22 Aug 2023 | 09:17 AM UTC
Greece: High temperatures forecast to persist across much of the country through at least Aug. 24 /update 1
High temperatures forecast to persist across most of Greece through at least Aug. 24. Transport and utility disruptions possible.
Event
Forecast models indicate that high temperatures will persist across much of Greece through at least Aug. 24. Maximum temperatures of around 37-39 C (99-102 F) are forecast across mainland regions and 33-35 C (91-95 F) in island regions Aug. 22. The heat is expected to persist across most of the country Aug. 23-24, before a slight drop in temperatures accompanied by sporadic rainfall and thunderstorms is expected Aug. 25-26. High temperatures in recent days have contributed to dozens of wildfires breaking out across parts of the country; further wildfire activity is likely over the coming days.
As of Aug. 22, the Hellenic National Meteorological Service has issued the following warnings across the country:
Orange high-temperature warnings (the middle level on a three-tier scale): North East Aegean Islands and Ionian Islands regions.
Yellow high-temperature warnings: Central and East Macedonia, Crete, Cyclades Islands, Dodecanese Islands, East and West Peloponnese, East Sterea and Evia, Epirus, Ionian Islands, Thessaly, Thrace, and West Sterea regions.
Authorities will likely issue new alerts or update/rescind existing advisories as weather conditions change over the coming days.
Hazardous Conditions
The extended period of oppressive heat and dry conditions may produce ideal circumstances for wildfire growth throughout many parts of the country. Heatwaves also pose a threat to vulnerable groups - such as the elderly, children, pregnant women, and those with respiratory illnesses - due to the increased possibility of heat stroke or heat exhaustion during prolonged exposure to high temperatures. These health risks could also extend to relatively healthy individuals during significant heatwave events. In addition to significantly impacting athletes and those who work outdoors, high temperatures can cause problems for people using mass transit. The lack of air conditioning and cramped vehicles during rush hour may lead to some passengers being hospitalized for dehydration.
Transport and Utilities
Very high temperatures may warp rail tracks and force passenger and freight trains to operate at reduced speeds. Road surface damage is also possible, and overheated vehicles may worsen traffic problems in urban areas where congestion is already a problem. Commercial trucking disruptions might occur, as very high temperatures put more stress on vehicles, making tire blowouts more common. Major flight disruptions are unlikely at regional airports, but general aviation disruptions are possible, and some airfreight carriers could reduce cargo loads. High temperatures could lead to an increased demand for electricity, which might trigger localized brownouts or blackouts, exacerbating hazardous conditions when air conditioning is no longer possible.
Advice
Monitor local media for weather updates and related advisories. During heatwaves, remain indoors in air conditioning when possible. If outdoor activities are necessary, frequently rest in shaded areas; avoid activity during the hottest times of the day. Stay well-hydrated by drinking plenty of fluids. Avoid alcoholic beverages, which are dehydrating; drink water that is bottled or has been boiled. Wear loose-fitting, light-colored clothing. Cotton fabrics are more cooling than synthetics. Promptly seek medical attention if signs of heat exhaustion or heat stroke develop. Charge battery-powered devices in case prolonged electricity outages occur.
