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TROPICAL STORM WALAKA FORECAST/ADVISORY NUMBER   4
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP012018
1500 UTC SUN SEP 30 2018
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
A HURRICANE WATCH HAS BEEN ISSUED FOR JOHNSTON ATOLL.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT... 
 
A HURRICANE WATCH IS IN EFFECT FOR...
* JOHNSTON ATOLL
 
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE IN
THE WATCH AREA. A WATCH IS TYPICALLY ISSUED 48 HOURS BEFORE THE
ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM FORCE WINDS... 
CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS.
 
INTERESTS IN THE PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT SHOULD
MONITOR THE PROGRESS OF WALAKA.
 
TROPICAL STORM CENTER LOCATED NEAR 11.7N 163.9W AT 30/1500Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT  14 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  998 MB
MAX SUSTAINED WINDS  50 KT WITH GUSTS TO  60 KT.
34 KT....... 60NE  40SE  15SW  60NW.
12 FT SEAS..210NE 120SE  50SW 170NW.
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 11.7N 163.9W AT 30/1500Z
AT 30/1200Z CENTER WAS LOCATED NEAR 11.7N 163.0W
 
FORECAST VALID 01/0000Z 11.9N 165.6W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 10NE   0SE   0SW  10NW.
50 KT... 20NE  10SE  10SW  20NW.
34 KT... 90NE  45SE  40SW  90NW.
 
FORECAST VALID 01/1200Z 12.3N 167.5W
MAX WIND  85 KT...GUSTS 105 KT.
64 KT... 15NE  10SE  10SW  15NW.
50 KT... 30NE  15SE  15SW  30NW.
34 KT...100NE  55SE  50SW 100NW.
 
FORECAST VALID 02/0000Z 13.3N 168.9W
MAX WIND 110 KT...GUSTS 135 KT.
64 KT... 25NE  15SE  15SW  25NW.
50 KT... 45NE  35SE  25SW  45NW.
34 KT...110NE  75SE  65SW 110NW.
 
FORECAST VALID 02/1200Z 14.9N 169.8W
MAX WIND 120 KT...GUSTS 145 KT.
64 KT... 35NE  25SE  25SW  30NW.
50 KT... 60NE  50SE  40SW  55NW.
34 KT...120NE 100SE  80SW 110NW.
 
FORECAST VALID 03/1200Z 19.8N 169.2W
MAX WIND 120 KT...GUSTS 145 KT.
50 KT... 65NE  55SE  40SW  55NW.
34 KT...125NE 105SE  80SW 110NW.
 
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 04/1200Z 27.0N 167.5W
MAX WIND  90 KT...GUSTS 110 KT.
 
OUTLOOK VALID 05/1200Z 30.0N 168.5W
MAX WIND  65 KT...GUSTS  80 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 11.7N 163.9W
 
NEXT ADVISORY AT 30/2100Z
 
$$
FORECASTER JELSEMA
 
 
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