• Rare lightning strikes detected near the North Pole

    Rare lightning strikes were detected within 480 km (300 miles) of the North Pole on Saturday, August 10, 2019. A number of lightning strikes were recorded between 16:00 and 18:00 AKDT on August 10 (02:00 – 04:00 UTC, August 11) within 480 km (300 miles) of the North…

  • Likely state of Colorado record diameter hailstone

    Members of the National Weather Service office in Goodland, CO and the Colorado State University Climate Center visited a family north of Bethune, Colorado on August 14 afternoon to measure a hailstone which was reported August 13 as being the largest in the state…

  • The Weekly Volcanic Activity Report: August 7 – 13, 2019

    New activity/unrest was reported for 7 volcanoes from August 7 – 13, 2019. Ongoing activity was reported for 18 volcanoes. New activity/unrest: Asamayama, Honshu (Japan) | Sarychev Peak, Matua Island (Russia) | Shishaldin, Fox Islands (USA) | Slamet, Central Java…

  • Major explosions at Popocatepetl volcano, Mexico

    Seven moderate and two major explosions took place at Mexico's Popocatepetl volcano on August 13, 2019. Popocatepetl monitoring network detected 209 exhalations in 24 hours to 16:00 UTC on August 13, accompanied by steam, gas and ash emissions, and 496 minutes…

  • Two missing after violent storm, large mudslide hit Swiss Alps

    Two people, a 37-year-old man and a 6-year-old girl, are missing after a fast-moving mudslide hit Switzerland's Valais canton on Sunday night, August 11, 2019. The event took place late Sunday after a violent hit the region, causing the Losentze river to…