St. Louis, MO – A combination of gusty winds and dry air will sharply increase fire danger across eastern Missouri Wednesday afternoon, creating conditions where fires can spread rapidly within minutes.
According to the National Weather Service in St. Louis, south winds and low relative humidity will peak during the afternoon hours Wednesday, elevating fire risk across much of the region, including St. Louis, Jefferson County, and surrounding parts of eastern Missouri and southwest Illinois.
Dry grasses and agricultural fields remain especially vulnerable, where any spark could trigger fast-moving flames. Officials warn that fires may become erratic and difficult to control under these conditions, particularly in open rural areas and along roadways.
Residents are urged to avoid outdoor burning, properly dispose of cigarettes, and refrain from using equipment that could create sparks. Even routine activities like mowing dry grass or towing chains can ignite fires in these conditions.
The elevated risk is expected to ease by Wednesday evening as humidity levels recover, but additional advisories may be issued if dry conditions persist later this week.
