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Air Quality Alert

Heat to fuel severe thunderstorms across northern Balkans on Sunday

By Kristina Pydynowski, AccuWeather senior meteorologist
By Adam Douty, AccuWeather senior meteorologist
July 07, 2019, 10:39:11 AM EDT

Relief from the heat building back into southern Europe is on the horizon, but will come at the expense of potentially damaging thunderstorms on Sunday.

The surge of heat and humidity will help fuel severe thunderstorms along the corridor from northeastern Italy and Croatia to Romania on Sunday.

This includes Udine, Italy; Zagreb, Croatia; Sarajevo, Bosnia and Herzegovina; Belgrade, Serbia; and Timisoara and Cluj-Napoca, Romania. Latest indications keep the severe thunderstorms north of Bucharest.

While not to the extreme levels as what was recorded in late June, the heat will still send temperatures soaring into the lower 30s C (upper 80s and lower 90s F) in many areas across the Balkans on Sunday. The hottest locations in eastern Serbia and southern Romania endure highs of 35-37 C (middle to upper 90s F).

Europe 7/6

While residents and motorists will have to remain alert for lightning and downpour dangers during the morning, most of the strongest thunderstorms will erupt during the afternoon and evening hours.

Even if a thunderstorm does not produce damage, the risk of being struck by lightning is present as soon as thunder is heard.

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"When compared to Saturday, there can be more numerous severe thunderstorms on Sunday," said AccuWeather Meteorologist Tyler Roys.

Once again, damaging winds, hail and flooding downpours will pose dangers to those in the path of the violent thunderstorms.

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"The thunderstorms this weekend will knock down temperatures for early next week," Roys stated.

Showers and thunderstorms will focus on more of southern Europe, as well as eastern Ukraine on Monday.

"While the risk will not be as high as on Sunday, a few thunderstorms can still turn severe on Monday," according to Roys.

Another round of severe weather may unfold from southern France to northern Italy, Bosnia and Herzegovina on Tuesday.

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