Pressure dropping
Rain from the west
Due to fall
Maybe just April showers
We need it
We have fires burning
In the countryside
Dry March and April
And high pressure
Blue skies are lovely
Sunshine is great
But sometimes the rain
Must fall.
Rain due
Tag: High pressure
Sunset
It’s cloudy again tonight, any sunlight has been stifled by cloud. I’m looking forward to a good, colourful sunset. But if we get that it means we need high pressure and less clouds. That means the sky will clear and heat will be lost so we will get colder weather and frosts. At the moment we are getting gusty winds from the south and scattered heavy showers. It’s knocking the old leaves off the trees. I hope it does clear up, apparently the Taurid meteor shower is due.
Anyway when did this blog turn into a weather forecast? Hmm, must think of something else x
Autumn sky
The nights are ‘drawing in’, Autumn (fall) starts officially on Wednesday this week. The weather is set to get colder. There will be a change to it, mist and fogs are due, rain and wind, even some storms.
This photo was taken a few nights ago, high pressure over the UK and a red sky in the evening indicating settled warm weather.
Even if we had long term weather forecasts they are never that accurate here in the UK. The air over us is unstable, affected by the ocean, the Arctic, weather over Europe and coming in from the East over Russia. If you want interesting, rapidly changing weather come to the UK.
More thunder forecast.
Could it thunder again?
Is it possible?
It’s forecast.
I sit waiting.
Listening for rumbles.
Bright flashes.
It’s rained heavily,
But no bangs and crashes.
No flashes or smashes
Pent up heat
Humidity.
Pressure is high
but falling rapidly.
If I sleep
Will I wake
To fireworks or whizz bangs!?
Barometer reading
My barometer pressures have dropped from about 1010 yesterday to 970 on my traditional barometer and 959 on my electric weather station. There is always a discrepancy of about 10 (millimeters of Mercury?) between the two.
What is ‘pressure’. Pressure is air pressure, the weight of the air pressing down on us from the top of the atmosphere downwards.
The guage on the traditional barometer has gone from fair (gold pointer) to rain with the black pointer.
How is pressure measured? One ‘bar’ of pressure is the average air pressure at sea level. It’s also measured in millimetres of Mercury. There was a historical experiment to find out about the air pressure. The experimenters put a tube of mercury upside down in a glass dish. This can leave a vacuum in the top of the tube. If you have the tube and dish at sea level the Mercury will be at a lowed level in the dish. This is because a larger weight of atmosphere is pressing down. Go up a mountain and the level in the dish will rise, because the air pressure up there is lower (less depth of atmosphere).
There is lots of information on sites like Wikipedia about air pressure. They probably describe how the air circulating in the atmosphere causes areas of low and high pressure. The weather is also influenced by the sea and its temperatures and the heating of the Earth’s surface by the sun.
Mallaband-Brown 