The Florida Automated Weather Network (FAWN) uses Txtsignal’s mass text messaging service to deliver freeze alerts to farmers.
How FAWN Works
FAWN operates “a University of Florida extension network of automated weather stations” across 42 locations statewide to help growers protect cold-sensitive crops. When temperatures threaten to drop below critical thresholds, the system sends four text notifications per freeze event alerting farmers about when to activate irrigation systems.
The Science Behind It
The freeze alert mechanism works because “running sprinklers during cold nights causes a layer of ice to form over plant surfaces, which insulates the plants.” This protects crops that would otherwise be damaged by freezing temperatures.
Real Savings
According to the project manager, growers “can save an average of two hours of water-use per cold event” using these targeted alerts, reducing typical watering from 8-10 hours to 4-6 hours.
Why SMS
SMS notifications work reliably even in remote field locations with poor internet connectivity, unlike app-based alternatives. For agricultural operations, this reliability is essential.