015  
SXUS83 KAPX 180408  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
1208 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 180350Z 190 26 37 GRAND MARAIS  
GRMM4 180350Z 190 26 37 GRAND MARAIS  
PTIM4 180330Z 110 14 16 POINT IROQUOIS  
CYAM 180300Z 90 11 18 SOO (CANADA)  
KANJ 180355Z 120 9 18 SAULT STE MARIE  
SWPM4 180330Z 110 10 13 S.W. PIER  
LTRM4 180330Z 120 10 13 LITTLE RAPIDS  
RCKM4 180330Z 130 14 19 ROCK CUT  
WNEM4 180330Z 150 11 16 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 180330Z 150 15 19 33.97 DETOUR VILLAGE  
KDRM 180355Z 150 10 17 DRUMMOND ISLAND  
KMCD 180355Z 160 8 MACKINAC ISLAND  
MACM4 180330Z 170 11 13 33.61 MACKINAC CITY  
KSLH 180355Z 170 6 CHEBOYGAN AIRPORT  
CYGM4 180400Z 160 6 16 CHEBOYGAN MARINA  
KPZQ 180355Z 180 14 22 ROGERS CITY  
PRIM4 180350Z 160 13 20 PRESQUE ISLE LIGHT  
KAPN 180354Z 160 14 22 ALPENA GUARD BASE  
APNM4 180350Z 140 16 ALPENA HARBOR LIGHT  
SPTM4 180350Z 180 12 18 STURGEON POINT LIGHT  
KOSC 180355Z 180 7 14 OSCODA  
TAWM4 180340Z 150 7 11 TAWAS POINT  
 
LAKE MICHIGAN  
 
KISQ 180355Z CALM MANISTIQUE  
PNLM4 180330Z 170 6 7 PORT INLAND  
NABM4 180340Z 100 7 10 NAUBINWAY  
KSJX 180355Z 190 15 25 ST JAMES  
KPLN 180354Z 170 6 PELLSTON  
KMGN 180355Z 200 7 HARBOR SPRINGS  
KCVX 180355Z 240 10 CHARLEVOIX  
GTLM4 180340Z 230 14 21 GRAND TRAVERSE LIGHT  
KTVC 180353Z 210 7 TRAVERSE CITY  
BSBM4 180340Z 140 12 20 BIG SABLE POINT  
LDTM4 180330Z 140 6 8 LUDINGTON  
KLDM 180355Z 160 13 LUDINGTON AIRPORT  
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