Washington Avalanche Maps


"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

2023-04-02 Avalanche Danger
  • Moderate danger (above 4851')
  • Moderate danger (3901' to 4850')
  • Moderate danger (below 3900')
a0-0e4851-20310f fff200
a0-0e3901-4850f fff200
a0-0e0-3900f fff200
2023-04-02 Wind Slab
  • All aspects (above 4851')
  • All aspects (3901' to 4850')
a158-158e4851-20310f A200FF
a158-158e3901-4850f A200FF
2023-04-02 Wet Loose
  • E to W aspects (3901' to 4850')
  • E to W aspects (below 3900')
a68-293e3901-4850f 0000FF
a68-293e0-3900f 0000FF

Issued at: Saturday, April 01, 2023 6:30PM
Issued by: NWAC

East Slopes North
Avalanche Report

2023-04-02 Avalanche Danger
  • Moderate danger (above 4851')
  • Moderate danger (3901' to 4850')
  • Low danger (below 3900')
a0-0e4851-20310f fff200
a0-0e3901-4850f fff200
a0-0e0-3900f 50b848
2023-04-02 Wind Slab
  • All aspects (above 4851')
  • All aspects (3901' to 4850')
a158-158e4851-20310f A200FF
a158-158e3901-4850f A200FF

Issued at: Saturday, April 01, 2023 6:30PM
Issued by: NWAC

East Slopes South
Avalanche Report

2023-04-02 Avalanche Danger
  • Moderate danger (above 4851')
  • Moderate danger (3901' to 4850')
  • Moderate danger (below 3900')
a0-0e4851-20310f fff200
a0-0e3901-4850f fff200
a0-0e0-3900f fff200
2023-04-02 Wind Slab
  • All aspects (above 4851')
  • All aspects (3901' to 4850')
a158-158e4851-20310f A200FF
a158-158e3901-4850f A200FF
2023-04-02 Wet Loose
  • E to W aspects (3901' to 4850')
  • E to W aspects (below 3900')
a68-293e3901-4850f 0000FF
a68-293e0-3900f 0000FF

Issued at: Saturday, April 01, 2023 6:34PM
Issued by: NWAC

Olympics
Avalanche Report

Report not available. See NWAC for more information.

Issued at: Sunday, March 26, 2023 6:30PM
Issued by: NWAC

Snoqualmie Pass
Avalanche Report

2023-04-02 Avalanche Danger
  • Considerable danger (above 4851')
  • Considerable danger (3901' to 4850')
  • Moderate danger (below 3900')
a0-0e4851-20310f f7941e
a0-0e3901-4850f f7941e
a0-0e0-3900f fff200
2023-04-02 Storm Slab
  • All aspects (above 4851')
  • All aspects (3901' to 4850')
  • All aspects (below 3900')
a158-158e4851-20310f A200FF
a158-158e3901-4850f A200FF
a158-158e0-3900f A200FF

Issued at: Saturday, April 01, 2023 6:30PM
Issued by: NWAC

Stevens Pass
Avalanche Report

2023-04-02 Avalanche Danger
  • Moderate danger (above 4851')
  • Moderate danger (3901' to 4850')
  • Moderate danger (below 3900')
a0-0e4851-20310f fff200
a0-0e3901-4850f fff200
a0-0e0-3900f fff200
2023-04-02 Wind Slab
  • All aspects (above 4851')
  • All aspects (3901' to 4850')
  • All aspects (below 3900')
a158-158e4851-20310f A200FF
a339-339e3901-4850f A200FF
a158-158e0-3900f A200FF

Issued at: Saturday, April 01, 2023 6:30PM
Issued by: NWAC

West Slopes Central
Avalanche Report

2023-04-02 Avalanche Danger
  • Considerable danger (above 4851')
  • Considerable danger (3901' to 4850')
  • Moderate danger (below 3900')
a0-0e4851-20310f f7941e
a0-0e3901-4850f f7941e
a0-0e0-3900f fff200
2023-04-02 Storm Slab
  • All aspects (above 4851')
  • All aspects (3901' to 4850')
  • All aspects (below 3900')
a158-158e4851-20310f A200FF
a158-158e3901-4850f A200FF
a158-158e0-3900f A200FF

Issued at: Saturday, April 01, 2023 6:40PM
Issued by: NWAC

West Slopes North
Avalanche Report

2023-04-02 Avalanche Danger
  • Considerable danger (above 4851')
  • Moderate danger (3901' to 4850')
  • Moderate danger (below 3900')
a0-0e4851-20310f f7941e
a0-0e3901-4850f fff200
a0-0e0-3900f fff200
2023-04-02 Wind Slab
  • All aspects (above 4851')
  • All aspects (3901' to 4850')
  • All aspects (below 3900')
a158-158e4851-20310f A200FF
a158-158e3901-4850f A200FF
a158-158e0-3900f A200FF

