The editorial team advises you
The explanation for this unprecedented phenomenon lies, according to Météo France, in the combination of several factors, as André Cachard, forecaster, points out: “Since Saturday, a depression has been located to the north of the British Isles. It favored the arrival of a south wind, in France, from Spain and the Sahara. And for the Pyrénées-Atlantiques, a third factor was taken into account: the Foehn effect.”
28 degrees in Navarrenx, around noon
Result: unprecedented readings for the end of November. On average, during the night from Sunday to Monday, in the department, the temperature was between 23 and 26 degrees, between 3 and 6 a.m. With even 26.3 degrees recorded at the Pau station, at 4:13 a.m., a record for this period, or even 26.9 degrees at Lasseube, at 3:55 a.m.
We will also note this Sunday the 28 degrees (!) in Navarrenx, at 12:19 p.m. “On average, we were around fifteen degrees above normal” indicates the forecaster, who adds: “the southerly winds and the effect of the foehn do not explain everything. We can also see the impact of global warming.”
The editorial team advises you
The phenomenon ended early this Monday morning, with the action of a wind now coming from the west. “We went from 23/24 degrees to 13/14, from 9 a.m.”.
Winds at 197 km/h
Also note the episode of violent winds, particularly in the mountains, during the same period. With 197 km/h recorded in Iraty, 170 in Lées-Athas, 120 in Bustince (monthly record broken, the previous one dating from November 20, 2007 with 94 km/h). Here too, if the wind still blows a little on the heights, the episode is considered to be over.
Finally, if temperatures will still remain “a little” above normal, in the coming days, the thermometer will no longer panic, with maximums between 16 and 19 degrees between Tuesday and Thursday, then 15 to 18 on Friday.
