[Wave Forecast Information] Weather and Ocean Conditions Comprehensive Portal Site Compass PLUS

On November 11, 2025, a proposal to revise the "Disaster Prevention Meteorological Information" concerning floods, heavy rain, landslides, and storm surges was approved by the Cabinet. The implementation is scheduled for the rainy season in 2026. This article will explain what disaster prevention meteorological information is, the issues with the current system, and how the new disaster prevention meteorological information will change. Table of Contents 1. What is disaster prevention meteorological information? 2. Issues with the current disaster prevention meteorological information 3. How will the new disaster prevention meteorological information change? 1. What is disaster prevention meteorological information? Disaster prevention meteorological information refers to information related to disaster risks announced by the Japan Meteorological Agency. It is issued when the risk of disasters such as heavy rain, floods, strong winds, lightning, storm surges, and landslides increases, serving as a basis for decisions on evacuation and work suspension. Specifically, it includes alerts and warnings such as "Special Heavy Rain Warning," "Landslide Warning," and "Storm Surge Advisory," which are denoted by the suffixes "warning" or "advisory." It also encompasses various other information, such as "Meteorological Information on Significant Heavy Rain" that alerts to the risk of linearly organized precipitation bands, "Heat Stroke Warning Alerts" during summer, and "Typhoon Information." 2. Issues with the current disaster prevention meteorological information For details, please visit our website.

This time, 【Compass PLUS】 has undergone a complete renewal to achieve higher convenience, operability, and functionality, taking into account the recent increase in DX promotion and the valuable feedback from all users in the field. The new 【Compass PLUS】 revitalizes all aspects of design, functionality, and usability while leveraging its traditional strengths, further enhancing its value for use in the field. *Please note that previous TOP settings and screen settings will be reset. If you wish to rearrange the elements on the top screen or display predictive printing after logging in, you will need to set them again. Regarding the renewal of Compass PLUS, we have prepared materials on the modifications and the latest catalog in PDF format. For those who would like to know more details or are considering implementation, please visit our company website.

The Japan Meteorological Agency announced a three-month forecast from December to February on Tuesday, November 25. During this period, the upper-level westerly winds will meander southward near Japan, but will generally flow in the same position as the average year. For more details, please visit our website.

In recent years, with the increasing push for DX (digital transformation) and valuable feedback from all users in the field, we will be fully renewing "Compass PLUS." The new Compass PLUS will leverage its traditional strengths while completely revamping its design, functionality, and usability, thereby further enhancing its value in practical use. The official release is as follows, so please wait a little longer until then. 1) Improved visibility and operability 2) Enhanced intuitiveness 3) Streamlined information sharing These are the main points of improvement, and it will be available starting December 16, 2025. For an overview of the renewal, please download the materials. We are also planning an online briefing session, so please download the materials for more details as well. Renewal date: Tuesday, December 16, 2025 Temporary suspension period: Monday, December 15, 2025, 17:00 – 19:00 *Due to the renewal, data updates for observation devices (wave height, weather, water level, noise and vibration) will be suspended during the temporary suspension period. However, viewing of forecast information and other various information will still be possible as usual.