGRR.MA.W.0036.000000T0000Z-251006T2315Z/
645 PM EDT Mon Oct 6 2025

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 715 PM EDT...

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

At 645 PM EDT, strong thunderstorms producing waterspouts were
located along a line extending from 20 nm west of Saugatuck Pier
Heads to 15 nm northwest of St. Joseph Light, moving east at 30
knots.

HAZARD...Waterspouts, wind gusts 34 knots or greater, and small
         hail.

SOURCE...Radar indicated.

IMPACT...Waterspouts can easily overturn boats and create locally
         hazardous seas. Small craft could be damaged in briefly
         higher winds and suddenly higher waves.

Locations impacted include...
South Haven Light, St. Joseph Light, and St. Joseph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Thunderstorms can produce sudden waterspouts that can result in
locally hazardous seas. Seek safe harbor immediately.

Frequent lightning is occurring with these storms. If caught on the
open water stay below deck if possible, keep away from ungrounded
metal objects.

&&

LAT...LON 4213 8656 4240 8678 4277 8676 4277 8621
      4258 8623 4239 8628 4225 8635 4211 8649
TIME...MOT...LOC 2245Z 258DEG 31KT 4260 8666 4235 8666

WATERSPOUT...OBSERVED
HAIL...<.75IN
WIND...>34KTS

$$

JC