New Hampshire 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.

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Select A Zone:

Presidential Range
Avalanche Report

2023-04-02 Avalanche Danger
  • Considerable danger (above 5101')
  • Considerable danger (3001' to 5100')
  • Moderate danger (below 3000')
a0-0e5101-20310f f7941e
a0-0e3001-5100f f7941e
a0-0e0-3000f fff200
2023-04-02 Wet Slab
  • All aspects (above 5101')
  • All aspects (3001' to 5100')
a158-158e5101-20310f A200FF
a158-158e3001-5100f A200FF
2023-04-02 Wet Loose
  • All aspects (below 3000')
a158-158e0-3000f 0000FF

Issued at: Saturday, April 01, 2023 7:11AM
Issued by: MWAC


Sunlight Angles

Time of day Lighting (Az/Z)
2023-04-02 06:40AM Shade 85 by 2
2023-04-02 08:10AM Shade 101 by 18
2023-04-02 09:40AM Shade 119 by 33
2023-04-02 11:10AM Shade 144 by 45
2023-04-02 12:40PM Shade 177 by 51
2023-04-02 02:10PM Shade 210 by 47
2023-04-02 03:40PM Shade 237 by 36
2023-04-02 05:10PM Shade 256 by 21
2023-04-02 06:40PM Shade 272 by 5

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