Seeing - the weather forecast.

[badnit12]

Hi, having read many references to "seeing" I now realise that it's not just about clouds getting in the way, but more to do with atmospheric conditions (I think!)

As there is no mention of astronomy in the nightly weather forecast after the news, are there clues that we can look out for, such as high or low pressure etc.?

Thanks.

Andy

 

[BGazing]

flo has a useful app which will help, called clear outside. seeing is a combination of many factors, temperature, humidity, wind and altitude jet streams, and of course light pollution.

you may also try this website, of course, look for your location... https://www.meteoblue.com/en/weather/forecast/seeing/belgrade_serbia_792680

[badnit12]

Thanks! The link looks very useful, and I'll check out the FLO app tonight when I get home.

Andy

[lunator]

Hi Andy

'Seeing' is how steady the atmosphere is.

'Transparency' is how clear the sky is. 

You can have a lovely clear night where the atmosphere is very wobbly and so the seeing is bad. 

Conversely you can have a misty night where the transparency is poor but the air is steady. 

The best night are usually when the weather is coming in from the North and you can get clear and steady nights.

My missus thinks I'm crazy when I smile at the weather forecast saying we can expect and arctic blast

Cheers

Ian

[badnit12]

Hi Ian, I can see how your missus might think you spelt your user name wrong! 

Thanks for the info btw, I think I understand now - bring on the icy blast!

Andy

 

[BGazing]

On 17/02/2016 at 15:43, lunator said:

Hi Andy

'Seeing' is how steady the atmosphere is.

'Transparency' is how clear the sky is. 

You can have a lovely clear night where the atmosphere is very wobbly and so the seeing is bad. 

Conversely you can have a misty night where the transparency is poor but the air is steady. 

The best night are usually when the weather is coming in from the North and you can get clear and steady nights.

My missus thinks I'm crazy when I smile at the weather forecast saying we can expect and arctic blast

Cheers

Ian

apologies for having simplified it too much. of course, seeing and transparency are not the same. ideally both are present, and seeing is crucial for planetary, while the transparency, imho, is more important for the dso...please correct me if i am wrong.

[cfpendock]

Here's another link you may find useful:  https://www.meteoblue.com/en/weather/forecast/seeing/cambridge_united-kingdom_2653941

Chris