Alaska

None

A map shows the minimum sea ice extent and glacial loss (2010 to 2020), marked by blue circles. The largest glacial loss is in the Gulf of Alaska, 83.1 gigatons, and the smallest in Iceland, Antarctic, and Subantarctic, 3.5 gigatons.

Loss of glacial ice between 1961 and 2016 measured using satellite imagery and field observations.

Glacial Loss 2010-2020

World

Gigatonnes

Arizona

Utah

Yukon

Northwest Territories

District of Columbia

Florida

Idaho

New Hampshire

Rhode Island

Vermont

Washington

Wyoming

Nunavut

Montana

Maine

North Dakota

Kentucky

Nova Scotia

Virginia

Delaware

Prince Edward Island

Saskatchewan

Mississippi

West Virginia

Nebraska

Texas

Missouri

Louisiana

Hawaii

North Carolina

Oregon

New Brunswick

Alabama

New Mexico

Kansas

Wisconsin

British Columbia

Newfoundland and Labrador

New Jersey

South Carolina

Michigan

Alberta

Connecticut

Pennsylvania

Colorado

Nevada

Massachusetts

Georgia

New York

Maryland

Québec

Manitoba

Oklahoma

Tennessee

Ontario

California

Arkansas

South Dakota

Ohio

Indiana

Minnesota

Iowa

Illinois

A global map shows lightning flashes per square kilometer per year (flashes per square kilometer per year).

Lightning flashes per square kilometer per year (flashes/km²/year)

Lightning Frequency

The map illustrates global lightning frequency. Areas with less than 0.1 flashes per square kilometer per year are shaded in light green and include most ocean regions, northern Canada, the Sahara Desert, and parts of western and northern Europe. Areas with 0.1 flashes per square kilometer per year are shaded in light yellow and are scattered along parts of oceanic regions and coastal regions. Regions with 0.2 flashes per square kilometer per year are shaded in light purple and include parts of oceanic regions, coastal regions in the north of Canada and Russia. Areas with 0.4 flashes per square kilometer per year are shaded in red and are scattered along the Atlantic ocean, coastal regions on the north of Russia, Indian Ocean, and Pacific ocean. Areas with 0.6 flashes per square kilometer per year to 1 flash per square kilometer per year are shaded in blue to light green, covering northern Canada, the contiguous United States (excluding the Southeast), parts of South America, much of northern region of Europe, most of Africa south of the Sahara, and most of South, East, and Southeast Asia, including south of Australia. Areas experiencing 2 to 10 flashes per square kilometer per year, indicated by pink to blue shades, include the Southeastern United States, parts of Central and South America, and large areas in Africa, South, East, and Southeast Asia. High lightning frequency regions (20 to 50 flashes per square kilometer per year) are highlighted in dark pink to dark red, located in Southeastern United States, Colombia in South America, Central Africa (notably the Democratic Republic of Congo), and Southeast Asia, particularly in Indonesia, Vietnam, and Cambodia.

Display by:	Glacial Loss 2010-2020	Lightning Frequency
	Alaska	Lightning Frequency	<0.1 flashes/km²/year	0.1 flashes/km²/year	0.2 flashes/km²/year	0.4 flashes/km²/year	0.6 flashes/km²/year	0.8 flashes/km²/year	1 flash/km²/year	2 flashes/km²/year	4 flashes/km²/year	6 flashes/km²/year	8 flashes/km²/year	10 flashes/km²/year	20 flashes/km²/year	30 flashes/km²/year
Alaska		6.63%	1.78%	25.5%	0.226%	5.17%
Arizona										1.13%	23.6%	20.0%	37.0%	18.2%
Utah										22.2%	65.3%	0.130%
Yukon			2.57%	1.17%	39.3%	42.1%	0.676%	0.532%	2.01%
Northwest Territories		10.4%	11.3%	1.93%	1.61%	13.9%	14.4%	4.36%	8.69%
District of Columbia														100%
Florida														0.168%	52.7%	47.1%
Idaho									8.51%	90.0%
New Hampshire										77.0%	23.0%
Rhode Island										100%
Vermont										4.97%	95.0%
Washington				1.04%	10.6%	19.8%	20.2%	12.1%	35.6%	0.648%
Wyoming										48.7%	16.7%	16.6%	10.4%	7.61%
Nunavut		41.3%	36.7%	7.71%	1.80%	1.53%	0.139%
Montana									1.84%	16.7%	6.56%	12.0%	2.35%
Maine									5.45%	71.9%
North Dakota										5.40%	24.2%	48.6%	17.6%
Kentucky														100%
Nova Scotia					8.11%	10.6%	36.1%	17.3%	27.8%
Virginia												0.585%	33.4%	66.0%
Delaware										1.09%	21.6%	74.1%	3.24%
Prince Edward Island						2.52%	8.96%	20.3%	68.2%
Saskatchewan							0.267%	0.717%	31.5%	16.7%	3.54%
Mississippi														53.6%	46.4%
West Virginia													90.8%	9.25%
Nebraska													2.93%	89.3%	7.74%
Texas												1.17%	8.70%	65.9%	24.2%
Missouri														97.2%	2.76%
Louisiana															100%
Hawaii			0.113%	0.444%	32.9%	60.0%
North Carolina														100%
Oregon				0.565%	3.81%	5.52%	5.86%	3.52%	49.6%	23.8%
New Brunswick								0.276%	0.234%	58.0%
Alabama														41.8%	58.2%
New Mexico												7.94%	33.3%	53.7%
Kansas														96.1%	3.88%
Wisconsin										0.368%	53.9%	28.7%	12.9%	3.74%
British Columbia			1.64%	6.95%	12.6%	20.1%	4.57%	5.28%	0.164%	6.19%
Newfoundland and Labrador			5.05%	7.84%	8.94%	30.5%	12.3%	3.57%	0.308%
New Jersey											9.73%	90.3%
South Carolina														85.1%	14.9%
Michigan										1.83%	31.7%	16.4%	14.6%	8.66%
Alberta									22.8%	73.1%	3.13%
Connecticut										77.5%	20.8%	1.09%
Pennsylvania											7.74%	34.9%	57.3%
Colorado										3.18%	32.7%	15.2%	10.5%	30.1%	8.34%
Nevada								1.83%	39.4%	47.0%	11.8%
Massachusetts									2.27%	79.0%	18.5%
Georgia														48.4%	51.6%
New York										16.1%	65.1%	18.0%	0.137%
Maryland											2.23%	17.7%	58.3%	21.7%
Québec			11.0%	4.90%	11.5%	3.83%	3.39%	3.67%	19.7%	17.8%	0.183%
Manitoba						2.65%	4.40%	2.91%	25.0%	48.7%	10.4%
Oklahoma														64.4%	35.6%
Tennessee														100%
Ontario							2.58%	3.28%	0.872%	19.2%	2.31%	2.14%	0.326%	0.285%
California				2.29%	10.6%	16.3%	5.69%	2.96%	35.4%	15.6%	1.52%
Arkansas														15.7%	84.3%
South Dakota												2.09%	52.0%	45.9%
Ohio													23.4%	76.6%
Indiana														100%
Minnesota										13.4%	3.05%	20.4%	21.8%	9.11%
Iowa											5.30%	6.65%	14.4%	73.6%
Illinois													1.50%	98.5%

MapMaster 3

Glacial Loss 2010-2020