624  
SXUS83 KAPX 170938  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
538 AM EDT FRI JUL 17 2026  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 170850Z CALM 1 GRAND MARAIS  
GRMM4 170850Z CALM 1 GRAND MARAIS  
PTIM4 170900Z 330 7 8 POINT IROQUOIS  
CYAM 170900Z CALM SOO (CANADA)  
KANJ 170855Z CALM SAULT STE MARIE  
SWPM4 170900Z 70 4 5 69.07 S.W. PIER  
LTRM4 170900Z 30 4 5 59.54 LITTLE RAPIDS  
RCKM4 170900Z 330 6 69.44 ROCK CUT  
WNEM4 170900Z 360 3 5 60.97 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 170900Z 350 6 8 66.19 DETOUR VILLAGE  
KDRM 170915Z CALM DRUMMOND ISLAND  
KMCD 170915Z 340 2 MACKINAC ISLAND  
MACM4 170900Z 310 2 3 70.51 MACKINAC CITY  
KSLH 170915Z 260 3 CHEBOYGAN AIRPORT  
CYGM4 170930Z 270 4 5 CHEBOYGAN MARINA  
KPZQ 170915Z 290 3 ROGERS CITY  
PRIM4 170750Z 300 6 11 PRESQUE ISLE LIGHT  
KAPN 170854Z 260 3 ALPENA GUARD BASE  
APNM4 170910Z 320 6 7 ALPENA HARBOR LIGHT  
TBIM4 170830Z 340 8 10 THUNDER BAY ISLAND  
SPTM4 170850Z 320 2 11 STURGEON POINT LIGHT  
KOSC 170915Z 250 4 OSCODA  
TAWM4 170840Z 280 3 5 TAWAS POINT  
GSLM4 170840Z 290 7 8 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 170915Z 40 1 MANISTIQUE  
PNLM4 170900Z CALM 1 62.59 PORT INLAND  
NABM4 170840Z 310 1 3 NAUBINWAY  
KPLN 170854Z CALM PELLSTON  
KMGN 170915Z CALM HARBOR SPRINGS  
KCVX 170915Z 140 2 CHARLEVOIX  
GTLM4 170840Z 100 3 4 GRAND TRAVERSE LIGHT  
KTVC 170853Z CALM TRAVERSE CITY  
KFKS 170915Z 310 1 FRANKFORT  
BSBM4 170840Z 60 3 5 BIG SABLE POINT  
LDTM4 170900Z 70 4 5 LUDINGTON  
KLDM 170915Z 50 2 LUDINGTON AIRPORT  
 
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