Oregon Avalanche Maps

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"What's the danger?" Here are autogenerated DEM Shading rules for each advisory zone that allow for quickly adding avalanche danger, problems, and sun angle layers to CalTopo maps. Reports sourced from avalanche.org.

Show Instructions

Digital Elevation Model (DEM) shading let's you create custom shading schemes based on elevation, slope, aspect and tree cover.

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Avalanche Report

Danger report updates are fetched at 7:33pm and 7:33am. The selected elevation bands are not meant to be exact, but represent a characteristic of the terrain which varies locally.

The highest band typically includes alpine areas beginning as the treeline transitions into open slopes extending to ridges and peaks.

The middle band is typically a narrow transition zone between dense forests and treeless alpine areas.

The lowest band typically extends from valley floors or snowline to near treeline.

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Usage

You'll find that Terrain Modeling in the left pane will show layers that can be turned on and edited. The right pane will show Custom Layers that can be toggled on or off.

Select A Zone: Central Cascades Newberry Mt Hood Blues Elkhorns Northern Wallowas Southern Wallowas

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Pre-populated CalTopo Map

Pre-populated CalTopo Map

Pre-populated CalTopo Map

Pre-populated CalTopo Map

Pre-populated CalTopo Map

Pre-populated CalTopo Map

Pre-populated CalTopo Map

Central Cascades
Avalanche Report

2023-04-02 Avalanche Danger

• Considerable danger (above 5001')
• Considerable danger (4001' to 5000')
• Considerable danger (below 4000')

a0-0e5001-20310f f7941e
a0-0e4001-5000f f7941e
a0-0e0-4000f f7941e

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2023-04-01 Wind Slab

• NW to S aspects (above 5001')
• NW to S aspects (4001' to 5000')

a293-203e5001-20310f A200FF
a293-203e4001-5000f A200FF

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2023-04-01 Storm Slab

• All aspects (above 5001')
• All aspects (4001' to 5000')
• All aspects (below 4000')

a158-158e5001-20310f 0000FF
a158-158e4001-5000f 0000FF
a158-158e0-4000f 0000FF

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2023-04-01 Dry Loose

• All aspects (above 5001')
• All aspects (4001' to 5000')
• All aspects (below 4000')

a158-158e5001-20310f 009AFF
a158-158e4001-5000f 009AFF
a158-158e0-4000f 009AFF

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Issued at: Friday, March 31, 2023 9:07PM
Issued by: COAA

Newberry
Avalanche Report

Report not available. See COAA for more information.

Issued at: Wednesday, November 30, 2022 8:12AM
Issued by: COAA

Mt Hood
Avalanche Report

2023-04-02 Avalanche Danger

• Considerable danger (above 5001')
• Considerable danger (4001' to 5000')
• Considerable danger (below 4000')

a0-0e5001-20310f f7941e
a0-0e4001-5000f f7941e
a0-0e0-4000f f7941e

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2023-04-02 Wind Slab

• All aspects (above 5001')
• All aspects (4001' to 5000')

a113-113e5001-20310f A200FF
a158-158e4001-5000f A200FF

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2023-04-02 Storm Slab

• All aspects (4001' to 5000')
• All aspects (below 4000')

a158-158e4001-5000f 0000FF
a158-158e0-4000f 0000FF

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Issued at: Saturday, April 01, 2023 6:30PM
Issued by: NWAC

Blues
Avalanche Report

2023-04-02 Avalanche Danger

• Considerable danger (above 5001')
• Considerable danger (4001' to 5000')
• Moderate danger (below 4000')

a0-0e5001-20310f f7941e
a0-0e4001-5000f f7941e
a0-0e0-4000f fff200

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2023-04-02 Wind Slab

• W to E aspects (above 5001')
• W to E aspects (4001' to 5000')

a248-113e5001-20310f A200FF
a248-113e4001-5000f A200FF

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2023-04-02 Storm Slab

• All aspects (below 4000')

a203-203e0-4000f 0000FF

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Issued at: Saturday, April 01, 2023 7:00AM
Issued by: WAC

Elkhorns
Avalanche Report

2023-04-02 Avalanche Danger

• Considerable danger (above 5001')
• Considerable danger (4001' to 5000')
• Moderate danger (below 4000')

a0-0e5001-20310f f7941e
a0-0e4001-5000f f7941e
a0-0e0-4000f fff200

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2023-04-02 Wind Slab

• W to E aspects (above 5001')
• W to E aspects (4001' to 5000')

a248-113e5001-20310f A200FF
a248-113e4001-5000f A200FF

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2023-04-02 Storm Slab

• All aspects (below 4000')

a203-203e0-4000f 0000FF

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Issued at: Saturday, April 01, 2023 7:00AM
Issued by: WAC

Northern Wallowas
Avalanche Report

2023-04-02 Avalanche Danger

• Considerable danger (above 5001')
• Considerable danger (4001' to 5000')
• Moderate danger (below 4000')

a0-0e5001-20310f f7941e
a0-0e4001-5000f f7941e
a0-0e0-4000f fff200

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2023-04-02 Wind Slab

• W to E aspects (above 5001')
• W to E aspects (4001' to 5000')

a248-113e5001-20310f A200FF
a248-113e4001-5000f A200FF

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2023-04-02 Storm Slab

• All aspects (below 4000')

a203-203e0-4000f 0000FF

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Issued at: Saturday, April 01, 2023 7:00AM
Issued by: WAC

