Glacial outburst flood begins in Skaftá River as authorities monitor conditions in Iceland

Iceland’s Meteorological Office has confirmed that a glacial outburst flood, known as Skaftárhlaup, has begun from the western Skaftá caldera. On the evening of August 19, electrical conductivity in the Skaftá River began to rise, accompanied by increased water levels and flow rates. The water flow at Sveinstind has seen a gradual increase in recent hours, suggesting the flood originates from the western caldera, which typically produces smaller floods than its eastern counterpart.

Experts anticipate that although the flow has risen steadily, it is not expected to reach significant levels. Currently, flow measurements are just under 200 cubic meters per second. As the morning approaches, areas near the Ring Road may experience increased water flow, but major disruptions to traffic are not anticipated.

Authorities have not yet declared a state of uncertainty, but monitoring personnel from the Meteorological Office have been deployed to the area. Residents and travelers near flood-prone areas should remain vigilant, as conditions can change rapidly. Hydrogen sulfide, which can pose health risks, may accompany the floodwaters, necessitating caution for vulnerable individuals.

Currently, the flow in the Skaftá River is about 170 cubic meters per second, with projections suggesting the flood could peak in the coming two to three days. Flooding conditions could affect roads near the river banks, but reports indicate no significant sulfur odors in the Hólaskjól area as of now.

Overall, while monitoring continues, authorities emphasize the importance of being informed and prepared for the evolving situation.