Utah 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: Abajos Logan Moab Ogden Provo Salt Lake Skyline Southwest Uintas

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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

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

Download Zone Shape

Download Zone Shape

Download Zone Shape

Abajos
Avalanche Report

Report not available. See UAC for more information.

Issued at: Monday, April 15, 2024 8:12AM
Issued by: UAC

Logan
Avalanche Report

Report not available. See UAC for more information.

Issued at: Monday, April 15, 2024 4:09PM
Issued by: UAC

Moab
Avalanche Report

Report not available. See UAC for more information.

Issued at: Wednesday, May 01, 2024 12:03PM
Issued by: UAC

Ogden
Avalanche Report

Report not available. See UAC for more information.

Issued at: Wednesday, May 01, 2024 7:39AM
Issued by: UAC

Provo
Avalanche Report

Report not available. See UAC for more information.

Issued at: Wednesday, May 01, 2024 7:39AM
Issued by: UAC

Salt Lake
Avalanche Report

Report not available. See UAC for more information.

Issued at: Wednesday, May 01, 2024 7:38AM
Issued by: UAC

Skyline
Avalanche Report

Report not available. See UAC for more information.

Issued at: Monday, April 15, 2024 6:45AM
Issued by: UAC

Southwest
Avalanche Report

Report not available. See UAC for more information.

Issued at: Friday, February 09, 2024 7:14AM
Issued by: UAC

Uintas
Avalanche Report

Report not available. See UAC for more information.

