737  
SXUS83 KAPX 150608  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
208 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 150550Z 180 16 20 GRAND MARAIS  
WFPM4 150540Z 190 10 16 WHITEFISH POINT  
PTIM4 150530Z 130 4 7 POINT IROQUOIS  
CYAM 150500Z 80 6 SOO (CANADA)  
KANJ 150555Z CALM SAULT STE MARIE  
SWPM4 150530Z 90 4 6 69.44 S.W. PIER  
LTRM4 150530Z 90 4 5 62.96 LITTLE RAPIDS  
RCKM4 150530Z 150 4 6 69.79 ROCK CUT  
WNEM4 150530Z 120 4 64.39 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 150530Z 170 10 12 69.79 DETOUR VILLAGE  
KDRM 150555Z 150 3 DRUMMOND ISLAND  
KMCD 150555Z 160 8 14 MACKINAC ISLAND  
MACM4 150530Z 180 11 12 74.11 MACKINAC CITY  
CYGM4 150555Z 180 8 13 CHEBOYGAN MARINA  
SRLM4 150500Z 140 11 SPECTACLE REEF LIGHT  
KPZQ 150555Z 170 3 ROGERS CITY  
PRIM4 150550Z 140 6 8 PRESQUE ISLE LIGHT  
KAPN 150554Z 220 3 ALPENA GUARD BASE  
APNM4 150550Z 130 8 ALPENA HARBOR LIGHT  
TBIM4 150530Z 130 4 5 THUNDER BAY ISLAND  
SPTM4 150550Z CALM STURGEON POINT LIGHT  
KOSC 150537Z 340 1 OSCODA  
GSLM4 150540Z 110 9 11 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 150555Z 130 6 MANISTIQUE  
PNLM4 150530Z 160 13 16 PORT INLAND  
NABM4 150540Z 160 14 18 NAUBINWAY  
KSJX 150555Z 140 8 ST JAMES  
KPLN 150554Z CALM PELLSTON  
KMGN 150555Z 50 5 HARBOR SPRINGS  
KCVX 150555Z 140 5 CHARLEVOIX  
NMIM4 150528Z CALM NORTH MANITOU ISLAND  
GTLM4 150540Z 170 6 13 GRAND TRAVERSE LIGHT  
KTVC 150553Z 250 3 TRAVERSE CITY  
KFKS 150555Z CALM FRANKFORT  
MEEM4 150540Z 100 4 6 MANISTEE HARBOR  
BSBM4 150540Z 100 7 9 BIG SABLE POINT  
LDTM4 150530Z 70 4 LUDINGTON  
KLDM 150555Z 80 4 LUDINGTON AIRPORT  
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