A low-pressure area off the southwest coast of Iceland will bring gale-force winds in that region and will likely trigger waves of up to 13 m [43 ft], Vísir reports.
These waves will not merely be out at sea but will also be in evidence along the southern and western coastlines, particularly in the later part of the day and evening on Friday. As much of Route 1 and other main roadways travel along the coast in these regions, travellers are advised to be cautious.
Alerts posted on safetravel.is similarly advise that “very strong and hazardous” waves at Reynisfjara beach on the South Coast are expected for the whole weekend. Visitors should “[u]se extra caution, stay WELL back from the water, and [not] leave children unattended.” No one should attempt to enter the cave at Reynisfjara during this time, either.
Safetravel.is also notes that Friday evening will being high winds of up to 40m/s [144 km/h; 90 mph] “in the north and east from Hvammstangi to Egilsstaðir and in the highlands.” Drivers are advised to reduce their speed when driving in these areas.
You can check Safetravel.is for weather alerts in Icelandic. English, French, German, and Chinese.