About CodeRed Weather Alerts

Automated Weather Alerts

Without any human intervention required, the CodeRED Weather Warning severe weather alert system delivers advanced warning of severe weather as soon as a bulletin is issued by the National Weather Service. The system delivers voice calls, text messages and emails to subscribed users within the direct path of the storm. Messages provide residents extra time to prepare that could save lives. Types of alerts include tornado warnings, severe thunderstorm warnings, flash flood warnings, tsunami warnings and winter storm warnings.

Polygon Methodology

CodeRED Weather Warning interprets bulletins issued by the National Weather Service to determine the severity of the warning and the exact areas affected. The system then creates a calling database of all CodeRED Weather Warning subscribers within the projected path of severe weather. Instead of traditional county-based warnings, the system delivers targeted alerts to only those who may be affected, increasing relevance and reducing false alarm.


CodeRED Weather Warning is automated and requires no human intervention. Notifications are delivered so quickly they often arrive prior to any other public notifications, including television or weather radio broadcasts. CodeRED Weather Warning technology has been highlighted on national media outlets for its effectiveness in early alerting.

Enroll to receive Weather Alerts

The home page of the CodeRED Community Notification Enrollment page where you can register online is

If you can not register online, you can call The Concord Police Department at 978-318-3400 and we will assist you with the registration.