The SendScore is a calculated metric (0-100%) designed to estimate the climbing suitability of a crag based on weather conditions. It is not a simple average, but a product of several factors. This means if any single critical factor is "bad" (e.g., heavy rain), the entire score drops significantly, potentially to zero.
Ideal: ~15°C
Good Range: 10°C - 20°C
Scores drop as temperatures get too cold (<0°C) or too hot (>30°C).
Ideal:
<50%
Lower humidity is always better for friction. Scores decrease significantly as humidity rises
above 50%.
Ideal: 0mm
Any rain during the climbing window is penalized heavily. >5mm of rain results in a score of 0.
Ideal: 10-20 km/h
Moderate wind helps dry the rock and improves friction. No wind is okay, but strong wind (>40 km/h)
reduces the score.
Ideal: Dry
Wet ground can seep moisture into the rock. We measure soil moisture at 0-1cm depth.
Risk: Soil Temp < Dew Point
If the ground is colder than the dew point, moisture condenses on the surface. This is a "silent
killer" for friction.
We look at rain over the last 3 days. Recent rain is weighted more heavily than rain 3 days ago. This accounts for the rock's drying time.
SendScore = (Temp_Factor × Humidity_Factor × Rain_Factor × Wind_Factor × Soil_Moisture_Factor × Condensation_Factor × Recent_Rain_Factor) × 100
