Alaska 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

Chugach State Park
Avalanche Report

Report not available. See CNFAIC for more information.

Seward and Lost Lake
Avalanche Report

Report not available. See CNFAIC for more information.

Summit Lake
Avalanche Report

Report not available. See CNFAIC for more information.

Turnagain Pass
Avalanche Report

Report not available. See CNFAIC for more information.

Issued at: Wednesday, March 27, 2024 7:00AM
Issued by: CNFAIC

Juneau
Avalanche Report

Report not available. See CAAC for more information.

Cordova
Avalanche Report

Report not available. See CAC for more information.

Eastern Alaska Range
Avalanche Report

Report not available. See EARAC for more information.

Chilkat Pass
Avalanche Report

Report not available. See HAC for more information.

Issued at: Friday, March 01, 2024 7:00AM
Issued by: HAC

Lutak
Avalanche Report

2024-03-28 Avalanche Danger
  • Considerable danger (above 6101')
  • Considerable danger (4401' to 6100')
  • Moderate danger (below 4400')
a0-0e6101-20310f f7941e
a0-0e4401-6100f f7941e
a0-0e0-4400f fff200
2024-03-25 Wet Loose
  • E to W aspects (above 6101')
  • All aspects (4401' to 6100')
  • All aspects (below 4400')
a68-293e6101-20310f A200FF
a248-248e4401-6100f A200FF
a158-158e0-4400f A200FF
2024-03-25 Persistent Slab
  • All aspects (above 6101')
  • All aspects (4401' to 6100')
  • All aspects (below 4400')
a158-158e6101-20310f 0000FF
a158-158e4401-6100f 0000FF
a158-158e0-4400f 0000FF
2024-03-25 Deep Persistent Slab
  • All aspects (4401' to 6100')
  • All aspects (below 4400')
a158-158e4401-6100f 009AFF
a158-158e0-4400f 009AFF

Issued at: Sunday, March 24, 2024 6:00AM
Issued by: HAC

Transitional
Avalanche Report

2024-03-28 Avalanche Danger
  • Considerable danger (above 6101')
  • Considerable danger (4401' to 6100')
  • Moderate danger (below 4400')
a0-0e6101-20310f f7941e
a0-0e4401-6100f f7941e
a0-0e0-4400f fff200
2024-03-25 Wet Loose
  • E to W aspects (above 6101')
  • All aspects (4401' to 6100')
  • All aspects (below 4400')
a68-293e6101-20310f A200FF
a248-248e4401-6100f A200FF
a158-158e0-4400f A200FF
2024-03-25 Persistent Slab
  • All aspects (above 6101')
  • All aspects (4401' to 6100')
  • All aspects (below 4400')
a158-158e6101-20310f 0000FF
a158-158e4401-6100f 0000FF
a158-158e0-4400f 0000FF
2024-03-25 Deep Persistent Slab
  • All aspects (4401' to 6100')
  • All aspects (below 4400')
a158-158e4401-6100f 009AFF
a158-158e0-4400f 009AFF

Issued at: Sunday, March 24, 2024 6:00AM
Issued by: HAC

Hatcher Pass
Avalanche Report

Report not available. See HPAC for more information.

Issued at: Saturday, March 23, 2024 6:44AM
Issued by: HPAC

Continental
Avalanche Report

2024-03-28 Avalanche Danger
  • Moderate danger (above 6101')
  • Moderate danger (4401' to 6100')
  • Moderate danger (below 4400')
a0-0e6101-20310f fff200
a0-0e4401-6100f fff200
a0-0e0-4400f fff200
2024-03-28 Storm Slab
  • All aspects (above 6101')
  • All aspects (4401' to 6100')
a158-158e6101-20310f A200FF
a158-158e4401-6100f A200FF
2024-03-28 Wet Loose
  • SE to SW aspects (above 6101')
  • E to W aspects (4401' to 6100')
  • E to W aspects (below 4400')
a113-248e6101-20310f 0000FF
a68-293e4401-6100f 0000FF
a68-293e0-4400f 0000FF

