Knowing the visibility for a flight in advance
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Join Date: Feb 2013
Location: Los Angeles, CA
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Knowing the visibility for a flight in advance
Does anybody have any recommendation for the visibility forecast and ways how to decide on picking a day with as much less haze as possible? Are there any specialized forecasts one can consult? How do the pilots know?
Join Date: Sep 2007
Location: Scotland, UK
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For the UK the Met office issue a MesoScale for visibility covering the whole country. Very useful -
Met Office: Online services - customer login
Not sure the USA equivalent though.
Met Office: Online services - customer login
Not sure the USA equivalent though.
It will depend on where the air is coming from as well as temperature and humidity. If you have light winds and high pressure you will usually have poor visibility, especially if there is a lot of industrial and traffic pollution (I expect that is often the case in LA). Winds from the sea are usually cleaner than from the land.
Often the best visibility is just after a cold front has passed through - stronger winds and lots of rain to clear the haze.
High humidity is bad for visibility as more water vapour is held in the air.
Often the best visibility is just after a cold front has passed through - stronger winds and lots of rain to clear the haze.
High humidity is bad for visibility as more water vapour is held in the air.
Join Date: Dec 2005
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"With as much less haze".............?
For goodness sake - are you a pilot or what - interpret the met charts and you'll see when the haze is coming or clearing
For goodness sake - are you a pilot or what - interpret the met charts and you'll see when the haze is coming or clearing
Last edited by Thomas coupling; 7th Jul 2013 at 17:58.
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While forecasts can be useful, they are often wrong. The weather at any given point will be what you see out the window.
Last edited by EN48; 7th Jul 2013 at 23:41.