Wyoming 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: Greys River Tetons Togwotee Pass Big Horns Sierra Madre Snowy Range

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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

Download Zone Shape

Download Zone Shape

Download Zone Shape

Download Zone Shape

Download Zone Shape

Download Zone Shape

Greys River
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Saturday, June 01, 2024 8:00AM
Issued by: BTAC

Tetons
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Saturday, June 01, 2024 8:00AM
Issued by: BTAC

Togwotee Pass
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Saturday, June 01, 2024 8:00AM
Issued by: BTAC

Big Horns
Avalanche Report

Report not available. See EWYAIX for more information.

Sierra Madre
Avalanche Report

Report not available. See EWYAIX for more information.

Snowy Range
Avalanche Report

Report not available. See EWYAIX for more information.

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-06-02 06:00AM Shade	60 by 1 Copy to clipboard
2024-06-02 07:30AM Shade	75 by 17 Copy to clipboard
2024-06-02 09:00AM Shade	89 by 33 Copy to clipboard
2024-06-02 10:30AM Shade	106 by 49 Copy to clipboard
2024-06-02 12:00PM Shade	134 by 63 Copy to clipboard
2024-06-02 01:30PM Shade	186 by 69 Copy to clipboard
2024-06-02 03:00PM Shade	233 by 61 Copy to clipboard
2024-06-02 04:30PM Shade	258 by 46 Copy to clipboard
2024-06-02 06:00PM Shade	274 by 30 Copy to clipboard
2024-06-02 07:30PM Shade	288 by 13 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-06-02 06:00AM Shade	60 by 2 Copy to clipboard
2024-06-02 07:30AM Shade	75 by 17 Copy to clipboard
2024-06-02 09:00AM Shade	90 by 33 Copy to clipboard
2024-06-02 10:30AM Shade	107 by 49 Copy to clipboard
2024-06-02 12:00PM Shade	135 by 63 Copy to clipboard
2024-06-02 01:30PM Shade	185 by 69 Copy to clipboard
2024-06-02 03:00PM Shade	232 by 60 Copy to clipboard
2024-06-02 04:30PM Shade	257 by 46 Copy to clipboard
2024-06-02 06:00PM Shade	273 by 30 Copy to clipboard
2024-06-02 07:30PM Shade	288 by 14 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-06-02 05:50AM Shade	59 by 1 Copy to clipboard
2024-06-02 07:20AM Shade	74 by 15 Copy to clipboard
2024-06-02 08:50AM Shade	88 by 31 Copy to clipboard
2024-06-02 10:20AM Shade	106 by 48 Copy to clipboard
2024-06-02 11:50AM Shade	132 by 62 Copy to clipboard
2024-06-02 01:20PM Shade	181 by 68 Copy to clipboard
2024-06-02 02:50PM Shade	229 by 61 Copy to clipboard
2024-06-02 04:20PM Shade	255 by 47 Copy to clipboard
2024-06-02 05:50PM Shade	272 by 31 Copy to clipboard
2024-06-02 07:20PM Shade	287 by 15 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-06-05 05:40AM Shade	59 by 1 Copy to clipboard
2024-06-05 07:10AM Shade	74 by 16 Copy to clipboard
2024-06-05 08:40AM Shade	89 by 32 Copy to clipboard
2024-06-05 10:10AM Shade	106 by 48 Copy to clipboard
2024-06-05 11:40AM Shade	133 by 62 Copy to clipboard
2024-06-05 01:10PM Shade	181 by 68 Copy to clipboard
2024-06-05 02:40PM Shade	228 by 61 Copy to clipboard
2024-06-05 04:10PM Shade	255 by 47 Copy to clipboard
2024-06-05 05:40PM Shade	272 by 31 Copy to clipboard
2024-06-05 07:10PM Shade	287 by 15 Copy to clipboard
2024-06-05 08:40PM Shade	302 by 1 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-06-05 05:50AM Shade	61 by 1 Copy to clipboard
2024-06-05 07:20AM Shade	75 by 17 Copy to clipboard
2024-06-05 08:50AM Shade	88 by 34 Copy to clipboard
2024-06-05 10:20AM Shade	105 by 50 Copy to clipboard
2024-06-05 11:50AM Shade	133 by 65 Copy to clipboard
2024-06-05 01:20PM Shade	189 by 71 Copy to clipboard
2024-06-05 02:50PM Shade	237 by 62 Copy to clipboard
2024-06-05 04:20PM Shade	260 by 46 Copy to clipboard
2024-06-05 05:50PM Shade	276 by 29 Copy to clipboard
2024-06-05 07:20PM Shade	289 by 12 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-06-05 05:50AM Shade	61 by 2 Copy to clipboard
2024-06-05 07:20AM Shade	75 by 18 Copy to clipboard
2024-06-05 08:50AM Shade	89 by 34 Copy to clipboard
2024-06-05 10:20AM Shade	106 by 51 Copy to clipboard
2024-06-05 11:50AM Shade	135 by 66 Copy to clipboard
2024-06-05 01:20PM Shade	191 by 71 Copy to clipboard
2024-06-05 02:50PM Shade	238 by 61 Copy to clipboard
2024-06-05 04:20PM Shade	261 by 45 Copy to clipboard
2024-06-05 05:50PM Shade	276 by 28 Copy to clipboard
2024-06-05 07:20PM Shade	290 by 12 Copy to clipboard

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