Europe: High temperatures forecast to persist across eastern regions through at least Aug. 27

Event

High temperatures are forecast to persist across Czech Republic, Poland, and Slovakia, through at least Aug. 27. Maximum temperatures of around 33-34 C (91-93 F) are forecast across much of the region, with localized higher temperatures possible. The oppressive heat in Poland will occasionally be punctuated by thunderstorms and showers Aug. 25-27.

As of early Aug. 25, the various meteorological services for the respective countries have issued the following warnings across the region:

• Orange high-temperature warnings (the middle level on a three-tier scale): southeastern Czech Republic through early Aug. 26, southeastern Poland through Aug. 27, western Slovakia Aug. 25, and southern Slovakia through Aug. 27.

• Orange thunderstorm warnings: southern Poland Aug. 25 and southeastern Poland Aug. 26-27.

• Yellow high-temperature warnings: across most of the rest of the affected area.

• Yellow thunderstorm warnings: most of the rest of Poland through Aug. 27.

Officials could update and 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 region. Heatwaves also threaten 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

Meteo Alarm
Czech Hydrometeorological Institute
Poland Institute of Meteorology and Water Management
Slovak Hydrometeorological Institute