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The Islander Newspaper Ascension Island
  Issue No. 2164 Online Edition Tuesday 18 June 2013 
Home | January 2012 Please tell us what you think of this article. Tell a friend Print Friendly

Ascension : The Met Office Weather Report
Submitted by The Islander (Met Office) 19.01.2012 (Article Archived on 02.02.2012)

Ascension: Fairly cloudy starts to most mornings, but the afternoons have been bright with plenty of sunshine and only a few showers, mainly overnight

 

Statistics for the week ending Monday 16-Jan-12 

 

Max (Celsius)

Min (Celsius)

Rainfall (mm)

AIRHEAD

28.8

21.8

Tr

TRAVELLERS

30.0

21.0

1.6

RESIDENCY

24.3

18.0

6.8

GEORGETOWN

30.5

23.6

0.0

ST. HELENA

21.6

16.2

No data

FALKLANDS

26.0

3.9

3.5

UK (Brize Norton)

12.5

-4.3

Tr

Past Week’s Weather

UK

A rather unsettled start with cloud and outbreaks of rain during Monday. High pressure began to build from the south during Tuesday, but it remained unsettled and breezy in northern parts. By Friday high pressure dominated bringing clear and sunny weather across most parts. It was rather cold though with lows of minus 4 at Brize Norton.

Falklands

It has been a good weather week for the Falklands, with plenty of sunny spells and just a few showers at times. Monday was the warmest day with temperatures reaching 26C! Wind was the main issue on Monday and Tuesday with gusts up to 35KT.

Ascension

Fairly cloudy starts to most mornings, but the afternoons have been bright with plenty of sunshine and only a few showers, mainly overnight.

St. Helena

Large amounts of cloud around at times, with a few showers. Generally the afternoon periods were brighter with sunshine.

 

How are clouds formed? Compiled by Mr Frosty

Clouds are formed when invisible water vapour in the air changes into visible water droplets or ice crystals. For this to happen the air must become saturated (when the air is unable to hold all the water in vapour form). It then begins to condense into liquid/solid form. There are two ways to start this process:

 

1.     Increase the water content in the air to the point where the air can hold no more.

  1. Leave the water content unchanged and cool the air to a point where it can hold no more.

 

As the sun heats the ground, it causes the air near the surface to become warmer. As the air  parcel is warmer than it’s surrounding air it begins to rise. As it rises the parcel of air cools to the point where it becomes saturated and the molecules condense to form clouds.

 

The cloud droplets need something to condense on. Floating in the air are millions of salt, dust and smoke particles known as Cloud Condensation Nuclei which enable the condensation process to take place.

 

Crown Copyright 2011. Met Office.

Met Office  Ascension Island Base

 

 

 

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