"Visibilities will become poor with whiteout conditions at times," the service said.
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"Remain alert for rapidly changing [visibilities] and quickly deteriorating road conditions," it warned.
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"Expect snow-covered roads and limited visibilities, and use caution while driving," the weather service said.
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"Travel will become quite difficult, with snow covered, slippery roads, and poor visibilities," the Weather Service said in the warning sent Monday morning.
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Richard Ledgett, a former deputy director of the N.S.A., told me that the government has "all kinds of visibilities and vantages" into foreign computer networks.
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Sanders's campaign largely opted not to organize "visibilities" (the jargon for people showing up to wave signs and chant) at party events through most of 2019, making note of how his volunteers were too busy knocking on doors to waste time at a party event.
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Visibilities of all other sources are calibrated using observed visibilities of one of these four calibrators.
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Visibilités (French for "visibilities") is a term used by Michel Foucault to designate all that carries meaning other than énoncés/statements.
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This was also the first solid identification of a quasar with a surrounding galaxy at the same redshift. 3C 48 is one of four primary calibrators used by the Very Large Array (along with 3C 138 and 3C 147, and 3C 286). Visibilities of all other sources are calibrated using observed visibilities of one of these four calibrators.
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TART-2 includes real-time correlation of the radio data from every pair of antennas. This correlation is carried out in the FPGA. There are 276 pairs of antennas, leading to 276 complex visibilities being calculated which are used as inputs to the synthesis imaging process. These visibilities are made available via the RESTful API for live imaging, or downloading for further analysis.
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Delays in Camden and Newark Airports were possibly 2 hours or more. Visibilities were reduced to below in most areas. Also, houses took major damage.
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High winds caused near zero visibilities and treacherous travel conditions in many areas. The strong easterly winds also piled up water along the eastern coast of Massachusetts, leading to major coastal flood damage.
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Being adjacent to the Susquehanna River, the airport experiences fog on a relatively frequent basis during the late night to mid-morning hours during the late summer to autumn with visibilities often under one-quarter mile.
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"Seated I" and "Seated III" were subsequently acquired for The Met's permanent collection. A discussion with her about the exhibit and contemporary times was recorded on July 28, 2020 for a series entitled Women and the Critical Eye. In January of 2020, Mutu was part of Artpace’s exhibit entitled Visibilities: Intrepid Women of Artpace. Curated by Erin K. Murphy, Visibilities not only kicks off Artpace’s 25th anniversary celebration, but also highlights past artists from their International Artist- in-Residency program, such as Mutu who was a resident there in Fall of 2004.
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But as a result of the expansion of the Universe, the present (co-moving) distance to this galaxy is about 6.4 billion light-years (1974 Mpc). Very Long Baseline Array (VLBA) observations have identified a complex central region that is dominated by two bright components, A and B. The separation between the two central components of the source seems to be increasing with an apparent velocity (superluminal motion) of 1.2 ± 0.4 c. 3C 147 is one of four primary calibrators used by the Very Large Array (along with 3C 48, 3C 138, and 3C 286). Visibilities of all other sources are calibrated using observed visibilities of one of these four calibrators.
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Thundersnow produces heavy snowfall rates in the range of per hour. Snowfall of this intensity may limit visibilities severely, even during light wind conditions. However, thundersnow is often a part of a severe winter storm or blizzard. Winds of above tropical storm force are frequent with thundersnow.
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The intensity interferometer measures interferometric visibilities like all other astronomical interferometers. These measurements can be used to calculate the diameter and limb darkening coefficients of stars, but with intensity interferometers aperture synthesis images cannot be produced as the visibility phase information is not preserved by an intensity interferometer.
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As a result, visibilities in thundersnow are frequently under 2/5th of a mile. Additionally, such wind creates extreme wind chills and may result in frostbite. Finally, there is a greater likelihood that thundersnow lightning will have a positive polarity, which is associated with a greater destructive potential than the more common negatively-charged lightning.
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On the 26th, visibilities in some towns were less than 0.1 miles. This caused whiteout conditions in towns along the Raritan River and the Atlantic coastline. Cape May had reported nearly 15 inches of snow after the storm had moved out to sea. The town had lesser snow amounts due to a break in the southern half of the snow bands pivoting toward New Jersey.
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Some roads were closed for up to 11 days. Sioux Falls, South Dakota saw visibilities of below for 24 straight hours, and just east of Sioux Falls a 2,000-foot (610 m) broadcast tower collapsed under the storm's fury. In Willmar, Minnesota, 168 passengers were trapped in a stranded train for hours, unable to walk to shelter because of dangerously low wind chill values.
