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POST-TROPICAL CYCLONE ULIKA DISCUSSION NUMBER  17
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP192016
500 AM HST FRI SEP 30 2016
 
With a jet stream over the cyclone, very strong vertical wind shear
is creating a hostile environment. A couple of cumulonimbus clouds
have formed north of the cyclone in the past several hours, but deep
organized convection has been absent since late Thursday night. The
low-level circulation center has been difficult to locate on either
GOES-15 or microwave data. Ulika is now deemed to be a post-tropical
remnant low. I have kept the initial intensity at 30 kt for this
advisory. The remnant low will be steered by a ridge to the
northwest in the lower troposphere until it opens up into a trough
by Saturday evening.
 
This will be the last discussion issued by the Central Pacific
Hurricane Center on this system. For additional information on the
Post-Tropical Cyclone please see High Seas Forecasts issued by the
National Weather Service under AWIPS header HFOHSFNP, WMO header
FZPN40 PHFO, and on the web at
http://www.prh.noaa.gov/hnl/pages/HSFNP.php.
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  30/1500Z 18.2N 142.6W   30 KT  35 MPH...POST-TROP/REMNT LOW
 12H  01/0000Z 18.4N 144.1W   25 KT  30 MPH...POST-TROP/REMNT LOW
 24H  01/1200Z 18.5N 146.5W   20 KT  25 MPH...POST-TROP/REMNT LOW
 36H  02/0000Z...DISSIPATED
 
$$
Forecaster Donaldson
 
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