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Pacific Northwest Windstorm
Pacific Northwest windstorms, sometimes colloquially known as Big Blows, are extratropical cyclones which form in the Pacific basin, and affect land areas in the Pacific Northwest of the United States and British Columbia, Canada. They form as cyclonic windstorms associated with areas of low atmospheric pressure that track across the North Pacific Ocean towards western North America. Deep low pressure areas are relatively common over the North Pacific. They are most common in the winter months. On average, the month when most windstorms form is November or December. The closest analogue to these storms are European windstorms, which develop over the eastern portion of the North Atlantic Ocean as opposed to the North Pacific. Nor'easters, a similar class of extratropical cyclones, commonly affect the east coast of North America. While the storms on the East Coast are named "nor'easters", the Pacific Northwest windstorms are not called "nor'westers" because the cyclones' primary wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infrared Satellite Image Provided By The US Naval Research Labortory
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed radiant heat. In 1800 the astronomer Sir William Herschel discovered tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercer Island, Washington
Mercer Island is a city in King County, Washington, United States, located on an island of the same name in the southern portion of Lake Washington. Mercer Island is in the Seattle metropolitan area, with Seattle to its west and Bellevue to its east. Mercer Island is connected to the mainland on both sides by bridges carrying Interstate 90, with the city of Seattle to the west and the city of Bellevue to the east. The Lacey V. Murrow Memorial Bridge and the parallel Homer M. Hadley Memorial Bridge are floating bridges that span Lake Washington and carry, respectively, eastbound and westbound lanes of Interstate 90 and connect Mercer Island to the northern portion of Seattle's South End. I-90 traverses the northern portion of Mercer Island and is then carried from the island to Bellevue over the East Channel of Lake Washington by the East Channel Bridge. Mercer Island is located closer to Bellevue than it is to Seattle, and is therefore often considered to be part of Ki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extratropical Cyclones
Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are low-pressure areas which, along with the anticyclones of high-pressure areas, drive the weather over much of the Earth. Extratropical cyclones are capable of producing anything from cloudiness and mild showers to severe gales, thunderstorms, blizzards, and tornadoes. These types of cyclones are defined as large scale (synoptic) low pressure weather systems that occur in the middle latitudes of the Earth. In contrast with tropical cyclones, extratropical cyclones produce rapid changes in temperature and dew point along broad lines, called weather fronts, about the center of the cyclone. Terminology The term "cyclone" applies to numerous types of low pressure areas, one of which is the extratropical cyclone. The descriptor ''extratropical'' signifies that this type of cyclone generally occurs outside the tropics and in the middle latitudes of Earth between 30° and 60° latitude. They are termed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombogenesis
Explosive cyclogenesis (also referred to as a weather bomb, meteorological bomb, explosive development, bomb cyclone, or bombogenesis) is the rapid deepening of an extratropical cyclonic low-pressure area. The change in pressure needed to classify something as explosive cyclogenesis is latitude dependent. For example, at 60° latitude, explosive cyclogenesis occurs if the central pressure decreases by or more in 24 hours. This is a predominantly maritime, winter event, but also occurs in continental settings, This process is the extratropical equivalent of the tropical rapid deepening. Although their cyclogenesis is entirely different from that of tropical cyclones, bomb cyclones can produce winds of , the same order as the first categories of the Saffir–Simpson scale, and yield heavy precipitation. Even though only a minority of the bomb cyclones become so strong, some weaker ones have also caused significant damage. History In the 1940s and 1950s, meteorologists at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
October 2021 Northeast Pacific Bomb Cyclone
An extremely powerful extratropical bomb cyclone began in late October 2021 in the Northeast Pacific and struck the Western United States and Western Canada. The storm was the third and the most powerful cyclone in a series of powerful storms that struck the region within a week. The cyclone tapped into a large atmospheric river and underwent explosive intensification, becoming a bomb cyclone on October 24. The bomb cyclone had a minimum central pressure of at its peak, making it the most powerful cyclone recorded in the Northeast Pacific. The system had severe impacts across Western North America, before dissipating on October 26. The storm shattered multiple pressure records across parts of the Pacific Northwest. Additionally, the bomb cyclone was the most powerful storm on record to strike the region, in terms of minimum central pressure. The bomb cyclone brought powerful gale-force winds and flooding to portions of Western North America. At its height, the storm cut the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhoon Songda (2016)
Typhoon Songda was the sixth most intense tropical cyclone of the Northwest Pacific Ocean in 2016. Also known as the Ides of October storm, it struck the Pacific Northwest region of the United States and Canada as a powerful extratropical cyclone. Songda was the twentieth named storm and the ninth typhoon of the annual typhoon season. The system developed into a tropical storm south of Minamitorishima on October 8 and strengthened into a typhoon on October 10. Songda reached its peak intensity southeast of Japan late on October 11 at an unusually high latitude, before it became extratropical on October 13. Meteorological history On October 2, the United States Central Pacific Hurricane Center started to monitor a weak trough of low pressure that had developed about to the southwest of Honolulu, Hawaii. Over the next day as the system moved towards the northwest, showers and thunderstorms gradually developed along the trough, but were showing little to no signs of organisat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BC Hydro
