Multiple heat advisories were issued across portions of California, Oregon, Washington, and Nevada on June 15, 2026. Temperatures are forecast to exceed 40°C (104°F) and could reach up to 44.4°C (112°F) in Trinity County, California.
At least one person was killed, and 22 others were injured after damaging winds caused a tent to collapse at a church south of Moneta on June 12, 2026.
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.
Saskatchewan’s first EF3 tornado since 2010 struck near Oxbow on June 9, 2026. The tornado tracked 32 km (20 miles) on the Canadian side of the border, producing estimated peak winds of 245 km/h (152 mph). It claimed the life of a pet animal, destroyed buildings at a farm property, and caused damage that extended into North Dakota, United States.
An EF3 tornado struck the Washburn area of central Illinois on June 10. 2026. The tornado reached a maximum width of 777 m (2 550 feet) and produced winds of up to 249 km/h (155 mph). Three EF1 tornadoes were confirmed near Lincoln’s New Salem, Athens, and Springfield. An EF0 tornado was also reported near Ipava.
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.
The November Fire burned 227 ha (560 acres) at Marine Corps Base Camp Pendleton in Southern California on June 10, 2026, prompting evacuations and a large firefighting response before crews stopped forward spread and lifted all evacuation orders later the same day.
The Storm Prediction Center (SPC) has placed parts of the Upper Mississippi Valley, Midwest and Great Lakes region under Enhanced Risk (Level 3 of 5) through June 11 and 12, 2026, warning that thunderstorms may produce hail larger than 5 cm (2 inches), wind gusts exceeding 120 km/h (75 mph) and several tornadoes, including a few strong tornadoes.
