The cumulative effect of fire-meteorological conditions (hot and dry weather) on the ease of ignition of forest fuels results in flammability being high or very high in almost the whole of the country (Figure 1), already from the start (Saturday 19.08.2023) of of a new heat wave that is expected to affect us until at least Friday 25.08.2023.

This results from the analysis of data from the automatic weather stations of the METEO unit of the National Observatory of Athens (EAA), which are used for the daily assessment of fire-meteorological risk and which take into account the cumulative effect of meteorological conditions on forest fuels and their expected behavior of forest fires.

The very hot and dry conditions that are already affecting our country and which will persist until Friday 25.08.2023, combined with the very high flammability of forest fuels and locally strong winds, are expected to form particularly dangerous fire-meteorological conditions , capable of making it difficult to control any forest fires that occur. In particular and based on the latest available forecast data of the FLAME Pyrometeorological Team of the METEO/EAA unit, very high to extreme risk with Hot-Dry-Windy type weather is expected on Sunday and Monday, 20 -21.08.2023 in a large part of mainland Greece and the islands of the N. Aegean.

In more detail, on Sunday 20.08.2023 (Figure 2) we expect the highest risk for wind-driven forest fires in Thrace, Thassos, Samothraki, Lemnos, A. Lesvos, K. and N. Evia, Attica, Corinthia, Argolis and places in Thessaly, Fthiotida, Boeotia and Aetoloakarnania.

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For Monday 21.08.2023 (Figure 3) we expect further deterioration of the fire-meteorological conditions and even extreme danger for wind-driven forest fires in Thrace, North and North Macedonia, Thassos, Samothraki, Lemnos, Lesbos, Chios, Evia, Attica, Boeotia, Fthiotida, Phocis, Corinthia, Argolis, Laconia, Ilia and in places in Thessaly, Arcadia, Achaia, Messinia, Aetoloakarnania, and Lefkada.

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It is noted that in the above geographic zones, special attention should be paid to areas where the winds will “align” with the topography and forest fuels (eg, when the wind blows perpendicular to the slope of a thickly vegetated mountain mass), maximizing the extreme fire behavior potential.

Finally, the forecast data currently available indicates a continuation of the Hot-Dry-Windy weather pattern until Wednesday 23.08.2023.