279  
SXUS83 KAPX 180538  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
138 AM EDT SAT APR 18 2026  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 180450Z 180 12 16 GRAND MARAIS  
GRMM4 180450Z 180 12 16 GRAND MARAIS  
PTIM4 180500Z 110 10 12 POINT IROQUOIS  
CYAM 180500Z 90 7 SOO (CANADA)  
KANJ 180455Z 110 8 15 SAULT STE MARIE  
SWPM4 180500Z 120 8 14 S.W. PIER  
LTRM4 180500Z 130 9 15 LITTLE RAPIDS  
RCKM4 180500Z 130 9 10 ROCK CUT  
WNEM4 180500Z 140 7 11 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 180500Z 160 11 16 33.97 DETOUR VILLAGE  
KDRM 180515Z 140 11 16 DRUMMOND ISLAND  
KMCD 180515Z 160 9 MACKINAC ISLAND  
MACM4 180500Z 160 4 5 33.44 MACKINAC CITY  
KSLH 180515Z 160 7 CHEBOYGAN AIRPORT  
CYGM4 180530Z 160 12 24 CHEBOYGAN MARINA  
KPZQ 180515Z 170 13 18 ROGERS CITY  
PRIM4 180450Z 160 7 17 PRESQUE ISLE LIGHT  
KAPN 180454Z 150 12 ALPENA GUARD BASE  
APNM4 180520Z 140 17 19 ALPENA HARBOR LIGHT  
SPTM4 180450Z 180 6 20 STURGEON POINT LIGHT  
KOSC 180515Z 170 11 OSCODA  
TAWM4 180440Z 150 10 12 TAWAS POINT  
 
LAKE MICHIGAN  
 
KISQ 180515Z 160 5 MANISTIQUE  
PNLM4 180500Z 230 8 12 PORT INLAND  
NABM4 180440Z 120 5 7 NAUBINWAY  
KSJX 180515Z 160 8 14 ST JAMES  
KPLN 180454Z 200 8 PELLSTON  
KMGN 180515Z CALM HARBOR SPRINGS  
KCVX 180515Z 150 7 CHARLEVOIX  
GTLM4 180440Z 200 4 8 GRAND TRAVERSE LIGHT  
KTVC 180453Z 170 9 17 TRAVERSE CITY  
KFKS 180515Z 170 10 FRANKFORT  
BSBM4 180440Z 160 17 24 BIG SABLE POINT  
LDTM4 180500Z 180 7 9 LUDINGTON  
KLDM 180515Z 150 4 LUDINGTON AIRPORT  
 
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