Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

April 8-9, 2020
Severe Weather and Tornadoes

Severe thunderstorms developed over Indiana during the afternoon on April 8. These storms moved east-southeast through the Cincinnati area during the evening, continuing into south-central Ohio and northeastern Kentucky through just after midnight. The storms evolved into a well-organized bow echo, producing widespread straight line wind damage, and resulting in the confirmation of 19 tornadoes. Supercell thunderstorms also developed ahead of the bow echo, producing hail to golf ball size in parts of southern Ohio.