646  
SXUS83 KAPX 150838  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
438 AM EDT SAT AUG 15 2026  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 150750Z CALM 2 GRAND MARAIS  
GRMM4 150750Z CALM 2 GRAND MARAIS  
PTIM4 150800Z CALM 2 POINT IROQUOIS  
CYAM 150800Z CALM SOO (CANADA)  
KANJ 150755Z CALM SAULT STE MARIE  
SWPM4 150800Z CALM 1 69.97 S.W. PIER  
LTRM4 150800Z CALM 1 62.59 LITTLE RAPIDS  
RCKM4 150800Z 280 1 2 70.16 ROCK CUT  
WNEM4 150800Z 330 1 3 64.39 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 150800Z 350 4 6 67.09 DETOUR VILLAGE  
KDRM 150815Z CALM DRUMMOND ISLAND  
KMCD 150815Z 20 6 MACKINAC ISLAND  
MACM4 150800Z CALM 1 73.57 MACKINAC CITY  
KSLH 150815Z 240 3 CHEBOYGAN AIRPORT  
CYGM4 150830Z 210 4 CHEBOYGAN MARINA  
KPZQ 150815Z 200 2 ROGERS CITY  
PRIM4 150750Z CALM PRESQUE ISLE LIGHT  
KAPN 150754Z CALM ALPENA GUARD BASE  
APNM4 150820Z 300 1 2 ALPENA HARBOR LIGHT  
TBIM4 150800Z 60 4 THUNDER BAY ISLAND  
SPTM4 150750Z 340 1 2 STURGEON POINT LIGHT  
KOSC 150757Z 340 2 OSCODA  
TAWM4 150740Z 360 3 5 TAWAS POINT  
GSLM4 150740Z 40 8 9 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 150815Z 10 5 MANISTIQUE  
PNLM4 150800Z 10 6 7 68.89 PORT INLAND  
NABM4 150740Z 10 7 10 NAUBINWAY  
KSJX 150815Z 100 3 ST JAMES  
KPLN 150754Z CALM PELLSTON  
KMGN 150815Z 70 5 HARBOR SPRINGS  
KCVX 150815Z 130 5 CHARLEVOIX  
GTLM4 150740Z 110 4 7 GRAND TRAVERSE LIGHT  
KTVC 150753Z CALM TRAVERSE CITY  
KFKS 150815Z CALM FRANKFORT  
BSBM4 150740Z 100 12 14 BIG SABLE POINT  
LDTM4 150800Z 80 6 8 LUDINGTON  
KLDM 150815Z 100 6 LUDINGTON AIRPORT  
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