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Los Rodeos airport is at above sea level, which gives rise to cloud behavior that differs from that at many other airports. Clouds at above ground level at the nearby coast are at ground level at Los Rodeos. Drifting clouds of different densities cause wildly varying visibilities, from unhindered at one moment to below the minimums the next. The collision took place in a high-density cloud.
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The contrast distortions are weighted according to their individual visibilities approximated by the HVS. With these models, an objective function that defines the tone curve can be created and solved using a fast quadratic solver. With the addition of filters, this method can also be extended to videos. The filters ensure that the rapid changing of the tone-curve between frames are not salient in the final output image.
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If relative humidity is high (i.e., there is a small difference between the temperature and the dew point), mist or fog is reported, depending on the exact visibility. Fog is reported when visibility is 1/2 mile or less; mist is reported for visibilities greater than but less than . If the temperature is below freezing, humidity is high and visibility is 1/2 mile or less, freezing fog is reported.
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THE SNOW AND BLOWING SNOW WILL CAUSE VISIBILITY TO BE REDUCED TO A QUARTER MILE OR LESS IN SOME LOCATIONS. CONDITIONS SHOULD BE IMPROVING LATER THIS MORNING AND AFTERNOON AS THE STORM SYSTEM MOVES EAST OF THE REGION. TRAVEL SHOULD BE POSTPONED UNTIL CONDITIONS IMPROVE BY MIDDAY. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW.
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Knight has been widely exhibited, including at institutions such as Marfa Contemporary (2018), DiverseWorks Artspace (2018), Contemporary Arts Museum Houston (2018), University of Illinois - Krannert Art Museum (2017), Art League Houston (2016), She Works Flexible (2016), The New Museum (2015), Blaffer Art Museum (2014), Skowhegan Space (2014), CounterCutrent (2014) with Lisa E. Harris and M'Kina Tapscott, Project Row Houses (2013), and Crystal Bridges Museum. In 2019, Knight performed at Human Resources in Los Angeles, and was selected to be included in the 2019 Whitney Biennial, curated by Rujeko Hockley and Jane Panetta. As MF Problem with artist Robert Pruitt she is a performer in the 2019 CounterCurrent Festival. In January 2020, Knight was part of Artpace’s exhibit titled Visibilities: Intrepid Women of Artpace. Curated by Erin K. Murphy, Visibilities not only kicks off Artpace’s 25th anniversary celebration, but also highlights past artists from their International Artist-in-Residency program, such as Knight who was a resident there in Spring of 2015.
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The horizon circle may be divided into as many sections as required based on differing visibilities. When the prevailing visibility is less than 4 miles, or goes from less than 4 miles to four miles or greater, tower personnel are required to take a prevailing visibility reading. If this reading differs from the ground reading (i.e., different readings for different heights), the lower value of the two is used for aircraft operations.
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As nacelle supplier Nordam filed for bankruptcy on 23 July, initial deliveries will be slowed. Certification allowed the EFVS to provide the only visual cues for landing down to runway visual range, to touchdown and rollout, after 50 test approaches, and testing to lower visibilities could allow dropping the limit. The first G500 was delivered on September 27, 2018. On October 1, Gulfstream announced the acquisition of the nacelle manufacturing line from Nordam.
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Indian mathematician-astronomer Bhāskara II, in his Siddhanta Shiromani, calculates the longitudes and latitudes of the planets, lunar and solar eclipses, risings and settings, the Moon's lunar crescent, syzygies, and conjunctions of the planets with each other and with the fixed stars, and explains the three problems of diurnal rotation. He also calculates the planetary mean motion, ellipses, first visibilities of the planets, the lunar crescent, the seasons, and the length of the Earth's revolution around the Sun to 9 decimal places.
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Weather conditions in the area of Roselawn, Indiana, were recorded by National Weather Service. The summary showed a low pressure center in the area of west central Indiana, and "…cloud ceilings of less than 1,000 feet and/or visibilities of less than 3 miles, in rain,…" occurring in northern Indiana at 1600 local time. A cold front also extended from the low pressure center in a southwesterly direction. The surface temperature of the accident site was reported as 7 degrees Celsius.
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Latest generation transmissometer technology makes use of a co-located forward scatter visibility sensor on the transmitter unit to allow for higher accuracies over an Extended Meteorological Optical Range or EMOR. After 10,000 meters the accuracy of transmissometer technology diminishes, and at higher visibilities forward scatter visibility sensor technology is more accurate. The co-location of the two sensors allows for the most accurate technology to be used when reporting current visibility. The forward scatter sensor also enables auto- alignment and auto-calibration of the transmissometer device.
