591  
SXUS83 KAPX 150938  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
538 AM EDT FRI AUG 15 2025  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 150850Z 180 18 21 GRAND MARAIS  
WFPM4 150840Z 190 12 17 WHITEFISH POINT  
PTIM4 150900Z 130 5 7 POINT IROQUOIS  
CYAM 150900Z 80 5 SOO (CANADA)  
KANJ 150907Z 70 3 SAULT STE MARIE  
SWPM4 150900Z 90 4 6 69.44 S.W. PIER  
LTRM4 150900Z 70 4 63.31 LITTLE RAPIDS  
RCKM4 150900Z 150 5 7 69.61 ROCK CUT  
WNEM4 150900Z 170 4 7 64.21 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 150900Z 180 10 13 69.61 DETOUR VILLAGE  
KDRM 150915Z 180 4 DRUMMOND ISLAND  
KMCD 150915Z 150 8 MACKINAC ISLAND  
MACM4 150900Z 180 11 13 73.21 MACKINAC CITY  
CYGM4 150925Z 170 6 14 CHEBOYGAN MARINA  
SRLM4 150800Z 160 15 SPECTACLE REEF LIGHT  
KPZQ 150915Z 200 7 ROGERS CITY  
PRIM4 150850Z CALM PRESQUE ISLE LIGHT  
KAPN 150928Z CALM ALPENA GUARD BASE  
APNM4 150920Z 250 3 4 ALPENA HARBOR LIGHT  
TBIM4 150900Z 240 3 THUNDER BAY ISLAND  
SPTM4 150850Z 200 1 2 STURGEON POINT LIGHT  
KOSC 150857Z 310 3 OSCODA  
GSLM4 150840Z 120 7 8 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 150915Z 180 4 MANISTIQUE  
PNLM4 150900Z 180 12 14 PORT INLAND  
NABM4 150840Z 180 16 19 NAUBINWAY  
KSJX 150915Z 160 6 ST JAMES  
KPLN 150854Z CALM PELLSTON  
KMGN 150915Z 170 5 HARBOR SPRINGS  
KCVX 150915Z 150 5 CHARLEVOIX  
NMIM4 150828Z CALM NORTH MANITOU ISLAND  
GTLM4 150840Z 160 5 11 GRAND TRAVERSE LIGHT  
KTVC 150853Z CALM TRAVERSE CITY  
KFKS 150915Z CALM FRANKFORT  
MEEM4 150840Z 110 6 8 MANISTEE HARBOR  
BSBM4 150840Z 110 8 11 BIG SABLE POINT  
LDTM4 150900Z 80 4 5 LUDINGTON  
KLDM 150915Z 90 3 LUDINGTON AIRPORT  
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