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KevBrads1
03 November 2013 18:05:53
According to the Met Office, 316.4mm of rainfall at Seathwaite in Cumbria from midnight to midnight of the 19th November 2009

Seathwaite (09.00 GMT to 09.00 GMT)
395.6mm in 2 days
456.4mm in 3 days
495.0mm in 4 days

The phenomenal rainfalls was caused by a slow moving front and orographic rainfall.

An excellent Met Office article on this event
http://www.metoffice.gov.uk/about-us/who/how/case-studies/cumbria-floods 

BBC News article on the floods
http://news.bbc.co.uk/local/cumbria/hi/people_and_places/newsid_8378000/8378388.stm 
http://news.bbc.co.uk/1/hi/uk/8369699.stm 

18th November 2009: John Hammond warns of the heavy rainfall


19th November 2009: the rain goes on


20th November 2009: Tomasz shows a 36hr rainfall animation
MANCHESTER SUMMER INDEX for 2021: 238
Timelapses, old weather forecasts and natural phenomena videos can be seen on this site
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WMB
  • WMB
  • Advanced Member
03 November 2013 21:36:20

And to show how orographic this event was, the 3 days total here was around 75mm, wet but not spectacular.  I had more rain on 11th October 2005 (24 hour period total here around 100mm - which was probably the wettest day in West Cumbria since at least the 1960's.  Fortunately that event came after a few weeks of relatively dry weather, unlike 2009!

Hungry Tiger
07 November 2013 17:04:05

According to the Met Office, 316.4mm of rainfall at Seathwaite in Cumbria from midnight to midnight of the 19th November 2009 Seathwaite (09.00 GMT to 09.00 GMT) 395.6mm in 2 days 456.4mm in 3 days 495.0mm in 4 days The phenomenal rainfalls was caused by a slow moving front and orographic rainfall. An excellent Met Office article on this event http://www.metoffice.gov.uk/about-us/who/how/case-studies/cumbria-floods BBC News article on the floods http://news.bbc.co.uk/local/cumbria/hi/people_and_places/newsid_8378000/8378388.stm http://news.bbc.co.uk/1/hi/uk/8369699.stm 18th November 2009: John Hammond warns of the heavy rainfall

19th November 2009: the rain goes on
20th November 2009: Tomasz shows a 36hr rainfall animation http://www.youtube.com/watch?v=V0u6J-WU_ME


Originally Posted by: KevBrads1 


I thought that period gave the UK a new 24 hour rainfall record. I gather that is now just over 12 inches.


 

Gavin S. FRmetS.
TWO Moderator.
Contact the TWO team - [email protected]
South Cambridgeshire. 93 metres or 302.25 feet ASL.


Essan
07 November 2013 18:38:33

There was also very serious flooding in Ireland.


I produced a comprehensive round up of stories on my blog:

http://weatherearthnews.blogspot.co.uk/2009/11/19th-20th-november-serious-floods-in.html

(some of the links there could now be dead)


And on a slight different note:

http://weatherearthnews.blogspot.co.uk/2009/11/19th-november-flooding-in-britain.html

Andy
Evesham, Worcs, Albion - 35m asl
Weather & Earth Science News 

Anyone who is capable of getting themselves made President should on no account be allowed to do the job - DNA
WMB
  • WMB
  • Advanced Member
07 November 2013 19:45:46


I thought that period gave the UK a new 24 hour rainfall record. I gather that is now just over 12 inches.


 



Wettest 24 hour hour period, but not the wettest day in the UK -work that one out


Indeed I think just about every rainfall record was broken in Cumbria that month, wettest 24 hour, wettest 48 hour wettest 72 hour wettest week and wettest month IIRC.

Hungry Tiger
07 November 2013 23:13:23


Originally Posted by: WMB 


I thought that period gave the UK a new 24 hour rainfall record. I gather that is now just over 12 inches.


 



Wettest 24 hour hour period, but not the wettest day in the UK -work that one out


Indeed I think just about every rainfall record was broken in Cumbria that month, wettest 24 hour, wettest 48 hour wettest 72 hour wettest week and wettest month IIRC.




Good post and here are all the figures. They are really amazing.


http://www.metoffice.gov.uk/climate/uk/extremes/#rainfall


The 24 hour, 48 hour, 72 hour and 96 hour records were all broken in succession . They are all now held by Seathwaite Farm in Cumbria.


The 96 hour record is very close to the annual average total for my part of the country.


 

Gavin S. FRmetS.
TWO Moderator.
Contact the TWO team - [email protected]
South Cambridgeshire. 93 metres or 302.25 feet ASL.


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