Weather Report..................

It's a beautiful day, with a gentle east north east breeze and a 22 degree high. ☀️ ☀️ ☀️
 
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Cool 24 degrees, gentle Northerly breeze. Whispy clouds.
Comfortable breakfast, under the Olive tree.
Yellow Alert for high temperatures.
31max forecast.
We'll take that.
 
The overcast start has turned into light showers, but light enough to continue working out of doors in the warm 23 degrees. ☁️ 🌨️ 🌥️
 
Last night started with a thunderstorm somewhere towards 'Airborne' but it quickly died away.

Today should remain dry, with sunny intervals and a moderate breeze. Will look skywards for interesting aircraft. 🌥️ 🌥️ 🌥️
 
A little cooler.
Whispy clouds allow us to be in the sunshine.
Gentle Northerly breezes.
Strangely enough, we're seeing vapour trails from planes passing over at 34,000 to 40, 000 feet.
Not seen them for ages.
Any explanation ?
 
A little cooler.
Whispy clouds allow us to be in the sunshine.
Gentle Northerly breezes.
Strangely enough, we're seeing vapour trails from planes passing over at 34,000 to 40, 000 feet.
Not seen them for ages.
Any explanation ?
They depend on the humidity of the air and are usually seen where air masses meet.
Explanation of what they are;

”Aeroplane jet engines produce water vapour as a bi-product of burning fuel. Above 20,000 feet, the air surrounding the aircraft is well below freezing so it cools down the water vapour coming out of the back of the engines. This causes the water vapour to condense rapidly, and then freeze. Tiny particles from the engine, known as condensation nuclei, act as a starting point for condensation to take place, leaving thin trails of ice crystals behind the aeroplane's engines.

What happens next depends on how dry or how humid the air is. If the air is very dry, the ice crystals will sublime (change phase directly from solid to gas) and become invisible. If the air is humid, the water droplets or ice crystals will stay where they are, often spreading out, leaving a fluffy trail where the aircraft has passed. Trails may last for many hours leaving the sky criss-crossed with lines, and mixing with cirrus cloud.”
 
Thanks, Bill.
Good sign that there's some humidity around, somewhere.
It's been bone dry with air flows over the Arid Northern hills, since Easter . We lost the benefits of melting snow on the Spanish Sierras about the same time.
Nothing to do with the shifting Jet stream, then . ?
So much for the " cooler ", forecast.
We're inside, with the shutters closed and a fan blasting away.
 
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