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2025 Pacific hurricane season
The 2025 Pacific hurricane season is the future event for the annual Pacific hurricane season for the Northern Hemisphere. The season officially begins on May 15, 2025, and ends on November 30, 2025. For the Central Pacific (140ºW to 180º), the season begins on June 1, 2025, and ends on November 30, 2025. Those dates, adopted by convention, describe the period in which most subtropical or tropical cyclogenesis occurs in the Pacific Ocean. The National Hurricane Center (NHC) will begin issuing routine Tropical Weather Outlooks for east of 140ºW on May 15, 2025, and the Central Pacific Hurricane Center will begin issuing routine Tropical Weather Outlooks for west of 140ºW and east of 180º on June 1, 2025, both on the same date as the seasons starting dates. Seasonal forecastsIn advance of each Pacific hurricane season, forecasts of hurricane activity are issued by forecasters from the United States National Oceanic and Atmospheric Administration (NOAA)'s Climate Prediction Center, and Mexico's Servicio Meteorológico Nacional (SMN). The forecasts include weekly and monthly changes in significant factors that help determine the amount of tropical storms, hurricanes, and major hurricanes within a particular season. According to NOAA, the average Pacific hurricane season between 1991 and 2020 contained about 15 named storms, 8 hurricanes and 4 major hurricanes (Category 3 and higher), as well as an accumulated cyclone energy (ACE) index of 80-115 units. Broadly speaking, ACE is the measure of the power of a tropical or subtropical cyclone multiplied by the length of time it existed. ACE is only calculated for full advisories on specific tropical or subtropical cyclones reaching wind speeds of 39 mph (63 km/h) or higher. NOAA typically describes a season as above-average, average, or below-average depending on the cumulative ACE index, but the number of tropical storms, hurricanes or major hurricanes can also be considered. Storm namesThe following list of names will be used for named storms that form in the North Pacific Ocean east of 140°W during 2025.[1] This is the same list used in the 2019 season.
For storms that form in the North Pacific from 140°W to the International Date Line, the names come from a series of four rotating lists. Names are used one after the other without regard to year, and when the bottom of one list is reached, the next named storm receives the name at the top of the next list.[1] Any named storms that form within the area in 2025 will be listed below. Named storms in the table above that cross into the area during the season are noted (*). Season effectsThe following is a table which will include all of the storms that form in the 2025 Pacific hurricane season. It will include their duration, names, intensities, areas affected, damages, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but were still related to that storm. Damage and deaths include totals while the storm was extratropical, a wave, or a low, and all of the damage figures are in 2025 USD.
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