Precipitation Projections for Alaska Infrastructure

cars in heavy rain

How might future changes in precipitation affect Alaska’s roads, bridges, and other infrastructure?

This tool compiles projected maximum precipitation events across Alaska.

Choose a location by clicking a map of Alaska, or enter coordinates for a specific spot. You can also choose a 20-year time span out to 2099.

The data used for the tool are based on NOAA Atlas 14 data that are downscaled to provide better regional (global-to-Alaska) precision.

Data downloads available.

Explore precipitation changes across Alaska

Tool Details

Created by:

  • Scenarios Network for Alaska + Arctic Planning (SNAP)


  • Alaska Department of Transportation
  • National Weather Service Alaska Region
  • Neptune Inc.

Funded by:

  • Alaska Department of Transportation