National Weather Service United States Department of Commerce

Hurricane Lowell to Impact Kauai; Heat Continues in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai today. Impacts such as high surf and heavy rain could impact all of the islands. A Hurricane Warning is in effect for Kauai, Niihau and the surrounding coastal waters. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest this week with limited nighttime relief. Read More >

On Tuesday, air quality in the St. Louis region is forecast to be unhealthy for elderly individuals, children, and those with heart/lung conditions due to relatively high levels of ozone. For more information go to http://www.airnow.gov.
The heat will return to the area today with high temperatures in the 90s. The highest temperatures and humidity will be over central Missouri where afternoon and early evening heat indexes will climb to around 105 degrees where a heat advisory is in effect.
Showers and thunderstorms are likely late Wednesday into Thursday as a cold front moves across the area. The strongest storms will be capable of producing gusty winds, small hail, and locally heavy rainfall.