New Book by Takayuki Inokuma, Head of Yamaten: 'Yamakei Mountaineering School: Introduction to Mountain Weather' Released June 2nd

Yama-to-Keikoku Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President: Hirofumi Ninomiya), a member of the Impress Group specializing in mountain and nature media, published 'Yamakei Mountaineering School: Introduction to Mountain Weather' on June 2, 2026.

This book is the definitive introductory guide to mountain meteorology by Takayuki Inokuma, head of 'Yamaten,' Japan's only company specializing in mountain weather forecasts. It intuitively explains 'mountain weather,' which changes differently from flatland weather due to terrain and wind, using abundant color photos and diagrams. It covers the basics of 'Kantenboki' (weather forecasting by observing clouds), the ten types of clouds, the mechanisms of high/low pressure systems and fronts, and how hikers can interpret wind direction and strength from weather maps.

Furthermore, by learning from actual accident cases—such as 'pseudo-good weather'—and cultivating practical judgment like setting turnaround points, this book condenses the knowledge needed to avoid meteorological risks and safely enjoy breathtaking views.

■ Key Features
- Visually understand 'cloud behavior' with abundant diagrams and color photos.
- Explains weather patterns by 'mountain region' across Japan.
- Teaches hikers how to read weather maps.
- Practical risk avoidance techniques learned from actual accident cases.
- Includes 'turnaround points' and 'safe hiking notes' useful in the field.

■ Table of Contents
1. Knowing Cloud Types
2. Mountain Weather Risks and Utilizing Weather Information
3. Why Does Mountain Weather Deteriorate?
4. High Pressure, Low Pressure, and Fronts
5. How Hikers Can Read Weather Maps
6. Mountain Weather by Season
7. Dangerous Weather Patterns Learned from Meteorological Accidents
8. Global Warming and Mountain Weather