THE HAGUE, Netherlands—A powerful summer storm lashed the Netherlands and parts of Germany on Wednesday, killing at least two people, blowing trees onto houses and forcing one of Europe’s busiest airports to cancel or delay hundreds of flights.
The Royal Netherlands Meteorological Institute issued its highest-level alert in three provinces as Storm Poly hit the country with heavy rain and powerful winds. One gust, on the coast west of Amsterdam, was recorded at just over 145 kilometers per hour (90 mph), the institute said.
The alert level was scaled back early in the afternoon as the storm headed northeast and weakened….