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.
A major long-duration solar flare measuring X4.0 erupted from Active Region 4274 at 08:30 UTC on November 14, 2025, producing a fast CME. The event started at 07:44 and ended at 08:40 UTC.
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.
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.
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.
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.
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.
A major solar flare registered as X5.1 erupted from Active Region 4274 at 10:04 UTC on November 11, 2025. The event started at 09:49 UTC and ended at 10:17 UTC.
A strong geomagnetic storm is forecast for November 12, 2025, following the expected arrival of two coronal mass ejections (CMEs) from Active Region 4274. The event is likely to reach G3 – Strong or higher levels, making aurora visible as far south as Pennsylvania, Iowa and Oregon.
A short-lived tornado-like vortex formed above the lava fountains in Halemaʻumaʻu crater, Kīlauea volcano, Hawaiʻi, around noon on November 9, 2025, during Episode 36 of the ongoing summit eruption. The phenomenon, caused by intense heating and localized wind shear, was captured on video from within Hawaiʻi Volcanoes National Park.
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.
