Climate change seems to have led to such warmer temperatures more frequently that Norwegian state meteorologists will be testing out a new definition of a local “heat wave” this summer. It will need to be warmer for a longer period to qualify.
Norwegians have previously declared a heat wave as being temperatures of 28C (around 84F) or higher over a period of three days.
Now, reports state broadcaster NRK, Norwegians will only be able to claim they’re sweltering in a local heatwave if thermometers hit more than 28C during the day for a period of five days or more. Nighttime temperatures, meanwhile, will need to stay above 16C (around 62F).
“We’re working on a way of warning about any danger from heat, and then it will need to be sufficiently warm that it’s uncomfortable,” Helga Tajet, a climate researcher at the state Meteorological Institute, told NRK.