Central Europe: High temperatures forecast to persist across Austria, southern Germany, and Switzerland through at least Aug. 22

Event

High temperatures are forecast across parts of central Europe through at least Aug. 22. The affected area includes Austria, central Germany, and much of Switzerland. High temperatures are expected in parts of the region over the coming days, and will become more widespread and intense around Aug. 18-20, when highs of around 35-37 C (95-99 F) are possible.

As of Aug, 16, the Austrian Central Institution for Meteorology and Geodynamics (ZAMG) has issued yellow heat warnings (the lowest level on a three-tier scale) across eastern and western regions Aug. 16, northwestern, southeastern, and western regions Aug. 17, and northwestern, southeastern, southern, and western regions Aug. 18. Orange heat warnings are in place across eastern Austria and isolated pockets of northern, southern, and western Austria Aug. 19-20 and yellow heat warnings are in place across the rest of the country.

The German Meteorological Service (DWD) has issued extreme heat warnings (the highest level on a two-tier scale) across parts of eastern, southeastern, and far southern Baden-Wurttemberg State Aug. 16 and heat warnings across much of southern Germany Aug. 16-17. The service has forecast a further rise in temperatures to around 30-35 C (86-95 F) across the southern half of the country Aug. 18-19.

Meteo Swiss has issued orange heatwave warnings (the middle levels on a three-tier scale) for central and southern Ticino and southwestern Grissons cantons Aug. 16-21 and advanced notice orange heatwave warnings for eastern, northeastern, and southeastern regions Aug, 18-22 and northern and north-central regions Aug. 19-22.

Officials could update and possibly extend the coverage of weather alerts over the coming days.

The high temperatures may result in increased energy and water demand and a heightened risk of heat-related illnesses, such as heat exhaustion and heat stroke.

Hazardous Conditions
The extended period of oppressive heat and dry conditions may produce ideal circumstances for wildfire growth throughout the affected area. 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.

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 stress vehicles, making tire blowouts more common. Major flight disruptions are unlikely, 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 heat waves, 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 bottled water or water that 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.

Resources

Austria Central Institution for Meteorology and Geodynamics (ZAMG)
German Meteorological Service (DWD)
MeteoSwiss