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 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

Report not available. See COAA for more information.

Issued at: Monday, May 01, 2023 8:40PM
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

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

Blues
Avalanche Report

Report not available. See WAC for more information.

Issued at: Tuesday, April 11, 2023 9:20AM
Issued by: WAC

Elkhorns
Avalanche Report

Report not available. See WAC for more information.

Issued at: Tuesday, April 11, 2023 9:20AM
Issued by: WAC

Northern Wallowas
Avalanche Report

Report not available. See WAC for more information.

Issued at: Tuesday, April 11, 2023 9:20AM
Issued by: WAC

Southern Wallowas
Avalanche Report

Report not available. See WAC for more information.

Issued at: Tuesday, April 11, 2023 9:20AM
Issued by: WAC

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-05-02 06:10AM Shade	70 by 1 Copy to clipboard
2023-05-02 07:40AM Shade	85 by 17 Copy to clipboard
2023-05-02 09:10AM Shade	101 by 33 Copy to clipboard
2023-05-02 10:40AM Shade	122 by 48 Copy to clipboard
2023-05-02 12:10PM Shade	154 by 59 Copy to clipboard
2023-05-02 01:40PM Shade	198 by 60 Copy to clipboard
2023-05-02 03:10PM Shade	233 by 51 Copy to clipboard
2023-05-02 04:40PM Shade	255 by 36 Copy to clipboard
2023-05-02 06:10PM Shade	272 by 20 Copy to clipboard
2023-05-02 07:40PM Shade	287 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)
2023-05-01 06:10AM Shade	70 by 2 Copy to clipboard
2023-05-01 07:40AM Shade	85 by 17 Copy to clipboard
2023-05-01 09:10AM Shade	102 by 33 Copy to clipboard
2023-05-01 10:40AM Shade	123 by 47 Copy to clipboard
2023-05-01 12:10PM Shade	155 by 58 Copy to clipboard
2023-05-01 01:40PM Shade	197 by 59 Copy to clipboard
2023-05-01 03:10PM Shade	232 by 50 Copy to clipboard
2023-05-01 04:40PM Shade	254 by 36 Copy to clipboard
2023-05-01 06:10PM Shade	272 by 20 Copy to clipboard
2023-05-01 07:40PM Shade	287 by 5 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-12 06:20AM Shade	78 by 1 Copy to clipboard
2023-04-12 07:50AM Shade	94 by 16 Copy to clipboard
2023-04-12 09:20AM Shade	112 by 31 Copy to clipboard
2023-04-12 10:50AM Shade	135 by 45 Copy to clipboard
2023-04-12 12:20PM Shade	167 by 52 Copy to clipboard
2023-04-12 01:50PM Shade	203 by 51 Copy to clipboard
2023-04-12 03:20PM Shade	232 by 41 Copy to clipboard
2023-04-12 04:50PM Shade	253 by 28 Copy to clipboard
2023-04-12 06:20PM Shade	270 by 12 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-12 06:30AM Shade	80 by 2 Copy to clipboard
2023-04-12 08:00AM Shade	96 by 18 Copy to clipboard
2023-04-12 09:30AM Shade	113 by 33 Copy to clipboard
2023-04-12 11:00AM Shade	137 by 46 Copy to clipboard
2023-04-12 12:30PM Shade	170 by 54 Copy to clipboard
2023-04-12 02:00PM Shade	207 by 51 Copy to clipboard
2023-04-12 03:30PM Shade	235 by 41 Copy to clipboard
2023-04-12 05:00PM Shade	256 by 26 Copy to clipboard
2023-04-12 06:30PM Shade	272 by 10 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-12 06:20AM Shade	79 by 1 Copy to clipboard
2023-04-12 07:50AM Shade	94 by 17 Copy to clipboard
2023-04-12 09:20AM Shade	112 by 32 Copy to clipboard
2023-04-12 10:50AM Shade	135 by 45 Copy to clipboard
2023-04-12 12:20PM Shade	168 by 53 Copy to clipboard
2023-04-12 01:50PM Shade	204 by 51 Copy to clipboard
2023-04-12 03:20PM Shade	233 by 41 Copy to clipboard
2023-04-12 04:50PM Shade	254 by 27 Copy to clipboard
2023-04-12 06:20PM Shade	271 by 12 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-12 06:20AM Shade	79 by 1 Copy to clipboard
2023-04-12 07:50AM Shade	94 by 17 Copy to clipboard
2023-04-12 09:20AM Shade	112 by 32 Copy to clipboard
2023-04-12 10:50AM Shade	135 by 45 Copy to clipboard
2023-04-12 12:20PM Shade	168 by 53 Copy to clipboard
2023-04-12 01:50PM Shade	204 by 51 Copy to clipboard
2023-04-12 03:20PM Shade	233 by 41 Copy to clipboard
2023-04-12 04:50PM Shade	254 by 27 Copy to clipboard
2023-04-12 06:20PM Shade	271 by 12 Copy to clipboard

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