Icelandic Met office: "Strong gale (more than 20 m/s) is expected by the southwest coast and in the highlands after noon tomorrow. Considerable rain is also expected and heavy rain in places in the south part of Iceland. Valid to 19.07.2017 00:00"
Picture above shows Harmonie prediction of wind speed in meters per second at 850mb (roughly 1500 meter elevation) @ 17:00, Tuesday 18th of July.
Current conditions, Gufuskálar Base @ 17:00, Monday 17th of July.
Wind from South, 175° - 10 meters per second.
Dew Point: 5,5°C
Precipitation past 24 hours: 0 mm
Southerly winds expected throughout the week. Expect tour cancellations on Snæfellsjökull glacier. No traveling conditions Tuesday afternoon for campers and caravans on the north side of Snæfellsnes peninsula. Stay alert, monitor www.vedur.is and www.safetravel.is for further information.
Picture below at Gufuskálar base, 17:00 (5PM), July 17th. Looking south towards Snæfellsjökull glacier.