Greece is bracing for a severe weather system expected to bring heavy rain, thunderstorms and powerful winds starting Tuesday evening, with conditions worsening significantly by Wednesday.

Meteorologists warn that the storm could trigger localized flooding, while wind gusts may reach up to 10 Beaufort, posing risks to travel and infrastructure.

Storm to intensify midweek

The first signs of the weather system will appear Tuesday afternoon into the evening, with localized rainfall gradually spreading across western, northern and eastern Aegean regions.

Conditions are expected to deteriorate rapidly overnight, as the system strengthens.

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According to meteorologist Giannis Kallianos, Wednesday, April 1, will be the most severe day, when the low-pressure system reaches peak intensity.

High risk of flooding and storms

Forecasts indicate very heavy rainfall and strong thunderstorms, with a heightened risk of flooding in several areas.

In some regions, rainfall totals could exceed 100 millimeters within 24 hours, increasing the likelihood of widespread disruption.

Storm activity may also include hail, particularly in areas expected to experience the most intense weather.

Regions most at risk

The strongest and most persistent weather is expected to affect:

  • Eastern and southern Peloponnese
  • Central and eastern mainland Greece
  • Attica, Evia and the Sporades islands
  • Thessaly (central Greece)
  • Central and eastern Macedonia
  • Parts of the eastern, northeastern and southeastern Aegean

Authorities warn that even areas outside these zones may still experience significant instability and hazardous conditions.

Powerful winds add to impact

Alongside heavy rain, strong to gale-force winds will impact much of the country.

Southerly winds will initially dominate, before shifting to northerly directions in northern regions, especially over the northern Aegean.

Wind speeds are expected to reach 8 to 9 Beaufort, with gusts locally exceeding 10 Beaufort.

Conditions to ease gradually

The severe weather is expected to persist into Friday, although with reduced intensity compared to Wednesday.

Despite its strength, experts note that the system remains within the range of typical winter and early spring weather patterns, while still urging heightened caution due to its intensity and organization.