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: Monday, April 29, 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

Report not available. See HAC for more information.

Issued at: Sunday, April 14, 2024 6:00AM
Issued by: HAC

Transitional
Avalanche Report

Report not available. See HAC for more information.

Issued at: Sunday, April 14, 2024 6:00AM
Issued by: HAC

Hatcher Pass
Avalanche Report

Report not available. See HPAC for more information.

Issued at: Saturday, April 20, 2024 6:37AM
Issued by: HPAC

Continental
Avalanche Report

Report not available. See VAC for more information.

Issued at: Monday, April 29, 2024 8:30AM
Issued by: VAC

Intermountain
Avalanche Report

Report not available. See VAC for more information.

Issued at: Monday, April 29, 2024 8:30AM
Issued by: VAC

Maritime
Avalanche Report

Report not available. See VAC for more information.

Issued at: Monday, April 29, 2024 8:30AM
Issued by: VAC


Sunlight Angles

Time of day Lighting (Az/Z)
2024-05-13 05:30AM Shade 50 by 1
2024-05-13 07:00AM Shade 69 by 10
2024-05-13 08:30AM Shade 88 by 21
2024-05-13 10:00AM Shade 109 by 31
2024-05-13 11:30AM Shade 133 by 41
2024-05-13 01:00PM Shade 161 by 46
2024-05-13 02:30PM Shade 192 by 47
2024-05-13 04:00PM Shade 222 by 42
2024-05-13 05:30PM Shade 246 by 33
2024-05-13 07:00PM Shade 267 by 23
2024-05-13 08:30PM Shade 287 by 12
2024-05-13 10:00PM Shade 306 by 2


Sunlight Angles

Time of day Lighting (Az/Z)
2024-05-13 05:40AM Shade 52 by 1
2024-05-13 07:10AM Shade 71 by 11
2024-05-13 08:40AM Shade 90 by 22
2024-05-13 10:10AM Shade 111 by 33
2024-05-13 11:40AM Shade 135 by 42
2024-05-13 01:10PM Shade 164 by 48
2024-05-13 02:40PM Shade 196 by 48
2024-05-13 04:10PM Shade 225 by 42
2024-05-13 05:40PM Shade 249 by 33
2024-05-13 07:10PM Shade 270 by 22
2024-05-13 08:40PM Shade 289 by 11
2024-05-13 10:10PM Shade 308 by 1


Sunlight Angles

Time of day Lighting (Az/Z)
2024-05-13 05:40AM Shade 52 by 1
2024-05-13 07:10AM Shade 71 by 11
2024-05-13 08:40AM Shade 90 by 22
2024-05-13 10:10AM Shade 111 by 33
2024-05-13 11:40AM Shade 135 by 42
2024-05-13 01:10PM Shade 164 by 47
2024-05-13 02:40PM Shade 196 by 47
2024-05-13 04:10PM Shade 225 by 42
2024-05-13 05:40PM Shade 249 by 32
2024-05-13 07:10PM Shade 270 by 22
2024-05-13 08:40PM Shade 289 by 11
2024-05-13 10:10PM Shade 308 by 1


Sunlight Angles

Time of day Lighting (Az/Z)
2024-04-30 06:10AM Shade 60 by 1
2024-04-30 07:40AM Shade 80 by 11
2024-04-30 09:10AM Shade 99 by 22
2024-04-30 10:40AM Shade 121 by 33
2024-04-30 12:10PM Shade 146 by 41
2024-04-30 01:40PM Shade 175 by 44
2024-04-30 03:10PM Shade 205 by 42
2024-04-30 04:40PM Shade 232 by 35
2024-04-30 06:10PM Shade 255 by 26
2024-04-30 07:40PM Shade 275 by 15
2024-04-30 09:10PM Shade 294 by 4


Sunlight Angles

Time of day Lighting (Az/Z)
2024-05-13 04:50AM Shade 54 by 1
2024-05-13 06:20AM Shade 73 by 11
2024-05-13 07:50AM Shade 92 by 23
2024-05-13 09:20AM Shade 112 by 34
2024-05-13 10:50AM Shade 137 by 44
2024-05-13 12:20PM Shade 167 by 50
2024-05-13 01:50PM Shade 200 by 49
2024-05-13 03:20PM Shade 229 by 42
2024-05-13 04:50PM Shade 253 by 32
2024-05-13 06:20PM Shade 273 by 20
2024-05-13 07:50PM Shade 291 by 9


Sunlight Angles

Time of day Lighting (Az/Z)
2024-05-13 05:20AM Shade 51 by 1
2024-05-13 06:50AM Shade 71 by 10
2024-05-13 08:20AM Shade 90 by 21
2024-05-13 09:50AM Shade 110 by 32
2024-05-13 11:20AM Shade 134 by 41
2024-05-13 12:50PM Shade 163 by 47
2024-05-13 02:20PM Shade 195 by 47
2024-05-13 03:50PM Shade 224 by 42
2024-05-13 05:20PM Shade 248 by 33
2024-05-13 06:50PM Shade 269 by 22
2024-05-13 08:20PM Shade 288 by 11
2024-05-13 09:50PM Shade 307 by 2


Sunlight Angles

Time of day Lighting (Az/Z)
2024-05-13 05:00AM Shade 47 by 1
2024-05-13 06:30AM Shade 67 by 9
2024-05-13 08:00AM Shade 86 by 19
2024-05-13 09:30AM Shade 107 by 29
2024-05-13 11:00AM Shade 130 by 38
2024-05-13 12:30PM Shade 157 by 44
2024-05-13 02:00PM Shade 187 by 45
2024-05-13 03:30PM Shade 216 by 41
2024-05-13 05:00PM Shade 241 by 34
2024-05-13 06:30PM Shade 263 by 24
2024-05-13 08:00PM Shade 283 by 14
2024-05-13 09:30PM Shade 303 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)
2024-04-15 06:00AM Shade 72 by 1
2024-04-15 07:30AM Shade 91 by 12
2024-04-15 09:00AM Shade 111 by 23
2024-04-15 10:30AM Shade 134 by 33
2024-04-15 12:00PM Shade 160 by 39
2024-04-15 01:30PM Shade 189 by 41
2024-04-15 03:00PM Shade 217 by 36
2024-04-15 04:30PM Shade 241 by 28
2024-04-15 06:00PM Shade 262 by 17
2024-04-15 07:30PM Shade 281 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-04-15 06:00AM Shade 71 by 1
2024-04-15 07:30AM Shade 90 by 12
2024-04-15 09:00AM Shade 110 by 23
2024-04-15 10:30AM Shade 133 by 33
2024-04-15 12:00PM Shade 159 by 39
2024-04-15 01:30PM Shade 188 by 41
2024-04-15 03:00PM Shade 216 by 36
2024-04-15 04:30PM Shade 240 by 28
2024-04-15 06:00PM Shade 261 by 17
2024-04-15 07:30PM Shade 281 by 6


Sunlight Angles

Time of day Lighting (Az/Z)
2024-04-21 06:30AM Shade 66 by 1
2024-04-21 08:00AM Shade 85 by 11
2024-04-21 09:30AM Shade 105 by 22
2024-04-21 11:00AM Shade 128 by 31
2024-04-21 12:30PM Shade 153 by 38
2024-04-21 02:00PM Shade 181 by 40
2024-04-21 03:30PM Shade 210 by 38
2024-04-21 05:00PM Shade 235 by 31
2024-04-21 06:30PM Shade 257 by 21
2024-04-21 08:00PM Shade 277 by 10


Sunlight Angles

Time of day Lighting (Az/Z)
2024-04-30 05:50AM Shade 59 by 1
2024-04-30 07:20AM Shade 79 by 11
2024-04-30 08:50AM Shade 98 by 22
2024-04-30 10:20AM Shade 120 by 32
2024-04-30 11:50AM Shade 145 by 40
2024-04-30 01:20PM Shade 174 by 44
2024-04-30 02:50PM Shade 203 by 42
2024-04-30 04:20PM Shade 230 by 36
2024-04-30 05:50PM Shade 253 by 26
2024-04-30 07:20PM Shade 273 by 16
2024-04-30 08:50PM Shade 293 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-04-30 05:50AM Shade 59 by 1
2024-04-30 07:20AM Shade 78 by 11
2024-04-30 08:50AM Shade 98 by 22
2024-04-30 10:20AM Shade 119 by 32
2024-04-30 11:50AM Shade 144 by 40
2024-04-30 01:20PM Shade 173 by 44
2024-04-30 02:50PM Shade 203 by 42
2024-04-30 04:20PM Shade 230 by 36
2024-04-30 05:50PM Shade 253 by 26
2024-04-30 07:20PM Shade 273 by 16
2024-04-30 08:50PM Shade 293 by 5


Sunlight Angles

Time of day Lighting (Az/Z)
2024-04-30 06:00AM Shade 61 by 2
2024-04-30 07:30AM Shade 80 by 12
2024-04-30 09:00AM Shade 100 by 23
2024-04-30 10:30AM Shade 122 by 33
2024-04-30 12:00PM Shade 147 by 41
2024-04-30 01:30PM Shade 176 by 44
2024-04-30 03:00PM Shade 206 by 42
2024-04-30 04:30PM Shade 232 by 35
2024-04-30 06:00PM Shade 255 by 25
2024-04-30 07:30PM Shade 275 by 15
2024-04-30 09:00PM Shade 294 by 4

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