The recent hot weather across much of Poland, Slovakia, Hungary and Romania will come to an end Tuesday as a cold front moving in from the west will become stationary from the Baltic states southward through eastern Poland and into Romania and western Bulgaria.
Recent record high temperatures were set across Latvia, Lithuania and Belarus. Included in these records was Ventspils, Latvia, which reached 100 degrees on Monday. This is the highest official temperature ever recorded in the country.
This front will knock temperatures down by 5-8 C (10-15 F) across the region. The arriving air mass will feel quite refreshing to many after the recent hot stretch, but it comes with a cost.
Thunderstorms will be numerous from Tuesday night through Thursday and will likely travel over the same areas, which will enhance the chance for flash flooding from any heavier storms.
The areas with the greatest threat for flash flooding into Tuesday night include eastern Poland and far western parts of Belarus and Ukraine.
Moving into Wednesday and Thursday, the front will remain stalled over the area and will continue to fuel daily thunderstorms.
On Wednesday, the threat for flash flooding will stretch from western Bulgaria and eastern Serbia northward through eastern Hungary and western Romania. The threat will also exist from Poland and western Ukraine northward through western Lithuania and Latvia.
The risk for flooding will increase daily as the storms will likely travel over areas that received rainfall the previous day.
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