It is windy today because of a low pressure system moving offshore, creating strong winds especially along north-facing shores. This system involves an upper-level low merging with another weather disturbance offshore and a surface low pressure, causing increased wind speeds with gusts up to 50-60 km/h in some coastal areas. There is also a "sting jet" phenomenon associated with this departing low, which can cause higher gusts offshore. These meteorological conditions are driving the windy weather today.
In summary, today's windiness is caused by a combination of low pressure systems and atmospheric dynamics typical with such weather patterns, resulting in sustained and gusty winds in affected regions.
