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Experts measuring rainfall
and its consequencesTM

OneRain provides the solutions that empower our clients
to manage water for good.

OneRain, an AEM brand, is excited to announce that Contrail® is now part of AEM Elements™ 360 multi-hazard decision support application.

Take command of multi-hazard risk management with AEM Elements 360

With AEM Elements 360, users will experience all the features and benefits you’re accustomed to with Contrail, plus access to new, cutting-edge features in development. Effective immediately, new customers will use the AEM Elements 360 application, where they will enjoy all the benefits you’re accustomed to with Contrail, plus access to new, cutting-edge features in development. Existing Contrail customers will continue to receive the same superior customer support you have come to expect from AEM and our OneRain brand. 

Read EoS Announcement.

Flood Warning

Dam Safety

Reservoir Operations

Road Weather

Water Resources




Water Quality

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Over 30 years of experience

We provide the solutions that empower our clients to manage water for good. Our expertise encompasses the best environmental monitoring and water-related software and technologies, from gauging, telemetry, and remote sensing, to visualization, analysis, notification, and control.

For more than 30 years, we have helped private and public sector clients create their solutions to optimize water management, heighten regulatory compliance, achieve successful civil works, and save lives.

A recognized leader in measuring and understanding water

OneRain, an AEM brand, helps optimize water management and is shaping the next generation of real-time hydro-meteorological and environmental monitoring technologies and systems. Our environmental monitoring software, technologies, and rainfall-related professional services, deliver the most accurate estimation of rainfall and its consequences from start to finish.

We design, build, and maintain the monitoring sensor networks that provide data in real time, including StormLink® telemetry solutions that collect data from and can interact with previously unreachable locations. Our StormData™ products and services are focused on creating the best possible spatially distributed rainfall information, both historically and in real time. Our Contrail® environmental monitoring software, now part of AEM Elements 360 for real-time applications, turns data into actionable decision making. Automated communications enable actions that reduce risk, minimize losses and save lives.

StormLink® Telemetry

Real-time data collection networks that deliver information about critical sites wherever you and they are, when and where it’s needed. Well designed to meet your operational decision making and archive quality requirements.

StormData™ Services

Real-time, short-term forecast, and historical gauge-adjusted radar rainfall (GARR) archive from mid-1990s to today. Gridded data, basin accumulations, multiple formats. StormProperties™ Analysis realistic Design Storms, historical and forensic rainfall event analyses …

Our Total System Approach

End-to-end real-time hydrometeorological monitoring and early warning systems

24/7-reliable data collection and management solutions

StormData™ gauge-adjusted radar rainfall for real-time, future, and analytical applications

StormProperties™ Analysis to create realistic Design Storms

StormLink® real-time satellite and IP telemetry systems and data services

Complete hydrologic network design, telemetry system integration and implementation

OneRainTech™ Field Services

Best practices consulting and professional services

Just some of our valued clients...

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