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The Snow Squall Warning is a new type of experimental warning that will begin operation out of 7 NWS offices beginning Mid-January 2018. Unlike Blizzard and Ice Storm Warnings which are issued well in advance, Snow Squall Warnings will be issued when life-threatening snow squalls that will produce strong winds and poor visibilities are occurring. These will be issued as Storm-Based Warning Polygons, like Severe Thunderstorm and Tornado Warnings. This is being considered for the nationwide WEA Program as this event requires immediate action unlike Blizzard or Ice Storm Warnings.
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GOES-EAST photos enable meteorologists to observe, track and forecast this sand cloud. In addition to reducing visibilities and causing respiratory problems, sand clouds suppress hurricane formation by modifying the solar radiation balance of the tropics. Other dust storms in Asia and mainland China are common and easy to spot and monitor, with recent examples of dust moving across the Pacific Ocean and reaching North America. In remote areas of the world with few local observers, fires could rage out of control for days or even weeks and consume millions of acres before authorities are alerted.
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A blizzard watch was a bulletin issued by the National Weather Service of the United States which meant winds greater than , mixed with falling or blowing snow, and visibilities of or less is forecast for a period of 3 hours or more. A blizzard watch was issued 12 to 48 hours before an expected blizzard event. As the forecast solidifies, a blizzard watch would be either downgraded to a winter storm warning or winter weather advisory for blowing snow (depending on accumulation amounts) or upgraded to a blizzard warning. On October 2, 2017, issuance of the blizzard watch has been discontinued.
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Research on Sexualities and Space has widened over time to encompass studies not just of LGBT populations but also the geographies and spaces of heterosexualities. This has included, inter alia, consideration of the impacts of sexuality on the visibilities of commercial sex; the design and consumption of housing; spaces of sex education; the sexualisation of leisure and retail spaces; landscapes of sex tourism; spaces of love, caring and intimacy. This has bought geographies of sexuality into dialogue with gender geography by showing that sexual norms reproduce particular ideas of masculinity and femininity.[Hubbard, P. (2008) "Here, there, everywhere: the ubiquitous geographies of heteronormativity" Geography Compass].
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The required minimum visibilities for instrument approaches is influenced by the presence and type of approach lighting system. In the U.S., a CAT I ILS approach without approach lights will have a minimum required visibility of 3/4 mile, or 4000 foot runway visual range. With a 1400-foot or longer approach light system, the minimum potential visibility might be reduced to 1/2 mile (2400 runway visual range), and the presence of touchdown zone and centerline lights with a suitable approach light system might further reduce the visibility to 3/8 mile (1800 feet runway visual range). The runway lighting is controlled by the air traffic control tower.
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In the United States, the National Weather Service defines a blizzard as a severe snow storm characterized by strong winds causing blowing snow that results in low visibilities. The difference between a blizzard and a snowstorm is the strength of the wind, not the amount of snow. To be a blizzard, a snow storm must have sustained winds or frequent gusts that are greater than or equal to with blowing or drifting snow which reduces visibility to or less and must last for a prolonged period of time—typically three hours or more. While severe cold and large amounts of drifting snow may accompany blizzards, they are not required.
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Lakes at higher elevations show a higher level of acidity due to this phenomenon; the current and long-term impact on the ecosystem of the park has not yet been fully assessed. Mercury and toxins from pesticides have been detected in the park, as has ozone; these have not been demonstrated to be at sufficient concentrations to greatly impact the ecosystem. Sulfur, nitrogen dioxide and ozone from factories and automobile emissions as well as increased dust and fine particulates from sources such as farming and construction are dispersed into the atmosphere, reducing long-range visibility. Visibilities of up to have been reduced to less than on the worst days due to the increased haze.
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Weather radar observations, as well as synoptic report, showed extensive thundersnow embedded within the blizzard; in the heaviest bands, accumulation rates exceeded . The wind combined with the intense snow rates produced visibilities of or less in most areas for brief periods, however these conditions persisted for at least eight hours in much of Nova Scotia. The wind also whipped up snow drifts which in some cases covered two and three-storey buildings and made many roads impassable to both common motor vehicles and snow removal equipment. The humid continental climate of coastal Nova Scotia typically does not experience extreme snowfalls, compared with northern Nova Scotia, Cape Breton Island, Prince Edward Island and New Brunswick.
