Strong to severe thunderstorms may bring areas of excessive rainfall and flooding over parts of the southern Plains today through Friday. Hot to dangerously hot temperatures are forecast across portions of the Pacific Northwest and southern Great Basin today. Gusty winds, dry, and hot conditions will bring critical fire weather to parts of central Washington state today. Read More >
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. Actual coverage may be 5 to 10 percent below the computer-predicted coverage due to the following factors: