Earth Changes
The temperature at Pukaki - west of Timaru and south of Aoraki/Mount Cook - hit -20 degree Celsius this morning, 5.6 degrees off the record low set in Ranfurly in 1903.
The MetService said Omarama went as low as -16.7 degrees and Tekapo -13 degrees.
"It's down there New Zealand, one of our coldest days in history," Breakfast weather presenter Sam Wallace says.
By 9.20am many South Island centres had yet to reach zero.
Invercargill was at -3.6 degrees, Alexandra -5.1 degrees and Queenstown -5.3 degrees.
It was still -12.4 degrees at the Pukaki Aerodrome.

Lighting strikes outside of Joliet, Illinois from a tornadic supercell that produced a tornado that struck Coral City on June 22, 2015 in Joliet, Illinois
At least seven states were hit in all by the thunderstorms, with numerous houses damaged and trees uprooted. Videos captured of the hurricane-like conditions showed an almost apocalyptic scenario, with debris littering the roads.
One of the worst-affected areas was Coal City, southeast of Chicago. A tornado affected the area, while there were at least two injuries according to local authorities, with one person taken to hospital.
NASA explains that the halo is formed when sunlight shines through ice crystals in the air. A similar occurrence is called a sundog, during which a rainbow-colored splash appears to the left or the right of the morning sun.
Share with us your photos of the beautiful phenomenon by uploading them to sharit.king5, or sending them to shareit@king5.com.

Mudslides at the foothills of Mount Kinabalu have seen boulders as big as fars flowing down the river and cut off road access between Mesilau and Kundasang.
According to state Meteorological Department director Abdul Malek Tussin, the latest was a 4.3 magnitude earthquake, occurring some 19km northwest of Ranau, Sabah.
Mild tremors were felt as far away as Kota Kinabalu, Ranau, Kota Belud and Kundasang.
Sabah, particularly the Kundasang and Ranau regions, has been rocked by aftershocks — the biggest being 5.1 magnitude — since a 5.9-magnitude quake hit Sabah on June 5, killing 18 climbers on Mount Kinabalu.
Damage from the aftershocks so far include rockfall, mudslides, landslides and cracks to buildings including schools in the area.
Villagers at the foothills of mount Kinabalu have been traumatised by the quake and its subsequent aftershocks, many claiming they are not able to sleep at night for fear of another quake.
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"I am currently on a MC trip up though the coastline in Norway, and it has been a very cold journey so far, only 3C on some passes in the mountains," says reader 996bip.
"I was planning to also do some hiking to some of the known mountains, though tourist season is in full swing, still a lot of places is closed due to snow, and frozen lakes. The popular hiking trail over "Besseggen" was closed due to the boat that takes tourist over the lake, could not go because of ice.
"The same on "Nigardsbreen" a glacier arm on Jostedalsbreen, the boat on that lake could not go because the lake was nearly empty. The summer melt, and the movement of the glacier has not even started yet. I had to walk along the lake about 45min to reach the glacier, and it was amazing be able to go so near and to almost touch the ice. Here's a short clip from that day:

Canyon County spokesman Joe Decker says the woman was attacked by the pig Thursday morning.
The pig escaped from its enclosure on the 3000 block of Karsten Court, he said, but was corralled back onto the property by its owner. That, Decker said, is when it attacked a neighbor who was on the owner's property.
The victim suffered a bite wound and may have sustained additional injuries from the fall.
The owner took the pig to a local veterinarian, and it was euthanized, Decker said. A sheriff's office animal control officer plans to retrieve the animal's head on Friday and take it to the Idaho Department of Agriculture to be tested for rabies.
Because the incident was reported to the sheriff's office via telephone — no officers responded at the time — Decker said the size of the pig and the full extent of the woman's injuries are unknown.

An orange is dwarfed by the size of this hailstone that hammered the Jerry and Leanne Wells home east of Nisland on Highway 212.
It began with tornado and thunderstorm warnings in Belle Fourche and as it moved east in Butte County, the storm intensified.
The people of the Nisland, Newell and Vale areas saw the evidence of that as many of them hunkered down waiting out the rain, hail and high winds that ripped through the area late in the afternoon and evening hours.
"Glass and debris is everywhere," LeAnne Clark, Nisland Town Finance Officer, said.
Every window on the north and west sides of the parsonage were lost in the home where she and her husband Pastor Doug Clark of the Nisland Independent Community Church live.
Two thirds of the fin whale's carcass, measuring 10m (33ft), was found on RSPB land near Harwich.
It was dragged in on the front of a cargo vessel but experts believe it may have been hit by another ship.
The decision has been taken between scientists and landowners to leave the remains in place as it is not considered a public health hazard.
The body was found last week on private land with no public access, said Rick Vonk, site manager of the RSPB Stour Estuary site.

The baby was bitten on the face in a horrific dog attack by the family's Alaskan Malamute (pictured) in Campbelltown
First-time parents Aaron and Jessica Graham were sleeping when they heard their baby cry out just before 3.30am on Monday and woke to find their Alaskan Malamute biting their daughter on the face in their Hoddle Avenue home in Campbelltown, in Sydney's south-west.
Outside the young family's home, a chilling warning - 'beware dog on premises' - is seen fastened on their letterbox as two dogs are seen running around the backyard.
Paramedics were called to the home and the baby girl was taken to Campbelltown Hospital for treatment to facial wounds before being moved to The Sydney Children's Hospital in Randwick, in Sydney's east, with her parents by her side.
Inspector Jason Insker said the first-time parents are very distraught over the incident.
Her injuries are not believed to be life threatening and she is undergoing facial surgery, 9News reported.
The spout startled seaside residents in Kalbarri, about 580km north of Perth, when it appeared on Sunday afternoon.
Local fisherman Dean Robins was in his driveway when he spotted the funnel-like weather feature.
"I've seen this unusual cloud that was sort of funnelling down," he said.
"We sort of weren't too sure whether to run inside or not because it was ... heading our way, but it sort of crossed a little way to the north of us."









