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What is the difference between Early, Flash and Advisory warnings?

April 26, 2017advisory difference early Flash warnings

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What is the difference between Early, Flash and Advisory warnings?

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A guide to severe weather warnings is available online. Advisories are issued at 11:00 daily as routine onto the Met Office website (only) and indicate an expectation of risk of disruption from severe or extreme weather. Early and flash warnings supersede advisories when risk of disruption levels are 60% or greater. An early warning of severe weather will normally be issued up to several days in advance whenever the overall risk of disruption in any UK region is 60% or greater. Flash warnings of severe weather are issued when the risk of an event reaching specified criteria is above 80%, and should give a minimum of two hours’ notice. Warnings are issued for every affected county or unitary authority.