Washington

Washington is a state in the Pacific Northwest region of the United States located north of Oregon, west of Idaho, and south of the Canadian province of British Columbia on the coast of the Pacific Ocean. Named after George Washington, the first President of the United States, the state was made out of the western part of the Washington Territory which had been ceded by Britain in 1846 by the Oregon Treaty as a settlement of the Oregon Boundary Dispute. It was admitted to the Union as the 42nd state in 1889. Washington is often referred to as Washington State or the State of Washington to distinguish it from Washington, D.C., the capital of the United States.

Washington is the 18th largest and the 13th most populous state. Approximately 60 percent of Washington’s residents live in the Seattle metropolitan area, the center of transportation, business, and industry along the Puget Sound region of the Salish Sea, an inlet of the Pacific consisting of numerous islands, deep fjords, and bays carved out by glaciers. The remainder of the state consists of deep temperate rainforests in the west, mountain ranges in the west, central, northeast and far southeast, and a semi-arid basin region in the east, central, and south, given over to intensive agriculture. After California, Washington is the second most populous state on the West Coast and in the Western United States.

Washington is a leading lumber producer. Its rugged surface is rich in stands of Douglas fir, hemlock, ponderosa, white pine, spruce, larch, and cedar. The state is the biggest producer of apples, hops, pears, red raspberries, spearmint oil, and sweet cherries, and ranks high in the production of apricots, asparagus, dry edible peas, grapes, lentils, peppermint oil, and potatoes. Livestock and livestock products make important contributions to total farm revenue, and the commercial fishing of salmon, halibut, and bottomfish makes a significant contribution to the state’s economy.

Manufacturing industries in Washington include aircraft and missiles, shipbuilding and other transportation equipment, lumber, food processing, metals and metal products, chemicals, and machinery. Washington has over 1,000 dams, including the Grand Coulee Dam, built for a variety of purposes including irrigation, power, flood control, and water storage.

Geography

See also: Geology of the Pacific Northwest

South Eastern Washington

The Pacific Coast of Westport, Washington

Washington is the northwestern-most state of the contiguous United States. Its northern border lies mostly along the 49th parallel, and then via marine boundaries through the Strait of Georgia, Haro Strait and Strait of Juan de Fuca, with the Canadian province of British Columbia to the north. Washington is bordered by Oregon to the south, with the Columbia River forming the western part and the 46th parallel forming the eastern part of the southern boundary.

To the east, Washington borders Idaho, bounded mostly by the meridian running north from the confluence of the Snake River and Clearwater River (about 116°57′ west), except for the southernmost section where the border follows the Snake River. To the west of Washington lies the Pacific Ocean. Washington was a Union territory during the American Civil War, although it never actually participated in the war.

Cascade Pass in the North Cascades National Park

Washington is part of a region known as the Pacific Northwest, a term which always includes Washington and Oregon and may or may not include Idaho, western Montana, northern California, and Alaska, depending on the user’s intent.

The high mountains of the Cascade Range run north-south, bisecting the state. From the Cascades westward, Western Washington has a mostly marine west coast climate, with mild temperatures and wet winters, autumns and springs, and relatively dry summers. The Cascade Range contains several volcanoes, which reach altitudes significantly higher than the rest of the mountains. From the north to the south, these volcanoes are Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams. Mount St. Helens is currently the only Washington volcano that is actively erupting; however, all of them are considered active volcanoes. Mount Rainier, the tallest mountain in the state, is 50 miles (80 km) south of the city of Seattle, from which it is prominently visible. The 14,411-foot-tall (4,392 m) Mt. Rainier is considered the most dangerous volcano in the Cascade Range, due to its proximity to the Seattle metropolitan area, and most dangerous in the continental U.S. according to the Decade Volcanoes list. It is also covered with more glacial ice than any other peak in the contiguous 48 states.

The Columbia River Gorge.

Western Washington also is home of the Olympic Mountains, far west on the Olympic Peninsula, which supports dense forests of conifers and areas of temperate rainforest. These deep forests, such as the Hoh Rainforest, are among the only temperate rainforests in the continental United States.

In contrast, Eastern Washington, east of the Cascades, has a relatively dry climate with large areas of semiarid steppe and a few truly arid deserts lying in the rain shadow of the Cascades; the Hanford reservation receives an average annual precipitation of 6 to 7 inches (150 to 180 mm). Farther east, the climate becomes less arid, increasing as one goes east to 21.2 inches (540 mm) in Pullman. The Okanogan Highlands and the rugged Kettle River Range and Selkirk Mountains cover much of the northeastern quadrant of the state. The Palouse southeast region of Washington was grassland that has been mostly converted into farmland, and extends to the Blue Mountains.

Climate

See also: Climate change in Washington

Washington map of Köppen climate classification.

Dryland farming caused a large dust storm in arid parts of eastern Washington on October 4, 2009. Courtesy: NASA/GSFC, MODIS Rapid Response.

