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

Select A Zone:

Cordova
Avalanche Report

Report not available. See AAIC for more information.

Eastern Alaska Range
Avalanche Report

Report not available. See AAIC for more information.

Haines Chilkat Pass
Avalanche Report

Report not available. See AAIC for more information.

Haines Lutak
Avalanche Report

Report not available. See AAIC for more information.

Haines Transitional
Avalanche Report

Report not available. See AAIC for more information.

Valdez Continental
Avalanche Report

Report not available. See AAIC for more information.

Valdez Intermountain
Avalanche Report

Report not available. See AAIC for more information.

Valdez Maritime
Avalanche Report

Report not available. See AAIC for more information.

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, May 03, 2023 7:00AM
Issued by: CNFAIC

Cordova City/Borough
Avalanche Report

Report not available. See CTCAK for more information.

Juneau
Avalanche Report

Report not available. See JUAK for more information.

Juneau
Avalanche Report

Report not available. See CAAC for more information.

Hatcher Pass
Avalanche Report

Report not available. See HPAC for more information.

Issued at: Saturday, April 22, 2023 7:01AM
Issued by: HPAC


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:50AM Shade 59 by 1
2023-05-04 07:20AM Shade 78 by 12
2023-05-04 08:50AM Shade 98 by 23
2023-05-04 10:20AM Shade 119 by 33
2023-05-04 11:50AM Shade 144 by 41
2023-05-04 01:20PM Shade 174 by 45
2023-05-04 02:50PM Shade 204 by 44
2023-05-04 04:20PM Shade 231 by 37
2023-05-04 05:50PM Shade 254 by 27
2023-05-04 07:20PM Shade 274 by 16
2023-05-04 08:50PM Shade 293 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:30AM Shade 54 by 1
2023-05-04 07:00AM Shade 74 by 10
2023-05-04 08:30AM Shade 94 by 20
2023-05-04 10:00AM Shade 115 by 30
2023-05-04 11:30AM Shade 140 by 38
2023-05-04 01:00PM Shade 167 by 42
2023-05-04 02:30PM Shade 197 by 42
2023-05-04 04:00PM Shade 224 by 37
2023-05-04 05:30PM Shade 248 by 29
2023-05-04 07:00PM Shade 269 by 19
2023-05-04 08:30PM Shade 289 by 9


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 06:20AM Shade 60 by 2
2023-05-04 07:50AM Shade 79 by 12
2023-05-04 09:20AM Shade 98 by 23
2023-05-04 10:50AM Shade 120 by 34
2023-05-04 12:20PM Shade 146 by 43
2023-05-04 01:50PM Shade 175 by 46
2023-05-04 03:20PM Shade 206 by 44
2023-05-04 04:50PM Shade 233 by 37
2023-05-04 06:20PM Shade 256 by 27
2023-05-04 07:50PM Shade 276 by 16
2023-05-04 09:20PM Shade 295 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:10AM Shade 59 by 1
2023-05-04 06:40AM Shade 78 by 11
2023-05-04 08:10AM Shade 97 by 23
2023-05-04 09:40AM Shade 118 by 34
2023-05-04 11:10AM Shade 143 by 42
2023-05-04 12:40PM Shade 173 by 47
2023-05-04 02:10PM Shade 204 by 45
2023-05-04 03:40PM Shade 232 by 38
2023-05-04 05:10PM Shade 255 by 28
2023-05-04 06:40PM Shade 274 by 16
2023-05-04 08:10PM Shade 293 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:20AM Shade 60 by 2
2023-05-04 06:50AM Shade 79 by 12
2023-05-04 08:20AM Shade 99 by 24
2023-05-04 09:50AM Shade 120 by 34
2023-05-04 11:20AM Shade 146 by 43
2023-05-04 12:50PM Shade 176 by 47
2023-05-04 02:20PM Shade 207 by 44
2023-05-04 03:50PM Shade 234 by 37
2023-05-04 05:20PM Shade 256 by 27
2023-05-04 06:50PM Shade 276 by 15
2023-05-04 08:20PM Shade 295 by 4


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:40AM Shade 57 by 1
2023-05-04 07:10AM Shade 76 by 11
2023-05-04 08:40AM Shade 96 by 21
2023-05-04 10:10AM Shade 117 by 32
2023-05-04 11:40AM Shade 142 by 40
2023-05-04 01:10PM Shade 170 by 45
2023-05-04 02:40PM Shade 201 by 44
2023-05-04 04:10PM Shade 228 by 37
2023-05-04 05:40PM Shade 251 by 28
2023-05-04 07:10PM Shade 272 by 18
2023-05-04 08:40PM Shade 291 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:40AM Shade 56 by 1
2023-05-04 07:10AM Shade 76 by 10
2023-05-04 08:40AM Shade 95 by 21
2023-05-04 10:10AM Shade 117 by 32
2023-05-04 11:40AM Shade 141 by 40
2023-05-04 01:10PM Shade 170 by 45
2023-05-04 02:40PM Shade 200 by 44
2023-05-04 04:10PM Shade 228 by 38
2023-05-04 05:40PM Shade 251 by 28
2023-05-04 07:10PM Shade 272 by 18
2023-05-04 08:40PM Shade 291 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:50AM Shade 58 by 1
2023-05-04 07:20AM Shade 78 by 11
2023-05-04 08:50AM Shade 97 by 22
2023-05-04 10:20AM Shade 119 by 33
2023-05-04 11:50AM Shade 144 by 41
2023-05-04 01:20PM Shade 173 by 45
2023-05-04 02:50PM Shade 203 by 43
2023-05-04 04:20PM Shade 230 by 37
2023-05-04 05:50PM Shade 253 by 27
2023-05-04 07:20PM Shade 273 by 17
2023-05-04 08:50PM Shade 293 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 06:00AM Shade 57 by 1
2023-05-04 07:30AM Shade 77 by 11
2023-05-04 09:00AM Shade 96 by 22
2023-05-04 10:30AM Shade 118 by 32
2023-05-04 12:00PM Shade 143 by 40
2023-05-04 01:30PM Shade 172 by 45
2023-05-04 03:00PM Shade 202 by 43
2023-05-04 04:30PM Shade 229 by 37
2023-05-04 06:00PM Shade 252 by 28
2023-05-04 07:30PM Shade 273 by 17
2023-05-04 09:00PM Shade 292 by 7


