The wind direction is relative to the dome direction. If there is no wind data,
everything will be at the same point, which is the dome encoder data.
The polar plot is a work in progress, degrees indicated are accurate and NOT
isomorphic with the compass direction - please rotate and flip E/W mentally.
High/fluctuating rain rates may indicate ice forming and melting on
the precipitation sensor. Please verify any precipitation with other
summit weather information/sensors. This is especially likely if the
wind sensor indicates failure due to obscuration (wind speeds = -1).