Oregon Avalanche Map Layers

---

"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.

---

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.

---

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: Central Cascades Newberry Mt Hood Southern Oregon Blues Elkhorns Northern Wallowas Southern Wallowas

Copy to clipboard

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

Central Cascades
Avalanche Report

Report not available. See COAA for more information.

Issued at: Tuesday, April 30, 2024 8:17PM
Issued by: COAA

Newberry
Avalanche Report

Report not available. See COAA for more information.

Issued at: Sunday, December 03, 2023 8:23AM
Issued by: COAA

Mt Hood
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 14, 2024 6:30PM
Issued by: NWAC

Southern Oregon
Avalanche Report

Report not available. See SOAIX for more information.

Blues
Avalanche Report

Report not available. See WAC for more information.

Issued at: Monday, April 08, 2024 6:46AM
Issued by: WAC

Elkhorns
Avalanche Report

Report not available. See WAC for more information.

Issued at: Monday, April 08, 2024 6:46AM
Issued by: WAC

Northern Wallowas
Avalanche Report

Report not available. See WAC for more information.

Issued at: Monday, April 08, 2024 6:46AM
Issued by: WAC

Southern Wallowas
Avalanche Report

Report not available. See WAC for more information.

Issued at: Monday, April 08, 2024 6:46AM
Issued by: WAC

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-01 06:10AM Shade	70 by 1 Copy to clipboard
2024-05-01 07:40AM Shade	85 by 17 Copy to clipboard
2024-05-01 09:10AM Shade	101 by 33 Copy to clipboard
2024-05-01 10:40AM Shade	122 by 48 Copy to clipboard
2024-05-01 12:10PM Shade	154 by 59 Copy to clipboard
2024-05-01 01:40PM Shade	198 by 60 Copy to clipboard
2024-05-01 03:10PM Shade	233 by 51 Copy to clipboard
2024-05-01 04:40PM Shade	255 by 36 Copy to clipboard
2024-05-01 06:10PM Shade	272 by 20 Copy to clipboard
2024-05-01 07:40PM Shade	287 by 4 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2023-12-04 07:40AM Shade	124 by 2 Copy to clipboard
2023-12-04 09:10AM Shade	141 by 14 Copy to clipboard
2023-12-04 10:40AM Shade	161 by 22 Copy to clipboard
2023-12-04 12:10PM Shade	184 by 24 Copy to clipboard
2023-12-04 01:40PM Shade	206 by 20 Copy to clipboard
2023-12-04 03:10PM Shade	225 by 10 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-15 06:30AM Shade	76 by 1 Copy to clipboard
2024-04-15 08:00AM Shade	92 by 17 Copy to clipboard
2024-04-15 09:30AM Shade	110 by 32 Copy to clipboard
2024-04-15 11:00AM Shade	132 by 46 Copy to clipboard
2024-04-15 12:30PM Shade	165 by 54 Copy to clipboard
2024-04-15 02:00PM Shade	202 by 53 Copy to clipboard
2024-04-15 03:30PM Shade	232 by 43 Copy to clipboard
2024-04-15 05:00PM Shade	254 by 29 Copy to clipboard
2024-04-15 06:30PM Shade	271 by 14 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-05-03 06:10AM Shade	69 by 1 Copy to clipboard
2024-05-03 07:40AM Shade	84 by 17 Copy to clipboard
2024-05-03 09:10AM Shade	99 by 34 Copy to clipboard
2024-05-03 10:40AM Shade	120 by 49 Copy to clipboard
2024-05-03 12:10PM Shade	152 by 61 Copy to clipboard
2024-05-03 01:40PM Shade	198 by 62 Copy to clipboard
2024-05-03 03:10PM Shade	234 by 52 Copy to clipboard
2024-05-03 04:40PM Shade	257 by 37 Copy to clipboard
2024-05-03 06:10PM Shade	273 by 21 Copy to clipboard
2024-05-03 07:40PM Shade	288 by 5 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-09 06:30AM Shade	80 by 2 Copy to clipboard
2024-04-09 08:00AM Shade	96 by 17 Copy to clipboard
2024-04-09 09:30AM Shade	115 by 32 Copy to clipboard
2024-04-09 11:00AM Shade	138 by 45 Copy to clipboard
2024-04-09 12:30PM Shade	171 by 52 Copy to clipboard
2024-04-09 02:00PM Shade	206 by 50 Copy to clipboard
2024-04-09 03:30PM Shade	234 by 40 Copy to clipboard
2024-04-09 05:00PM Shade	255 by 25 Copy to clipboard
2024-04-09 06:30PM Shade	271 by 10 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-09 06:30AM Shade	80 by 1 Copy to clipboard
2024-04-09 08:00AM Shade	96 by 17 Copy to clipboard
2024-04-09 09:30AM Shade	114 by 33 Copy to clipboard
2024-04-09 11:00AM Shade	138 by 46 Copy to clipboard
2024-04-09 12:30PM Shade	170 by 53 Copy to clipboard
2024-04-09 02:00PM Shade	206 by 50 Copy to clipboard
2024-04-09 03:30PM Shade	235 by 40 Copy to clipboard
2024-04-09 05:00PM Shade	255 by 26 Copy to clipboard
2024-04-09 06:30PM Shade	272 by 10 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-09 06:30AM Shade	81 by 2 Copy to clipboard
2024-04-09 08:00AM Shade	97 by 18 Copy to clipboard
2024-04-09 09:30AM Shade	115 by 33 Copy to clipboard
2024-04-09 11:00AM Shade	139 by 46 Copy to clipboard
2024-04-09 12:30PM Shade	171 by 52 Copy to clipboard
2024-04-09 02:00PM Shade	207 by 50 Copy to clipboard
2024-04-09 03:30PM Shade	235 by 39 Copy to clipboard
2024-04-09 05:00PM Shade	255 by 25 Copy to clipboard
2024-04-09 06:30PM Shade	272 by 9 Copy to clipboard

Sunlight Angles

Time of day	Lighting (Az/Z)
2024-04-09 06:30AM Shade	81 by 2 Copy to clipboard
2024-04-09 08:00AM Shade	97 by 18 Copy to clipboard
2024-04-09 09:30AM Shade	115 by 33 Copy to clipboard
2024-04-09 11:00AM Shade	139 by 46 Copy to clipboard
2024-04-09 12:30PM Shade	172 by 53 Copy to clipboard
2024-04-09 02:00PM Shade	207 by 50 Copy to clipboard
2024-04-09 03:30PM Shade	235 by 39 Copy to clipboard
2024-04-09 05:00PM Shade	256 by 25 Copy to clipboard
2024-04-09 06:30PM Shade	272 by 9 Copy to clipboard

---

Change Regions: California Wyoming Oregon Alaska Montana Idaho Arizona New Hampshire Washington New Mexico Utah Colorado Canada

If you enjoyed this or found it helpful, please consider buying an espresso to keep the flow going.

Show Known Issues