I'm a dedicated researcher, journalist, and editor at The Watchers. With over 20 years of experience in the media industry, I specialize in hard science news, focusing on extreme weather, seismic and volcanic activity, space weather, and astronomy, including near-Earth objects and planetary defense strategies. You can reach me at teo /at/ watchers.news.

  • Winter Weather Advisories issued as Sierra Nevada prepares for heavy snow

    ByTeo Blašković

    A strengthening low-pressure system offshore is forecast to spread heavy precipitation and mountain snow across the Sierra Nevada from Thursday, November 13 through November 15, 2025. Winter Weather Advisories are in effect for the Eastern Sierra Slopes, Greater Lake Tahoe Area and the West Slope Northern Sierra Nevada, with snow levels forecast to drop into November 14 and accumulations reaching 30–60 cm (12–18 inches) at the highest peaks.

  • Flood Watch and marine Storm and Gale Warnings in effect for Mendocino and Lake counties region, California

    ByTeo Blašković

    Interior Mendocino and Lake counties are under a Flood Watch from late Wednesday, November 12, through Thursday morning, November 13, 2025, as 50–75 mm (2–3 inches) of rain is forecast within several hours. Marine Storm and Gale Warnings are also in effect offshore, where winds up to 95 km/h (60 mph) and seas up to 8 m (27 feet) are expected.

  • Two CMEs impact Earth, sparking G4 – Severe geomagnetic storming and aurora as far south as Mexico

    ByTeo Blašković

    Coronal mass ejections produced by a long-duration X1.7 on November 9 and X1.2 on November 10 appear to have merged on their way to Earth and impacted our planet at 23:00 UTC on November 11, sparking G4 – Severe geomagnetic storming. Another CME, produced by a major X5.1 flare on November 11, is expected to impact Earth by the end of November 12, causing another round of severe geomagnetic storming. Aurora watchers have already reported impressive sightings as far south as Zacatecas, Mexico.

  • Planchón-Peteroa volcano enters new eruptive phase, Chile–Argentina border

    ByTeo Blašković

    A period of renewed eruptive activity occurred at Planchón-Peteroa volcanic complex on the Chile–Argentina border between late October and early November 2025. Volcanic Ash Advisory Center (VAAC) Buenos Aires issued multiple warnings for continuous ash emissions reaching altitudes of up to 4 600 m (15 000 feet). Local monitoring networks reported persistent degassing and minor explosions. The volcanic alert level remains at Yellow.

  • G4 – Severe or greater geomagnetic storm forecast, aurora likely as low as Alabama and California

    ByTeo Blašković

    A major X5.1 solar flare erupted from Active Region 4274 at 10:04 UTC on November 11, 2025, producing a large Earth-directed coronal mass ejection (CME). NOAA SWPC issued a geomagnetic storm watch predicting G4 – Severe or greater conditions for November 12, G3 – Strong for November 13, and G1 – Minor for November 14. On November 12 and 13, aurora may be visible as far south as Alabama and northern California.

  • Partial collapse at Mount Merapi sends lava down slopes, Indonesia

    ByTeo Blašković

    A partial collapse occurred at Mount Merapi volcano, Central Java Province, Indonesia, on November 10, 2025, producing lava flows on its slopes. The event follows continuous volcanic activity observed in recent days, including a pyroclastic flow that traveled about 1 500 m (4 921 feet) southwest at 15:19 LT (08:19 UTC) on November 9, lasting 188.32 seconds. The volcano remains at Alert Level III (Siaga), and residents are advised to follow official safety recommendations.

  • Heavy lake-effect snow creates whiteout conditions, disrupts travel south of Chicago

    ByTeo Blašković

    Powerful bands of lake-effect snow brought traffic on parts of Interstate 57 (I-57) south of Chicago, Illinois, to a standstill amid whiteout conditions on the morning of November 10, 2025. The National Weather Service (NWS) warned drivers to use extreme caution as snowfall rates exceeded 7 cm/h (3 in/h) in localized bands, producing near-zero visibility and hazardous travel across portions of northeastern Illinois.