Many roads are closed this morning in all regions of Iceland, and roads which remain open are not easily passable due to ice or snow.
Holtavörðuheiði is closed to traffic and Brattabrekka is impassable. The same is true for other mountain roads including Þröskuldar, Kleifaheiði, Þveráfjall and elsewhere.
There is ice and blown snow on Sandskeið, Hellisheiði and Þrengsli, and ice and sleet on Reykjanesbraut.
Flights have not escaped the disruption, as there will be no domestic flights early this morning and flight authorities will re-evaluate conditions for flying later today at 10.15.
International flights were canceled or delayed last night and this morning, though Keflavík International Airport is up and running again now—though the road to get there is treacherous.
The weather delays at Keflavík were compounded because it was too windy to connect air bridges to planes for passengers to alight and board.
In addition to the above, electricity cut out on the Snæfellsnes peninsula before 07.00 this morning and remains off at the time of writing.
Iceland is well-used to stormy weather at this time of year and authorities are well-equipped to get roads and airports open again quickly. You can follow road and weather conditions here: Vegagerðin and Veður.
This December has been unusual so far for the number of such storms and also their severity.