803 
 WTPA21 PHFO 252052
 TCMCP1
 
 TROPICAL STORM NIALA FORECAST/ADVISORY NUMBER   4
 NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP062015
 2100 UTC FRI SEP 25 2015
  
 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
  
 A TROPICAL STORM WATCH HAS BEEN ISSUED FOR HAWAII COUNTY.
  
 SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
  
 A TROPICAL STORM WATCH IS IN EFFECT FOR...
 * HAWAII COUNTY
  
 A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
 POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
  
 INTERESTS ELSEWHERE IN THE MAIN HAWAIIAN ISLANDS SHOULD MONITOR THE
 PROGRESS OF TROPICAL STORM NIALA.
  
 TROPICAL STORM CENTER LOCATED NEAR 15.7N 150.4W AT 25/2100Z
 POSITION ACCURATE WITHIN  20 NM
  
 PRESENT MOVEMENT TOWARD THE NORTHWEST OR 320 DEGREES AT   6 KT
  
 ESTIMATED MINIMUM CENTRAL PRESSURE 1001 MB
 MAX SUSTAINED WINDS  40 KT WITH GUSTS TO  50 KT.
 34 KT....... 70NE  55SE   0SW  35NW.
 12 FT SEAS.. 40NE   0SE   0SW   0NW.
 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 15.7N 150.4W AT 25/2100Z
 AT 25/1800Z CENTER WAS LOCATED NEAR 15.5N 150.2W
  
 FORECAST VALID 26/0600Z 16.5N 151.3W
 MAX WIND  45 KT...GUSTS  55 KT.
 34 KT... 75NE  60SE  20SW  40NW.
  
 FORECAST VALID 26/1800Z 17.2N 152.5W
 MAX WIND  45 KT...GUSTS  55 KT.
 34 KT... 80NE  60SE  25SW  45NW.
  
 FORECAST VALID 27/0600Z 17.4N 153.6W
 MAX WIND  45 KT...GUSTS  55 KT.
 34 KT... 80NE  60SE  25SW  45NW.
  
 FORECAST VALID 27/1800Z 17.3N 154.5W
 MAX WIND  40 KT...GUSTS  50 KT.
 34 KT... 75NE  50SE  20SW  45NW.
  
 FORECAST VALID 28/1800Z 17.1N 155.8W
 MAX WIND  35 KT...GUSTS  45 KT.
 34 KT... 60NE   0SE   0SW  55NW.
  
 EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 125 NM
 ON DAY 4 AND 150 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
  
 OUTLOOK VALID 29/1800Z 16.8N 157.0W
 MAX WIND  30 KT...GUSTS  40 KT.
  
 OUTLOOK VALID 30/1800Z 16.3N 158.3W
 MAX WIND  25 KT...GUSTS  35 KT.
  
 REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.7N 150.4W
  
 NEXT ADVISORY AT 26/0300Z
  
 $$
 FORECASTER WROE