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

Abajos
Avalanche Report

Report not available. See UAC for more information.

Issued at: Monday, April 17, 2023 7:40AM
Issued by: UAC

Logan
Avalanche Report

Report not available. See UAC for more information.

Issued at: Monday, April 24, 2023 7:28AM
Issued by: UAC

Moab
Avalanche Report

Report not available. See UAC for more information.

Issued at: Monday, May 01, 2023 6:17AM
Issued by: UAC

Ogden
Avalanche Report

Report not available. See UAC for more information.

Issued at: Tuesday, May 02, 2023 6:04AM
Issued by: UAC

Provo
Avalanche Report

Report not available. See UAC for more information.

Issued at: Tuesday, May 02, 2023 6:04AM
Issued by: UAC

Salt Lake
Avalanche Report

Report not available. See UAC for more information.

Issued at: Tuesday, May 02, 2023 5:42AM
Issued by: UAC

Skyline
Avalanche Report

Report not available. See UAC for more information.

Issued at: Monday, April 17, 2023 6:57AM
Issued by: UAC

Southwest
Avalanche Report

Report not available. See UAC for more information.

Issued at: Tuesday, January 03, 2023 6:18AM
Issued by: UAC

Uintas
Avalanche Report

Report not available. See UAC for more information.

Issued at: Wednesday, April 26, 2023 6:00AM
Issued by: UAC

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-18 06:50AM Shade	77 by 1 Copy to clipboard
2023-04-18 08:20AM Shade	91 by 19 Copy to clipboard
2023-04-18 09:50AM Shade	106 by 36 Copy to clipboard
2023-04-18 11:20AM Shade	128 by 52 Copy to clipboard
2023-04-18 12:50PM Shade	165 by 62 Copy to clipboard
2023-04-18 02:20PM Shade	211 by 60 Copy to clipboard
2023-04-18 03:50PM Shade	242 by 47 Copy to clipboard
2023-04-18 05:20PM Shade	260 by 30 Copy to clipboard
2023-04-18 06:50PM Shade	275 by 12 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-25 06:40AM Shade	73 by 1 Copy to clipboard
2023-04-25 08:10AM Shade	87 by 17 Copy to clipboard
2023-04-25 09:40AM Shade	103 by 34 Copy to clipboard
2023-04-25 11:10AM Shade	124 by 49 Copy to clipboard
2023-04-25 12:40PM Shade	158 by 60 Copy to clipboard
2023-04-25 02:10PM Shade	202 by 60 Copy to clipboard
2023-04-25 03:40PM Shade	236 by 49 Copy to clipboard
2023-04-25 05:10PM Shade	257 by 34 Copy to clipboard
2023-04-25 06:40PM Shade	273 by 17 Copy to clipboard
2023-04-25 08:10PM Shade	287 by 1 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-05-02 06:30AM Shade	71 by 1 Copy to clipboard
2023-05-02 08:00AM Shade	85 by 18 Copy to clipboard
2023-05-02 09:30AM Shade	99 by 36 Copy to clipboard
2023-05-02 11:00AM Shade	119 by 53 Copy to clipboard
2023-05-02 12:30PM Shade	154 by 65 Copy to clipboard
2023-05-02 02:00PM Shade	207 by 65 Copy to clipboard
2023-05-02 03:30PM Shade	242 by 52 Copy to clipboard
2023-05-02 05:00PM Shade	261 by 36 Copy to clipboard
2023-05-02 06:30PM Shade	276 by 18 Copy to clipboard
2023-05-02 08:00PM Shade	289 by 1 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-05-03 06:30AM Shade	69 by 1 Copy to clipboard
2023-05-03 08:00AM Shade	84 by 17 Copy to clipboard
2023-05-03 09:30AM Shade	99 by 34 Copy to clipboard
2023-05-03 11:00AM Shade	119 by 50 Copy to clipboard
2023-05-03 12:30PM Shade	152 by 62 Copy to clipboard
2023-05-03 02:00PM Shade	200 by 63 Copy to clipboard
2023-05-03 03:30PM Shade	236 by 53 Copy to clipboard
2023-05-03 05:00PM Shade	258 by 37 Copy to clipboard
2023-05-03 06:30PM Shade	274 by 20 Copy to clipboard
2023-05-03 08:00PM Shade	288 by 4 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-05-03 06:40AM Shade	71 by 2 Copy to clipboard
2023-05-03 08:10AM Shade	85 by 19 Copy to clipboard
2023-05-03 09:40AM Shade	100 by 36 Copy to clipboard
2023-05-03 11:10AM Shade	121 by 52 Copy to clipboard
2023-05-03 12:40PM Shade	156 by 64 Copy to clipboard
2023-05-03 02:10PM Shade	206 by 63 Copy to clipboard
2023-05-03 03:40PM Shade	240 by 52 Copy to clipboard
2023-05-03 05:10PM Shade	261 by 35 Copy to clipboard
2023-05-03 06:40PM Shade	276 by 18 Copy to clipboard
2023-05-03 08:10PM Shade	290 by 2 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-05-03 06:40AM Shade	71 by 2 Copy to clipboard
2023-05-03 08:10AM Shade	85 by 19 Copy to clipboard
2023-05-03 09:40AM Shade	100 by 36 Copy to clipboard
2023-05-03 11:10AM Shade	121 by 52 Copy to clipboard
2023-05-03 12:40PM Shade	156 by 63 Copy to clipboard
2023-05-03 02:10PM Shade	205 by 63 Copy to clipboard
2023-05-03 03:40PM Shade	240 by 51 Copy to clipboard
2023-05-03 05:10PM Shade	260 by 35 Copy to clipboard
2023-05-03 06:40PM Shade	275 by 18 Copy to clipboard
2023-05-03 08:10PM Shade	289 by 2 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-18 07:00AM Shade	78 by 2 Copy to clipboard
2023-04-18 08:30AM Shade	92 by 19 Copy to clipboard
2023-04-18 10:00AM Shade	108 by 37 Copy to clipboard
2023-04-18 11:30AM Shade	130 by 52 Copy to clipboard
2023-04-18 01:00PM Shade	167 by 61 Copy to clipboard
2023-04-18 02:30PM Shade	212 by 58 Copy to clipboard
2023-04-18 04:00PM Shade	241 by 45 Copy to clipboard
2023-04-18 05:30PM Shade	260 by 29 Copy to clipboard
2023-04-18 07:00PM Shade	275 by 12 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-01-04 08:00AM Shade	121 by 2 Copy to clipboard
2023-01-04 09:30AM Shade	137 by 15 Copy to clipboard
2023-01-04 11:00AM Shade	157 by 25 Copy to clipboard
2023-01-04 12:30PM Shade	180 by 29 Copy to clipboard
2023-01-04 02:00PM Shade	203 by 25 Copy to clipboard
2023-01-04 03:30PM Shade	222 by 16 Copy to clipboard
2023-01-04 05:00PM Shade	238 by 2 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-04-27 06:40AM Shade	73 by 1 Copy to clipboard
2023-04-27 08:10AM Shade	87 by 18 Copy to clipboard
2023-04-27 09:40AM Shade	102 by 35 Copy to clipboard
2023-04-27 11:10AM Shade	123 by 51 Copy to clipboard
2023-04-27 12:40PM Shade	158 by 62 Copy to clipboard
2023-04-27 02:10PM Shade	205 by 61 Copy to clipboard
2023-04-27 03:40PM Shade	239 by 50 Copy to clipboard
2023-04-27 05:10PM Shade	259 by 34 Copy to clipboard
2023-04-27 06:40PM Shade	274 by 17 Copy to clipboard

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