000 ACPN50 PHFO 180520 TWOCP Tropical Weather Outlook NWS Central Pacific Hurricane Center Honolulu HI 800 PM HST Tue Sep 17 2019 For the central North Pacific...between 140W and 180W: Showers and thunderstorms are associated with an area of low pressure around 500 miles southwest of Honolulu. Environmental conditions are expected to be marginally conducive for some development over the next 24 hours as the system moves toward the north northwest. By late Wednesday 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 830 miles west-southwest of Kauai, remain disorganized. This system is expected to slowly move northeast into unfavorable environmental conditions. By late Wednesday 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 southeast 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