Extreme warning for high temperatures issued for Prague on Sunday

Take caution while traveling outdoors in the Czech capital this afternoon: a heat warning with an extreme degree of danger has been issued by the Czech Hydrometeorological Institute for Prague and other areas of Central Bohemia and the Ústí nad Labem regions on Sunday afternoon from noon through 10:00 p.m.

The warning has been elevated from yesterday's high degree of danger. Prague and surrounding areas are forecast to see unusually high temperatures of up to 38 degrees Celsius this afternoon, which is why the country's weather authority has issued the strongest degree of danger for these areas.

A warning with a high degree of danger for extreme heat remains in effect for most other areas of Bohemia today, while a warning with a low degree of danger is in effect for most areas of Moravia. A risk for fires is also in effect today due to the high temperatures, with a high degree of danger for Prague and surrounding areas.

"Especially in the western half of Bohemia, temperatures will exceed 34 degrees [on Sunday]; in the Central Bohemian and Ústí nad Labem region, temperatures will exceed 37 degrees Celsius," the CHMI writes on social media. 

"Therefore, the warning has been elevated to an extreme degree of danger [in these areas]."

Those in affected areas are advised to be aware of the high temperatures today, reduce physical activity, and avoid direct sunlight during the afternoon hours. The CHMI recommends drinking plenty of water, and avoiding sweetened drinks. Those in urban areas will be particularly affected.

"On Sunday, we expect up to 38 degrees Celsius, but this is the air temperature while in the shade," the CHMI  writes. "In direct sunlight in urban areas, higher temperatures will be measured."

On railways, including tram tracks in Prague, there is a risk of travels delays as rails may expand and buckle or break due to the high temperatures.

Because of the risk of fires, the CHMI advises people not to start open fires or use portable stoves in outdoor areas, and take extra caution when disposing of cigarette butts. Farmers are advised to actively patrol their crops due to the elevated risk.

The high temperatures aren't forecast to last into next week. On Monday, a cold front will cross into the Czech Republic from Germany, with the potential for heavy thunderstorms. The cold front will also reduce the risk of fires.