630  
SXUS83 KAPX 181638  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
1238 PM 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 181540Z 290 30 33 GRAND MARAIS  
GRMM4 181540Z 290 30 33 GRAND MARAIS  
PTIM4 181600Z 280 20 24 POINT IROQUOIS  
CYAM 181600Z 290 20 27 SOO (CANADA)  
KANJ 181555Z 290 17 30 SAULT STE MARIE  
SWPM4 181600Z 300 20 25 S.W. PIER  
LTRM4 181600Z 290 17 24 LITTLE RAPIDS  
RCKM4 181600Z 280 17 25 ROCK CUT  
WNEM4 181600Z 310 17 24 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 181600Z 330 10 17 33.79 DETOUR VILLAGE  
KDRM 181615Z 300 6 14 DRUMMOND ISLAND  
KMCD 181616Z 280 15 23 MACKINAC ISLAND  
MACM4 181600Z 300 14 21 34.69 MACKINAC CITY  
KSLH 181615Z 290 16 23 CHEBOYGAN AIRPORT  
CYGM4 181630Z 300 23 36 CHEBOYGAN MARINA  
KPZQ 181615Z 280 10 20 ROGERS CITY  
PRIM4 181550Z 290 20 28 PRESQUE ISLE LIGHT  
KAPN 181554Z 290 10 19 ALPENA GUARD BASE  
APNM4 181620Z 300 14 19 ALPENA HARBOR LIGHT  
SPTM4 181550Z 300 12 24 STURGEON POINT LIGHT  
KOSC 181615Z 310 16 22 OSCODA  
TAWM4 181540Z 290 15 26 TAWAS POINT  
 
LAKE MICHIGAN  
 
KISQ 181615Z 290 7 MANISTIQUE  
PNLM4 181600Z 330 11 17 PORT INLAND  
NABM4 181540Z 320 12 23 NAUBINWAY  
KSJX 181615Z 330 10 ST JAMES  
KPLN 181554Z 300 16 22 PELLSTON  
KMGN 181615Z 280 5 17 HARBOR SPRINGS  
KCVX 181615Z 280 12 CHARLEVOIX  
GTLM4 181540Z 300 14 17 GRAND TRAVERSE LIGHT  
KTVC 181553Z 310 11 TRAVERSE CITY  
KFKS 181615Z 290 11 16 FRANKFORT  
BSBM4 181540Z 290 9 10 BIG SABLE POINT  
LDTM4 181600Z 290 8 12 LUDINGTON  
KLDM 181615Z 290 9 16 LUDINGTON AIRPORT  
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