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June 2022 Chicago Supercell
On June 13, 2022, an exceptionally high-topped and powerful supercell impacted the Chicago metropolitan area, with a height of as measured by multiple NEXRAD sites. The system, spawned from an extremely unstable environment, brought widespread severe downburst winds exceeding across Cook County, Illinois, Cook and DuPage County, Illinois, DuPage counties, leading to numerous flight delays and cancellations at O'Hare International Airport. The supercell was part of the same complex of storms that produced a June 2022 Great Lakes derecho, powerful derecho across Indiana and Ohio, where wind gusts reached at Fort Wayne International Airport. The entire storm event caused a total of 3.4 billion dollars of damage. Meteorological synopsis The Storm Prediction Center had outlined an Enhanced (3/5) risk for severe activity in the Great Lakes region and Ohio Valley, with forecasters predicting the formation of storms producing large hail, Downburst, severe wind, and an infrequent torn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bellwood, Illinois
Bellwood is a village in Proviso Township, Cook County, Illinois, United States. Located west of Chicago's downtown Loop, the Village of Bellwood is bounded by the Eisenhower Expressway (south), the Proviso yards of the former Chicago & Northwestern, now Union Pacific Railroad (north), and the suburbs of Maywood (east) and Hillside and Berkeley (west). The population was 18,789 at the 2020 census. History Bellwood was incorporated on May 21, 1900. The municipality took its name from one of the village's early subdivisions, "Bellewood". However, in later years, the final "e" was dropped. The region, which was mostly flat grassland, was initially mostly farmland. A few businesses, including a few taverns, were drawn to the initial subdivision. In reaction to dry Maywood's effort to annex the area, businesses that served alcohol petitioned for incorporation. Between 1900 and 1930, Bellwood's population numbers increased steadily. By 1920, the village's population of 943 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Daylight Time
The North American Central Time Zone (CT) is a time zone in parts of Canada, the United States, Mexico, Central America, and a few Caribbean islands. In parts of that zone (20 states in the US, three provinces or territories in Canada, and several border municipalities in Mexico), the Central Time Zone is affected by two time designations yearly: Central Standard Time (CST) is observed from the first Sunday in November to the second Sunday in March. It is six hours behind Coordinated Universal Time (UTC) and designated internationally as UTC−6. From the second Sunday in March to the first Sunday in November the same areas observe daylight saving time (DST), creating the designation of Central Daylight Time (CDT), which is five hours behind UTC and known internationally as UTC−5. Regions using Central Time Canada The province of Manitoba is the only province or territory in Canada that observes Central Time in all areas. The following Canadian provinces and territ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Instability
Atmospheric instability is a condition where the Earth's atmosphere is considered to be unstable and as a result local weather is highly variable through distance and time. Atmospheric instability encourages vertical motion, which is directly correlated to different types of weather systems and their severity. For example, under unstable conditions, a lifted air parcel, parcel of air will find cooler and denser surrounding air, making the parcel prone to further ascent, in a positive feedback loop. In meteorology, instability can be described by various indices such as the Bulk Richardson Number, lifted index, K-index (meteorology), K-index, convective available potential energy, convective available potential energy (CAPE), the Showalter, and the Vertical totals. These indices, as well as atmospheric instability itself, involve temperature changes through the troposphere with height, or lapse rate. Effects of atmospheric instability in moist atmospheres include thunderstorm d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesoscale Convective System
A mesoscale convective system (MCS) is a complex of thunderstorms that becomes organized on a scale larger than the individual thunderstorms but smaller than extratropical cyclones, and normally persists for several hours or more. A mesoscale convective system's overall cloud and precipitation pattern may be round or linear in shape, and include weather systems such as tropical cyclones, squall lines, lake-effect snow events, polar lows, and mesoscale convective complexes (MCCs), and generally forms near weather fronts. The type that forms during the warm season over land has been noted across North and South America, Europe, and Asia, with a maximum in activity noted during the late afternoon and evening hours. Forms of MCS that develop within the tropics use either the Intertropical Convergence Zone (ITCZ) or monsoon troughs as a focus for their development, generally within the warm season between spring and fall. One exception is that of lake-effect snow bands, which form due ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold Pool
In atmospheric science, a cold pool (CP) is a cold pocket of dense air that forms when rain evaporates during intense precipitation e.g. underneath a thunderstorm cloud or a precipitating shallow cloud. Typically, cold pools spread at 10 m/s and last 2–3 hours. Cold pools are ubiquitous both over land and ocean. The characteristics and impact of cold pools vary depending on the properties of the parent convection, namely its rain rates, and the large-scale environment in which they originate. Cold pools can have a strong impact on cloud cover and organization, by triggering new convection at the gust front and suppressing clouds in its interior. Cold pools can be detected and studied using observations, high resolution numerical simulations, and simple conceptual models. Characteristics Cold pools spread radially away from the rain event along the surface as a moving gust front. When the gust front passes, cold pools cause an increase in wind speed and a sudden drop in specif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outflow (meteorology)
