Thursday: Southeasterly 15/20 knots, reaching up to 25 knots offshore in the evening. Winds tending southeast to southwesterly in the evening. Seas: 1/1.5 metres, increasing to 1/2 metres offshore. Swell: Westerly below 0.5 metres. Swell: Easterly below 0.5 metres. Friday: South to southeasterly 15/20 knots, reaching up to 25 knots offshore in the morning. Winds tending northwest to southwesterly in the late afternoon then tending south to southwesterly in the late evening. Seas: 1/2 metres, decreasing to 1/1.5 metres during the morning. Swell: Easterly below 1 metre. Swell: Westerly below 0.5 metres. Outlook Saturday: South to southwesterly 15/20 knots tending westerly 10/15 knots in the late afternoon then southerly in the late evening. Seas: 1/1.5 metres, decreasing to 1 metre around midday. Swell: East to southeasterly below 1 metre. Outlook Sunday: South to southeasterly 10/15 knots becoming variable about 10 knots during the morning. Seas: Below 1 metre. Swell: Easterly below 1 metre.Issued Thu 16:09 EDT
15:56 EDT A series of spectacular electrical storms over Perth has blacked out more than 27,000 homes and businesses and caused flight delays.