Washington’s climate varies greatly from west to east. An oceanic climate (also called “west coast marine climate”) predominates in western Washington, and a much drier semi-arid climate prevails east of the Cascade Range. Major factors determining Washington’s climate include the large semi-permanent high pressure and low pressure systems of the North Pacific Ocean, the continental air masses of North America, and the Olympic and Cascade Mountains. In the spring and summer, a high pressure anticyclone system dominates the North Pacific Ocean, causing air to spiral out in a clockwise fashion. For Washington this means prevailing winds from the northwest bring relatively cool air and a predictably dry season.

In the autumn and winter, a low-pressure cyclone system takes over in the North Pacific Ocean, with air spiraling inward in a counter-clockwise fashion. This causes Washington’s prevailing winds to come from the southwest, bringing relatively warm and moist air masses and a predictably wet season. The term “Pineapple Express” is used colloquially to describe the extreme form of this wet season pattern.

Despite western Washington’s having a marine climate similar to those of many coastal cities of Europe, there are exceptions such as the “Big Snow” events of 1880, 1881, 1893 and 1916 and the “deep freeze” winters of 1883–84, 1915–16, 1949–50 and 1955–56, among others. During these events western Washington experienced up to 6 feet (1.8 m) of snow, sub-zero (−18 °C) temperatures, three months with snow on the ground, and lakes and rivers frozen over for weeks. Seattle’s lowest officially recorded temperature is 0 °F (−18 °C) set on January 31, 1950, but low-altitude areas approximately three hours away from Seattle have recorded lows as cold as −48 °F (−44 °C).

Weather during the cold season is greatly influenced by the Southern Oscillation. During the El Niño phase, the jet stream enters the U.S. farther south through California, therefore late fall and winter are drier than normal with less snowpack. The La Niña phase reinforces the jet stream through the Pacific Northwest, causing Washington to have even more rain and snow than average.

In 2006, the Climate Impacts Group at the University of Washington published The Impacts of Climate change in Washington’s Economy, a preliminary assessment on the risks and opportunities presented given the possibility of a rise in global temperatures and their effects on Washington state.

Rain Shadow Effects

Main article: Rain shadow

Washington experiences extensive variation in rainfall.

Rainfall in Washington varies dramatically going from east to west. The western side of the Olympic Peninsula receives as much as 160 inches (4,100 mm) of precipitation annually, making it the wettest area of the 48 conterminous states and a temperate rainforest. Weeks may pass without a clear day. The western slopes of the Cascade Range receive some of the heaviest annual snowfall (in some places more than 200 inches or 5,100 millimeters water equivalent) in the country. In the rain shadow area east of the Cascades, the annual precipitation is only 6 inches (150 mm). Precipitation then increases again eastward toward the Rocky Mountains.

The Olympic mountains and Cascades compound this climatic pattern by causing orographic lift of the air masses blown inland from the Pacific Ocean, resulting in the windward side of the mountains receiving high levels of precipitation and the leeward side receiving low levels. This occurs most dramatically around the Olympic Mountains and the Cascade Range. In both cases the windward slopes facing southwest receive high precipitation and mild, cool temperatures. While the Puget Sound lowlands are known for clouds and rain in the winter, the western slopes of the Cascades receive larger amounts of precipitation, often falling as snow at higher elevations. (Mount Baker, near the state’s northern border, is one of the snowiest places in the world: in 1999, it set the world record for snowfall in a single season: 1,140 inches (95 ft; 29 m).)

East of the Cascades, a large region experiences strong rain shadow effects. Semi-arid conditions occur in much of eastern Washington with the strongest rain shadow effects at the relatively low elevations of the central Columbia Plateau—especially the region just east of the Columbia River from about the Snake River to the Okanagan Highland. Thus instead of rain forests much of eastern Washington is covered with grassland and shrub-steppe.

Temperatures

The average annual temperature ranges from 51 °F (11 °C) on the Pacific coast to 40 °F (4 °C) in the northeast. The lowest temperature recorded in the state was −48 °F (−44 °C) in Winthrop and Mazama. The highest recorded temperature in the state was 118 °F (48 °C) at Ice Harbor Dam. Both records were set east of the Cascades. Western Washington is known for its mild climate, considerable fog, frequent cloud cover and long-lasting drizzles in the winter, and warm, temperate summers. The Eastern region occasionally experiences extreme climate. Arctic cold fronts in the winter and heat waves in the summer are not uncommon. In the Western region, temperatures have reached as high as 112 °F (44 °C) in Marietta, and as low as −20 °F (−29 °C) in Longview.

Largest Cities

See also: List of cities in Washington

Seattle

Spokane

Tacoma

Vancouver

Bellevue

The largest cities in Washington according to 2014 state estimates.