Issued at: Monday, April 15, 2024 5:32AM
Issued by: UAC

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-16 06:50AM Shade	77 by 1 Copy to clipboard
2024-04-16 08:20AM Shade	91 by 19 Copy to clipboard
2024-04-16 09:50AM Shade	106 by 36 Copy to clipboard
2024-04-16 11:20AM Shade	128 by 52 Copy to clipboard
2024-04-16 12:50PM Shade	165 by 62 Copy to clipboard
2024-04-16 02:20PM Shade	211 by 59 Copy to clipboard
2024-04-16 03:50PM Shade	241 by 46 Copy to clipboard
2024-04-16 05:20PM Shade	260 by 30 Copy to clipboard
2024-04-16 06:50PM Shade	274 by 12 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-16 07:00AM Shade	78 by 2 Copy to clipboard
2024-04-16 08:30AM Shade	93 by 19 Copy to clipboard
2024-04-16 10:00AM Shade	110 by 35 Copy to clipboard
2024-04-16 11:30AM Shade	133 by 50 Copy to clipboard
2024-04-16 01:00PM Shade	168 by 58 Copy to clipboard
2024-04-16 02:30PM Shade	209 by 56 Copy to clipboard
2024-04-16 04:00PM Shade	238 by 44 Copy to clipboard
2024-04-16 05:30PM Shade	258 by 29 Copy to clipboard
2024-04-16 07:00PM Shade	274 by 12 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-02 06:30AM Shade	71 by 1 Copy to clipboard
2024-05-02 08:00AM Shade	85 by 19 Copy to clipboard
2024-05-02 09:30AM Shade	99 by 36 Copy to clipboard
2024-05-02 11:00AM Shade	119 by 53 Copy to clipboard
2024-05-02 12:30PM Shade	154 by 65 Copy to clipboard
2024-05-02 02:00PM Shade	207 by 65 Copy to clipboard
2024-05-02 03:30PM Shade	242 by 52 Copy to clipboard
2024-05-02 05:00PM Shade	262 by 36 Copy to clipboard
2024-05-02 06:30PM Shade	276 by 18 Copy to clipboard
2024-05-02 08:00PM Shade	289 by 1 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-02 06:30AM Shade	70 by 1 Copy to clipboard
2024-05-02 08:00AM Shade	84 by 17 Copy to clipboard
2024-05-02 09:30AM Shade	99 by 34 Copy to clipboard
2024-05-02 11:00AM Shade	119 by 50 Copy to clipboard
2024-05-02 12:30PM Shade	152 by 62 Copy to clipboard
2024-05-02 02:00PM Shade	200 by 63 Copy to clipboard
2024-05-02 03:30PM Shade	236 by 53 Copy to clipboard
2024-05-02 05:00PM Shade	258 by 37 Copy to clipboard
2024-05-02 06:30PM Shade	273 by 20 Copy to clipboard
2024-05-02 08:00PM Shade	288 by 4 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-02 06:40AM Shade	71 by 2 Copy to clipboard
2024-05-02 08:10AM Shade	85 by 19 Copy to clipboard
2024-05-02 09:40AM Shade	100 by 36 Copy to clipboard
2024-05-02 11:10AM Shade	121 by 52 Copy to clipboard
2024-05-02 12:40PM Shade	156 by 64 Copy to clipboard
2024-05-02 02:10PM Shade	206 by 63 Copy to clipboard
2024-05-02 03:40PM Shade	240 by 51 Copy to clipboard
2024-05-02 05:10PM Shade	260 by 35 Copy to clipboard
2024-05-02 06:40PM Shade	275 by 18 Copy to clipboard
2024-05-02 08:10PM Shade	290 by 2 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-02 06:40AM Shade	71 by 2 Copy to clipboard
2024-05-02 08:10AM Shade	85 by 19 Copy to clipboard
2024-05-02 09:40AM Shade	101 by 36 Copy to clipboard
2024-05-02 11:10AM Shade	121 by 52 Copy to clipboard
2024-05-02 12:40PM Shade	156 by 63 Copy to clipboard
2024-05-02 02:10PM Shade	205 by 63 Copy to clipboard
2024-05-02 03:40PM Shade	240 by 51 Copy to clipboard
2024-05-02 05:10PM Shade	260 by 35 Copy to clipboard
2024-05-02 06:40PM Shade	275 by 18 Copy to clipboard
2024-05-02 08:10PM Shade	289 by 2 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-16 07:00AM Shade	78 by 2 Copy to clipboard
2024-04-16 08:30AM Shade	92 by 19 Copy to clipboard
2024-04-16 10:00AM Shade	108 by 36 Copy to clipboard
2024-04-16 11:30AM Shade	131 by 51 Copy to clipboard
2024-04-16 01:00PM Shade	167 by 61 Copy to clipboard
2024-04-16 02:30PM Shade	211 by 58 Copy to clipboard
2024-04-16 04:00PM Shade	241 by 45 Copy to clipboard
2024-04-16 05:30PM Shade	260 by 29 Copy to clipboard
2024-04-16 07:00PM Shade	274 by 11 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-02-10 07:40AM Shade	110 by 2 Copy to clipboard
2024-02-10 09:10AM Shade	126 by 18 Copy to clipboard
2024-02-10 10:40AM Shade	146 by 30 Copy to clipboard
2024-02-10 12:10PM Shade	171 by 37 Copy to clipboard
2024-02-10 01:40PM Shade	198 by 35 Copy to clipboard
2024-02-10 03:10PM Shade	221 by 27 Copy to clipboard
2024-02-10 04:40PM Shade	239 by 13 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-16 07:00AM Shade	78 by 2 Copy to clipboard
2024-04-16 08:30AM Shade	93 by 19 Copy to clipboard
2024-04-16 10:00AM Shade	109 by 36 Copy to clipboard
2024-04-16 11:30AM Shade	132 by 51 Copy to clipboard
2024-04-16 01:00PM Shade	168 by 59 Copy to clipboard
2024-04-16 02:30PM Shade	211 by 57 Copy to clipboard
2024-04-16 04:00PM Shade	240 by 44 Copy to clipboard
2024-04-16 05:30PM Shade	259 by 28 Copy to clipboard
2024-04-16 07:00PM Shade	274 by 11 Copy to clipboard

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