21 Feb 2018 | 01:25 PM UTC
New Zealand: Cyclone Gita crosses South Island Feb. 21 /update 3
State of emergency declared in Christchurch following passage of Tropical Cyclone Gita February 20; further damage caused Feb. 21
Event
On Wednesday, February 21, heavy rain brought by Tropical Storm Gita provoked major flooding and landslides in Christchurch and other provinces that left 5000 people cut off from the rest of the island. However, according to New Zealand’s weather bureau, the worst is likely over.
A state of emergency was declared on February 20 for Christchurch as well as two other districts on South Island due to damage that had already been caused by Gita; dozens of schools were closed. The storm also caused major flight disruptions on February 20.
Context
Gita brought severe flooding and associated damages to Samoa and American Samoa before striking Tonga and Fiji February 13-14, where widespread damage (houses flattened, crops destroyed) was reported. Samoa declared a state of emergency and US President Donald Trump signed an emergency declaration for American Samoa on February 11.
Cyclone season in the region typically lasts from November to April but storms can occur outside this period.
Advice
Individuals present in New Zealand are advised to confirm travel reservations, monitor local weather reports, and follow all instructions as issued by local authorities (e.g. evacuation orders).
Remember that driving or walking through running water can be dangerous - 15 cm (6 in) of running water is enough to knock over an adult - and that floodwater may contain wastewater or chemical products; all items having come into contact with the water should be disinfected and all foodstuffs discarded.