Please explain "Pressure value"
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Hello Dear,
Could you explain why does the line of pressure value 1006 in Windy.com, sometimes higher and sometimes lower? -
@NaroRithdi
Hello, Could you give further explanation to be more explicit and post screenshot ? You are probably talking about Isobars, but why specifically 1006 hPa? -
@idefix37 Thank you so much for your reply.
The line at low pressure with the value 1006hpa sometimes it is upper and sometimes it is lower, but it is the same value. example 1006hpa.
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This pressure curve in Meteogram doesn’t rely on 1006 hPa. It shows the predicted variation of pressure. The pressure values are displayed just above, on the line Pressure hPa. See screenshot:
https://community.windy.com/topic/18117/the-line-on-the-meteog-graph?_=1684855766258 -
K Korina moved this topic from Windy Account on
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@idefix37 Thank you so much for showing.
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@idefix37 Hello sir or madam
Why are the two cures of pressure down different?
I show the picture for you. At the left , it is down smooth and at the right, it is down not smooth, so why?.
Thank you
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@NaroRithdi The atmosphere is dynamic - always in motion....sometimes changes in air pressure can happen fairly quickly, other times it can be a gradual change.
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@Wheats I got the knowledge from you. It is so wonderful!
Thank you so much. -
@NaroRithdi Hello sir or madam,
Could you explain me in the picture at the red question mark? How does the air pressure work with air blowing where the curve is being down?
Thank you.
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@NaroRithdi
As already explained, this curve shows the variation of pressure over time.
The wind speed depends on the pressure gradient, i.e. the difference in pressure over the distance, not over time !
But if a low pressure system is moving to your location, the local pressure will decrease. And generally as low pressure systems bring windy conditions, you'll get wind. Look at the Pressure layer with isobars, to understand what Meteogram displays. -
@idefix37 Thank you so much.
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@NaroRithdi Hello sir,
I live in Cambodia. I use Windy.com in my Iphone 14 Pro Max. to forecast weather at every six hours or every one hour at Meteog. service but when I updated windy.com in App Store I miss it to watch. it make me worry because Meteog is very very.. so important for me.
best regards,
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@NaroRithdi
Just click on Basic to replace it by Meteogram (Meteog.)
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@idefix37 Thank you.
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@NaroRithdi Hello sir,
Could you explain me about wind gusts and convective?
When wind gusts raise speed of 35km or more, the convective that grow up in Meteogram, not effective in cloud then it do not make rain.Best regards,
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@NaroRithdi 
image url) -
@NaroRithdi Another question, density of cloud high is 3km in the Meteogram picture below, at the time 4pm and 5pm. The wind speed of 4km or 5km moves slowly around so does it cause heat in atmosphere to make rain or not, only temperature 28 Celsius?
Thank you.
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@NaroRithdi Another question, density of cloud high is 3km in the Meteogram picture below, at the time 4pm and 5pm. The wind speed of 4km or 5km moves slowly around so does it cause heat in atmosphere to make rain or not, only temperature 28 Celsius?
Thank you.
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@NaroRithdi the pressure at time 4pm and 5pm is 1007hPa is fairly for cloud moved in a circle.
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@NaroRithdi Friend, I think you should look into some meteorology courses.
Not sure what might be available around you but you can try searching online for "MetEd" and/or "Haby's Hints". Both are free resources that can maybe help you understand some meteorological concepts.