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URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DODGE CITY KS 659 AM CST MON JAN 2 2009 ...NEAR ZERO VISIBILITY BEING REPORTED ACROSS PARTS OF WESTERN KANSAS EARLY THIS MORNING... .AN INTENSE WINTER STORM WAS MOVING ACROSS WESTERN KANSAS EARLY THIS MORNING BRINGING SNOW AND BLOWING SNOW ON STRONG NORTH WINDS. A BAND OF SNOW AND BLOWING SNOW WAS REDUCING VISIBILITY DOWN TO ZERO IN MANY LOCATIONS ALONG AND WEST OF U.S. HIGHWAY 281. THIS BAND OF SNOW WILL MOVE EAST THROUGH AREAS OF WEST KANSAS THROUGH MID DAY... AND SHOULD BE TAPERING OFF FROM WEST TO EAST THROUGH THE LATE MORNING HOURS WITH VISIBILITIES IMPROVING. KSZ030-031-043>046-061>066-074>081-084>090-271030- /O.CON.KDDC.
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The reflection and refraction in the troposphere determines who hears the strike and who doesn't. Usually, the troposphere will reflect the light, and leave out the sound - in these cases some fraction of the light emanating from distant thunderstorms (whose distant clouds may be so low to the horizon as to be essentially invisible) is scattered by the upper atmosphere and thus visible to remote observers. Under optimum conditions, the most intense thunderstorms can be seen at up to over flat terrain or water when the clouds are illuminated by large lightning discharges. However, an upper limit of is more common due to topography, trees on the horizon, low to mid-level clouds, and the fact that local visibilities are generally no more than .
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Aguilar stated that her artistic goal was"to create photographic images that compassionately render the human experience, revealed through the lives of individuals in the lesbian/gay and/or persons of color communities." Aguilar's works have appeared in more than 50 national and international exhibitions, including the 1993 Venice Biennial, Italy; the Los Angeles City Hall Bridge Gallery, the Los Angeles Contemporary Exhibitions (LACE), the Los Angeles Photography Center, the Women's Center Gallery at the University of California in Santa Barbara, and Artpace’s exhibit Visibilities: Intrepid Women of Artpace. She was a 2000 recipient of an Anonymous Was A Woman Award and the James D. Phelan Award in photography in 1995. Her work is held in a number of public collections, including those at the Kinsey Institute for Research in Sex, Gender, and Reproduction, Indiana University, Bloomington; Los Angeles County Museum of Art; Museum of Contemporary Art, Los Angeles; and the New Museum of Contemporary Art, New York City.
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HUDs then EVS came to business jets in 2001 and the FAA published EVFS rules in 2016 to land in poor visibility through a HUD, precluding PFD use, with combined enhanced and synthetic vision system (CVS). Under current FAR 91.175 regulations, airplanes with HUDs can attain before switching to natural vision to land, permitting all-weather landing in airports without ILS Cat II/III approaches. After beginning work in 2011, Dassault was first to certify its CVS with its Elbit HUD and camera, FalconEye, in October 2016 in the Falcon 2000 and 900, then in the 8X in early 2017. In July 2018, FAA certification of the Gulfstream G500 allowed the EFVS to provide the only visual cues for landing down to runway visual range, to touchdown and rollout, after 50 test approaches, and testing to lower visibilities could allow dropping the limit, with approvals for previous Gulfstreams to follow. By October 2018, the Falcon 8X FalconEye was approved by the FAA and EASA for approaches down to .
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This enabled him, with the assistance of visual artist Howard Wood, to create Phantasmagoria, a walk-through film of an evening's entertainment at the ruined convent. He went on to write, the best-selling critical volume: Gothic Machine, Pre-cinematic Media and Film in Popular Visual Culture 1670-1910 which sold out in four months. Jerrold Hogle wrote of this study: ‘This work remains a significant advance in Gothic and cultural studies.’ This volume was followed by Sexuality and the Gothic Magic Lantern: Desire, Eroticism and Literary Visibilities from Byron to Bram Stoker (Palgrave Gothic). Annwn subsequently wrote a series of articles concerning early Gothic comics, Gothic engravings, calligraphy and dance for ‘The Gothic Imagination’ website convened by Stirling University. Magic lantern shows include those at the Bram Stoker International Fellowship, (2012) Whitby, the Gothic Festival Manchester (2014) and, as reported in Reuters International News: a specially-devised lycanthropic lantern show at The Company of Wolves’ Conference, University of Hertfordshire (2015). David Annwn's most recent collection of poems include Bela Fawr's Cabaret (2008) Disco Occident (2013) and Against the Odds/St John's Fragment (2015) and his multi-media plays: Harker's Bizarre and Grimani's Theatre have been performed at Whitby as part of the Bram Stoker Film Festival.
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