Poland: Heatwave forecast across the country through at least Sept. 6

Forecast models indicate that high temperatures will persist across much of Poland through at least Sept. 6. Maximum temperatures of around 27-31 C (81-88 F) are forecast across much of the country over the coming days. As of Sept. 3, the Polish Institute of Meteorology and Water Management (IMGW) has issued orange heat warnings (the middle level on a three-tier scale) across Greater Poland, Kuyavian-Pomeranian, Lubusz, and Opole provinces, much of Lower Silesian and West Pomeranian provinces, and parts of central and southern Pomeranian and central and western Silesian provinces. Yellow heat warnings are in place across Holy Cross, Lodz. and Subcarpathian provinces, the rest of Lower Silesian and Silesian provinces, much of Lesser Poland, Masovian and Warmian-Masurian provinces, and parts of southern and western Lublin and western Podlaskie provinces. Authorities will likely issue new alerts or update/rescind existing advisories as weather conditions change over the coming days.

The extended period of oppressive heat and dry conditions may produce ideal circumstances for wildfire growth throughout 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.

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.