About Ride Weather

Ride Weather tells a ride leader whether to run a specific route at a specific start time, and what to warn the group about. It is a decision tool, not a forecast: the output is a verdict and a short briefing, with the data underneath as evidence.

How it works

• Route-aware, time-aware. The forecast is read where the group will be at the time they will be there, using a pace that slows on climbs.
• Rules first, words second. A fixed set of rules scores every 15-minute start time and applies hard limits (a red warning is always “Don't ride”). An AI only writes the explanation from that result, and it cannot change it.
• Hazards on the line. Ice by altitude, official warnings, strong wind on exposed roads, and closures where a feed is connected, pinned to the kilometre.
• Honest about gaps. If a source can't be reached, the report says so. It never says “clear” without having looked.

Limits you should know

• Height correction uses a standard lapse rate (0.65 °C per 100 m). Exposed ground is estimated from elevation, not land cover.
• Road surface temperature stations and most council road closures are not connected yet.
• UK warning areas are matched with coarse boxes that over-cover, so you may see a warning that doesn't quite reach you. Read the official page.

Guidance only. The ride leader decides; check conditions on the day.