A tornado outbreak is expected today and tonight from parts of the lower Mississippi Valley into the Mid-South and lower Ohio Valley. Numerous tornadoes, along with multiple long-track EF3+ tornadoes, appear likely. A multi-day, potentially historic heavy rainfall event may produce catastrophic and life-threatening flooding today through Saturday from the Ozarks into the Ohio River Valley. Read More >
National Weather Service Dissemination
National Program
Click on a state to view coverage. |
Coverage is affected by many factors. Read the Coverage Map Notes below to understand these factors on the state and individual maps. |
![]() |
The coverage statistics and maps are calculated using a computer model and station data assuming ideal conditions. Coverage may be 5 to 10 percent below the computer predicted coverage for the following reasons:
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
National Weather Service Dissemination
1325 East West Highway
Silver Spring, MD 20910
Comments? Questions? Please Contact Us.