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: Friday, May 03, 2024 7:00AM
Issued by: BTAC

Tetons
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Friday, May 03, 2024 7:00AM
Issued by: BTAC

Togwotee Pass
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Friday, May 03, 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)
2024-05-04 06:30AM Shade	70 by 2 Copy to clipboard
2024-05-04 08:00AM Shade	85 by 18 Copy to clipboard
2024-05-04 09:30AM Shade	100 by 35 Copy to clipboard
2024-05-04 11:00AM Shade	121 by 50 Copy to clipboard
2024-05-04 12:30PM Shade	154 by 61 Copy to clipboard
2024-05-04 02:00PM Shade	201 by 62 Copy to clipboard
2024-05-04 03:30PM Shade	236 by 52 Copy to clipboard
2024-05-04 05:00PM Shade	258 by 36 Copy to clipboard
2024-05-04 06:30PM Shade	274 by 20 Copy to clipboard
2024-05-04 08:00PM Shade	289 by 4 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-04 06:20AM Shade	68 by 1 Copy to clipboard
2024-05-04 07:50AM Shade	83 by 16 Copy to clipboard
2024-05-04 09:20AM Shade	99 by 33 Copy to clipboard
2024-05-04 10:50AM Shade	119 by 48 Copy to clipboard
2024-05-04 12:20PM Shade	151 by 60 Copy to clipboard
2024-05-04 01:50PM Shade	195 by 62 Copy to clipboard
2024-05-04 03:20PM Shade	232 by 53 Copy to clipboard
2024-05-04 04:50PM Shade	255 by 38 Copy to clipboard
2024-05-04 06:20PM Shade	272 by 22 Copy to clipboard
2024-05-04 07:50PM Shade	287 by 6 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-04 06:20AM Shade	69 by 1 Copy to clipboard
2024-05-04 07:50AM Shade	84 by 17 Copy to clipboard
2024-05-04 09:20AM Shade	99 by 33 Copy to clipboard
2024-05-04 10:50AM Shade	120 by 48 Copy to clipboard
2024-05-04 12:20PM Shade	152 by 60 Copy to clipboard
2024-05-04 01:50PM Shade	197 by 62 Copy to clipboard
2024-05-04 03:20PM Shade	233 by 52 Copy to clipboard
2024-05-04 04:50PM Shade	256 by 38 Copy to clipboard
2024-05-04 06:20PM Shade	272 by 21 Copy to clipboard
2024-05-04 07:50PM Shade	287 by 6 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-05 06:10AM Shade	69 by 2 Copy to clipboard
2024-05-05 07:40AM Shade	84 by 17 Copy to clipboard
2024-05-05 09:10AM Shade	100 by 33 Copy to clipboard
2024-05-05 10:40AM Shade	121 by 48 Copy to clipboard
2024-05-05 12:10PM Shade	153 by 60 Copy to clipboard
2024-05-05 01:40PM Shade	197 by 61 Copy to clipboard
2024-05-05 03:10PM Shade	233 by 52 Copy to clipboard
2024-05-05 04:40PM Shade	256 by 37 Copy to clipboard
2024-05-05 06:10PM Shade	273 by 21 Copy to clipboard
2024-05-05 07:40PM Shade	288 by 6 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-05 06:10AM Shade	69 by 1 Copy to clipboard
2024-05-05 07:40AM Shade	83 by 17 Copy to clipboard
2024-05-05 09:10AM Shade	98 by 34 Copy to clipboard
2024-05-05 10:40AM Shade	118 by 50 Copy to clipboard
2024-05-05 12:10PM Shade	150 by 63 Copy to clipboard
2024-05-05 01:40PM Shade	199 by 64 Copy to clipboard
2024-05-05 03:10PM Shade	237 by 54 Copy to clipboard
2024-05-05 04:40PM Shade	258 by 38 Copy to clipboard
2024-05-05 06:10PM Shade	274 by 21 Copy to clipboard
2024-05-05 07:40PM Shade	288 by 5 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-05 06:10AM Shade	69 by 1 Copy to clipboard
2024-05-05 07:40AM Shade	83 by 18 Copy to clipboard
2024-05-05 09:10AM Shade	99 by 35 Copy to clipboard
2024-05-05 10:40AM Shade	118 by 51 Copy to clipboard
2024-05-05 12:10PM Shade	152 by 63 Copy to clipboard
2024-05-05 01:40PM Shade	201 by 64 Copy to clipboard
2024-05-05 03:10PM Shade	238 by 53 Copy to clipboard
2024-05-05 04:40PM Shade	259 by 37 Copy to clipboard
2024-05-05 06:10PM Shade	274 by 21 Copy to clipboard
2024-05-05 07:40PM Shade	289 by 4 Copy to clipboard

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