Rain Shadow Footprint Mapper

Draw roof/wall overhang outlines and mark wetted zones after rain

About this interactive tool

Designed for Rain Shadow Observations, this workspace helps you work through a specific task using your own measurements and observations.

What you can make: Wet/dry footprint comparison map

Suggested measurements or materials: Building sketch; wet patches; wind direction

No registration, paid API, or server upload is required. Measurements, labels and notes are entered by you. Use your own judgment to check the results before applying them in real life.

Interactive workspace

Your result

Your work is stored only in this browser where supported. Clearing browser data removes saved work. Export a copy if you want to keep it.

Related forum areas

These forum subjects are relevant to this tool. Visit the community to browse discussions or ask a question.

Leeward Wall Viewing Spots Rain Shelter Comparison Points Wind Direction Observation Tools

This is a user-operated planning and record-keeping aid, not a measurement instrument or professional safety assessment. Results depend on the data you enter.