779  
SXUS83 KAPX 181538  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
1138 AM EDT MON MAY 18 2026  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 181450Z 260 8 16 GRAND MARAIS  
GRMM4 181450Z 260 8 16 GRAND MARAIS  
PTIM4 181500Z 130 12 20 POINT IROQUOIS  
CYAM 181500Z 100 7 SOO (CANADA)  
KANJ 181528Z 150 7 SAULT STE MARIE  
SWPM4 181500Z 120 8 10 42.44 S.W. PIER  
LTRM4 181500Z 200 5 7 41.36 LITTLE RAPIDS  
RCKM4 181500Z 150 7 9 44.96 ROCK CUT  
WNEM4 181500Z 150 6 9 42.61 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 181500Z 170 7 8 43.51 DETOUR VILLAGE  
KDRM 181515Z 190 5 DRUMMOND ISLAND  
MACM4 181500Z 350 8 9 46.94 MACKINAC CITY  
KSLH 181515Z 50 5 CHEBOYGAN AIRPORT  
CYGM4 181530Z 50 6 16 CHEBOYGAN MARINA  
KPZQ 181515Z 210 12 17 ROGERS CITY  
PRIM4 181450Z 210 6 14 PRESQUE ISLE LIGHT  
KAPN 181454Z 200 11 16 ALPENA GUARD BASE  
APNM4 181520Z 100 3 5 ALPENA HARBOR LIGHT  
SPTM4 181450Z 170 9 14 STURGEON POINT LIGHT  
KOSC 181515Z 230 14 21 OSCODA  
TAWM4 181440Z 140 3 5 TAWAS POINT  
GSLM4 181440Z 170 4 9 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 181515Z 350 4 MANISTIQUE  
PNLM4 181500Z 170 5 46.76 PORT INLAND  
NABM4 181440Z 170 8 11 NAUBINWAY  
KSJX 181515Z 270 4 ST JAMES  
KPLN 181454Z 230 9 18 PELLSTON  
KMGN 181515Z 270 6 HARBOR SPRINGS  
KCVX 181515Z 310 3 CHARLEVOIX  
GTLM4 181440Z 260 18 19 GRAND TRAVERSE LIGHT  
KTVC 181453Z 200 5 TRAVERSE CITY  
BSBM4 181440Z 160 17 21 BIG SABLE POINT  
LDTM4 181500Z 210 12 17 LUDINGTON  
KLDM 181515Z 190 14 19 LUDINGTON AIRPORT  
 
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