830  
SXUS83 KAPX 150938  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
538 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 150850Z 250 2 3 GRAND MARAIS  
GRMM4 150850Z 250 2 3 GRAND MARAIS  
PTIM4 150900Z CALM 1 POINT IROQUOIS  
CYAM 150900Z CALM SOO (CANADA)  
KANJ 150855Z 70 3 SAULT STE MARIE  
SWPM4 150900Z CALM 1 69.97 S.W. PIER  
LTRM4 150900Z 80 2 4 62.59 LITTLE RAPIDS  
RCKM4 150900Z CALM 1 70.16 ROCK CUT  
WNEM4 150900Z 150 1 64.39 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 150900Z 350 2 3 67.09 DETOUR VILLAGE  
KDRM 150915Z CALM DRUMMOND ISLAND  
KMCD 150915Z 50 4 MACKINAC ISLAND  
MACM4 150900Z 220 3 73.57 MACKINAC CITY  
KSLH 150916Z 240 3 CHEBOYGAN AIRPORT  
CYGM4 150930Z 210 4 5 CHEBOYGAN MARINA  
KPZQ 150915Z 230 3 ROGERS CITY  
PRIM4 150850Z CALM PRESQUE ISLE LIGHT  
KAPN 150854Z CALM ALPENA GUARD BASE  
APNM4 150920Z 310 1 2 ALPENA HARBOR LIGHT  
TBIM4 150900Z 80 6 THUNDER BAY ISLAND  
SPTM4 150850Z 330 3 8 STURGEON POINT LIGHT  
KOSC 150916Z 360 2 OSCODA  
TAWM4 150840Z 20 3 5 TAWAS POINT  
GSLM4 150840Z 40 9 11 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 150915Z 20 3 MANISTIQUE  
PNLM4 150900Z 260 2 5 68.89 PORT INLAND  
NABM4 150840Z 20 5 8 NAUBINWAY  
KSJX 150915Z 100 3 ST JAMES  
KPLN 150854Z CALM PELLSTON  
KMGN 150915Z 80 4 HARBOR SPRINGS  
KCVX 150915Z 150 5 CHARLEVOIX  
GTLM4 150840Z 130 3 6 GRAND TRAVERSE LIGHT  
KTVC 150853Z CALM TRAVERSE CITY  
BSBM4 150840Z 100 10 14 BIG SABLE POINT  
LDTM4 150900Z 80 5 7 LUDINGTON  
KLDM 150915Z 80 5 LUDINGTON AIRPORT  
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