The British Columbia Hydro and Power Authority, operating as BC Hydro, is a Canadian electric utility in the province of British Columbia. It is the main electricity distributor, serving more than 4 million customers in most areas, with the exception of the City of New Westminster, where the city runs its own electrical department and portions of the West Kootenay, Okanagan, the Boundary Country and Similkameen regions, where FortisBC, a subsidiary of Fortis Inc. directly provides electric service to 213,000 customers and supplies municipally owned utilities in the same area. As a provincial Crown corporation, BC Hydro reports to the BC Ministry of Energy, Mines and Low Carbon Innovation, and is regulated by the British Columbia Utilities Commission (BCUC). Its mandate is to generate, purchase, distribute and sell electricity. BC Hydro operates 32 hydroelectric facilities and three natural gas-fueled thermal power plants. As of 2014, 95 per cent of the province's elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metro Vancouver Regional District
The Metro Vancouver Regional District (MVRD), or simply Metro Vancouver, is a Canadian political subdivision and corporate entity representing the metropolitan area of Greater Vancouver, designated by provincial legislation as one of the 28 regional districts in British Columbia. The organization was known as the Regional District of Fraser–Burrard for nearly one year upon incorporating in 1967, and as the Greater Vancouver Regional District (GVRD) from 1968 to 2017. Metro Vancouver borders Whatcom County, Washington, to the south, the Fraser Valley Regional District to the east, the Squamish-Lillooet Regional District to the north, and the Nanaimo Regional District and Cowichan Valley Regional District across the Strait of Georgia to the west. The MVRD is under the direction of 23 local authorities and delivers regional services, sets policy and acts as a political forum. The regional district's most populous city is Vancouver, and Metro Vancouver's administrative of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Mainland
The Lower Mainland is a geographic and cultural region of the mainland coast of British Columbia that generally comprises the regional districts of Metro Vancouver and Fraser Valley. Home to approximately 3.05million people as of the 2021 Canadian census, the Lower Mainland contains sixteen of the province's 30 most populous municipalities and approximately 60% of the province's total population. The region is the traditional territory of the Sto:lo, a Halkomelem-speaking people of the Coast Salish linguistic and cultural grouping. Boundaries Although the term ''Lower Mainland'' has been recorded from the earliest period of colonization in British Columbia, it has never been officially defined in legal terms. The term has historically been in popular usage for over a century to describe a region that extends from Horseshoe Bay south to the Canada–United States border and east to Hope at the eastern end of the Fraser Valley. This definition makes the term ''Lower Mainland' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2015 South Coast Blackout
The 2015 South Coast blackout was a power outage that affected more than 710,000 residents living in the Lower Mainland and Vancouver Island regions of the Canadian province of British Columbia. It was the largest blackout event in BC Hydro history. The blackout was a result of windstorm that hit the South Coast on August 29–30, 2015, which shut down a generator and wiped out a power grid in the Lower Mainland. The hardest hit areas were Abbotsford, Coquitlam, Langley, Pitt Meadows, Port Coquitlam, Port Moody and Surrey. The blackout lasted more than 72 hours for some neighbourhoods in these municipalities. Blackout The blackout began with a windstorm that knocked over trees and blew away branches sometime in the early morning of August 29, 2015. Later around noon, a generator blew out, with most of the electricity going out in neighbourhoods in Coquitlam, Port Moody, and Port Coquitlam, with certain buildings equipped with partial emergency lighting and businesses closi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pineapple Express
Pineapple Express is a non-technical term for a meteorological phenomenon characterized by a strong and persistent large-scale flow of warm moist air, and the associated heavy precipitation both in the waters immediately northeast of the Hawaiian Islands and extending northeast to any location along the Pacific coast of North America. A Pineapple Express is an example of an atmospheric river, which is a more general term for such relatively narrow corridors of enhanced water vapor transport at mid-latitudes around the world. Causes and effects A ''Pineapple Express'' is driven by a strong, southern branch of the polar jet stream and is marked by the presence of a surface frontal boundary which is typically either slow or stationary, with waves of low pressure traveling along its length. Each of these low-pressure systems brings enhanced rainfall. The conditions are often created by the Madden–Julian oscillation, an equatorial rainfall pattern which feeds its moisture int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Coastal Gale Of 2007 The Great Coastal Storm of 2007 was a series of three powerful Pacific storms that affected the U.S. states of Oregon and Washington and the Canadian province of British Columbia between December 1, 2007 and December 4, 2007. The storms on December 2 and 3 produced an extremely long-duration wind event with hurricane-force wind gusts of up to at Holy Cross, Washington on the Washington Coast, and at Bay City, Oregon on the Oregon Coast. The storm also brought heavy rains and produced widespread record flooding throughout the region, and was blamed for at least 18 deaths. Meteorologists at the Oregon Climate Service named the storm in January 2008, drawing from the Great Gale of 1880, a similar powerful storm that affected the region in 1880. Meteorological synopsis On November 29, 2007, a strong low pressure system, fed by the remnants of Typhoon Mitag and Typhoon Hagibis, formed in the central Pacific Ocean, and was carried via the Pineapple Express to the Paci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
