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Severe thunderstorm warning

Severe thunderstorm warnings contains warnings on thunder gusts.

Strong wind gusts may occur in connection with thunderstorms, causing a lot of damage. Severe thunderstorm warnings contains warnings on thunder gusts. There are not any lightning warnings, but in emergency warnings they are.

Photo: T. Niskanen
 

There are three different awareness levels for thunder gusts.

The warning is issued when the wind in thunder gusts is

  • more than 15 m/s (yellow warning)
  • more than 25 m/s (orange warning)
  • more than 30 m/s (red warning).

Warnings on thunder gusts are issued max. five days in advance.

For more information about other wind warnings, see page on wind warnings.

 

 

5.7.2017