Norway — Major wildfires in California in winter are bad enough Unfortunately, now we must include the Arctic to the anomalous tally. For since December, three major wildfires have erupted in Arctic Norway, with two of these extraordinary fires blazing through coastal Nordic settlements just this week.
* * * * *
On Monday, a major wildfire erupted along the western coast of Norway near the city of Flatanger. The fire, fanned by winds ranging from 30-50 miles per hour and by a drought in which almost no precipitation has fallen since Christmas spread rapidly, rushing over the mountainous terrain to put both life and livelihood at risk.
As of Wednesday, the fire had exploded to the largest wildfire recorded in Norway since World War II. It had also consumed 139 homes as it raced down the rocky mountain sides of western Norway.
By late Wednesday, as firefighers struggled to bring the Flatanger fire under control, a second massive fire erupted on the island of Froya about 80 miles to the south and west. The fire exploded with such ferocity that 430 residents were forced to evacuate as flames and smoke rushed down along the hillsides. As of Thursday, the Froya fire still burned out of control, threatening to spur evacuations from other settlements in the path of the blaze.
The Flatanger and Froya fires mirrored another large blaze that erupted in Norway during early December, consuming 40 homes near the town of Laerdal. The Laerdal fire coincided with a period of excessive warmth and drought, with December marking one of Norways warmest winter months ever and Oslo experiencing its hottest Christmas since record keeping began in 1937.
Needless to say, it is not at all normal for Norway to experience wildfires of record intensity during winter time. A clear sign that climate change together with a mangled jet stream and extreme polar amplification are well in play to create dangerous and freakish conditions.
Just a month ago, no one would have said there was a threat of brushfires in Trøndelag at this time of year, noted Dagfinn Kalheim, director of the Norwegian fire prevention association. Now, theyve experienced three of their worst fires on record during winter. Unfortunately, in the context of a warming globe and related human-caused changes to the atmosphere, land and sea, locations around the world and especially around the Arctic Circle are under the gun to experience ever-worsening fires.
Drought, Fuel, Wind, Ignition
Western Norway has been in the midst of an ongoing drought since late fall. The drought, spurred by a ridge in the polar Jet Stream has steered storms away from the usually wet Norway and slammed them over and over into the British Isles, France and Spain. The drought left mountain scrub and thawing tundra in the region very dry and vulnerable to fire. This anomalous period also included one of the hottest Decembers in Norways reckoning.
In recent years we have seen increased fire vulnerability in far northern regions due to thawing tundra, increasing periods of heat and drought, and, possibly, maritime emissions of flammable gasses. The tundra is full of organic material and, in certain regions, emits methane in high enough concentrations to burn. The Arctic seas have also been emitting high volumes of methane and related flammable gasses, but it has not been determined that these emissions come in high enough concentration to add a potential secondary ignition source. Though a cause has not yet been determined for the historical Flatanger fire, it is likely that a combination of drought, related dry scrub and the yearly advance of thawing tundra in the region contributed to the intensity of the blaze.
Strong winds over the drought-stricken coastal region enabled the fire, which would generally be suppressed by temperatures near freezing, to rapidly spread through the tinder-dry underbrush and sporadic regions of thawed tundra. Fire fighters have been unable to locate an ignition source at this time.
Climate Change Context
Climate change drives both increasing heat, extended periods of drought in previously damp regions, and changes to the environment, especially in the Arctic, that provides more fuel for wildfires. In addition, more numerous Arctic thunderstorms provide an expanding ignition source for these blazes while the Arctic Ocean and adjacent tundra now emit prodigious volumes of methane.
It is also worth noting that both the World Meteorological Organization and UN Climate Chief Christiana Figueres have both established an absolute link between human caused warming and increasing numbers of wildfires. And the fact that we are seeing the eruptions of major wildfires throughout the Northern Hemisphere during winter, a time when wildfires hardly ever occur, is yet more evidence that the situation is growing ever more extreme.
Unfortunately, the weather forecast for Norway shows continued dry conditions for at least the next two weeks. In addition, a period of warming is expected to bring temperatures 7 degrees (Celsius) or more above seasonal averages over the coming days. With higher temperatures and dry, southerly winds continuing to blow, Norway remains under the gun for extreme winter wildfires.