14 Jul 2022 | 09:57 AM UTC
Switzerland: Heatwave forecast over much of the country through at least July 20
Heatwave forecast over most of Switzerland through at least July 20. Transport and power disruptions possible.
Event
Forecast models indicate that a heatwave will persist over much of Switzerland through at least July 20. High temperatures are expected to be felt on the southern side of the Alps from July 14 and will rise across much of the country over the coming days. Temperatures of 31-36 C (88-97 F) are expected in most regions July 15-17. Temperatures are expected to peak July 19, when they may reach as high as 41 C (106 F) around Sion and 38-40 C (100-104 F) in many other parts of the country.
As of July 14, Meteo Swiss has issued orange heatwave warnings across parts of central and southern Ticino and southwestern Grisons cantons. Yellow heatwave warnings have been issued across much of northern, central, and eastern Switzerland. Officials could upgrade or expand the alerts over the coming days.
Hazardous Conditions
The extended period of oppressive heat and dry conditions may produce ideal circumstances for additional wildfire growth throughout the region. 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.
