According to FarmOnline Weather data, in the 24 hours to 9am on Friday between 25 and 50mm of rain fell over most of eastern and southern Tasmania, but heavier falls of over 50mm fell in the region around Hobart with 137mm recorded at Nugent, their heaviest rain in over 24 years.

West of Hobart, Grove recorded 71mm, their heaviest fall in 11 years and heaviest June fall in at least 55 years.

Eastern Tasmania has now received between 100 and 200mm of rain so far this month, around triple the long term average. Mt Wellington's 114mm lifted their monthly total to 365mm, making June 2009 their wettest month on record. Hobart is up to 141mm, their wettest month since 1996.

The rain is the result of an unusual weather pattern which has seen extended periods of easterly winds over Tasmania this month, as opposed to the typical westerly flow. An extended period of westerly winds looks set to return by Sunday, shifting rain back to the western side of island.