So at 10.30am I was there......
We have 3 Weather Observers on the Island so the station is 'manned' all day every day. The Observers not only supply weather information to the community but also assess the conditions for all flights in and out of the airport.
Because the computers only work off limited data they often 'see' and report conditions which are not the reality, therefore the human observers need to override and supplement the reports with actual observations.
Wet and dry bulb, alcohol & mercury thermometers
The 'offical' rain gauge with standardise measuring flask