Alaska

Arizona

Utah

Florida

Idaho

Vermont

Washington

Wyoming

Montana

Maine

North Dakota

Kentucky

Virginia

Delaware

Mississippi

West Virginia

Nebraska

Texas

Missouri

Louisiana

Hawaii

North Carolina

Oregon

Alabama

New Mexico

Kansas

Wisconsin

New Jersey

South Carolina

Michigan

Pennsylvania

Colorado

Nevada

Massachusetts

Georgia

New York

Maryland

Oklahoma

Tennessee

California

Arkansas

South Dakota

Ohio

Indiana

Minnesota

Iowa

Illinois

None

In the U.S., notable locations with radars (green circles) include Portland, San Francisco, Los Angeles, San Diego, Denver, Dallas, Chicago, and Miami. Almost every state has at least one radar, except for Rhode Island, Connecticut, and New Hampshire.

Locations of U.S. National Weather Service Doppler radars

Doppler Radar Sites (U.S.)

North America

NOAA

Yukon

Northwest Territories

District of Columbia

New Hampshire

Rhode Island

Nunavut

Nova Scotia

Prince Edward Island

Saskatchewan

New Brunswick

British Columbia

Newfoundland and Labrador

Alberta

Connecticut

Québec

Manitoba

Ontario

A world map shows water resources vulnerability.

Measure of projected water stress in the year 2020; water stress is the ratio of total annual water withdrawals to total available annual renewable supply.

Water Resources Vulnerability

Areas shaded in light yellow represent regions with arid and low water use, predominantly found in parts of Australia (central regions), Egypt, Saudi Arabia, Libya, Mauritania, and Yemen. Regions with low vulnerability, less than 10 percent, are shown in light orange and are primarily located in most parts of Africa, South America, Canada, Russia, most of Asia. Areas with low-medium vulnerability, ranging from 10 to 20 percent, are depicted in orange and are scattered throughout some parts of Japan and U S A, some parts of Asia and Europe. Medium-high vulnerability areas, between 20 to 40 percent, are shown in light red and are mainly found in South Africa, China, and many more. High vulnerability regions, ranging from 40 to 80 percent, are shaded in red and are located in parts of U S A, Europe, and Asia. Areas with extremely high vulnerability, over 80 percent, are shown in dark red and include most of U S A and Asia. Some areas such as Greenland and South Pole are marked with a gray shade, indicating no data available for those regions.

World

World Resources Institute

The map shows the distribution of some of the world’s major hydroelectric dams and power-generating stations. In North America, these facilities are found in Canada in British Columbia, Ontario, Quebec, and Labrador. In the United States, they are on major rivers in the Pacific Northwest (for example, the Columbia River), Arizona and Utah (on the Colorado River), and in the Northeast in New York (on the Niagara River between United States and Canada) and New England. In South America, dams generate hydro power in Venezuela, Colombia, Brazil (particularly on the Paraná River and its tributaries), and in Argentina on the Rio de la Plata and on rivers that flow from the Andes mountains. In Europe, major hydroelectric facilities are found in Portugal, Norway, France, Switzerland, Ukraine (on the Dnieper River), and in Russia (on the Volga and on rivers in Siberia, which is in Asia). In Africa, these facilities have been constructed on the Nile River in Egypt, Sudan, and Ethiopia and between Zambia and Zimbabwe on the Zambesi River. In Southwest Asia, hydroelectric dams generate power on the Euphrates River in Turkey, the Tigris in Iraq, and Iran’s Zagros Mountains. In Central Asia, Tajikistan has a hydroelectric dam. In South Asia, dams have been constructed on rivers in northern Pakistan; in India on rivers in Kashmir in the north as well as in several places in central and southern India; and in Bhutan. In Southeast Asia, these facilities are found in Laos and Vietnam and in Indonesia on the islands of Java and Borneo. In East Asia, southwestern and central China have numerous hydroelectric dams, and there are also a few in northern China. Japan has a major hydroelectric dam between Tokyo and Osaka. The map does not show any hydropower production for Oceania.

