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1933 Chesapeake–Potomac Hurricane
The 1933 Chesapeake–Potomac hurricane was among the most damaging hurricanes in the Mid-Atlantic states in the eastern United States. The sixth storm and third hurricane of the very active 1933 Atlantic hurricane season, it formed in the eastern Atlantic, where it moved west-northwestward and eventually became a Category 4 on the Saffir-Simpson hurricane wind scale. A strong ridge over New England allowed a continued northwest course, bringing the storm south of Bermuda and later toward the middle coast of the eastern United States. Advanced warning allowed hundreds of people to evacuate ahead of the hurricane making landfall. It did so in northeastern North Carolina on August 23 with winds of about . Soon after, the eye crossed over Norfolk, Virginia, the first time that happened since 1821. The hurricane weakened into a tropical storm over northern Virginia shortly before passing near Washington, D.C., becoming the worst tropical cyclone there since 1896. Curving nort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Weather Analysis
Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations. Weather maps are created by plotting or tracing the values of relevant quantities such as sea level pressure, temperature, and cloud cover onto a geographical map to help find synoptic scale features such as weather fronts. The first weather maps in the 19th century were drawn well after the fact to help devise a theory on storm systems.Eric R. MillerAmerican Pioneers in Meteorology.Retrieved on 2007-04-18. After the advent of the telegraph, simultaneous surface weather observations became possible for the first time, and beginning in the late 1840s, the Smithsonian Institution became the first organization to draw real-time surface analyses. Use of surface analyses began first in the United States, spreading worldwide during the 1870s. Use of the Norwegian cyclone model for fronta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New England
New England is a region consisting of six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York (state), New York to the west and by the Canadian provinces of New Brunswick to the northeast and Quebec to the north. The Gulf of Maine and Atlantic Ocean are to the east and southeast, and Long Island Sound is to the southwest. Boston is New England's largest city and the capital of Massachusetts. Greater Boston, comprising the Boston–Worcester–Providence Combined Statistical Area, houses more than half of New England's population; this area includes Worcester, Massachusetts, the second-largest city in New England; Manchester, New Hampshire, the largest city in New Hampshire; and Providence, Rhode Island, the capital of and largest city in Rhode Island. In 1620, the Pilgrims (Plymouth Colony), Pilgrims established Plymouth Colony, the second successful settlement in Briti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
York, Pennsylvania
York is a city in York County, Pennsylvania, United States, and its county seat. Located in South Central Pennsylvania, the city's population was 44,800 at the time of the 2020 United States census, 2020 census, making it the List of cities in Pennsylvania, tenth-most populous city in Pennsylvania. The city has an urban area population of 238,549 people when taking into account people residing in surrounding municipalities. Founded in 1741, York served as the temporary base for the Continental Congress from September 1777 to June 1778, during which the Articles of Confederation were drafted. It is the largest city in the Metropolitan statistical area, York–Hanover metropolitan area, which is also included in the larger Harrisburg–York–Lebanon combined statistical area of the Susquehanna Valley. History 18th century York was also known as Yorktown in the mid-18th to early 19th centuries. It was founded in 1741 by settlers from the Philadelphia region and named for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean City, Maryland
Ocean City, officially the Town of Ocean City, is an Atlantic Ocean, Atlantic resort city in Worcester County, Maryland, Worcester County, Maryland, along the East Coast of the United States. The population was 6,844 at the 2020 United States census, 2020 U.S. census, although during summer weekends the city hosts between 320,000 and 345,000 vacationers and up to eight million visitors annually. During the summer, Ocean City becomes the second most populated municipality in Maryland, after Baltimore. It is part of the Salisbury metropolitan area as defined by the United States Census Bureau. During peak vacation season, the city gains over 1000 seasonal police officers, plus extra firefighters and other workers. Numerous events take place within the town during the shoulder-season, including Sunfest, Springfest, Bike Week, Cruisin' Weekend, Winterfest of Lights, and Reach the Beach, which take place on the Boardwalk and the Roland E. Powell Convention Center. Ocean City is also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexandria, Virginia
Alexandria is an independent city (United States), independent city in Northern Virginia, United States. It lies on the western bank of the Potomac River approximately south of Washington, D.C., D.C. The city's population of 159,467 at the 2020 census made it the List of cities in Virginia, sixth-most populous city in Virginia and List of United States cities by population, 169th-most populous city in the U.S. Alexandria is a principal city of the Washington metropolitan area, which is part of the larger Washington–Baltimore combined statistical area. Like the rest of Northern Virginia and Central Maryland, present-day Alexandria has been influenced by its proximity to the U.S. capital. It is largely populated by professionals working in the United States federal civil service, federal civil service, in the United States Armed Forces, U.S. military, or for one of the many private companies which contract to Government contractor, provide services to the Federal government of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Storm Surge
