Solar activity reached high levels on November 5, 2025, as Region 4274 (N24E40) produced two powerful M-class flares – an M7.4 at 11:19 UTC and an M8.6 at 22:07 UTC. The full-halo CME from the first event is expected to reach Earth late November 6 to early November 7, likely producing G3 – Strong geomagnetic storm conditions and visible auroras across Canada and the northern United States.
A record-breaking bomb cyclone ripped through Newfoundland from November 4 through 5, 2025 bringing along Category 2 hurricane force winds, coastal flooding, and causing widespread damage across the region.
An early-season stratospheric warming event is forecast to weaken the polar vortex in the coming weeks, potentially influencing winter 2025–26 weather across North America and Europe.
Two powerful X-class solar flares erupted on November 4, 2025 — an X1.8 from Region 4274 and an X1.1 from a region just beyond the east limb — launching CMEs largely off the solar limb. NOAA forecasts G1 – Minor to G2 – Moderate geomagnetic storming from late November 6 into 7 as Earth may experience a glancing shock from the flares combined with a coronal hole high-speed stream.
At least 66 deaths have been confirmed, while 26 remain missing since Typhoon Kalmaegi (locally named Tino) made landfall over the Philippines on November 4, 2025. Nearly 390 000 people have been evacuated as recovery operations continue across the country.
A major solar flare measuring X1.8 erupted from Active Region 4274 at 17:34 UTC on November 4, 2025. The event started at 17:15 and ended at 17:51 UTC. This is the first X-class flare since the impulsive X1.9 from Active Region 4114 at 23:50 UTC on June 19, 2025.
Four back-to-back atmospheric rivers are forecast to make landfall along the U.S. West Coast between November 3 and November 9, 2025. Heavy rainfall totals of 76–130 mm (3–5 inches), with isolated amounts up to 177 mm (7 inches), could lead to localized flooding in parts of northern California and Washington State throughout the week.
A strong M6.3 earthquake struck northern Afghanistan near Mazar-e Sharif at 20:28 UTC on November 2 (00:58 local time, November 3), 2025, killing at least 20 people and injuring more than 300, according to preliminary figures from the Ministry of Public Health. Rescue efforts continue in the mountainous districts of Balkh and Samangan provinces.
Severe Tropical Storm Kalmaegi (locally named Tino) is rapidly intensifying over the Philippine Sea and is expected to reach typhoon strength prior to landfall in the central Philippines by November 3–4, 2025.
A large landslide struck Marakwet East in western Kenya late Saturday night, November 1, 2025, killing at least 21 people and leaving more than 30 missing. The event followed days of intense rainfall across the region, triggering widespread flooding and ground failures.
