753  
WTPA21 PHFO 180231  
TCMCP1  
 
TROPICAL STORM CALVIN FORECAST/ADVISORY NUMBER 26  
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP032023  
0300 UTC TUE JUL 18 2023  
 
NOTICE... LAND-BASED TROPICAL CYCLONE WATCHES AND WARNINGS ARE NO  
LONGER INCLUDED IN THE TROPICAL CYCLONE FORECAST/ADVISORY...(TCM).  
CURRENT LAND-BASED COASTAL WATCHES AND WARNINGS CAN BE FOUND IN THE  
MOST RECENTLY ISSUED TROPICAL CYCLONE PUBLIC ADVISORY...(TCP).  
 
TROPICAL STORM CENTER LOCATED NEAR 17.4N 145.4W AT 18/0300Z  
POSITION ACCURATE WITHIN 10 NM  
 
PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT 19 KT  
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1004 MB  
MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT.  
34 KT....... 90NE 20SE 20SW 90NW.  
12 FT SEAS..190NE 50SE 50SW 190NW.  
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL  
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.  
 
REPEAT...CENTER LOCATED NEAR 17.4N 145.4W AT 18/0300Z  
AT 18/0000Z CENTER WAS LOCATED NEAR 17.3N 144.4W  
 
FORECAST VALID 18/1200Z 17.7N 148.4W  
MAX WIND 40 KT...GUSTS 50 KT.  
34 KT... 90NE 20SE 20SW 90NW.  
 
FORECAST VALID 19/0000Z 18.3N 152.3W  
MAX WIND 40 KT...GUSTS 50 KT.  
34 KT... 90NE 20SE 20SW 90NW.  
 
FORECAST VALID 19/1200Z 18.9N 156.0W  
MAX WIND 35 KT...GUSTS 45 KT.  
34 KT... 40NE 0SE 0SW 40NW.  
 
FORECAST VALID 20/0000Z 19.5N 159.8W  
MAX WIND 30 KT...GUSTS 40 KT.  
 
FORECAST VALID 20/1200Z 19.9N 163.5W  
MAX WIND 25 KT...GUSTS 35 KT.  
 
FORECAST VALID 21/0000Z 20.0N 167.0W...POST-TROP/REMNT LOW  
MAX WIND 25 KT...GUSTS 35 KT.  
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM  
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY  
 
OUTLOOK VALID 22/0000Z...DISSIPATED  
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.4N 145.4W  
 
INTERMEDIATE PUBLIC ADVISORY...WTNT31 PHFO/HFOTCPCP1...AT 18/0600Z  
 
NEXT ADVISORY AT 18/0900Z  
 

 
FORECASTER KODAMA  
 
 
 
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