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 >

May 12, 2010
Heavy Rain & Flooding

A frontal boundary stalled near the Ohio River during the morning of May 12. This led to numerous rounds of thunderstorms which dropped widespread heavy rain across parts of southern Ohio, southeast Indiana and northern Kentucky. Widespread rainfall amounts in excess of 2 inches were common, with some reports over 3 inches. This same area was hit with heavy rain just a week prior, which made it particularly prone to flooding. Several reports of flash flooding were received including numerous road closures and streams overflowing their banks.

Estimated Event Rainfall (Inches)