Temperatures dropped more than 10degC in one hour yesterday
when a ''vigorous cold front'' hit Dunedin.
A gusty northwesterly lifted temperatures to 22degC yesterday
But by 2pm the low hit, bringing heavy rain and temperatures
of only 9degC.
By 3pm, 5mm of rain had fallen. Gale-force gusts of up to
65kmh had also been recorded in the city.
At Dunedin airport, the temperature hit 20degC by noon but by
3pm had dropped to 8degC.
The cold front also hit Alexandra about 2pm, with
temperatures dropping from about 12degC to 7degC as strong
southerly gusts of about 55kmh were recorded.
A MetService forecaster said the cold southwesterly was
expected to bring rain and even snow down to 400m in
The MetService had issued severe weather warnings for high
winds in eastern Otago and for significant amounts of rain
for the headwaters of the region's lakes and rivers.
The warning lead the Otago Regional Council to post a flood
watch alert yesterday, although no rivers had reached alert
level by early evening.
Bad weather in Christchurch and Wellington caused seven
flights between Dunedin and Wellington to be cancelled and
one service between Dunedin and Christchurch due to ''the
significant disruptions to our schedule'', an Air New Zealand
The southerly was expected to continue through today,
bringing temperatures of about 12degC, before easing and
turning northwesterly again tomorrow.
''Then you'll be back to 17degC to 20degC for the rest of the
• A decision will be made today on whether to reopen the
Milford road, which closed at 5pm yesterday at the Hollyford
turnoff. Heavy rain and strong winds had caused treacherous
driving conditions throughout the day.