![]() The Tarn’s water is strikingly clear and bitterly cold, and it usually only stays around for a few days before disappearing again. The Disappearing Tarn is a small lake that sometimes appears on the side of kunanyi / Mount Wellington after heavy rain. “Like tripping into paradise” is how The Guardian’s Natasha Cica described Tasmania’s Disappearing Tarn when she first laid eyes on it in November last year. With this much rain in a short space of time, it also wasn’t surprising to see an elusive iridescent turquoise lake suddenly appearing on the rocky slopes of kunanyi / Mount Wellington. Image: Observed rainfall during the week ending on August 18, 2022. This included 177.2 mm in one week at kunanyi / Mount Wellington, which is more rain than the mountain received during all of June and July combined. The map below shows that most of Tasmania received around 50 to 100 mm of rain in the last seven days, with a few places exceeding 150 mm. However, it was unusual for so much rain to fall in the state’s east, courtesy of a deep low pressure system in the western Tasman Sea. ![]() So, it wasn’t surprising to see a processions of low pressure systems and cold fronts delivering frequent and heavy rain across the state during the past week. ![]() This sits just behind July (154.4 mm) and a smidgen ahead of May (135.7 mm) and September (134.9 mm). The mysterious Disappearing Tarn has returned to kunanyi / Mount Wellington this week after a quintessential late-autumn state-wide soaking caused flooding in Tasmania.Īugust is Tasmania’s second wettest month with a state-wide monthly average of 148.2 mm. ![]()
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