The annual chance of a heat wave that is just as extreme as last week is 1 to 2 percent, reports the KNMI Friday on the basis of a study by World Weather Attribution. "Even in today's warmer climate, last week's heat wave was extreme," the KNMI writes.
According to the KNMI, the heat wave was a "coincidence", which meant that warm air from the Sahara to Western Europe could be carried through a strong wind in the upper air.
The KNMI concludes that around 1900 temperatures of around 40 degrees were "virtually impossible". "Heat waves have become about 3 degrees warmer since 1900 and the value of this year is above the upper limit of the climate of around 1900," said the weather institute.
Because the earth is still warming up, the chance of extreme temperatures and heat waves is increased.
83When do we officially speak of a heat wave?
40.7 degrees in Gilzen-Rijen
Last week's heat wave caused the more than 75-year-old heat record to be broken in the Netherlands. In several places and on several days it became warmer than the 38.6 degrees recorded in 1944 in Warnsveld.
In the end, 40.7 degrees was the highest temperature last week. That temperature was noted on Thursday in Gilzen-Rijen in Brabant.