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Hazard category 2 (moderate hazard)

Possible impactsThe ground may freeze and plants may suffer frost damage.
Description of measurement and prognostic values

A distinction is made between ‘light to moderate’ and ‘heavy’ ground frost:

  • Light to moderate: at temperatures between 0 and -4 degrees (at a height of 5 cm above ground level)
  • Heavy: at temperatures below -4 degrees (at a height of 5 cm above ground level)

Recommendations for action

Recommendations during frost

Notes

Only hazard category 2 exists.

Ground frost warnings are only issued between 15 March and 31 October and for low-lying areas (below 600 m above sea level).

Ground frost also occurs in the winter but since this is not unusual for the season, warnings are not issued during this period.