Des Moines, Iowa – A single spark could race across dry fields in southern Iowa by early Friday afternoon as strong winds and low humidity create prime conditions for fast-moving grass fires.
According to the National Weather Service in Des Moines, a Red Flag Warning is in effect from noon until 6 p.m. Friday for 10 counties across southern and southeastern Iowa, including Union, Clarke, Lucas, Taylor, Ringgold, Decatur, Monroe, Wapello, Wayne and Appanoose counties. Sustained west to northwest winds will range from 15 to 25 mph, with gusts reaching 30 to 35 mph. Relative humidity will fall between 20% and 30%, drying fine fuels even further.
Communities such as Ottumwa, Creston, Chariton, Centerville and Corydon face the highest risk during peak afternoon heating. Open farmland, roadside ditches and construction zones could see flames spread quickly if ignited.
Officials strongly discourage outdoor burning Friday. Avoid parking vehicles on dry grass, secure trailer chains to prevent sparks and delay any fieldwork that could generate heat or friction. Fire crews warn that once a blaze starts under these conditions, containment becomes difficult.
Winds are expected to ease after 6 p.m., but any fire that ignites before sunset could spread rapidly. Additional fire weather alerts may be issued if conditions persist into the weekend.
