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Central North Pacific Tropical Weather Outlook



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ACPN50 PHFO 181149
TWOCP 

Tropical Weather Outlook
NWS Central Pacific Hurricane Center Honolulu HI
200 AM HST Wed Sep 18 2019

For the central North Pacific...between 140W and 180W:

Showers and thunderstorms are associated with an area of low
pressure around 480 miles west-southwest of Honolulu. Environmental
conditions are expected to be marginally conducive for some
development through today as the system moves toward the north
northwest. By late tonight or Thursday, chances for development drop
off significantly as the low interacts with another disturbance
approaching from the northwest. Regardless of development, this
system is expected to bring locally gusty winds and heavy rain to
portions of the Papahanaumokuakea Marine National Monument over the
next several days. 
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...medium...40 percent.

Showers and thunderstorms associated with an elongated area of low
pressure, located about 880 miles west of Honolulu, Hawaii, remain
disorganized. This system is expected to slowly move north northeast
into unfavorable environmental conditions later today. By late
tonight or Thursday, chances for development drop off significantly
as the low interacts with another disturbance approaching from the
northwest. Regardless of development, this system is expected to
bring locally gusty winds and heavy rain to portions of
the Papahanaumokuakea Marine National Monument over the next 
several days. 
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

An elongated area of low pressure lies around 700 miles
south of Hilo, Hawaii. Slow development is possible during the next
several days while the area slowly moves northwestward, though the
environmental conditions are only marginally favorable.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.

Elsewhere, no tropical cyclones are expected during the next 5 days.

$$
Forecaster Foster