Hurricane and Tropical Cyclones

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820
WTPA43 PHFO 270231
TCDCP3

Post-Tropical Cyclone Olana Discussion Number   7
NWS Central Pacific Hurricane Center Honolulu HI   CP032026
Issued by NWS National Hurricane Center Miami FL
500 PM HST Mon Oct 26 2026

Olana has lacked organized deep convection for more than 12 hours,
and the circulation has become weak, elongated, and poorly defined.
Therefore, Olana is now considered a post-tropical cyclone. The
initial intensity is lowered to 25 kt, and even this could be
generous.

The remnant low has been moving south-southeastward at about 6 kt
over the past 12-18 hours. The low should turn eastward and weaken
some more overnight and then degenerate into an elongated trough on
Tuesday. Some of the models show the remnant trough merging with a
mid- to upper-level low pressure area that turns northwestward
toward the International Date Line by the end of the week.

This is the last NHC advisory on Olana.

FORECAST POSITIONS AND MAX WINDS

INIT  27/0300Z 13.0N 175.9W   25 KT  30 MPH...POST-TROP/REMNT LOW
 12H  27/1200Z 13.3N 175.1W   20 KT  25 MPH...POST-TROP/REMNT LOW
 24H  28/0000Z...DISSIPATED

$$
Forecaster Cangialosi

817
WTPA23 PHFO 270230
TCMCP3

POST-TROPICAL CYCLONE OLANA FORECAST/ADVISORY NUMBER   7
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP032026
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
0300 UTC TUE OCT 27 2026

POST-TROPICAL CYCLONE CENTER LOCATED NEAR 13.0N 175.9W AT 27/0300Z
POSITION ACCURATE WITHIN  30 NM

PRESENT MOVEMENT TOWARD THE SOUTH-SOUTHEAST OR 150 DEGREES AT   6 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1007 MB
MAX SUSTAINED WINDS  25 KT WITH GUSTS TO  35 KT.
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 13.0N 175.9W AT 27/0300Z
AT 27/0000Z CENTER WAS LOCATED NEAR 13.2N 176.2W

FORECAST VALID 27/1200Z 13.3N 175.1W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.

FORECAST VALID 28/0000Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.0N 175.9W

THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE CENTRAL PACIFIC
HURRICANE CENTER ON THIS SYSTEM

$$
FORECASTER CANGIALOSI

000 
WTPA33 PHFO 270230
TCPCP3
 
BULLETIN
Post-Tropical Cyclone Olana Advisory Number   7
NWS Central Pacific Hurricane Center Honolulu HI   CP032026
Issued by NWS National Hurricane Center Miami FL
500 PM HST Mon Oct 26 2026
 
...OLANA NOW A REMNANT LOW...
...THIS IS THE LAST NHC ADVISORY...
 
 
SUMMARY OF 500 PM HST...0300 UTC...INFORMATION
----------------------------------------------
LOCATION...13.0N 175.9W
ABOUT 500 MI...800 KM WSW OF JOHNSTON ISLAND
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...SSE OR 150 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES
 
 
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 500 PM HST (0300 UTC), the center of Post-Tropical Cyclone Olana 
was located near latitude 13.0 North, longitude 175.9 West. The 
post-tropical cyclone is moving toward the south-southeast near 7 
mph (11 km/h). A turn to the east is expected overnight.
 
Maximum sustained winds have decreased to near 30 mph (45 km/h) 
with higher gusts. Additional weakening is forecast, and Olana is 
expected to dissipate on Tuesday.

The estimated minimum central pressure is 1007 mb (29.74 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
None.
 
 
NEXT ADVISORY
-------------
This is the last public advisory issued by the Central Pacific
Hurricane Center on this system.
 
$$
Forecaster Cangialosi