Southern Wallowas
Avalanche Report

2023-04-02 Avalanche Danger

• Considerable danger (above 5001')
• Considerable danger (4001' to 5000')
• Moderate danger (below 4000')

a0-0e5001-20310f f7941e
a0-0e4001-5000f f7941e
a0-0e0-4000f fff200

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2023-04-02 Wind Slab

• W to E aspects (above 5001')
• W to E aspects (4001' to 5000')

a248-113e5001-20310f A200FF
a248-113e4001-5000f A200FF

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2023-04-02 Storm Slab

• All aspects (below 4000')

a203-203e0-4000f 0000FF

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Issued at: Saturday, April 01, 2023 7:00AM
Issued by: WAC

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-01 07:00AM Shade	85 by 1 Copy to clipboard
2023-04-01 08:30AM Shade	101 by 17 Copy to clipboard
2023-04-01 10:00AM Shade	119 by 32 Copy to clipboard
2023-04-01 11:30AM Shade	143 by 45 Copy to clipboard
2023-04-01 01:00PM Shade	176 by 50 Copy to clipboard
2023-04-01 02:30PM Shade	210 by 47 Copy to clipboard
2023-04-01 04:00PM Shade	236 by 36 Copy to clipboard
2023-04-01 05:30PM Shade	255 by 21 Copy to clipboard
2023-04-01 07:00PM Shade	272 by 5 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2022-12-01 07:30AM Shade	122 by 1 Copy to clipboard
2022-12-01 09:00AM Shade	139 by 13 Copy to clipboard
2022-12-01 10:30AM Shade	159 by 22 Copy to clipboard
2022-12-01 12:00PM Shade	182 by 24 Copy to clipboard
2022-12-01 01:30PM Shade	204 by 21 Copy to clipboard
2022-12-01 03:00PM Shade	223 by 12 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-02 07:00AM Shade	85 by 2 Copy to clipboard
2023-04-02 08:30AM Shade	101 by 17 Copy to clipboard
2023-04-02 10:00AM Shade	120 by 32 Copy to clipboard
2023-04-02 11:30AM Shade	144 by 44 Copy to clipboard
2023-04-02 01:00PM Shade	176 by 50 Copy to clipboard
2023-04-02 02:30PM Shade	209 by 46 Copy to clipboard
2023-04-02 04:00PM Shade	236 by 35 Copy to clipboard
2023-04-02 05:30PM Shade	255 by 21 Copy to clipboard
2023-04-02 07:00PM Shade	272 by 5 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-02 06:40AM Shade	84 by 1 Copy to clipboard
2023-04-02 08:10AM Shade	100 by 16 Copy to clipboard
2023-04-02 09:40AM Shade	118 by 31 Copy to clipboard
2023-04-02 11:10AM Shade	142 by 43 Copy to clipboard
2023-04-02 12:40PM Shade	174 by 49 Copy to clipboard
2023-04-02 02:10PM Shade	207 by 46 Copy to clipboard
2023-04-02 03:40PM Shade	234 by 36 Copy to clipboard
2023-04-02 05:10PM Shade	254 by 22 Copy to clipboard
2023-04-02 06:40PM Shade	271 by 6 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-02 06:40AM Shade	84 by 1 Copy to clipboard
2023-04-02 08:10AM Shade	100 by 17 Copy to clipboard
2023-04-02 09:40AM Shade	118 by 32 Copy to clipboard
2023-04-02 11:10AM Shade	142 by 44 Copy to clipboard
2023-04-02 12:40PM Shade	174 by 50 Copy to clipboard
2023-04-02 02:10PM Shade	208 by 47 Copy to clipboard
2023-04-02 03:40PM Shade	234 by 37 Copy to clipboard
2023-04-02 05:10PM Shade	254 by 22 Copy to clipboard
2023-04-02 06:40PM Shade	271 by 6 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-02 06:40AM Shade	84 by 1 Copy to clipboard
2023-04-02 08:10AM Shade	100 by 17 Copy to clipboard
2023-04-02 09:40AM Shade	119 by 32 Copy to clipboard
2023-04-02 11:10AM Shade	143 by 44 Copy to clipboard
2023-04-02 12:40PM Shade	175 by 50 Copy to clipboard
2023-04-02 02:10PM Shade	208 by 46 Copy to clipboard
2023-04-02 03:40PM Shade	235 by 36 Copy to clipboard
2023-04-02 05:10PM Shade	255 by 22 Copy to clipboard
2023-04-02 06:40PM Shade	271 by 6 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-02 06:40AM Shade	84 by 1 Copy to clipboard
2023-04-02 08:10AM Shade	100 by 17 Copy to clipboard
2023-04-02 09:40AM Shade	119 by 32 Copy to clipboard
2023-04-02 11:10AM Shade	143 by 44 Copy to clipboard
2023-04-02 12:40PM Shade	175 by 50 Copy to clipboard
2023-04-02 02:10PM Shade	209 by 47 Copy to clipboard
2023-04-02 03:40PM Shade	235 by 36 Copy to clipboard
2023-04-02 05:10PM Shade	255 by 22 Copy to clipboard
2023-04-02 06:40PM Shade	271 by 6 Copy to clipboard

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