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: Thursday, May 09, 2024 6:20PM
Issued by: BTAC

Tetons
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Thursday, May 09, 2024 6:20PM
Issued by: BTAC

Togwotee Pass
Avalanche Report

Report not available. See BTAC for more information.

Issued at: Thursday, May 09, 2024 6:20PM
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)
2024-05-10 06:20AM Shade	67 by 2 Copy to clipboard
2024-05-10 07:50AM Shade	82 by 18 Copy to clipboard
2024-05-10 09:20AM Shade	97 by 34 Copy to clipboard
2024-05-10 10:50AM Shade	117 by 50 Copy to clipboard
2024-05-10 12:20PM Shade	149 by 62 Copy to clipboard
2024-05-10 01:50PM Shade	197 by 64 Copy to clipboard
2024-05-10 03:20PM Shade	235 by 54 Copy to clipboard
2024-05-10 04:50PM Shade	258 by 39 Copy to clipboard
2024-05-10 06:20PM Shade	274 by 23 Copy to clipboard
2024-05-10 07:50PM Shade	288 by 7 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-10 06:20AM Shade	67 by 2 Copy to clipboard
2024-05-10 07:50AM Shade	82 by 18 Copy to clipboard
2024-05-10 09:20AM Shade	98 by 34 Copy to clipboard
2024-05-10 10:50AM Shade	118 by 49 Copy to clipboard
2024-05-10 12:20PM Shade	149 by 61 Copy to clipboard
2024-05-10 01:50PM Shade	196 by 63 Copy to clipboard
2024-05-10 03:20PM Shade	234 by 54 Copy to clipboard
2024-05-10 04:50PM Shade	257 by 39 Copy to clipboard
2024-05-10 06:20PM Shade	273 by 23 Copy to clipboard
2024-05-10 07:50PM Shade	288 by 7 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-10 06:10AM Shade	66 by 1 Copy to clipboard
2024-05-10 07:40AM Shade	81 by 16 Copy to clipboard
2024-05-10 09:10AM Shade	96 by 33 Copy to clipboard
2024-05-10 10:40AM Shade	116 by 48 Copy to clipboard
2024-05-10 12:10PM Shade	146 by 60 Copy to clipboard
2024-05-10 01:40PM Shade	192 by 64 Copy to clipboard
2024-05-10 03:10PM Shade	231 by 55 Copy to clipboard
2024-05-10 04:40PM Shade	255 by 40 Copy to clipboard
2024-05-10 06:10PM Shade	272 by 24 Copy to clipboard
2024-05-10 07:40PM Shade	287 by 8 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-13 06:00AM Shade	65 by 2 Copy to clipboard
2024-05-13 07:30AM Shade	81 by 17 Copy to clipboard
2024-05-13 09:00AM Shade	96 by 33 Copy to clipboard
2024-05-13 10:30AM Shade	116 by 49 Copy to clipboard
2024-05-13 12:00PM Shade	147 by 61 Copy to clipboard
2024-05-13 01:30PM Shade	193 by 64 Copy to clipboard
2024-05-13 03:00PM Shade	232 by 55 Copy to clipboard
2024-05-13 04:30PM Shade	256 by 41 Copy to clipboard
2024-05-13 06:00PM Shade	273 by 25 Copy to clipboard
2024-05-13 07:30PM Shade	288 by 9 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-13 06:00AM Shade	66 by 1 Copy to clipboard
2024-05-13 07:30AM Shade	80 by 17 Copy to clipboard
2024-05-13 09:00AM Shade	94 by 34 Copy to clipboard
2024-05-13 10:30AM Shade	113 by 50 Copy to clipboard
2024-05-13 12:00PM Shade	144 by 63 Copy to clipboard
2024-05-13 01:30PM Shade	195 by 67 Copy to clipboard
2024-05-13 03:00PM Shade	236 by 57 Copy to clipboard
2024-05-13 04:30PM Shade	258 by 41 Copy to clipboard
2024-05-13 06:00PM Shade	274 by 24 Copy to clipboard
2024-05-13 07:30PM Shade	288 by 8 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-13 06:00AM Shade	66 by 1 Copy to clipboard
2024-05-13 07:30AM Shade	80 by 17 Copy to clipboard
2024-05-13 09:00AM Shade	95 by 34 Copy to clipboard
2024-05-13 10:30AM Shade	114 by 51 Copy to clipboard
2024-05-13 12:00PM Shade	145 by 64 Copy to clipboard
2024-05-13 01:30PM Shade	197 by 67 Copy to clipboard
2024-05-13 03:00PM Shade	237 by 56 Copy to clipboard
2024-05-13 04:30PM Shade	259 by 40 Copy to clipboard
2024-05-13 06:00PM Shade	275 by 24 Copy to clipboard
2024-05-13 07:30PM Shade	289 by 7 Copy to clipboard

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