Heavy rain has hit Christchurch after a mid-afternoon spate of loud, rolling thunder and lightning.
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Peter Mcgregor posted on The Press's Facebook page that it was raining "cats and dogs" at the Methven trots. "Can just see the the horses."
This morning the MetService issued a severe thunderstorm warning for Canterbury saying heavy showers and thunderstorms were expected in localised areas.
It warned that in localised areas from the Rakaia River to Kaikoura some of these thunderstorms had the potential to be "severe", producing heavy rain with intensities up to 35mm/hr and hail larger than 25mm in diameter.
Rainfall of this intensity could cause flash flooding, especially about low-lying areas such as streams, rivers or narrow valleys, and may also lead to slips.
Driving conditions will also be hazardous due to surface flooding and poor visibility.
Large hail could cause significant damage to crops, orchards, vines, glasshouses and vehicles, as well as make driving conditions hazardous.
Police have also warned drivers to stick to the conditions if caught in the bad weather.
- The Press