Issued at: Saturday, April 01, 2023 6:30PM
Issued by: NWAC

West Slopes South
Avalanche Report

2023-04-02 Avalanche Danger
  • Considerable danger (above 4851')
  • Considerable danger (3901' to 4850')
  • Considerable danger (below 3900')
a0-0e4851-20310f f7941e
a0-0e3901-4850f f7941e
a0-0e0-3900f f7941e
2023-04-02 Storm Slab
  • All aspects (above 4851')
  • All aspects (3901' to 4850')
  • All aspects (below 3900')
a158-158e4851-20310f A200FF
a158-158e3901-4850f A200FF
a158-158e0-3900f A200FF

Issued at: Saturday, April 01, 2023 6:30PM
Issued by: NWAC


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 06:50AM Shade 84 by 1
2023-04-02 08:20AM Shade 100 by 16
2023-04-02 09:50AM Shade 119 by 30
2023-04-02 11:20AM Shade 143 by 42
2023-04-02 12:50PM Shade 174 by 47
2023-04-02 02:20PM Shade 206 by 45
2023-04-02 03:50PM Shade 233 by 35
2023-04-02 05:20PM Shade 253 by 21
2023-04-02 06:50PM Shade 270 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 06:50AM Shade 84 by 1
2023-04-02 08:20AM Shade 101 by 16
2023-04-02 09:50AM Shade 120 by 30
2023-04-02 11:20AM Shade 144 by 41
2023-04-02 12:50PM Shade 175 by 46
2023-04-02 02:20PM Shade 206 by 44
2023-04-02 03:50PM Shade 233 by 34
2023-04-02 05:20PM Shade 253 by 21
2023-04-02 06:50PM Shade 271 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 07:00AM Shade 85 by 2
2023-04-02 08:30AM Shade 102 by 18
2023-04-02 10:00AM Shade 121 by 32
2023-04-02 11:30AM Shade 145 by 43
2023-04-02 01:00PM Shade 177 by 48
2023-04-02 02:30PM Shade 209 by 45
2023-04-02 04:00PM Shade 235 by 34
2023-04-02 05:30PM Shade 255 by 20
2023-04-02 07:00PM Shade 272 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2023-03-27 07:20AM Shade 88 by 2
2023-03-27 08:50AM Shade 105 by 17
2023-03-27 10:20AM Shade 125 by 31
2023-03-27 11:50AM Shade 150 by 41
2023-03-27 01:20PM Shade 180 by 45
2023-03-27 02:50PM Shade 211 by 41
2023-03-27 04:20PM Shade 235 by 31
2023-03-27 05:50PM Shade 255 by 17
2023-03-27 07:20PM Shade 272 by 2


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 07:00AM Shade 85 by 2
2023-04-02 08:30AM Shade 102 by 17
2023-04-02 10:00AM Shade 121 by 31
2023-04-02 11:30AM Shade 145 by 43
2023-04-02 01:00PM Shade 177 by 48
2023-04-02 02:30PM Shade 209 by 44
2023-04-02 04:00PM Shade 235 by 34
2023-04-02 05:30PM Shade 255 by 20
2023-04-02 07:00PM Shade 272 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 06:50AM Shade 83 by 1
2023-04-02 08:20AM Shade 100 by 16
2023-04-02 09:50AM Shade 119 by 30
2023-04-02 11:20AM Shade 143 by 41
2023-04-02 12:50PM Shade 173 by 47
2023-04-02 02:20PM Shade 206 by 45
2023-04-02 03:50PM Shade 232 by 35
2023-04-02 05:20PM Shade 253 by 22
2023-04-02 06:50PM Shade 270 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 07:00AM Shade 85 by 2
2023-04-02 08:30AM Shade 102 by 17
2023-04-02 10:00AM Shade 121 by 31
2023-04-02 11:30AM Shade 146 by 42
2023-04-02 01:00PM Shade 177 by 47
2023-04-02 02:30PM Shade 208 by 44
2023-04-02 04:00PM Shade 234 by 34
2023-04-02 05:30PM Shade 255 by 20
2023-04-02 07:00PM Shade 272 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 06:50AM Shade 83 by 1
2023-04-02 08:20AM Shade 100 by 15
2023-04-02 09:50AM Shade 119 by 29
2023-04-02 11:20AM Shade 143 by 40
2023-04-02 12:50PM Shade 173 by 46
2023-04-02 02:20PM Shade 205 by 44
2023-04-02 03:50PM Shade 231 by 35
2023-04-02 05:20PM Shade 252 by 22
2023-04-02 06:50PM Shade 270 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 07:00AM Shade 85 by 2
2023-04-02 08:30AM Shade 101 by 17
2023-04-02 10:00AM Shade 120 by 32
2023-04-02 11:30AM Shade 144 by 43
2023-04-02 01:00PM Shade 176 by 49
2023-04-02 02:30PM Shade 209 by 45
2023-04-02 04:00PM Shade 235 by 35
2023-04-02 05:30PM Shade 255 by 21
2023-04-02 07:00PM Shade 272 by 6

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