A new lake formed by a landslide in the Waiorongomai Valley is being closely watched ahead of expected heavy rain, which is seeing Tairāwhiti’s state of emergency extended. A state of emergency in Tairāwhiti was expected to be lifted at 10pm this evening, but will now remain in place. Another lake formed in the same location in 2020, but it was much smaller and only lasted about a month, Cave said.