Croatia: Heatwave forecast across western regions through at least Aug. 9

Forecast models indicate that high temperatures will persist across parts of western Croatia along the Adriatic coastline through at least Aug. 9. The high temperatures could spark an increase in wildfire activity across the region, as well as pose a health threat to the general public.

As of early Aug. 8, the State Hydrometeorological Institute (DHMZ) has issued the following heat-related weather warnings:

• Orange high-temperature warnings (the middle level on a three-tier scale): Dubrovnik, Rijeka, and Split regions Aug. 8 as well as Dubrovnik, Knin, Rijeka, and Split regions Aug. 9; maximum temperatures of more than 34 C (93 F) and minimum temperatures of more than 26 C (79 F) are forecast.

• Yellow high-temperature and strong wind warnings: the rest of the affected area Aug. 8-9.

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

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.

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.