The world's primary regions for producing hydroelectricity at dammed river power plants

Display by:	Doppler Radar Sites (U.S.)	Water Resources Vulnerability							Hydroelectric Power Production
	Doppler Radar Sites (US)	No data	Arid and low water use	Low (<10%)	Low-medium (10-20%)	Medium-high (20-40%)	High (40-80%)	Extremely high (>80%)	Hydroelectric Power Production
Alaska	1		0.132%	87.9%	0.193%	0.154%		1.32%
Utah	2		20.8%	13.7%		0.313%	0.420%	49.5%
Yukon			0.923%	99.0%
Northwest Territories			0.342%	3.62%
District of Columbia						100%
Florida	1			10.4%	12.0%	0.279%	0.266%	0.590%
Idaho	1		0.772%	13.8%		28.4%	8.83%	44.9%
New Hampshire				17.2%	33.7%	40.5%	8.46%
Rhode Island				0.183%		86.5%	6.09%
Vermont	1			7.27%	88.3%	4.41%
Wyoming	1		21.7%				0.541%	70.3%
Nunavut			0.979%	18.2%
Montana	1		28.7%	2.60%		14.6%	5.24%	35.2%
Maine	1			94.9%	2.65%	0.228%	0.817%
North Dakota	1		7.38%	3.22%	4.45%	0.249%	9.67%	36.7%
Kentucky	1			76.6%	17.7%	5.68%
Nova Scotia		0.182%		80.1%
Delaware	1			0.105%		37.7%	61.1%
Prince Edward Island				98.5%
Saskatchewan			4.25%	59.9%	2.62%	2.54%	2.67%	0.868%
Mississippi	1			74.5%	1.57%	23.9%
West Virginia	1			63.6%	17.6%	14.6%
Nebraska	1		0.605%		3.54%		22.3%	73.5%
Texas	1		4.07%	3.41%	2.84%	1.94%	22.5%	2.71%
Missouri	2			45.5%	14.9%	0.131%	5.37%
Louisiana	1			54.5%	20.6%	5.75%
Hawaii	1	7.82%
North Carolina	1	0.116%		12.2%	54.7%	3.14%		0.982%
New Brunswick				99.5%
Alabama	1			92.6%	5.45%	0.987%
New Mexico	1		30.3%	0.128%			7.32%	21.7%
Kansas	2			0.176%	1.82%	13.8%		68.4%
Wisconsin	2			5.67%		25.0%	40.8%	9.68%
New Jersey	2			0.162%		3.07%	94.0%	1.76%
Alberta			3.52%	56.8%	0.267%	4.01%	3.67%	11.4%
Colorado	1		0.795%				9.40%	85.2%
Nevada	1		8.21%	0.731%	1.40%	0.413%	2.80%	24.0%
Maryland	1			0.151%	4.45%	64.3%	1.05%	8.49%
Oklahoma	1			11.4%	5.60%	4.28%	17.9%	30.0%
Arkansas	1			12.6%	46.8%	33.2%	6.01%
South Dakota	1		32.7%	3.47%			37.3%	22.0%
Ohio	1			3.42%		0.721%	29.0%
Indiana	2			0.434%		1.19%	8.61%	4.78%
Minnesota	2			21.0%	3.81%	13.1%	23.4%	22.0%
Iowa	1			26.6%	12.5%	44.0%	16.3%	0.628%
Illinois	1			30.9%		0.187%	44.1%	9.75%
Arizona	1		3.34%	9.37%	6.97%	0.448%		4.52%	1
Washington	1			72.6%	3.37%	5.42%	0.287%	6.53%	1
Virginia	1			11.9%	0.775%	16.4%	1.64%		1
Oregon	1		14.3%	48.2%	11.8%	4.82%	0.772%	0.847%	1
British Columbia				92.0%	1.55%	0.285%			1
Newfoundland and Labrador				74.5%					1
South Carolina	1			0.748%	24.6%	36.2%			1
Michigan	1			56.0%		3.00%	4.63%	9.70%	1
Connecticut				0.460%	29.6%	24.9%	23.8%	1.35%	1
Pennsylvania	1			1.42%	27.8%	49.9%	3.96%		1
Massachusetts	2	0.206%		0.166%	33.6%	8.30%	30.7%		1
Georgia	1			8.71%	47.0%	37.9%			1
New York	1			25.4%	5.89%	56.3%	5.19%	0.401%	1
Québec				99.1%	0.240%				1
Manitoba			0.656%	83.1%	11.7%	2.04%		1.39%	1
Tennessee	2			90.1%	5.50%				1
Ontario				97.2%	1.67%	1.13%			1
California	1		0.688%	12.5%	0.232%	17.8%	2.26%	1.00%	1

MapMaster 3

Doppler Radar Sites (U.S.)