Overview
- An enhanced severe risk is in place for the Chicago area on Tuesday with the Storm Prediction Center and local forecasters warning an intense, fast‑moving line of storms that could produce destructive wind gusts near 80 mph, brief tornadoes and hail.
- Forecasters expect one to two inches of additional rain across parts of the Midwest and Mid‑Atlantic through Wednesday evening, increasing the danger of flash flooding on already saturated soils and near recent burn scars.
- Monsoonal thunderstorms are producing heavy rain, lightning and flash‑flood warnings in the U.S. Southwest with local offices urging people to avoid washes and low‑lying roads during storms.
- A Pacific trough and stronger marine layer are bringing a cooler trend to parts of the U.S. West but higher‑elevation fire danger remains and coastal flood advisories warn of minor flooding during the highest evening tides.
- The Met Office has issued an amber extreme‑heat warning for parts of England for Thursday as drought and hundreds of wildfires this summer have left fire services stretched and increased risks to health and transport.