Issued at: Wednesday, March 27, 2024 8:02AM
Issued by: VAC

Intermountain
Avalanche Report

2024-03-28 Avalanche Danger
  • Moderate danger (above 6101')
  • Moderate danger (4401' to 6100')
  • Moderate danger (below 4400')
a0-0e6101-20310f fff200
a0-0e4401-6100f fff200
a0-0e0-4400f fff200
2024-03-28 Storm Slab
  • All aspects (above 6101')
  • All aspects (4401' to 6100')
a158-158e6101-20310f A200FF
a158-158e4401-6100f A200FF
2024-03-28 Wet Loose
  • SE to SW aspects (above 6101')
  • E to W aspects (4401' to 6100')
  • E to W aspects (below 4400')
a113-248e6101-20310f 0000FF
a68-293e4401-6100f 0000FF
a68-293e0-4400f 0000FF

Issued at: Wednesday, March 27, 2024 8:02AM
Issued by: VAC

Maritime
Avalanche Report

2024-03-28 Avalanche Danger
  • Moderate danger (above 6101')
  • Moderate danger (4401' to 6100')
  • Moderate danger (below 4400')
a0-0e6101-20310f fff200
a0-0e4401-6100f fff200
a0-0e0-4400f fff200
2024-03-28 Storm Slab
  • All aspects (above 6101')
  • All aspects (4401' to 6100')
a158-158e6101-20310f A200FF
a158-158e4401-6100f A200FF
2024-03-28 Wet Loose
  • SE to SW aspects (above 6101')
  • E to W aspects (4401' to 6100')
  • E to W aspects (below 4400')
a113-248e6101-20310f 0000FF
a68-293e4401-6100f 0000FF
a68-293e0-4400f 0000FF

Issued at: Wednesday, March 27, 2024 8:02AM
Issued by: VAC


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:50AM Shade 86 by 1
2024-03-28 09:20AM Shade 105 by 12
2024-03-28 10:50AM Shade 127 by 22
2024-03-28 12:20PM Shade 150 by 29
2024-03-28 01:50PM Shade 176 by 32
2024-03-28 03:20PM Shade 203 by 31
2024-03-28 04:50PM Shade 227 by 24
2024-03-28 06:20PM Shade 249 by 15
2024-03-28 07:50PM Shade 269 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:50AM Shade 86 by 1
2024-03-28 09:20AM Shade 105 by 12
2024-03-28 10:50AM Shade 126 by 22
2024-03-28 12:20PM Shade 150 by 30
2024-03-28 01:50PM Shade 176 by 33
2024-03-28 03:20PM Shade 203 by 31
2024-03-28 04:50PM Shade 227 by 25
2024-03-28 06:20PM Shade 249 by 16
2024-03-28 07:50PM Shade 269 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:50AM Shade 86 by 1
2024-03-28 09:20AM Shade 105 by 12
2024-03-28 10:50AM Shade 127 by 22
2024-03-28 12:20PM Shade 150 by 30
2024-03-28 01:50PM Shade 176 by 33
2024-03-28 03:20PM Shade 203 by 31
2024-03-28 04:50PM Shade 227 by 25
2024-03-28 06:20PM Shade 249 by 15
2024-03-28 07:50PM Shade 269 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:50AM Shade 86 by 2
2024-03-28 09:20AM Shade 106 by 12
2024-03-28 10:50AM Shade 127 by 22
2024-03-28 12:20PM Shade 151 by 29
2024-03-28 01:50PM Shade 177 by 33
2024-03-28 03:20PM Shade 203 by 31
2024-03-28 04:50PM Shade 227 by 24
2024-03-28 06:20PM Shade 249 by 15
2024-03-28 07:50PM Shade 269 by 4


