000 ABPZ20 KNHC 201727 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 AM PDT Tue Aug 20 2024 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Tropical Storm Gilma, located several hundred miles southwest of the southern tip of the Baja California peninsula. Well East-southeast of the Hawaiian Islands (EP90/EP91): A large area of disorganized showers and thunderstorms is associated with two disturbances over the western portion of the East Pacific basin. These systems are expected to merge tonight, and gradual development is anticipated after they merge. A tropical depression will likely form during the next day or so while it moves generally westward at 10 to 15 mph. The system is then expected to strengthen as it moves across the central Pacific basin late this week and move near the Hawaiian Islands late this weekend or early next week. While it is too early to determine the exact location and magnitude of potential impacts, interests in Hawaii should closely monitor this disturbance. Information on this system's development can also be found in the Tropical Weather Outlook for the Central Pacific basin. For marine forecasts, including gale warnings, see High Seas Forecasts issued by the National Weather Service. * Formation chance through 48 hours...high...90 percent. * Formation chance through 7 days...high...90 percent. Eastern and Central Portion of the East Pacific: An area of low pressure is expected to form well to the south of the southwestern coast of Mexico in a couple of days. Environmental conditions should support slow development thereafter, and a tropical depression could form late this week or over the weekend while the system moves west-northwestward over open waters, well offshore of Mexico. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 7 days...medium...50 percent. && High Seas Forecasts issued by the National Weather Service can be found under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php The Tropical Weather Outlook for the Central Pacific basin can be found under AWIPS header HFOTWOCP and WMO header ACPN50 PHFO and on the web at hurricanes.gov $$ Forecaster Cangialosi/Reinhart