Outflow, in meteorology, is air that flows outwards from a storm system. It is associated with ridging, or anticyclone, anticyclonic flow. In the low levels of the troposphere, outflow radiates from thunderstorms in the form of a wedge of rain-cooled air, which is visible as a thin rope-like cloud on weather satellite imagery or a fine line on weather radar imagery. For observers on the ground, a thunderstorm outflow boundary often approaches in otherwise clear skies as a low, thick cloud that brings with it a gust front. Low-level outflow boundaries can disrupt the center of small tropical cyclones. However, outflow aloft is essential for the strengthening of a tropical cyclone. If this outflow is restricted or undercut, the tropical cyclone weakens. If two tropical cyclones are close, the upper-level outflow from the upwind system can limit the development of the other system. Thunderstorms For thunderstorms, outflow tends to indicate the development of a system. Large quan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wisconsin
Wisconsin ( ) is a U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest of the United States. It borders Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. With a population of about 6 million and an area of about 65,500 square miles, Wisconsin is the List of U.S. states and territories by population, 20th-largest state by population and the List of U.S. states and territories by area, 23rd-largest by area. It has List of counties in Wisconsin, 72 counties. Its List of municipalities in Wisconsin by population, most populous city is Milwaukee; its List of capitals in the United States, capital and second-most populous city is Madison, Wisconsin, Madison. Other urban areas include Green Bay, Wisconsin, Green Bay, Kenosha, Wisconsin, Kenosha, Racine, Wisconsin, Racine, Eau Claire, Wisconsin, Eau Claire, and the Fox Cities. Geography of Wiscon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Wayne, Indiana
Fort Wayne is a city in Allen County, Indiana, United States, and its county seat. Located in northeastern Indiana, the city is west of the Ohio border and south of the Michigan border. The city's population was 263,886 at the 2020 census, making it the second-most populous city in Indiana after Indianapolis, and the 83rd-most populous city in the U.S. The Fort Wayne metropolitan area, consisting of Allen and Whitley counties, has an estimated population of 463,000. Fort Wayne is the cultural and economic center of northeastern Indiana. Fort Wayne was built in 1794 by the United States Army under the direction of American Revolutionary War general Anthony Wayne, the last in a series of forts built near the Miami village of Kekionga. Named in Wayne's honor, the European-American settlement developed at the confluence of the St. Joseph, St. Marys, and Maumee rivers, known originally as Fort Miami, a trading post constructed by Jean Baptiste Bissot, Sieur de Vin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado
A tornado is a violently rotating column of air that is in contact with the surface of Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the word cyclone is used in meteorology to name a weather system with a low-pressure area in the center around which, from an observer looking down toward the surface of the Earth, winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Tornadoes come in many shapes and sizes, and they are often (but not always) visible in the form of a funnel cloud, condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. Most tornadoes have wind speeds less than , are about across, and travel several kilometers (a few miles) before dissipating. The Tornado records#Highest winds observed in a tornado, most extreme tornadoes can attain wind speeds of mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Downburst
In meteorology, a downburst is a strong downward and outward gushing wind system that emanates from a point source above and blows radially, that is, in straight lines in all directions from the area of impact at surface level. It originates under deep, moist convective conditions like cumulus congestus or cumulonimbus. Capable of producing damaging winds, it may sometimes be confused with a tornado, where high-velocity winds circle a central area, and air moves inward and upward. These usually last for seconds to minutes. Downbursts are particularly strong downdrafts within thunderstorms (or deep, moist convection as sometimes downbursts emanate from cumulonimbus or even cumulus congestus clouds that are not producing lightning). Downbursts are most often created by an area of significantly precipitation-cooled air that, after reaching the surface ( subsiding), spreads out in all directions producing strong winds. Dry downbursts are associated with thunderstorms that ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hail
Hail is a form of solid Precipitation (meteorology), precipitation. It is distinct from ice pellets (American English "sleet"), though the two are often confused. It consists of balls or irregular lumps of ice, each of which is called a hailstone. Ice pellets generally fall in cold weather, while hail growth is greatly inhibited during low surface temperatures. Unlike other forms of ice, water ice precipitation, such as graupel (which is made of rime ice), ice pellets (which are smaller and Transparency and translucency, translucent), and snow (which consists of tiny, delicately crystalline flakes or needles), hailstones usually measure between and in diameter. The METAR reporting code for hail or greater is GR, while smaller hailstones and graupel are coded GS. Hail is possible during most thunderstorms (as it is produced by cumulonimbus), as well as within of the parent storm. Hail formation requires environments of strong, upward motion of air within the parent thunderst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
