Oregon Avalanche Map Layers

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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 Southern Oregon 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

Pre-populated CalTopo Map

Download Zone Shape

Download Zone Shape

Download Zone Shape

Download Zone Shape

Download Zone Shape

Download Zone Shape

Download Zone Shape

Download Zone Shape

Central Cascades
Avalanche Report

2024-04-09 Avalanche Danger

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

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

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2024-04-08 Wind Slab

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

a339-203e5001-20310f A200FF
a339-203e4001-5000f A200FF

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2024-04-08 Wet Loose

• SE to SW aspects (4001' to 5000')
• SE to SW aspects (below 4000')

a113-248e4001-5000f 0000FF
a113-248e0-4000f 0000FF

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Issued at: Sunday, April 07, 2024 8:21PM
Issued by: COAA

Newberry
Avalanche Report

Report not available. See COAA for more information.

Issued at: Sunday, December 03, 2023 8:23AM
Issued by: COAA

Mt Hood
Avalanche Report

2024-04-09 Avalanche Danger

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

a0-0e5001-20310f fff200
a0-0e4001-5000f fff200
a0-0e0-4000f 50b848

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2024-04-08 Wind Slab

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

a68-68e5001-20310f A200FF
a158-158e4001-5000f A200FF

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2024-04-08 Wet Loose

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

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

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Issued at: Sunday, April 07, 2024 6:50PM
Issued by: NWAC

Southern Oregon
Avalanche Report

Report not available. See SOAIX for more information.

Blues
Avalanche Report

Report not available. See WAC for more information.

Issued at: Monday, April 08, 2024 6:46AM
Issued by: WAC

Elkhorns
Avalanche Report

Report not available. See WAC for more information.

Issued at: Monday, April 08, 2024 6:46AM
Issued by: WAC

Northern Wallowas
Avalanche Report

Report not available. See WAC for more information.

Issued at: Monday, April 08, 2024 6:46AM
Issued by: WAC

Southern Wallowas
Avalanche Report

Report not available. See WAC for more information.

Issued at: Monday, April 08, 2024 6:46AM
Issued by: WAC

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-08 06:50AM Shade	81 by 2 Copy to clipboard
2024-04-08 08:20AM Shade	97 by 18 Copy to clipboard
2024-04-08 09:50AM Shade	115 by 34 Copy to clipboard
2024-04-08 11:20AM Shade	139 by 46 Copy to clipboard
2024-04-08 12:50PM Shade	172 by 53 Copy to clipboard
2024-04-08 02:20PM Shade	208 by 50 Copy to clipboard
2024-04-08 03:50PM Shade	236 by 39 Copy to clipboard
2024-04-08 05:20PM Shade	256 by 25 Copy to clipboard
2024-04-08 06:50PM Shade	272 by 9 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-12-04 07:40AM Shade	124 by 2 Copy to clipboard
2023-12-04 09:10AM Shade	141 by 14 Copy to clipboard
2023-12-04 10:40AM Shade	161 by 22 Copy to clipboard
2023-12-04 12:10PM Shade	184 by 24 Copy to clipboard
2023-12-04 01:40PM Shade	206 by 20 Copy to clipboard
2023-12-04 03:10PM Shade	225 by 10 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-08 06:50AM Shade	81 by 2 Copy to clipboard
2024-04-08 08:20AM Shade	98 by 18 Copy to clipboard
2024-04-08 09:50AM Shade	116 by 33 Copy to clipboard
2024-04-08 11:20AM Shade	140 by 46 Copy to clipboard
2024-04-08 12:50PM Shade	173 by 52 Copy to clipboard
2024-04-08 02:20PM Shade	208 by 49 Copy to clipboard
2024-04-08 03:50PM Shade	235 by 39 Copy to clipboard
2024-04-08 05:20PM Shade	256 by 24 Copy to clipboard
2024-04-08 06:50PM Shade	272 by 9 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-08 06:50AM Shade	81 by 1 Copy to clipboard
2024-04-08 08:20AM Shade	96 by 18 Copy to clipboard
2024-04-08 09:50AM Shade	114 by 34 Copy to clipboard
2024-04-08 11:20AM Shade	137 by 47 Copy to clipboard
2024-04-08 12:50PM Shade	171 by 55 Copy to clipboard
2024-04-08 02:20PM Shade	209 by 52 Copy to clipboard
2024-04-08 03:50PM Shade	237 by 40 Copy to clipboard
2024-04-08 05:20PM Shade	256 by 25 Copy to clipboard
2024-04-08 06:50PM Shade	272 by 9 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-09 06:30AM Shade	80 by 2 Copy to clipboard
2024-04-09 08:00AM Shade	96 by 17 Copy to clipboard
2024-04-09 09:30AM Shade	115 by 32 Copy to clipboard
2024-04-09 11:00AM Shade	138 by 45 Copy to clipboard
2024-04-09 12:30PM Shade	171 by 52 Copy to clipboard
2024-04-09 02:00PM Shade	206 by 50 Copy to clipboard
2024-04-09 03:30PM Shade	234 by 40 Copy to clipboard
2024-04-09 05:00PM Shade	255 by 25 Copy to clipboard
2024-04-09 06:30PM Shade	271 by 10 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-09 06:30AM Shade	80 by 1 Copy to clipboard
2024-04-09 08:00AM Shade	96 by 17 Copy to clipboard
2024-04-09 09:30AM Shade	114 by 33 Copy to clipboard
2024-04-09 11:00AM Shade	138 by 46 Copy to clipboard
2024-04-09 12:30PM Shade	170 by 53 Copy to clipboard
2024-04-09 02:00PM Shade	206 by 50 Copy to clipboard
2024-04-09 03:30PM Shade	235 by 40 Copy to clipboard
2024-04-09 05:00PM Shade	255 by 26 Copy to clipboard
2024-04-09 06:30PM Shade	272 by 10 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-09 06:30AM Shade	81 by 2 Copy to clipboard
2024-04-09 08:00AM Shade	97 by 18 Copy to clipboard
2024-04-09 09:30AM Shade	115 by 33 Copy to clipboard
2024-04-09 11:00AM Shade	139 by 46 Copy to clipboard
2024-04-09 12:30PM Shade	171 by 52 Copy to clipboard
2024-04-09 02:00PM Shade	207 by 50 Copy to clipboard
2024-04-09 03:30PM Shade	235 by 39 Copy to clipboard
2024-04-09 05:00PM Shade	255 by 25 Copy to clipboard
2024-04-09 06:30PM Shade	272 by 9 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-09 06:30AM Shade	81 by 2 Copy to clipboard
2024-04-09 08:00AM Shade	97 by 18 Copy to clipboard
2024-04-09 09:30AM Shade	115 by 33 Copy to clipboard
2024-04-09 11:00AM Shade	139 by 46 Copy to clipboard
2024-04-09 12:30PM Shade	172 by 53 Copy to clipboard
2024-04-09 02:00PM Shade	207 by 50 Copy to clipboard
2024-04-09 03:30PM Shade	235 by 39 Copy to clipboard
2024-04-09 05:00PM Shade	256 by 25 Copy to clipboard
2024-04-09 06:30PM Shade	272 by 9 Copy to clipboard

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