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Tropical Storm Cosme (2025)
The 2025 Pacific hurricane season is the current Pacific hurricane season for the Northern Hemisphere. The season officially began on May 15, 2025, and ends on November 30, 2025. For the Central Pacific ( 140ºW to 180º), the season began on June 1, 2025, and it too ends on November 30, 2025. These dates, adopted by convention, describe the period in which most subtropical or tropical cyclogenesis occurs in the Pacific Ocean. In contrast to last season, which was the latest starting Pacific hurricane season in the satellite-era, there were multiple early season storms this year. Tropical Storm Alvin formed off the coast of southern Mexico on May 28, and remained over the open waters of the Eastern Pacific. Four storms formed in a ten-day period from June 8 to June 17, including Hurricane Barbara and Tropical Storm Dalila, both of which grazed the southwestern coast of Mexico, and Hurricane Erick, the earliest fifth named storm on record in the Eastern Pacific and the earlies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Erick (2025)
Hurricane Erick was a powerful tropical cyclone that brought heavy rainfall to parts of southern and southwestern Mexico in June 2025. The fifth tropical cyclone naming, named storm, second hurricane, and first major hurricane of the 2025 Pacific hurricane season, Erick was the earliest fifth named storm on record in the Eastern Pacific Ocean, Pacific basin and the earliest major hurricane to make landfall on either coast of Mexico (Pacific or Atlantic). Erick originated from a weather disturbance associated with a tropical wave located south of Mexico on June 10. The system developed into a tropical storm on June 17. Then, as it turned northwestward, it entered a phase of rapid intensification. By early June 18, Erick had intensified into a hurricane and continued strengthening, reaching its peak as a Category 4 hurricane with sustained winds of and a minimum central pressure of . Erick made landfall in Oaxaca on the morning of June 19 with Category 3 sustained winds of 125 mp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accumulated Cyclone Energy
Accumulated cyclone energy (ACE) is a metric used to compare overall activity of tropical cyclones, utilizing the available records of windspeeds at six-hour intervals to synthesize storm duration and strength into a single index value. The ACE index may refer to a single storm or to groups of storms such as those within a particular month, a full season or combined seasons. It is calculated by summing the square of tropical cyclones' maximum sustained winds, as recorded every six hours, but only for windspeeds of at least tropical storm strength (≥ 34 kn; 63 km/h; 39 mph); the resulting figure is divided by 10,000 to place it on a more manageable scale. The calculation originated as the Hurricane Destruction Potential (HDP) index, which sums the squares of tropical cyclones' maximum sustained winds while at hurricane strength, at least 64 knots (≥ 119 km/h; 74 mph) at six-hour recorded intervals across an entire season. The HDP index was later modified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Shear
Wind shear (; also written windshear), sometimes referred to as wind gradient, is a difference in wind speed and/or direction over a relatively short distance in the atmosphere. Atmospheric wind shear is normally described as either vertical or horizontal wind shear. Vertical wind shear is a change in wind speed or direction with a change in altitude. Horizontal wind shear is a change in wind speed with a change in lateral position for a given altitude. Wind shear is a microscale meteorological phenomenon occurring over a very small distance, but it can be associated with mesoscale or synoptic scale weather features such as squall lines and cold fronts. It is commonly observed near microbursts and downbursts caused by thunderstorms, fronts, areas of locally higher low-level winds referred to as low-level jets, near mountains, radiation inversions that occur due to clear skies and calm winds, buildings, wind turbines, and sailboats. Wind shear has significant effects on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Surface Temperature
Sea surface temperature (or ocean surface temperature) is the ocean temperature, temperature of ocean water close to the surface. The exact meaning of ''surface'' varies in the literature and in practice. It is usually between and below the sea surface. Sea surface temperatures greatly modify air masses in the Atmosphere of Earth, Earth's atmosphere within a short distance of the shore. The thermohaline circulation has a major impact on average sea surface temperature throughout most of the world's oceans. Warm sea surface temperatures can develop and Tropical cyclogenesis, strengthen cyclones over the ocean. Tropical cyclones can also cause a cool wake. This is due to turbulent mixing of the upper of the ocean. Sea surface temperature changes during the day. This is like the air above it, but to a lesser degree. There is less variation in sea surface temperature on breezy days than on calm days. Coastal sea surface temperatures can cause offshore winds to generate upwelling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Kiko (1989)
Hurricane Kiko was one of the strongest tropical cyclones on record to have made landfall on Mexico's Baja California peninsula. The eleventh named storm of the 1989 Pacific hurricane season, Kiko formed out of a large mesoscale convective system on August 25. Slowly tracking northwestward, the storm rapidly intensified into a hurricane early the next day. Strengthening continued until early August 27, when Kiko reached its peak intensity with winds of . The storm turned west at this time, and at around 0600 UTC, the storm made landfall near Punta Arena, Mexico at the southern tip of Baja California Sur. The hurricane rapidly weakened into a tropical storm later that day and further into a tropical depression by August 28, shortly after entering the Pacific Ocean. The depression persisted for another day while tracking southward, before being absorbed by nearby Tropical Storm Lorena. Though Kiko made landfall as a Category 3 hurricane, its impact was relatively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane Enrique (2021)
