What kind of rain is referred to by "precipitation of 50mm or more in one occurrence," which is used as a criterion for suspending operations?

What kind of rain is referred to as "precipitation of 50 mm or more in one occurrence," used as a standard for work suspension, as supervised by the meteorologist of Sysmet Co., Ltd. for civil engineering and construction site supervisors?

last updated Jan 07, 2026

[Weather Helpful Information] Know the Heat Index (WBGT) to Avoid Heat Stroke!

The exclusive meteorologist of Sysmet Co., Ltd. will provide easy-to-understand explanations of weather-related terms and the characteristics of weather for each season!

last updated Nov 18, 2024

Prepare for localized heavy rain! Guidebook on how to utilize weather information <Materials available>

To ensure safety at construction sites! Introducing materials related to linear precipitation zone information.

last updated Dec 17, 2024

Weather Information Utilization Self-Check Sheet

Quantifying the utilization of weather information! Let's score based on the responses and consider countermeasures!

last updated May 30, 2024

What kind of wind is an average wind speed of 10 m/s for construction work suspension criteria?

[Weather Helpful Information] What kind of wind is an average wind speed of 10 m/s for work stoppage criteria?

last updated Nov 18, 2024

For Civil Engineering and Construction: Heat Index (WBGT) and Physical Work Intensity

Supervised by Sysmet Co., Ltd. Weather Forecasters! A simple explanation of the Heat Index (WBGT) and physical work intensity!

last updated Nov 18, 2024

【Useful Weather Information】What is radiative cooling?

We will provide easy-to-understand explanations of meteorological terms and the characteristics of weather by season! Radiative cooling, DX, ICT, remote monitoring.

last updated Oct 18, 2023

【Useful Weather Information】Why is mountain weather so changeable?

A dedicated meteorologist from Sysmet will provide easy-to-understand explanations of weather-related terms and the characteristics of seasonal weather!

last updated Dec 22, 2023

【Weather Helpful Information】What is the autumn rain front?

We will provide easy-to-understand explanations of meteorological terms and the characteristics of weather for each season!

last updated Oct 05, 2023

【Useful Weather Information】What is the Föhn Phenomenon?

The exclusive meteorologist of Sysmet Co., Ltd. will provide easy-to-understand explanations of weather-related terms and the characteristics of weather by season!

last updated Jun 10, 2024

[Weather Helpful Information] What is a "front" in the first place?

We will provide easy-to-understand explanations of meteorological terms and the characteristics of weather by season! Linear precipitation zone, typhoon, DX, ICT, remote monitoring.

last updated Oct 17, 2023

[Weather Useful Information] Regarding the sudden rise in temperature on December 15, 2023.

The in-house meteorologist of Sysmet Co., Ltd. will provide easy-to-understand explanations of weather-related terms and the characteristics of weather for each season!

last updated Dec 22, 2023

[Free Distribution] Preventing Lightning Damage Part 1: Basic Knowledge and Evacuation Action Guidebook

Please use this for ensuring workplace safety and training materials.

last updated Nov 26, 2024

[Presentation of Materials] Utilizing Walrus Information - Introductory Edition -

Sysmet will clearly explain the basic knowledge of Japan's oceanographic and meteorological observations and forecasts, as well as the process of how information reaches everyone!

last updated Nov 18, 2024

[Free Gift] Useful Product Information Collection - Compass PLUS -

We have compiled useful information from past issues of "Compass PLUS" into an easy-to-read guidebook.

last updated Jan 08, 2026

[Weather Helpful Information] The rainy season has arrived! Why does the plum rain occur?

The exclusive meteorologist of Sysmet Co., Ltd. will provide easy-to-understand explanations of weather-related terms and the characteristics of weather for each season!

last updated Jul 29, 2024

Private weather company Sysmet Co., Ltd. releases product map.

This is an overview of the services provided by the weather company Sysmet Co., Ltd.

last updated Dec 09, 2024

What is the "utilization coefficient" used in port construction for those involved in marine construction?

【Useful Weather Information】What is the "utilization coefficient" used in port construction?

last updated Nov 18, 2024

[In Progress] Heat Stroke Helpful Handbook - Basic Knowledge Edition (2025 Version)

To safely get through summer work! Let's systematize measures against heatstroke!

last updated Jul 18, 2025

Meteorological Useful Information "Danger Warning" Added - New Disaster Prevention Meteorological Information in Five Levels

We are currently publishing useful information related to weather, supervised by a meteorologist from Sysmet Co., Ltd., that is helpful for business and daily life.

last updated Jan 08, 2026