Aletsch glacier melting at record rate

I think I can say without a shadow of a doubt that the great Aletsch glacier in the Alps has been melting at record rates over the last couple of days. I say this because temperatures from the Jungfraujoch observatory, the top of Europe at 3,572 metres above sea level (11,332 feet), are 10.5°C above freezing at the moment, and has been above freezing since sunrise on Sunday morning. I can’t say if these temperatures are in themselves at record levels, but they can’t be far off.

Data courtesy of OGIMET

The mean maximum temperature for June according to MeteoSwiss is +0.8°C, so today’s temperatures are over 9°C higher than the 1981-2010 LTA, and as the heatwave intensifies in the coming days, temperatures at the observatory could get even higher.

Courtesy of Wikipedia

The midnight ascent from nearby Payerne has a freezing level of around 590 hPa which is 15,440 feet and very close to the height of Mont Blanc, the highest mountain in the Alps, at 15,781 feet.

Data courtesy of OGIMET

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