Categoria: watchers

Two successive atmospheric river pulses are affecting the Pacific Northwest this week, delivering multi-day heavy rainfall and flooding risk across western Washington and northwestern Oregon. The first made landfall early December 9, and a stronger second pulse is forecast to arrive late December 9–early December 10, maintaining high integrated vapor transport and major flood potential…

An intense extratropical cyclone is forming on Tuesday, December 9, 2025, over Rio Grande do Sul, bringing widespread rainfall, severe thunderstorms, and damaging winds across southern Brazil. Satellite image acquired at 12:00 UTC on December 9, 2025. Credit: NOAA/GOES-East, RAMMB/CIRA, The Watchers A deep low-pressure system over northeastern Argentina will evolve into an intense extratropical…

Large portions of the northern United States are under winter storm warnings as a strong Alberta clipper advances into the Upper Midwest and separate winter storms persist across the northern Rockies from Tuesday morning through early Wednesday, December 9-10, 2025. Satellite image of United States and Canada acquired at 18:10 UTC on December 8, 2025.…

Following the M7.6 Sanriku offshore earthquake on December 8, 2025, the Japan Meteorological Agency (JMA) warned that the likelihood of a new large-scale earthquake of Mw8 or higher occurring along the Japan Trench–Kuril Trench has increased relative to normal. While the probability remains low, JMA urged residents of Hokkaido and Tohoku’s Pacific coast to review…

A new 24/7 live stream showing Mayon volcano in 4K resolution went online on December 8, 2025, from Legazpi in Albay Province, Philippines. The camera is positioned about 14 km (9 miles) south-southeast of the volcano and provides a continuous view of the summit area. Mayon Volcano is a 2 462 m (8 077 feet)…

A rapidly deepening Atlantic low, named Storm Bram, is forecast to pass close to the western coasts of Ireland, Northern Ireland and the Outer Hebrides on Tuesday, December 9, 2025, bringing very strong southerly winds, heavy rain and exceptionally high seas. The system forms part of an active North Atlantic storm train linked to recent…

The Geminid meteor shower, one of the year’s strongest and most reliable, will reach its peak during the night of December 13-14, 2025, producing up to 150 meteors per hour under dark, moon-free skies across much of the Northern Hemisphere. A waning crescent Moon rising after 02:00 local time (LT) will limit interference during the…

Health complications are spreading in flood-stricken Indonesian provinces of North Sumatra, West Sumatra, and Aceh, as medical facilities face severe disruptions. Officials confirm 940 deaths and 276 people missing following Cyclone Senyar’s impact, as of Sunday, December 7, 2025. Flooding in Sumatra, Indonesia on November 25, 2025. Credit: BPBD Severe flooding caused by Tropical Cyclone…

Auroras are expected across much of the northern United States, southern Canada, and northern Europe on December 9, 2025, following a forecasted geomagnetic disturbance caused by a coronal mass ejection (CME) produced during the December 6 M8.1 solar flare. Image credit: The Watchers According to the NOAA’s Space Weather Prediction Center (SWPC), the CME associated…

A major earthquake registered by the Japan Meteorological Agency (JMA) and USGS as M7.6 struck off the east coast of Aomori Prefecture, Japan, at 14:15 UTC (23:15 JST) on December 8, 2025. Both agencies are reporting a depth of 50 km (31 miles). According to the Pacific Tsunami Warning Center (PTWC), hazardous tsunami waves are…