Weather Alerts via SMS (OpenWeather + Twilio)

This n8n workflow triggers every 6 hours via a Cron node to fetch current weather and 24-hour forecast data from the OpenWeather API. It retrieves key metrics including temperature, precipitation, wind speed, and weather descriptions for a specified location.

A Code node then analyzes the data to detect severe conditions such as extreme heat (≥95°F), extreme cold (≤20°F), thunderstorms, tornadoes, rain/snow, or high winds (≥25 mph), including checks for the next 24 hours. If no alerts are triggered, the workflow ends; otherwise, it proceeds to format a concise SMS message with current conditions, alerts, and a 3-hour forecast preview.

The formatted alert is sent via Twilio to one or multiple phone numbers, ensuring timely notifications for teams, families, or field workers. Benefits include real-time safety updates, customizable thresholds, and easy scalability for multiple locations. Ideal use cases: travel monitoring, outdoor event planning, agriculture, or emergency response in regions prone to severe weather.