Tropical Storm Arthur formed about 100 km (60 miles) east-northeast of Port O’Connor, Texas on June 17, 2026 and is forecast to move northeastward along the Gulf Coast before tracking inland over southwestern Louisiana.
A strong and shallow earthquake registered by the USGS as M6.7 hit 43 km ESE of Palu, Indonesia, at 03:27 UTC on June 16, 2026. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting the same magnitude and depth.
The Icelandic Meteorological Office (IMO) raised the Aviation Color Code for Bárðarbunga volcano to Yellow at 00:43 UTC on June 14, 2026, after an intense earthquake swarm began in the northwestern part of the caldera following a M4.8 earthquake at 20:14 UTC on June 13.
Seven tornadoes, including two rated EF3, struck parts of Illinois and Indiana on June 11, 2026. The storms injured at least seven people, severely damaged 44 homes in Streator, caused minor damage to 35 others, and damaged at least 200 buildings in Merrillville.
The Storm Prediction Center (SPC) said a fast-moving convective system that crossed parts of the Midwest and Great Lakes on June 10, 2026, has been preliminarily classified as a derecho after producing widespread wind damage, downed power lines, and measured gusts exceeding 145 km/h (90 mph).
Severe storms that produced damaging tornadoes outside Chicago killed one person in Iowa, damaged communities in Illinois and Indiana, and left hundreds of thousands without power across the Midwest and Northeast on Thursday, June 11, 2026. As of 03:00 CDT (08:00 UTC) on Friday, more than 650 000 customers were without power across 8 states, including at least 250 000 in Illinois and 170 000 in Indiana.
A severe thunderstorm outbreak is forecast across parts of the Midwest and Great Lakes this afternoon and evening, with the highest risk focused on northern Illinois, far eastern Iowa, and far southern Wisconsin.
Up to 150 residents were displaced after flash flooding struck communities across western Manitoba, Canada, following an extreme rainfall event that dropped nearly 150 mm (6 inches) of rain in parts of the Swan Valley region from late June 7 into the early hours of June 8, 2026. Local authorities declared states of emergency as floodwaters damaged roads, washed out sections of Highways and bridges, and threatened dam failure near Harvey Lake.
A M7.8 earthquake off southern Mindanao left at least 32 people dead, injured 134 others in preliminary civil-defense figures, and caused widespread damage in General Santos and nearby areas on June 8, 2026.
The Storm Prediction Center upgraded parts of the Mid-Atlantic and northern High Plains to an Enhanced Risk for severe thunderstorms on June 6, 2026, as severe storms and heavy rainfall continued across parts of the Plains, Mississippi Valley, Ohio Valley, and Northeast through June 8.
