Extreme Temperatures
Torgny Johansson spoke to The Local a day after he snapped the picture of the enormous ice circle floating in the Kalix River at Forsbyn, 75 kilometres north of Luleå, using his drone.
"I have seen one maybe two or three times before near the same place as this one. But nothing as large as this," he said.
Ice circles are formed in slow-moving areas of rivers where a part of the current moves in the opposite direction to the main stream, a so-called 'backstream'.
When the water freezes the circling currents form an ice disc.
One resident of the prefecture capital, Sapporo, said: "It's a lot, a lot! Last year it snowed around November 8 but it was nothing like this".
In this northern prefecture of Hokkaido, the lavender fields of Furano saw temperatures on Wednesday night drop to minus 21 degrees Celsius. On the same night in Sapporo, the temperature fell to minus 7C.
Sapporo first dropped below freezing on Monday night, with snow started falling in the early hours of Tuesday.
This Thursday Vladivostok's port turned into a giant slushy machine as sea water mixed with sand started freezing under gusts of cold wind in subzero temperatures.

Heimdal Glacier southern Greenland, from NASA's Falcon 20 aircraft at 33,000 feet above sea level.
An intensive scientific study of both Earth's poles has found that from 2009 to 2016 overall temperature has dropped in the southern polar region.
NASA's Operation IceBridge is an airborne survey of polar ice and has finalised two overlapping research campaigns at both the poles. In the last few weeks NASA has revealed the overall amount of ice has increased at the Antarctic and the amount of sea ice has also extended. Coupled with the latest announcement of slight cooling in the area, it has fuelled claims from climate change deniers that human industrialisation is not having the huge impact on global tenperature as often is claimed.
Christopher Shuman, a University of Maryland, Baltimore County glaciologist working at Goddard, said: "Field data suggests that there's been a modest cooling in the area over the 2009 - 2015 time period, and images collected during that time by the Moderate Resolution Imaging Spectroradiometer on the Terra and Aqua satellites show more persistent fast ice (sea ice that is attached to the shore) in the Larsen A and Larsen B embayments"
However, Mr Shuman warned that in some areas of the Antarctic, glaciers continued to melt at significant levels, despite the slight temperature drop. At the south polio, the mission observed a big drop in the height of two glaciers situated in the Antarctic Peninsula. Mr Shuman added: "These IceBridge measurements show that once the ice shelves collapse, even some cooling and a good deal of persistent sea ice is not able to hold back these larger glaciers and they continue to lose mass overall."
Bend, Oregon, reported 13-14 inches of new snow as of Tuesday night, with snowfall rates of 4 inches in 3 hours, bringing traffic to a standstill on U.S. 97. This in an area that averages only 24 inches of snow each season. Up to a foot of snow in the Sierra snarled traffic on Interstate 80 over Donner Summit as well. Up to 22 inches of snow was reported at Kirkwood Mountain Resort south of Lake Tahoe.
Meanwhile, numerous winter storm watches, warnings and advisories have been issued across the West from the northern Rockies to the Great Basin, Sierra and Tehachapis of California, also for a large swath of the central and southern Plains from New Mexico to Iowa.
Snow started to pile up on Tuesday across portions of the interior Northwest, Sierra Nevada and far northern Rockies. Some freezing rain was also reported in the Columbia Basin.
This system will head into the Plains on Thanksgiving Day and continuing into much of the weekend, bringing a mess of snow, sleet and freezing rain.
It is possible that enough freezing rain will fall to bring down trees and power lines and make for dangerous travel in parts of the central and southern Plains.
Traffic backed up on HWY 97 #inBend. @BendCityPolice directing drivers towards exits @KTVZ #KTVZ pic.twitter.com/7dGctsK5wQ
— Lauren Martinez (@LaurenKTVZ) November 25, 2015

A flood-affected resident swims through floodwaters in Kalay, upper Myanmar’s Sagaing region on August 3, 2015. Relentless monsoon rains have triggered flash floods and landslides, destroying thousands of houses, farmland, bridges and roads with fast-flowing waters hampering relief efforts.
Weather-related disasters such as floods and heatwaves have occurred almost daily in the past decade, almost twice as often as two decades ago, with Asia being the hardest hit region, a UN report said on Monday.
While the report authors could not pin the increase wholly on climate change, they did say that the upward trend was likely to continue as extreme weather events increased.
Since 1995, weather disasters have killed millions of people, left billions injured, homeless or in need of aid, and accounted for 90 percent of all disasters, it said.
A recent peak year was 2002, when drought in India hit 200 million and a sandstorm in China affected 100 million.
But the standout mega-disaster was Cyclone Nargis, which killed 138,000 in Myanmar in 2008.
Snow and strong winds are causing traffic problems in the Primorje region. The Lika-Senj Police Department has announced that the Adriatic highway from Karlobag to Sveta Marija Magdalena is completely closed down, and on all the roads in Lika winter tyres are mandatory.
The steady stream of snow began Friday evening and carried into Saturday, bringing cold winds and slushy puddles to Michigan Avenue. But it also fashioned a wintry backdrop to the annual Magnificent Mile Lights Festival, transporting Chicagoans into a life-sized holiday snow globe.
The chill didn't bother the Kendalls, who traveled from Northwest Indiana for the festivities. They stood in Pioneer Court bundled in snow gear, relishing bites of candy-cane-garnished cheesecake as heavy snowflakes plopped onto their noses.
"It rings in the beginning of Christmas season," said Jessica Kendall. "The roads are warm, the snow's melting and we had a nice, wintry drive."
The storm hit hardest in the northern suburbs.
Lake County was walloped. By about 2 p.m. Saturday, there were reports of 17 inches in Grayslake, 16.5 in Hawthorn Woods, and 15.5 inches in Mundelein, said National Weather Service meteorologist Jamie Enderlen.
McHenry County also was socked, with 13.6 inches in Bull Valley, 12.5 inches in Woodstock and 9.5 inches in Hebron by about 7 a.m. Saturday, according to the weather service.
Scroll down to the "snowtables" section for a list of records set during this storm.
Parts of the Sioux City, South Dakota metro area picked up over a foot of snow in an intense snowband Friday. Snow has since ended, there, but has now spread into the Great Lakes, with some totals over 10 inches already coming in from parts of Wisconsin and northern Illinois.
Winter storm warnings continue from parts of northern Illinois, southern Wisconsin, northern Indiana and southern Lower Michigan, including the Quad Cities, Rockford, Milwaukee, Chicago, South Bend and the north and west Detroit suburbs. In the much of the Upper Midwest, this means a likelihood for at least 6 inches of snow in 12 hours, or 8 inches of snow in 24 hours.
Winter weather advisories are posted for other parts of Illinois, Indiana, northwest Ohio and Lower Michigan, where somewhat lower snowfall totals are expected. Despite lacking strong surface low pressure, these systems are notorious heavy snow generators in the Midwest.
Snowfall Totals So Far
As of Saturday midday, numerous locations from southeastern South Dakota to southern Wisconsin and northern Illinois have reported a foot or more of snow from the storm.
Here is a sampling of official snowfall totals around the area, by state:
- South Dakota: Tea (18 inches), Sioux Falls Regional Airport (7.2 inches)
- Iowa: George (17 inches), Waterloo (12.7 inches), Dubuque (10.2 inches), Des Moines (6.9 inches)
- Nebraska: Near Bloomfield (16 inches), South Sioux City (6.5 inches), Valentine (4 inches)
- Minnesota: Worthington (8 inches)
- Illinois: Grayslake (16 inches), Chicago O'Hare (11.1 inches), Moline (9.9 inches), Rockford (8.6 inches),
- Wisconsin: Near Footville (17 inches), Janesville (11.5 inches), Milwaukee (6.7 inches), Madison (4.1 inches)
- Michigan: Rives Junction (8 inches), Kalamazoo (5.3 inches), Flint (3.2 inches), Detroit Metro Airport (1 inch)
- Indiana: Crown Point (5 inches), Lafayette (3.5 inches), near South Bend (3 inches), Tipton (2 inches)
Comment: To the horror of global warming alarmists...
- Winter is coming! Global warming - largest science scandal in US history
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Even the most extreme forecast minimum temperature was reached - it was exactly -20°C at the Icelandic Met Office weather station at Sandbúðir in inland South-East Iceland early this morning.
It is currently -9°C in the capital Reykjavik and temperatures will struggle to exceed -4°C at their very warmest today.
Residents of Akureyri woke up this morning to temperatures of -10°C and a blanket of white, after heavy snowfall yesterday evening. A Primera Air jet flying a charter flight from Tenerife to Akureyri was forced to divert to Keflavík (KEF) as visibility in North Iceland was so bad.
Comment: See also: Russia's port city of Vladivostok hit by icy tempest