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: Tuesday, April 23, 2024 7:00AM
Issued by: BTAC

Tetons
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Tuesday, April 23, 2024 7:00AM
Issued by: BTAC

Togwotee Pass
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Tuesday, April 23, 2024 7:00AM
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)
2024-04-24 06:40AM Shade	73 by 2 Copy to clipboard
2024-04-24 08:10AM Shade	88 by 18 Copy to clipboard
2024-04-24 09:40AM Shade	105 by 34 Copy to clipboard
2024-04-24 11:10AM Shade	126 by 49 Copy to clipboard
2024-04-24 12:40PM Shade	160 by 59 Copy to clipboard
2024-04-24 02:10PM Shade	203 by 59 Copy to clipboard
2024-04-24 03:40PM Shade	236 by 48 Copy to clipboard
2024-04-24 05:10PM Shade	257 by 33 Copy to clipboard
2024-04-24 06:40PM Shade	273 by 16 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-24 06:40AM Shade	73 by 2 Copy to clipboard
2024-04-24 08:10AM Shade	89 by 18 Copy to clipboard
2024-04-24 09:40AM Shade	105 by 34 Copy to clipboard
2024-04-24 11:10AM Shade	127 by 49 Copy to clipboard
2024-04-24 12:40PM Shade	161 by 58 Copy to clipboard
2024-04-24 02:10PM Shade	203 by 58 Copy to clipboard
2024-04-24 03:40PM Shade	235 by 47 Copy to clipboard
2024-04-24 05:10PM Shade	256 by 33 Copy to clipboard
2024-04-24 06:40PM Shade	273 by 17 Copy to clipboard
2024-04-24 08:10PM Shade	288 by 1 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-24 06:30AM Shade	72 by 1 Copy to clipboard
2024-04-24 08:00AM Shade	87 by 16 Copy to clipboard
2024-04-24 09:30AM Shade	104 by 33 Copy to clipboard
2024-04-24 11:00AM Shade	125 by 47 Copy to clipboard
2024-04-24 12:30PM Shade	157 by 58 Copy to clipboard
2024-04-24 02:00PM Shade	199 by 58 Copy to clipboard
2024-04-24 03:30PM Shade	233 by 48 Copy to clipboard
2024-04-24 05:00PM Shade	255 by 34 Copy to clipboard
2024-04-24 06:30PM Shade	271 by 18 Copy to clipboard
2024-04-24 08:00PM Shade	287 by 2 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-25 06:20AM Shade	72 by 1 Copy to clipboard
2024-04-25 07:50AM Shade	88 by 17 Copy to clipboard
2024-04-25 09:20AM Shade	104 by 33 Copy to clipboard
2024-04-25 10:50AM Shade	126 by 47 Copy to clipboard
2024-04-25 12:20PM Shade	158 by 57 Copy to clipboard
2024-04-25 01:50PM Shade	200 by 58 Copy to clipboard
2024-04-25 03:20PM Shade	233 by 48 Copy to clipboard
2024-04-25 04:50PM Shade	255 by 34 Copy to clipboard
2024-04-25 06:20PM Shade	272 by 18 Copy to clipboard
2024-04-25 07:50PM Shade	287 by 2 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-25 06:30AM Shade	74 by 2 Copy to clipboard
2024-04-25 08:00AM Shade	88 by 19 Copy to clipboard
2024-04-25 09:30AM Shade	104 by 36 Copy to clipboard
2024-04-25 11:00AM Shade	126 by 51 Copy to clipboard
2024-04-25 12:30PM Shade	161 by 61 Copy to clipboard
2024-04-25 02:00PM Shade	207 by 60 Copy to clipboard
2024-04-25 03:30PM Shade	239 by 48 Copy to clipboard
2024-04-25 05:00PM Shade	259 by 33 Copy to clipboard
2024-04-25 06:30PM Shade	274 by 16 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-25 06:20AM Shade	73 by 1 Copy to clipboard
2024-04-25 07:50AM Shade	87 by 18 Copy to clipboard
2024-04-25 09:20AM Shade	103 by 34 Copy to clipboard
2024-04-25 10:50AM Shade	124 by 50 Copy to clipboard
2024-04-25 12:20PM Shade	158 by 61 Copy to clipboard
2024-04-25 01:50PM Shade	204 by 60 Copy to clipboard
2024-04-25 03:20PM Shade	237 by 49 Copy to clipboard
2024-04-25 04:50PM Shade	258 by 34 Copy to clipboard
2024-04-25 06:20PM Shade	273 by 17 Copy to clipboard

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