NZ Historic Weather Events Catalogue
April 1971 Northland Thunderstorms ( 1971-04-18 )
Thunderstorms brought lightning and heavy rain to the Whangarei district, causing flooding and landslides.
Northland
Multi Hazard
at
Northland
Duration: 2 days - From the 18th to the 19th of April.
A frontal band lay slow-moving over Auckland, while Northland lay within a humid north to north-east airstream, with a negative-tilt trough moving onto Northland with difluent flow.
Lightning
at
Taipuha
There was a severe electrical storm at Taipuha on 18th and 19th.
Heavy Rain
Settlement Road at Taipuha recorded more than 6.5 in (16.5 cm) of rain.
Settlement Road at Taipuha received a maximum of 250 mm (25.0 cm) of rain in the 2.5 hours to 10pm on the 18th). This was 2.59 times the 150 year return period.
Lightning
at
Whangarei Heads
Continuous thunder and lightning was observed with the heavy rainfall event of the 18th and 19th at the Whangarei Heads.
Heavy Rain
Whangarei Heads recorded 230 mm (23.0 cm) of rain in the 5.5 hours to 2:30am on the 19th. This was well over the 150 year return period.
Landslide
There were major slips on hillsides, and roads were damaged.
Flooding
Paddocks were flooded.
74 stock were lost.
Multi Hazard
Buildings were damaged.
References
- Gray, W. Overview of weather and coastal hazards in the Northland region, Part I: Weather hazards.
- New Zealand Meteorological Service. (2008). Meteorology of Extreme Rainfalls in New Zealand (Mark Pascoe, Ed.).
April 1971 Northland Thunderstorms ( 1971-04-18 )
Thunderstorms brought lightning and heavy rain to the Whangarei district, causing flooding and landslides.
Northland
Multi Hazard
at
Northland
Duration: 2 days - From the 18th to the 19th of April.
A frontal band lay slow-moving over Auckland, while Northland lay within a humid north to north-east airstream, with a negative-tilt trough moving onto Northland with difluent flow.
Lightning
at
Taipuha
There was a severe electrical storm at Taipuha on 18th and 19th.
Heavy Rain
Settlement Road at Taipuha recorded more than 6.5 in (16.5 cm) of rain.
Settlement Road at Taipuha received a maximum of 250 mm (25.0 cm) of rain in the 2.5 hours to 10pm on the 18th). This was 2.59 times the 150 year return period.
Lightning
at
Whangarei Heads
Continuous thunder and lightning was observed with the heavy rainfall event of the 18th and 19th at the Whangarei Heads.
Heavy Rain
Whangarei Heads recorded 230 mm (23.0 cm) of rain in the 5.5 hours to 2:30am on the 19th. This was well over the 150 year return period.
Landslide
There were major slips on hillsides, and roads were damaged.
Flooding
Paddocks were flooded.
74 stock were lost.
Multi Hazard
Buildings were damaged.
References
- Gray, W. Overview of weather and coastal hazards in the Northland region, Part I: Weather hazards.
- New Zealand Meteorological Service. (2008). Meteorology of Extreme Rainfalls in New Zealand (Mark Pascoe, Ed.).