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 06:00AM Shade 57 by 1
2023-05-04 07:30AM Shade 77 by 11
2023-05-04 09:00AM Shade 96 by 22
2023-05-04 10:30AM Shade 117 by 33
2023-05-04 12:00PM Shade 142 by 41
2023-05-04 01:30PM Shade 171 by 46
2023-05-04 03:00PM Shade 202 by 44
2023-05-04 04:30PM Shade 230 by 38
2023-05-04 06:00PM Shade 253 by 28
2023-05-04 07:30PM Shade 273 by 17
2023-05-04 09:00PM Shade 292 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 06:00AM Shade 58 by 1
2023-05-04 07:30AM Shade 77 by 11
2023-05-04 09:00AM Shade 96 by 22
2023-05-04 10:30AM Shade 117 by 32
2023-05-04 12:00PM Shade 142 by 41
2023-05-04 01:30PM Shade 172 by 45
2023-05-04 03:00PM Shade 202 by 44
2023-05-04 04:30PM Shade 229 by 38
2023-05-04 06:00PM Shade 253 by 28
2023-05-04 07:30PM Shade 273 by 17
2023-05-04 09:00PM Shade 292 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 06:00AM Shade 58 by 1
2023-05-04 07:30AM Shade 77 by 11
2023-05-04 09:00AM Shade 97 by 22
2023-05-04 10:30AM Shade 118 by 33
2023-05-04 12:00PM Shade 143 by 41
2023-05-04 01:30PM Shade 172 by 45
2023-05-04 03:00PM Shade 202 by 44
2023-05-04 04:30PM Shade 230 by 37
2023-05-04 06:00PM Shade 253 by 28
2023-05-04 07:30PM Shade 273 by 17
2023-05-04 09:00PM Shade 292 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:50AM Shade 59 by 1
2023-05-04 07:20AM Shade 78 by 12
2023-05-04 08:50AM Shade 98 by 23
2023-05-04 10:20AM Shade 119 by 33
2023-05-04 11:50AM Shade 144 by 41
2023-05-04 01:20PM Shade 174 by 45
2023-05-04 02:50PM Shade 204 by 44
2023-05-04 04:20PM Shade 231 by 37
2023-05-04 05:50PM Shade 254 by 27
2023-05-04 07:20PM Shade 274 by 16
2023-05-04 08:50PM Shade 293 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:10AM Shade 60 by 1
2023-05-04 06:40AM Shade 78 by 12
2023-05-04 08:10AM Shade 97 by 23
2023-05-04 09:40AM Shade 119 by 35
2023-05-04 11:10AM Shade 144 by 44
2023-05-04 12:40PM Shade 175 by 48
2023-05-04 02:10PM Shade 206 by 46
2023-05-04 03:40PM Shade 234 by 38
2023-05-04 05:10PM Shade 256 by 27
2023-05-04 06:40PM Shade 276 by 16
2023-05-04 08:10PM Shade 294 by 4


Sunlight Angles

Time of day Lighting (Az/Z)
2023-05-04 05:10AM Shade 60 by 1
2023-05-04 06:40AM Shade 78 by 12
2023-05-04 08:10AM Shade 97 by 23
2023-05-04 09:40AM Shade 119 by 35
2023-05-04 11:10AM Shade 144 by 43
2023-05-04 12:40PM Shade 175 by 48
2023-05-04 02:10PM Shade 206 by 45
2023-05-04 03:40PM Shade 233 by 38
2023-05-04 05:10PM Shade 256 by 27
2023-05-04 06:40PM Shade 275 by 16
2023-05-04 08:10PM Shade 294 by 4


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-23 06:30AM Shade 65 by 1
2023-04-23 08:00AM Shade 85 by 12
2023-04-23 09:30AM Shade 105 by 22
2023-04-23 11:00AM Shade 127 by 32
2023-04-23 12:30PM Shade 153 by 39
2023-04-23 02:00PM Shade 182 by 41
2023-04-23 03:30PM Shade 210 by 38
2023-04-23 05:00PM Shade 235 by 31
2023-04-23 06:30PM Shade 257 by 21
2023-04-23 08:00PM Shade 277 by 11
2023-04-23 09:30PM Shade 297 by 1

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