941
WHUS53 KGRB 210118
SMWGRB
LMZ541-563-210200-
/O.NEW.KGRB.MA.W.0041.260721T0118Z-260721T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
818 PM CDT MON JUL 20 2026
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
NEARSHORE WATERS FROM WASHINGTON ISLAND TO STURGEON BAY...
OPEN WATERS OF LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON
BAY...
* UNTIL 900 PM CDT.
* AT 818 PM CDT, A STRONG THUNDERSTORM WAS LOCATED NEAR ROCK ISLAND,
MOVING SOUTHEAST AT 45 KNOTS.
HAZARD...WIND GUSTS TO 40 KNOTS.
SOURCE...RADAR INDICATED.
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND
SUDDENLY HIGHER WAVES.
* THIS STRONG THUNDERSTORM WILL REMAIN OVER MAINLY OPEN WATERS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.
LAT...LON 4532 8693 4533 8693 4530 8690 4531 8690
4533 8692 4534 8691 4533 8690 4533 8687
4536 8686 4537 8685 4539 8684 4540 8686
4541 8682 4541 8681 4536 8669 4533 8629
4513 8644 4509 8649 4519 8682
TIME...MOT...LOC 0117Z 303DEG 43KT 4543 8677
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 KTS
UHLMANN
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