Arizona Avalanche Map

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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: San Francisco Peaks / Kachina Peaks Wilderness

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San Francisco Peaks / Kachina Peaks Wilderness

Pre-populated CalTopo Map

Avalanche Report

2023-03-21 Avalanche Danger

• Moderate danger (above 11501')
• Moderate danger (9701' to 11500')
• Low danger (below 9700')

a0-0e11501-20310f fff200
a0-0e9701-11500f fff200
a0-0e0-9700f 50b848

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2023-03-21 Wind Slab

• NW to SE aspects (above 11501')
• NW to SE aspects (9701' to 11500')

a293-158e11501-20310f A200FF
a293-158e9701-11500f A200FF

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2023-03-21 Persistent Slab

• All aspects (above 11501')
• All aspects (9701' to 11500')

a23-23e11501-20310f 0000FF
a23-23e9701-11500f 0000FF

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Issued at: Monday, March 20, 2023 6:40AM
Issued by: KPAC

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-03-21 06:40AM Shade	91 by 1 Copy to clipboard
2023-03-21 08:10AM Shade	104 by 20 Copy to clipboard
2023-03-21 09:40AM Shade	121 by 37 Copy to clipboard
2023-03-21 11:10AM Shade	146 by 50 Copy to clipboard
2023-03-21 12:40PM Shade	183 by 55 Copy to clipboard
2023-03-21 02:10PM Shade	218 by 48 Copy to clipboard
2023-03-21 03:40PM Shade	242 by 34 Copy to clipboard
2023-03-21 05:10PM Shade	258 by 17 Copy to clipboard

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