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7. Synoptic Reports
Our last piece of information corresponds in time to the synoptic map.
This map shows the actual station reports from which the synoptic map
was compiled. For our purposes here there are only a couple of features
of relevance.
1. Each station is depicted with a circle
2. Cloud cover is shown by the extent to which the circle is filled in.
3. Wind direction is shown by line extending outwards and the number of
strokes on the end of this line indicates windspeed.
4. The numbers to the left of the station indicts temperature and humidity.
5. Current weather is depicted with a symbol between these two numbers
(small dots represent rain).
At Dublin Airport, the airflow is easterly, the sky is obscured, the
air temperature is 5.1°C and it is raining heavily. If you look at the
wind barbs over Britain and Ireland you can see the cyclonic spin observed
on the other maps. Notice that in the south of England the airflow is
from the south, over Wales it is south-easterly, easterly over Dublin
and northerly in Shannon and Valentia (southwest Ireland).
