A frosty morning blast has prompted warnings for South Island motorists to take caution
	A frosty morning blast has prompted warnings for South Island motorists to take caution
    
	
    
	
	15 September 2021 
		
		
        
	
Temperatures have dropped as low as 4 degree celsius in parts.
Waka Kotahi's urging drivers to watch out for hidden ice.
Journey manager Tresca Forrester says she's expecting frostier conditions for Southland, Canterbury and Otago.
She says the cold weather is forecast to last for several days.
	
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