The Tri-Cities, which consists of the four neighboring cities of Kennewick, Pasco, Richland, and West Richland, has a combined population of 211,110 in official 2014 estimates which would be ranked above Tacoma.

Transportation

Washington has the largest ferry system in the United States.

Floating bridges on Lake Washington.

Washington has a system of state highways, called State Routes, as well as an extensive ferry system which is the largest in the nation and the third largest in the world. There are 140 public airfields in Washington, including 16 state airports owned by the Washington State Department of Transportation. Seattle-Tacoma International Airport (Sea-Tac) is the major commercial airport of greater Seattle. Boeing Field in Seattle is one of the busiest primary non-hub airports in the US. The unique geography of Washington creates exceptional transportation challenges.^]

There are extensive waterways in the midst of Washington’s largest cites, including Seattle, Bellevue, Tacoma and Olympia. The state highways incorporate an extensive network of bridges and the largest ferry system in the United States to serve transportation needs in the Puget Sound area. Washington’s marine highway constitutes a fleet of twenty-eight ferries that navigate Puget Sound and its inland waterways to 20 different ports of call, completing close to 147,000 sailings each year. Washington is home to four of the five longest floating bridges in the world: the Evergreen Point Floating Bridge, Lacey V. Murrow Memorial Bridge and Homer M. Hadley Memorial Bridge over Lake Washington, and the Hood Canal Bridge which connects the Olympic Peninsula and Kitsap Peninsula. Washington has a number of seaports on the Pacific Ocean, including Seattle, Tacoma, Kalama, Anacortes, Vancouver, Longview, Greys County, Olympia, and Port Angeles.

The Cascade Mountain Range also provides unique transportation challenges. Washington operates and maintains roads over seven major mountain passes and eight minor passes. During winter months some of these passes are plowed, sanded, and kept safe with avalanche control. Not all are able to stay open through the winter. The North Cascades Highway, State Route 20, closes every year. This is because the extraordinary amount of snowfall and frequency of avalanches in the area of Washington Pass make it unsafe in the winter months. The Cayuse and Chinook Passes east of Mount Rainier also close in winter.

Washington is crossed by a number of freight railroads, and Amtrak’s passenger Cascade route between Eugene, Oregon and Vancouver, BC is the eighth busiest Amtrak service in the USA and one of the few profitable routes in the system. Public transportation has generally lagged, although the much-delayed link light rail system in the greater Seattle region opened its first line in 2002. Residents of Vancouver have resisted proposals to extend Portland’s mass transit system into Washington.

Environment

In 2007, Washington became the first state in the nation to target all forms of highly toxic brominated flame retardants known as PBDEs for elimination from the many common household products in which they are used. A 2004 study of 40 mothers from Oregon, Washington, British Columbia, and Montana found PBDEs in the breast milk of every woman tested.

Three recent studies by the Washington Department of Ecology showed that toxic chemicals banned decades ago continue to linger in the environment and concentrate in the food chain. In one of the studies, state government scientists found unacceptable levels of toxic substances in 93 samples of freshwater fish collected from 45 sites. The toxic substances included PCBs; dioxins, two chlorinated pesticides, DDE and dieldrin, and PBDEs. As a result of the study, the department will investigate the sources of PCBs in the Wenatchee River, where unhealthy levels of PCBs were found in mountain whitefish. Based on the 2007 information and a previous 2004 Ecology study, the Washington State Department of Health is advising the public not to eat mountain whitefish from the Wenatchee River from Leavenworth downstream to where the river joins the Columbia, due to unhealthy levels of PCBs. Study results also indicated high levels of contaminants in fish tissue that scientists collected from Lake Washington and the Spokane River, where fish consumption advisories are already in effect.

On March 27, 2006, Governor Christine Gregoire signed into law the recently approved House Bill 2322. This bill would limit phosphorus content in dishwashing detergents statewide to 0.5 percent over the next six years. Though the ban would be effective statewide in 2010, it would take place in Whatcom County, Spokane County, and Clark County in 2008. A recent discovery had linked high contents of phosphorus in water to a boom in algae population. An invasive amount of algae in bodies of water would eventually lead to a variety of excess ecological and technological issues.

Wine

Main article: Washington wine

Washington ranks second in the United States in the production of wine, behind only California. By 2006, the state had over 31,000 acres (130 km²) of vineyards, a harvest of 120,000 short tons (109,000 t) of grapes, and exports going to over 40 countries around the world from the 600 wineries located in the state. While there are some viticulture activities in the cooler, wetter western half of the state, the majority (99%) of wine grape production takes place in the desert-like eastern half. The rain shadow of the Cascade Range leaves the Columbia River Basin with around 8 inches (200 mm) of annual rain fall, making irrigation and water rights of paramount interest to the Washington wine industry. Viticulture in the state is also influenced by long sunlight hours (on average, two more hours a day than in California during the growing season) and consistent temperatures.

Professional Sports

The Seattle Supersonics moved to Oklahoma City.