Otter Valley Webcam Video Gallery (2011)
Time-lapse videos of the southern sky above the Otter Valley, Devon
14th October 2011: A fine October day  
High pressure was centred to the east bringing a light south-easterly from the Continent. As the day dawned, the clouds were hardly moving but gradually the wind picked up from the south-east, and then turned north-easterly during the day. For a while, a sea breeze brought a rolling cloud bank in, but this was disrupted as the wind changed direction and the sun broke through.
Extremes and totals for 14th Oct 2011
Min Max hPa Rain Wind Sun
13.2C 17.8C 1028 0.0 19 5.3
Met Office chart for the 14th October 2011
Met Office Chart 14/10/11
   
4th September 2011: A fine late summer's afternoon then a cold front approaches  
Low pressure was approaching the north of the British Isles with a cold front. The video starts with fair weather cloud (cumulus) but then cloud increases as the cold front arrives with rain. Note how the cloud speed accelerates and the wind direction is from the SW. The front passes over at 19:20, the sky clears and the wind abruptly changes direction to the NW, the temperature also drops several degrees.
Extremes and totals for 4th Sep 2011
Min Max hPa Rain Wind Sun
7.8C 19.0C 1019 0.0 17 11.6
Met Office chart for the 5th September 2011 at 00:00
  Met Office Chart 5/9/11 00:00
29th August 2011: A fine late summer's day with cumulus  
High pressure was building in from the west bringing settled, and eventually warmer weather with more sunshine and lighter winds.
Extremes and totals for 29th Aug 2011
Min Max hPa Rain Wind Sun
7.8C 19.0C 1019 0.0 17 11.6
 
Met Office chart for the 29th August 2011
Met Office Chart 29/8/11 00:00
   
26th August 2011: A rainy ol' day with just a bit of brightness at times  
The British Isles were under the influence of slack low pressure systems giving an unsettled spell of weather with showers and longer outbreaks of rain.
Extremes and totals for 26th Aug 2011
Min Max hPa Rain Wind Sun
9.3C 14.9C 1005 17.3 18 0.2
 
Met Office chart for the 26th August 2011
Met Office chart 26/8/11 00:00
   
24th August 2011: A showery summer's day in two minutes  
Westerly airstream associated with a series of low pressure systems giving an unsettled spell of weather with showers.
Extremes and totals for 24th Aug 2011
Min Max hPa Rain Wind Sun
8.1C 18.8C 1012 2.9 21 6.3
Met Office chart for the 24th August 2011
Met Office chart 24/8/11 00:00
   
8th June 2011: Fair weather cumulus on a summer's afternoon in one minute  
A low pressure system sat over the NW of the British Isles on the 8th June 2011 giving a brisk, cool north-westerly airstream.
Extremes and totals for 8th June 2011
Min Max hPa Rain Wind Sun
8.8C 16.7C 1004 8.1 31 9.2
Met Office chart for the 8th June 2011
Met Office chart 8/6/11 00:00
   
27th March 2011: A fine, if rather hazy spring day day in one minute  

The day was a hazy one as the air mass was of Continental origin and there was little if any wind to 'blow' away the thick haze that caused the horizon to disappear into a white murk.

 

The movie is composed of 3500 separate images taken 30 seconds apart and then played at a speed of 30 images a second.

   
20th March 2011: A fine spring day day in one minute  

The day dawned with patchy cloud but by mid-morning the cloud had melted away and the sun shone all afternoon. A maximum of 15.5C with light winds made it feel quite warm in the sunshine.

Note the wind shear just after dawn where the higher clouds (associated with a decaying warm front) are moving in from the west, but much lower level clouds are coming up from the south and rolling as they do due to the effects of shear.

The movie is composed of 2500 separate images taken 30 seconds apart and then played at a speed of 20 images a second.

   
Home | Data | Live | Other Webcams | Station | Climate | Gallery | Contact | Links