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 06:50AM Shade 85 by 1
2024-03-28 08:20AM Shade 105 by 13
2024-03-28 09:50AM Shade 126 by 23
2024-03-28 11:20AM Shade 149 by 31
2024-03-28 12:50PM Shade 176 by 35
2024-03-28 02:20PM Shade 203 by 33
2024-03-28 03:50PM Shade 228 by 26
2024-03-28 05:20PM Shade 249 by 16
2024-03-28 06:50PM Shade 269 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:30AM Shade 85 by 1
2024-03-28 09:00AM Shade 105 by 12
2024-03-28 10:30AM Shade 126 by 22
2024-03-28 12:00PM Shade 149 by 29
2024-03-28 01:30PM Shade 175 by 33
2024-03-28 03:00PM Shade 202 by 31
2024-03-28 04:30PM Shade 226 by 25
2024-03-28 06:00PM Shade 248 by 16
2024-03-28 07:30PM Shade 268 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:30AM Shade 85 by 1
2024-03-28 09:00AM Shade 105 by 11
2024-03-28 10:30AM Shade 126 by 20
2024-03-28 12:00PM Shade 150 by 27
2024-03-28 01:30PM Shade 175 by 30
2024-03-28 03:00PM Shade 201 by 29
2024-03-28 04:30PM Shade 225 by 23
2024-03-28 06:00PM Shade 247 by 15
2024-03-28 07:30PM Shade 268 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-02 08:10AM Shade 105 by 1
2024-03-02 09:40AM Shade 125 by 11
2024-03-02 11:10AM Shade 146 by 19
2024-03-02 12:40PM Shade 170 by 23
2024-03-02 02:10PM Shade 194 by 23
2024-03-02 03:40PM Shade 217 by 18
2024-03-02 05:10PM Shade 239 by 9


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-25 07:00AM Shade 87 by 1
2024-03-25 08:30AM Shade 107 by 12
2024-03-25 10:00AM Shade 128 by 22
2024-03-25 11:30AM Shade 151 by 30
2024-03-25 01:00PM Shade 178 by 33
2024-03-25 02:30PM Shade 204 by 31
2024-03-25 04:00PM Shade 228 by 24
2024-03-25 05:30PM Shade 250 by 14
2024-03-25 07:00PM Shade 270 by 3


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-25 07:00AM Shade 87 by 1
2024-03-25 08:30AM Shade 106 by 12
2024-03-25 10:00AM Shade 127 by 22
2024-03-25 11:30AM Shade 151 by 30
2024-03-25 01:00PM Shade 177 by 33
2024-03-25 02:30PM Shade 203 by 31
2024-03-25 04:00PM Shade 228 by 24
2024-03-25 05:30PM Shade 249 by 15
2024-03-25 07:00PM Shade 269 by 3


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-24 08:00AM Shade 88 by 1
2024-03-24 09:30AM Shade 109 by 12
2024-03-24 11:00AM Shade 130 by 21
2024-03-24 12:30PM Shade 154 by 28
2024-03-24 02:00PM Shade 179 by 30
2024-03-24 03:30PM Shade 205 by 28
2024-03-24 05:00PM Shade 229 by 22
2024-03-24 06:30PM Shade 250 by 13
2024-03-24 08:00PM Shade 270 by 2


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:30AM Shade 85 by 1
2024-03-28 09:00AM Shade 105 by 12
2024-03-28 10:30AM Shade 126 by 21
2024-03-28 12:00PM Shade 149 by 29
2024-03-28 01:30PM Shade 175 by 32
2024-03-28 03:00PM Shade 201 by 31
2024-03-28 04:30PM Shade 226 by 25
2024-03-28 06:00PM Shade 248 by 16
2024-03-28 07:30PM Shade 268 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:30AM Shade 85 by 1
2024-03-28 09:00AM Shade 104 by 12
2024-03-28 10:30AM Shade 125 by 21
2024-03-28 12:00PM Shade 149 by 29
2024-03-28 01:30PM Shade 175 by 32
2024-03-28 03:00PM Shade 201 by 31
2024-03-28 04:30PM Shade 226 by 25
2024-03-28 06:00PM Shade 248 by 16
2024-03-28 07:30PM Shade 268 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-03-28 07:30AM Shade 84 by 1
2024-03-28 09:00AM Shade 104 by 11
2024-03-28 10:30AM Shade 125 by 21
2024-03-28 12:00PM Shade 148 by 29
2024-03-28 01:30PM Shade 174 by 32
2024-03-28 03:00PM Shade 201 by 31
2024-03-28 04:30PM Shade 225 by 25
2024-03-28 06:00PM Shade 247 by 16
2024-03-28 07:30PM Shade 268 by 5

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