Alertus / Tornado Solutions

Mass Notification for Tornadoes

Enhance Notification Reach And Effectiveness With Audible Notification

A hazardous tornado in a rural highway

The biggest threats during a tornado’s high winds are flying and falling debris. Homes and bridges get destroyed, and cars and trucks get tossed through the air. To protect your community from hazardous and deadly tornadoes, Alertus’ comprehensive mass notification system rapidly disseminates information to widespread, targeted areas to alert people of severe weather danger. 

 

Clear Intelligible Voice Messages

Alertus’ High Power Speaker Array (HPSA) instantly sends out clear outdoor voice messages using audible siren tones, pre-recorded messages, live voice, and industry-leading Text-to-Speech (TTS) technology. The speakers are designed to withstand harsh environments with a lightweight and durable design.

The HPSAs can be managed and activated remotely from the Alertus User Interface. When a tornado threat is detected, authorities can quickly and automatically activate the sirens to alert those affected to take immediate action.

HPSAs are an essential component of tornado preparedness and response efforts, as they help save lives and mitigate the impacts of disaster.

During the consultation, we will discuss your current situation to determine how Alertus can suit your needs.


audible Notification with Alertus’ high power speaker array

HPSAs are lightweight and can expand from 300 to 4200 watts. The speakers can be mounted on large poles, existing light poles using chain mounts, or on top of or on the side of a building. Our team of experts will work with you to determine the optimal placing, wattage, and speaker configuration to meet your alerting requirements. 

HPSA SPECIFICATIONS

Features

Amplification High Fidelity Class D 300W amplifiers
Operating Environment Indoor or outdoor
Frequency Response 200 - 5000 Hz
Operating Temperature -40°C to 85°C
Wattage 150W - 3000W+
Weight 19.8lb/speaker
Material Aluminum alloy
  • Durable: Survives extreme weather conditions

  • Secure wireless or IP communication: Encrypted AES256 radios communication

  • Purposeful design: Use of Industry best practices and conformity to international MNS standards

  • Easy-to-use: Quickly activate or automate activation with sensors

  • Cost-Effective: Designed to be lightweight for ease of installation and reduced cost

  • Reliable: Extensive quality control to ensure functionality

  • Unified: Messaging is sent across multiple layers


Key Steps to Effective Tornado Warning

  1. Siren Activation: Sirens are typically activated by local authorities, such as emergency management agencies or meteorological services, who closely monitor weather conditions and issue warnings when a tornado or severe weather event is detected.

  2. Signal Transmission: Once activated, a signal is sent to the sirens through a control system. This signal can be transmitted using various means, including wired connections, radio frequencies, or wireless communication systems.

  3. Siren Operation: Upon receiving the activation signal, the siren begins operating. Highly efficient Class D Audio amplifiers drive audio over two to 20 (300 - 4000 watt) speakers at the top of poles or rooftops.

  4. Sound Generation: The sound produced travels over long distances and is easily distinguishable from other ambient noises. The tones can be used alone or with complementary voice messages.

Alertus Key Benefits 

  1. Impactful Sound Propagation: HPSAs direct sound horizontally, maximizing its reach in the surrounding area. The Alertus line array configuration creates a wavefront propagating perpendicularly to the line source.

  2. Reliable Communication: Alertus sirens can be activated over radio waves (digital or analog), satellite modems, cellular modems, fiber optics, and ethernet communications. 

  3. Clear Messaging: Pre-recorded siren tones and messages, live voice, and real-time TTS messages can be utilized depending on a community’s requirements. Multilingual messages can be deployed in areas where multiple languages are spoken. The messages alert the public within the siren's coverage area to take immediate action and seek shelter.