419  
SXUS83 KAPX 181538  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
1138 AM EDT SAT APR 18 2026  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 181450Z 290 25 32 GRAND MARAIS  
GRMM4 181450Z 290 25 32 GRAND MARAIS  
PTIM4 181500Z 280 18 20 POINT IROQUOIS  
CYAM 181500Z 300 22 31 SOO (CANADA)  
KANJ 181455Z 290 14 28 SAULT STE MARIE  
SWPM4 181500Z 290 21 24 S.W. PIER  
LTRM4 181500Z 300 13 17 LITTLE RAPIDS  
RCKM4 181500Z 300 12 22 ROCK CUT  
WNEM4 181500Z 310 17 24 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 181500Z 320 10 20 33.79 DETOUR VILLAGE  
KDRM 181515Z 310 6 14 DRUMMOND ISLAND  
KMCD 181515Z 280 15 19 MACKINAC ISLAND  
MACM4 181500Z 290 14 19 34.69 MACKINAC CITY  
KSLH 181515Z 290 11 23 CHEBOYGAN AIRPORT  
CYGM4 181530Z 310 23 36 CHEBOYGAN MARINA  
KPZQ 181515Z 290 13 22 ROGERS CITY  
PRIM4 181450Z 280 23 33 PRESQUE ISLE LIGHT  
KAPN 181512Z 280 12 20 ALPENA GUARD BASE  
APNM4 181520Z 300 12 16 ALPENA HARBOR LIGHT  
SPTM4 181350Z 180 10 16 STURGEON POINT LIGHT  
KOSC 181515Z 300 15 23 OSCODA  
TAWM4 181440Z 200 9 14 TAWAS POINT  
 
LAKE MICHIGAN  
 
KISQ 181515Z 320 8 MANISTIQUE  
PNLM4 181500Z 320 13 20 PORT INLAND  
NABM4 181440Z 310 12 23 NAUBINWAY  
KSJX 181515Z 310 10 14 ST JAMES  
KPLN 181526Z 300 15 23 PELLSTON  
KMGN 181515Z 310 9 16 HARBOR SPRINGS  
KCVX 181515Z 310 9 CHARLEVOIX  
GTLM4 181440Z 300 7 10 GRAND TRAVERSE LIGHT  
KTVC 181453Z 290 12 TRAVERSE CITY  
KFKS 181515Z 270 9 FRANKFORT  
BSBM4 181440Z 300 14 18 BIG SABLE POINT  
LDTM4 181500Z 300 7 12 LUDINGTON  
KLDM 181515Z 310 10 16 LUDINGTON AIRPORT  
 
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