A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the normal tidal level, and does not include waves. The main meteorological factor contributing to a storm surge is high-speed wind pushing water towards the coast over a long fetch. Other factors affecting storm surge severity include the shallowness and orientation of the water body in the storm path, the timing of tides, and the atmospheric pressure drop due to the storm. As extreme weather becomes more intense and the sea level rises due to climate change, storm surges are expected to cause more risk to coastal populations. Communities and governments can adapt by building hard infrastructure, like surge barriers, soft infrastructure, like coastal dunes or mangroves, improving coastal construction practices and building social strat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Return Period
A return period, also known as a recurrence interval or repeat interval, is an average time or an estimated average time between events such as earthquakes, floods, landslides, or river discharge flows to occur. The reciprocal value of return period is called the frequency of occurrence. It is a statistical measurement typically based on historic data over an extended period, and is used usually for risk analysis. Examples include deciding whether a project should be allowed to go forward in a zone of a certain risk or designing structures to withstand events with a certain return period. The following analysis assumes that the probability of the event occurring does not vary over time and is independent of past events. Estimating a return period Recurrence interval = :''n'' number of years on record; :''m'' is the rank of observed occurrences when arranged in descending order For floods, the event may be measured in terms of m3/s or height; for storm surges, in terms of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chesapeake Bay
The Chesapeake Bay ( ) is the largest estuary in the United States. The bay is located in the Mid-Atlantic (United States), Mid-Atlantic region and is primarily separated from the Atlantic Ocean by the Delmarva Peninsula, including parts of the Eastern Shore of Maryland, the Eastern Shore of Virginia, and the state of Delaware. The mouth of the bay at its southern point is located between Cape Henry and Cape Charles (headland), Cape Charles. With its northern portion in Maryland and the southern part in Virginia, the Chesapeake Bay is a very important feature for the ecology and economy of those two states, as well as others surrounding within its watershed. More than 150 major rivers and streams flow into the bay's drainage basin, which covers parts of six states (New York (state), New York, Pennsylvania, Delaware, Maryland, Virginia, and West Virginia) and all of Washington, D.C. The bay is approximately long from its northern headwaters in the Susquehanna River to its outlet i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Dollar
The United States dollar (Currency symbol, symbol: Dollar sign, $; ISO 4217, currency code: USD) is the official currency of the United States and International use of the U.S. dollar, several other countries. The Coinage Act of 1792 introduced the U.S. dollar at par with the Spanish dollar, Spanish silver dollar, divided it into 100 cent (currency), cents, and authorized the Mint (facility), minting of coins denominated in dollars and cents. U.S. banknotes are issued in the form of Federal Reserve Notes, popularly called greenbacks due to their predominantly green color. The U.S. dollar was originally defined under a bimetallism, bimetallic standard of (0.7734375 troy ounces) fine silver or, from Coinage Act of 1834, 1834, fine gold, or $20.67 per troy ounce. The Gold Standard Act of 1900 linked the dollar solely to gold. From 1934, its equivalence to gold was revised to $35 per troy ounce. In 1971 all links to gold were repealed. The U.S. dollar became an important intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extratropical Cyclone
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 rain, showers to severe hail, thunderstorms, blizzards, and tornadoes. These types of cyclones are defined as Synoptic scale meteorology, large scale (synoptic) Low-pressure area, 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 Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1896 Atlantic Hurricane Season
The 1896 Atlantic hurricane season was fairly inactive but produced one of the costliest hurricanes ever to strike the United States until that point, along with several other destructive tropical cyclones. The season began in early July with a hurricane in the Gulf of Mexico and ended in late November with a slow-moving tropical storm over the Lesser Antilles. Of the season's seven documented systems, six are believed to have become hurricanes, and two intensified into major hurricanes—the equivalence of Category 3 or greater on the modern-day Saffir–Simpson scale. All but one of the systems directly affected land to some degree; Hurricane "Six" remained over open water and only posed a threat to shipping lanes. In addition, a possible storm was identified off the coast of North Carolina on August 28–29, but modern reanalysis efforts have found insufficient evidence to classify it as a tropical cyclone. Tropical systems in the 1896 season killed at least 286 people and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
