23 Jun 2022 | 10:30 AM UTC
Greece: Heatwave forecast over much of the country through at least June 27
Heatwave forecast over most of Greece through at least June 27. Transport and utility disruptions possible.
Event
Forecast models indicate that a heatwave will persist across much of Greece through at least June 27. Temperatures are expected to peak June 23-24, before dropping slightly June 25-26. However, the slight lull is likely to be temporary, with heat building again June 26-27. The city of Athens has opened three public cooling shelters that are open to the public to provide some relief from the heat.
The Hellenic National Meteorological Service has issued an Extraordinary Weather Deterioration Bulletin due to the rising temperatures. The bulletin warns that maximum temperatures of 36-39 C (97-102 F) are likely across mainland Greece June 23, with localized highs of 40-41 C (104-106 F) in Thessaly, eastern Sterea, and central Macedonia regions. Temperatures on the mainland are expected to drop by a few degrees June 24-25, before heat builds again from the west June 26. For the islands and coastal areas of the country, highs of 33-35 C (91-95 F) are expected June 23-24, with the exception of the Cyclades Islands, where temperatures are not expected to exceed 32 C (90 F). Thunderstorms accompanied by strong wind gusts are possible in parts of Thrace and Macedonia regions June 23.
As of June 23, authorities have issued the following weather warnings across Italy:
Orange heatwave warnings: Thessaly and East Sterea and Evia regions.
Orange thunderstorm warnings: Thrace Region.
Yellow heatwave warnings: Across most of the rest of Greece not under orange warnings.
Yellow thunderstorm warnings: Central, East, and West Macedonia regions
Yellow heavy rainfall warnings: Central, East, and West Macedonia and Thrace 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 engines, 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.
