Middle Fork of the John Day River at Gorge Creek. Frozen over along a narrow tributary stream.

North Fork of the Little Butte Creek in a snow-draped winter wonderland.

North Fork of the Little Butte Creek. This small river is dammed by Fish Lake Dam.

North Fork of the Little Butte Creek in a snow-draped winter wonderland.

North Fork of the Little Butte Creek in a snow-draped winter wonderland.

The Umatilla River near Thorn Hollow showing a wide flood plain which is indicative of an unstable, shifting channel.

A winter day along the John Day River near its junction with its North Fork. The ice was 2 feet thick.

A winter day along the South Fork of the John Day River near its junction with Tunnel Creek.

Mule deer along a frozen creek bed searching for riparian vegetation. Winter is hard on wildlife.

North Fork of the John Day River frozen over below Dale.

North Fork of the John Day River frozen over below Dale.

Middle Fork of the John Day River frozen over above Caribou Creek.

Middle Fork of the John Day River frozen over near Austin.

Chester Morse Reservoir, part of Seattle's water supply, formed by damming the Cedar River.

The surprise October record snowfall

The surprise October record snowfall

The surprise October record snowfall

The surprise October record snowfall

Storm totals: 18 inches of snow at Baltimore-Washington Airport, 18 inches at Dulles, and16.4 inches at Reagan Airport.

Snowmageddon: 17.8 inches at Reagan, 25 inches at Baltimore-Washington, and 32.4 inches at Dulles Airport. By contrast, Chicago's biggest snowstorm on January 26-27, 1967, produced 23.0 inches of snow while Washington, D.C., has had 4 storms during the same time period producing over 23 inches of snow.

Storm totals: 18 inches of snow at Baltimore-Washington Airport, 18 inches at Dulles, and16.4 inches at Reagan Airport.

Snowmageddon: 17.8 inches at Reagan, 25 inches at Baltimore-Washington, and 32.4 inches at Dulles Airport. By contrast, Chicago's biggest snowstorm on January 26-27, 1967, produced 23.0 inches of snow while Washington, D.C., has had 4 storms during the same time period producing over 23 inches of snow.

Hitting right on, the January 30, 2010 snowstorm produced 4-6 inches of snow across the region.

Snowmageddon: 17.8 inches at Reagan, 25 inches at Baltimore-Washington, and 32.4 inches at Dulles Airport. By contrast, Chicago's biggest snowstorm on January 26-27, 1967, produced 23.0 inches of snow while Washington, D.C., has had 4 storms during the same time period producing over 23 inches of snow.

Storm totals: 18 inches of snow at Baltimore-Washington Airport, 18 inches at Dulles, and16.4 inches at Reagan Airport.

Storm totals: 18 inches of snow at Baltimore-Washington Airport, 18 inches at Dulles, and16.4 inches at Reagan Airport.

Snowmageddon: 17.8 inches at Reagan, 25 inches at Baltimore-Washington, and 32.4 inches at Dulles Airport. By contrast, Chicago's biggest snowstorm on January 26-27, 1967, produced 23.0 inches of snow while Washington, D.C., has had 4 storms during the same time period producing over 23 inches of snow.

Storm totals: 18 inches of snow at Baltimore-Washington Airport, 18 inches at Dulles, and16.4 inches at Reagan Airport.

Snowmageddon: 17.8 inches at Reagan, 25 inches at Baltimore-Washington, and 32.4 inches at Dulles Airport. By contrast, Chicago's biggest snowstorm on January 26-27, 1967, produced 23.0 inches of snow while Washington, D.C., has had 4 storms during the same time period producing over 23 inches of snow.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Aurora Australis, the Southern Lights. As with Aurora Borealis, these are seen during strong geomagnetic events.

Altostratus.