Friday: Westerly 20/25 knots turning southwesterly during the evening and decreasing to 10/20 knots. Seas: Up to 2 metres. Swell: Westerly up to 1 metre. Saturday: Southwesterly 10/20 knots turning westerly 15/25 knots from the late morning. Seas: Up to 2 metres. Swell: Westerly around 1 metre. Outlook Sunday: Westerly 15/20 knots. Seas: 1.5/2 metres. Swell: Westerly around 1 metre. Outlook Monday: West to southwesterly 15/20 knots tending west to northwesterly during the morning. Seas: 1/1.5 metres. Swell: Westerly below 1 metre.Issued Fri 16:07 EDT
15:34 EDT It's not easy to get a sense of just how powerful a typhoon, cyclone or tornado will be.