The Alaska Volcano Observatory (AVO) raised Mount Kupreanof to Aviation Color Code Yellow and Volcano Alert Level Advisory at 17:01 UTC on May 12, 2026, after seismic activity and sulfur dioxide emissions increased over recent months at the Alaska Peninsula volcano.
Indonesia’s Center for Volcanology and Geological Hazard Mitigation (PVMBG) raised the alert level for Lewotobi Laki-laki in East Flores, East Nusa Tenggara, from Level II to Level III at 13:00 WITA (05:00 UTC) on May 12, 2026. The decision followed increased deep volcanic earthquakes, persistent non-harmonic tremor, inflation, and surface activity from May 1 to 11. Residents and tourists were told to avoid activity within a 5 km (3.1 miles) radius of the eruption center.
Severe thunderstorms produced giant hail up to 11.4 cm (4.5 inches), damaging winds, power outages, and road blockages across parts of Texas on May 10 and 11, 2026, after the Storm Prediction Center (SPC) placed parts of west-central and north-central Texas under an Enhanced Risk. SPC storm reports included baseball-size hail in several counties, wind damage near Hamilton, more than 18 000 power outages in the Austin area, and gusts up to 135 km/h (84 mph) near Corpus Christi NAS.
Severe storms and heavy rain killed 4 people and injured 16 others across Khyber Pakhtunkhwa, northwestern Pakistan, on May 10–11, 2026, after walls and roofs collapsed in several districts. The affected districts include Mardan, Swabi, Malakand, and Shangla, while Pakistan’s NDMA warned of continued rain, flash flooding, debris flows, and elevated GLOF risk in northern mountain catchments.
Severe storms affecting South Africa from May 4 to 11, 2026, have caused at least 4 deaths, displaced more than 2 000 people, and disrupted infrastructure and essential services across multiple provinces, prompting authorities to declare a national disaster. The declaration covers the Western Cape, North West, Free State, Eastern Cape, Northern Cape, and Mpumalanga provinces. This is the fifth national disaster declaration since November 2025 and the fourth so far this year.
Indonesia’s North Halmahera government permanently closed climbing access to Mount Dukono after 3 climbers were found dead following the May 8, 2026, eruption on Halmahera Island, North Maluku. BNPB said the area had already been under a total climbing closure since April 17, before the closure was reinforced through a May 8 Regent decision barring operators, managers, and climbing-service providers from issuing permits.
Severe thunderstorms continued across parts of northern Italy, Slovenia, Croatia, and the western Balkans on Monday, May 11, 2026. ESTOFEX forecasters warn the severe weather corridor is expected to shift east on Tuesday, with Level 2 risk areas extending from southeastern Romania through Bulgaria into northeastern Greece and northwestern Turkey. Large hail, localized heavy rainfall, and severe wind gusts remain the primary hazards.
The NWS Storm Prediction Center (SPC) issued a Critical fire weather forecast for parts of eastern Montana into west-central North Dakota valid from 12:00 UTC on May 11 through 12:00 UTC on May 12, 2026, as multiple National Weather Service offices warned that strong winds, low humidity, dry fuels, and frontal wind shifts would support rapid wildfire spread across parts of the northern and central Plains.
A large wildfire burning in western Broward County, Florida, has scorched nearly 2 023 ha (5 000 acres) as of May 11, 2026, sending smoke toward the Pembroke Pines area while fire crews worked to contain the blaze. It was 20% contained after burning approximately 1 942 ha (4 800 acres), according to the Florida Forest Service (FFS).
Hundreds of earthquakes struck the Brawley area of Imperial County, California, from May 9 to 11, 2026, including the strongest reported M4.7 event at 07:10 UTC on May 10. The swarm caused infrastructure damage, including water line breaks and road damage.
