Washington 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

Select A Zone:

East Slopes Central
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

East Slopes North
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

East Slopes South
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

Olympics
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

Snoqualmie Pass
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

Stevens Pass
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

West Slopes Central
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

West Slopes North
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC

West Slopes South
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, April 30, 2023 6:27PM
Issued by: NWAC


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:00AM Shade 69 by 1
2023-05-01 07:30AM Shade 85 by 16
2023-05-01 09:00AM Shade 102 by 31
2023-05-01 10:30AM Shade 124 by 45
2023-05-01 12:00PM Shade 154 by 55
2023-05-01 01:30PM Shade 193 by 57
2023-05-01 03:00PM Shade 228 by 49
2023-05-01 04:30PM Shade 251 by 36
2023-05-01 06:00PM Shade 270 by 21
2023-05-01 07:30PM Shade 286 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:00AM Shade 69 by 2
2023-05-01 07:30AM Shade 86 by 16
2023-05-01 09:00AM Shade 103 by 31
2023-05-01 10:30AM Shade 125 by 45
2023-05-01 12:00PM Shade 155 by 55
2023-05-01 01:30PM Shade 194 by 56
2023-05-01 03:00PM Shade 227 by 48
2023-05-01 04:30PM Shade 251 by 36
2023-05-01 06:00PM Shade 269 by 21
2023-05-01 07:30PM Shade 286 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:00AM Shade 69 by 1
2023-05-01 07:30AM Shade 84 by 16
2023-05-01 09:00AM Shade 101 by 31
2023-05-01 10:30AM Shade 122 by 45
2023-05-01 12:00PM Shade 153 by 56
2023-05-01 01:30PM Shade 193 by 58
2023-05-01 03:00PM Shade 228 by 50
2023-05-01 04:30PM Shade 252 by 37
2023-05-01 06:00PM Shade 270 by 22
2023-05-01 07:30PM Shade 286 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:10AM Shade 69 by 1
2023-05-01 07:40AM Shade 85 by 16
2023-05-01 09:10AM Shade 102 by 31
2023-05-01 10:40AM Shade 123 by 45
2023-05-01 12:10PM Shade 154 by 55
2023-05-01 01:40PM Shade 193 by 57
2023-05-01 03:10PM Shade 227 by 49
2023-05-01 04:40PM Shade 251 by 36
2023-05-01 06:10PM Shade 269 by 21
2023-05-01 07:40PM Shade 286 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:00AM Shade 68 by 1
2023-05-01 07:30AM Shade 84 by 16
2023-05-01 09:00AM Shade 101 by 31
2023-05-01 10:30AM Shade 123 by 45
2023-05-01 12:00PM Shade 153 by 55
2023-05-01 01:30PM Shade 192 by 57
2023-05-01 03:00PM Shade 227 by 50
2023-05-01 04:30PM Shade 251 by 37
2023-05-01 06:00PM Shade 269 by 22
2023-05-01 07:30PM Shade 285 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:00AM Shade 69 by 1
2023-05-01 07:30AM Shade 85 by 16
2023-05-01 09:00AM Shade 102 by 31
2023-05-01 10:30AM Shade 123 by 45
2023-05-01 12:00PM Shade 153 by 55
2023-05-01 01:30PM Shade 193 by 57
2023-05-01 03:00PM Shade 227 by 49
2023-05-01 04:30PM Shade 251 by 36
2023-05-01 06:00PM Shade 269 by 21
2023-05-01 07:30PM Shade 286 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:00AM Shade 68 by 1
2023-05-01 07:30AM Shade 85 by 16
2023-05-01 09:00AM Shade 102 by 31
2023-05-01 10:30AM Shade 123 by 45
2023-05-01 12:00PM Shade 153 by 55
2023-05-01 01:30PM Shade 192 by 57
2023-05-01 03:00PM Shade 226 by 49
2023-05-01 04:30PM Shade 251 by 36
2023-05-01 06:00PM Shade 269 by 22
2023-05-01 07:30PM Shade 285 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:00AM Shade 68 by 1
2023-05-01 07:30AM Shade 85 by 16
2023-05-01 09:00AM Shade 102 by 30
2023-05-01 10:30AM Shade 124 by 44
2023-05-01 12:00PM Shade 153 by 54
2023-05-01 01:30PM Shade 192 by 56
2023-05-01 03:00PM Shade 226 by 49
2023-05-01 04:30PM Shade 250 by 36
2023-05-01 06:00PM Shade 269 by 22
2023-05-01 07:30PM Shade 285 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-01 06:10AM Shade 70 by 2
2023-05-01 07:40AM Shade 86 by 17
2023-05-01 09:10AM Shade 103 by 32
2023-05-01 10:40AM Shade 124 by 47
2023-05-01 12:10PM Shade 156 by 57
2023-05-01 01:40PM Shade 196 by 58
2023-05-01 03:10PM Shade 230 by 49
2023-05-01 04:40PM Shade 254 by 36
2023-05-01 06:10PM Shade 271 by 20
2023-05-01 07:40PM Shade 287 by 5

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