Parameter
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Description
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Precipitation
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- Shallow stratus (radiation fog): generally no precipitation.
- Stratus with larger vertical extent (especially advection fog): drizzle, in winter light snowfall or super cooled drizzle.
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Temperature
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- St/Fog covered areas in winter generally warmer, in summer cooler than adjacent cloud-free areas.
- Reduced diurnal variation of temperature within cloudy areas.
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Wind (incl. gusts)
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- For Radiation Fog light or calm wind conditions, for Advection Fog moderate, even slightly gusty winds.
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Other relevant information
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- Visibility in Fog below 1000 m. Fluctuations in visibility, when cloud base temporarily lifted or lowered.
- Icing possible within the super cooled cloud conditions. The most probable location for icing near the cloud top, where droplet
size is the largest.
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