The Weather Outlook

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MRazzell
08 June 2026 19:18:17
I find it curious that reservoir levels are used as the baseline deterministic for drought within a given region. The water that comes out of my tap is pumped across a region that has wildly varying levels of rainfall. 

Edit - i should clarify, im referring to comments on this forum rather than official statistics. 


Far north of East Sussex. +150m asl.
tierradelfuego
08 June 2026 19:47:43

The actual definition of a drought is determined by a certain consecutive number of dry days. 

Originally Posted by: johncs2016 

Would be really interested to see your source for that, can't find anything on the MET or elsewhere that describes as anything other than a prolonged dry spell?? 


Bucklebury

West Berkshire Downs AONB

135m ASL

VP2 with daytime FARS

Rainfall collector separated at ground level

Anemometer separated above roof level

WeatherLink Live (Byles Green Crew )

Matty H
08 June 2026 19:59:01

Would be really interested to see your source for that, can't find anything on the MET or elsewhere that describes as anything other than a prolonged dry spell?? 

Originally Posted by: tierradelfuego 

It’s to do with water availability. Nothing to do with a specific number of dry days, 


Yate, Nr Bristol

TBFTEIARBSC

tierradelfuego
08 June 2026 20:02:49

It’s to do with water availability. Nothing to do with a specific number of dry days, 

Originally Posted by: Matty H 

Yes, I agree, it would be a seriously flawed metric if all it catered for was consecutive dry days.


Bucklebury

West Berkshire Downs AONB

135m ASL

VP2 with daytime FARS

Rainfall collector separated at ground level

Anemometer separated above roof level

WeatherLink Live (Byles Green Crew )

johncs2016
08 June 2026 20:06:07

Would be really interested to see your source for that, can't find anything on the MET or elsewhere that describes as anything other than a prolonged dry spell?? 

Originally Posted by: tierradelfuego 

Sorry, meant to say that people generally define drought in terms of a certain number of days. I could be completely wrong about that of course, and I will apologize if I am but that is how I have always seen that until now.

How I got that definition is by punching "absolute drought definition UK" into a Google search and when you do that and read the resulting AI output, you will see that an absolute drought is defined by the Met Office as a period of 15 or more consecutive days with a rainfall total of no more than 0.2 mm.

If you have 0.2 mm of rain, that is technically not the same as being completely dry but since that is barely anything at all, that is as good in my books as being completely dry just in the same way that we can say that 0.999 is approximately equal to 1 even though those two numbers aren't exactly equal to each other.

Going by that, I think that it stands to reason that a drought can be defined as a certain consecutive dry days and that is the point which I was trying to make here.


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.

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