Hurricane Enrique was a Category 1 Pacific hurricane that brought heavy rainfall and flooding to much of western Mexico in late June 2021. The fifth named storm and first hurricane of the 2021 Pacific hurricane season, Enrique developed from a tropical wave the entered the Pacific Ocean off the coast of Nicaragua on June 22. In an environment conducive for intensification, the disturbance moved west-northwestward and developed into a tropical storm by 6:00 UTC on June 25, as it was already producing winds of , and received the name ''Enrique''. Enrique strengthened steadily within an environment of warm waters and low-to-moderate wind shear while continuing its northwestward motion. By 12:00 UTC on June 26, Enrique had intensified into a Category 1 hurricane as the storm turned more northwestward. Nearing the coast of Mexico, Enrique reached its peak intensity around 6:00 UTC the following day, with maximum sustained winds of and a minimum barometric pressure of . Enrique, passing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KPTV
KPTV (channel 12) is a television station in Portland, Oregon, United States, affiliated with the Fox network. It is owned by Gray Media alongside Vancouver, Washington–licensed MyNetworkTV affiliate KPDX (channel 49). The two stations share studios on NW Greenbrier Parkway in Beaverton; KPTV's transmitter is located in the Sylvan-Highlands section of Portland. History Early years KPTV signed on the air on September 18, 1952, as Oregon's first television station. KPTV originally broadcast on channel 27, making it also the nation's first commercial television station to broadcast on the UHF band. (the first experimental UHF station was Bridgeport, Connecticut's KC2XAK on channel 24). The station was originally owned by Empire Coil. As Portland's only television station at the time, it carried programming from all four networks of the time: ABC, CBS, NBC and the DuMont Television Network. CBS programming was dropped from KPTV's schedule when Portland's first VHF stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Associated Press
The Associated Press (AP) is an American not-for-profit organization, not-for-profit news agency headquartered in New York City. Founded in 1846, it operates as a cooperative, unincorporated association, and produces news reports that are distributed to its members, major U.S. daily newspapers and radio and television broadcasters. Since the award was established in 1917, the AP has earned 59 Pulitzer Prizes, including 36 for photography. The AP is also known for its widely used ''AP Stylebook'', its AP polls tracking National Collegiate Athletic Association, NCAA sports, sponsoring the National Football League's annual awards, and its election polls and results during Elections in the United States, US elections. By 2016, news collected by the AP was published and republished by more than 1,300 newspapers and broadcasters. The AP operates 235 news bureaus in 94 countries, and publishes in English, Spanish, and Arabic. It also operates the AP Radio Network, which provides twice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclogenesis
Tropical cyclogenesis is the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropics, tropical cyclogenesis occur are distinctly different from those through which temperate cyclogenesis occurs. Tropical cyclogenesis involves the development of a warm core, warm-core cyclone, due to significant convection in a favorable atmospheric environment. Tropical cyclogenesis requires six main factors: sufficiently warm sea surface temperatures (at least ), atmospheric instability, high humidity in the lower to middle levels of the troposphere, enough Coriolis force to develop a low-pressure area, low-pressure center, a pre-existing low-level focus or disturbance, and low vertical wind shear. Tropical cyclones tend to develop during the summer, but have been noted in nearly every month in tropical cyclone basins, most basins. Climate cycles such as ENSO and the Madden–Julian oscillation modulate the timing and frequency of tropical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saffir–Simpson Scale
The Saffir–Simpson hurricane wind scale (SSHWS) is a tropical cyclone intensity scale that classifies hurricanes—which in the Western Hemisphere are tropical cyclones that exceed the intensities of tropical depressions and tropical storms—into five categories distinguished by the intensities of their sustained winds. This measuring system was formerly known as the Saffir–Simpson hurricane scale, or SSHS. To be classified as a hurricane, a tropical cyclone must have one-minute-average maximum sustained winds at above the surface of at least 74 mph (64 kn, 119 km/h; Category 1). The highest classification in the scale, Category 5, consists of storms with sustained winds of at least 157 mph (137 kn, 252 km/h). The classifications can provide some indication of the potential damage and flooding a hurricane will cause upon landfall. The Saffir–Simpson hurricane wind scale is based on the highest wind speed averaged over a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 Pacific Hurricane Season
The 2021 Pacific hurricane season was a moderately active Pacific hurricane season, with above-average activity in terms of number of named storms, but below-average activity in terms of major hurricanes, as 19 named storms, 8 hurricanes, and 2 major hurricanes formed in all. It also had a near-normal accumulated cyclone energy (ACE). The season officially began on May 15, 2021 in the Eastern Pacific Ocean (east of from 140°W), and on June 1, 2021, in the Central Pacific (from 140°W to the International Date Line) in the Northern Hemisphere. The season ended in both regions on November 30, 2021. These dates historically describe the period each year when most tropical cyclogenesis occurs in these regions of the Pacific and are adopted by convention. However, the formation of tropical cyclones is possible at any time of the year, as illustrated by the formation of Tropical Storm Andres on May 9, which was the earliest forming tropical storm on record in the Eastern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Decadal Oscillation
The Pacific decadal oscillation (PDO) is a robust, recurring pattern of ocean-atmosphere climate variability centered over the mid-latitude Pacific basin. The PDO is detected as warm or cool surface waters in the Pacific Ocean, north of 20°N. Over the past century, the amplitude of this climate pattern has varied irregularly at interannual-to-interdecadal time scales (meaning time periods of a few years to as much as time periods of multiple decades). There is evidence of reversals in the prevailing polarity (meaning changes in cool surface waters versus warm surface waters within the region) of the oscillation occurring around 1925, 1947, and 1977; the last two reversals corresponded with dramatic shifts in salmon production regimes in the North Pacific Ocean. This climate pattern also affects coastal sea and continental surface air temperatures from Alaska to California. During a " warm", or "positive", phase, the west Pacific becomes cooler and part of the eastern ocean warm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
