Marine Weather Statement
Issued by NWS Grand Rapids, MI

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000
FZUS73 KGRR 180404
MWSGRR

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1204 AM EDT THU MAY 18 2017

LMZ844>849-868-870-872-874-876-878-180600-
1204 AM EDT THU MAY 18 2017

...STRONG THUNDERSTORMS APPROACHING THE WATERS...

THE AREAS AFFECTED INCLUDE...
  NEARSHORE AND OPEN WATERS FROM ST JOSEPH TO MANISTEE MI...

AT 1159 PM EDT...DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS...CAPABLE OF PRODUCING WINDS TO AROUND 50 KNOTS. THESE
THUNDERSTORMS WERE LOCATED FROM NEAR SHEBOYGAN WISCONSIN TO WEST OF
CHICAGO ILLINOIS...MOVING NORTHEAST AT 65 KNOTS.

THESE STORMS AND THE WIND ASSOCIATED WITH THEM ARE EXPECTED TO
GRADUALLY DIMINISH AS THEY APPROACH THE MICHIGAN WATERS OF LAKE
MICHIGAN. THEY COULD STILL HAVE WINDS OF 30-40 KNOTS AS THEY MOVE
OVER THE WATERS, AND MAY REQUIRE A SPECIAL MARINE WARNING.

STRONG THUNDERSTORMS WILL BE NEAR...MANISTEE LIGHTHOUSE AROUND 1245
AM EDT. THE LITTLE SABLE POINT LIGHTHOUSE AROUND 100 AM EDT. THE
GRAND HAVEN PIERHEADS AND THE MONA LAKE CHANNEL AROUND 135 AM EDT.
THE MUSKEGON PIERHEADS AROUND 140 AM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MARINERS CAN EXPECT GUSTY WINDS TO AROUND 30 KNOTS...LOCALLY HIGHER
WAVES...AND LIGHTNING STRIKES. BOATERS SHOULD SEEK SAFE HARBOR
IMMEDIATELY UNTIL THESE STORMS PASS.

THESE STRONG THUNDERSTORMS WILL LIKELY PRODUCE WINDS TO AROUND 30
KNOTS...AND COULD POSE A SERIOUS HAZARD FOR BOATERS. A SPECIAL MARINE
WARNING MAY EVENTUALLY BE REQUIRED WHEN THESE STORMS REACH THE
NEARSHORE WATERS. BOATERS SHOULD CONSIDER HEADING FOR SHORE BEFORE
THESE STORMS ARRIVE.

&&

LAT...LON 4211 8649 4213 8696 4342 8715 4370 8712
      4421 8697 4428 8642 4425 8634 4406 8651
      4383 8643 4362 8654 4308 8625 4270 8621
      4235 8630 4212 8649

$$

NJJ



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