Scorching temperatures in Greece and Turkey.

The region encompassing southeastern Europe. - Scorching temperatures in Greece and Turkey.

Hot air masses are making their way east, reaching North Africa and the central Mediterranean. In Greece and Turkey, locals can expect temps as high as 45 degrees from Tuesday through Friday. The height of the heatwave is expected on Wednesday and Thursday, with a cooling-off period by the weekend, according to the Greek weather agency.

Some schools in Greece will close early, at 11:30 am, while others may suspend classes altogether. The cities in charge of these decisions are local municipalities. The Labor Ministry encourages those in public and private sectors to work remotely, if possible.

The Greek Red Cross has placed water distribution stations at Syntagma Square and the Acropolis, staffed by volunteers.

In anticipation of the heat, here's what to do:

1. Stay indoors during the hottest parts of the day (midday).
2. Drink lots of water.
3. Avoid alcohol.
4. Eat light meals.
5. Abstain from intense outdoor activities.

Cities and municipalities in Greece are opening air-conditioned buildings to offer shelter to the homeless, needy, and those without AC in their homes.

A warning from the Turkish weather service reveals the heatwave will reach up to 45-degree temperatures, especially in the western part of the country. The elderly, children, and chronically ill are the most vulnerable and should avoid staying outside between 11:00 am and 4:00 pm.

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