609  
SXUS83 KAPX 170408  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
1208 AM EDT MON AUG 17 2026  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 170350Z 310 12 13 GRAND MARAIS  
GRMM4 170350Z 310 12 13 GRAND MARAIS  
PTIM4 170330Z 320 11 13 POINT IROQUOIS  
CYAM 170326Z 280 6 SOO (CANADA)  
KANJ 170355Z 270 4 SAULT STE MARIE  
SWPM4 170330Z 270 3 7 69.79 S.W. PIER  
LTRM4 170330Z 280 3 7 62.96 LITTLE RAPIDS  
RCKM4 170330Z 320 5 7 70.51 ROCK CUT  
WNEM4 170330Z 350 5 8 64.39 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 170330Z 320 5 10 65.47 DETOUR VILLAGE  
KDRM 170355Z CALM DRUMMOND ISLAND  
KMCD 170355Z 290 7 MACKINAC ISLAND  
MACM4 170330Z 320 6 11 69.61 MACKINAC CITY  
KSLH 170355Z 310 5 CHEBOYGAN AIRPORT  
CYGM4 170405Z 300 6 13 CHEBOYGAN MARINA  
KPZQ 170355Z 290 6 ROGERS CITY  
PRIM4 170350Z 300 15 25 PRESQUE ISLE LIGHT  
KAPN 170354Z 310 6 ALPENA GUARD BASE  
APNM4 170340Z 310 8 10 ALPENA HARBOR LIGHT  
TBIM4 170300Z 320 9 18 THUNDER BAY ISLAND  
SPTM4 170350Z 330 14 20 STURGEON POINT LIGHT  
KOSC 170357Z 340 10 OSCODA  
GSLM4 170340Z 330 13 16 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 170355Z 320 3 MANISTIQUE  
PNLM4 170330Z 340 5 7 70.87 PORT INLAND  
NABM4 170340Z 340 8 10 NAUBINWAY  
KSJX 170355Z 340 4 ST JAMES  
KPLN 170354Z 320 5 PELLSTON  
KMGN 170355Z 290 4 HARBOR SPRINGS  
KCVX 170355Z 360 6 CHARLEVOIX  
GTLM4 170340Z 20 10 12 GRAND TRAVERSE LIGHT  
KTVC 170353Z 20 8 TRAVERSE CITY  
KFKS 170355Z 10 3 FRANKFORT  
BSBM4 170340Z 60 8 11 BIG SABLE POINT  
LDTM4 170330Z 50 4 7 LUDINGTON  
KLDM 170355Z 40 5 LUDINGTON AIRPORT  
 
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