040  
SXUS83 KAPX 181038  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
638 AM EDT TUE AUG 18 2026  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 180950Z 240 10 16 GRAND MARAIS  
GRMM4 180950Z 240 10 16 GRAND MARAIS  
PTIM4 181000Z 120 5 8 POINT IROQUOIS  
CYAM 181000Z 80 6 SOO (CANADA)  
KANJ 181024Z CALM SAULT STE MARIE  
SWPM4 181000Z 90 3 4 69.44 S.W. PIER  
LTRM4 181000Z 60 5 62.96 LITTLE RAPIDS  
RCKM4 181000Z 150 4 6 69.44 ROCK CUT  
WNEM4 181000Z 160 5 7 64.57 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 181000Z 200 7 12 65.66 DETOUR VILLAGE  
KDRM 181015Z 190 6 DRUMMOND ISLAND  
KMCD 181015Z 190 12 MACKINAC ISLAND  
MACM4 181000Z 210 11 13 70.87 MACKINAC CITY  
KSLH 181015Z 190 7 CHEBOYGAN AIRPORT  
CYGM4 181030Z 180 12 17 CHEBOYGAN MARINA  
KPZQ 181015Z 200 8 ROGERS CITY  
PRIM4 180950Z 210 10 13 PRESQUE ISLE LIGHT  
KAPN 180954Z 230 3 ALPENA GUARD BASE  
APNM4 181010Z 250 4 5 ALPENA HARBOR LIGHT  
TBIM4 181000Z 210 13 15 THUNDER BAY ISLAND  
SPTM4 180950Z 210 1 7 STURGEON POINT LIGHT  
KOSC 180957Z 260 3 OSCODA  
TAWM4 180840Z 250 4 8 TAWAS POINT  
GSLM4 180940Z 230 8 9 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 181015Z 240 3 MANISTIQUE  
PNLM4 181000Z 260 11 13 71.96 PORT INLAND  
NABM4 180940Z 210 13 16 NAUBINWAY  
KSJX 181015Z 210 8 ST JAMES  
KPLN 180954Z 150 3 PELLSTON  
KMGN 181015Z 220 5 HARBOR SPRINGS  
KCVX 181015Z 190 7 CHARLEVOIX  
GTLM4 180940Z 230 10 16 GRAND TRAVERSE LIGHT  
KTVC 180953Z 190 5 TRAVERSE CITY  
KFKS 181015Z 200 5 FRANKFORT  
BSBM4 180940Z 190 6 7 BIG SABLE POINT  
LDTM4 181000Z 220 3 10 LUDINGTON  
KLDM 181015Z 220 5 LUDINGTON AIRPORT  
 
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