10cm temperature
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I repeat my suggestion/request for ground temperature at 10cm aka grass temperature. My potato plants suffered from ground frost while temp at 1m was 4°C.
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@FransBetsy
Hi,
Windy visualizes data from weather models and I am not sure that these models provide a temperature prediction at 10cm above ground surface. Then if you consider the resolution of the models that Windy shows in your region, a 10cm-temperature will not be very reliable when the resolution is about 10km and the risk of frost depends on topography and other local factors.Windy gives you the possibility to make your own assessment for the risk of frost. This risk depends on:
Temperature: air temperature at 2m
Humidity: air with high content of water vapor prevents quick night cooling, because it reduces the infrared radiation from the ground.
Dew point: it is the temperature at which the dew forms. The lower this temperature is predicted, the higher is the cooling expected. If this temperature is negative, the risk of freezing will be really high.
Clouds: cloudiness reduces the infrared radiation from the ground and thus the risk of frost. Clear sky at night increases the risk of frost.
Cloud height: low clouds are more efficient to reduce to risk of frost than high clouds.
Wind: the wind blows the cold air near the soil, mix it with the layers above and decreases the risk of frost.All these parameters are provided by Windy, as a layer and also in the Meteogram for a given location.
So you can try to make your own assessment using these parameters. -
I idefix37 referenced this topic on