HOW DOES WEATHER MONITORING TRIGGER A GRITTING VISIT?

Weather monitoring helps winter maintenance teams decide when precautionary treatment may be required. Rather than relying only on the current air temperature, forecasts can be assessed against the agreed trigger criteria for each site.

What information matters?

• Forecast surface and air temperatures
• Rain, dew and residual moisture
• Frost risk
• Snowfall forecasts
• Timing of temperature changes
• Local site conditions and known cold spots

From forecast to treatment decision

A winter plan should define when forecast conditions warrant action. When the relevant trigger is met, treatment can be scheduled around the expected conditions and the site’s operating requirements.

Why site knowledge still matters

Forecast data is only part of the picture. Shaded areas, exposed locations, bridges, ramps and different surface materials may behave differently, so the treatment plan should reflect local risks.

Read what temperature should trigger gritting and explore our winter maintenance services.