Key keywords: Iowa tornado watch 2024, Iowa severe weather alert, National Weather Service Des Moines, Central Iowa tornado risk, tornado watch 10 p.m. expiration, Iowa severe weather safety guidelines, Eastern Iowa thunderstorm risk, Iowa storm preparedness tips The National Weather Service (NWS) Des Moines field office issued a tornado watch for 32 counties across central and eastern Iowa on Wednesday afternoon, with the alert set to remain active until 10 p.m. local time. The watch comes as a fast-moving cold front collides with warm, moist air flowing north from the Gulf of Mexico, creating atmospheric conditions highly favorable for the formation of rotating thunderstorms capable of producing tornadoes, hailstones larger than 1 inch in diameter, and straight-line wind gusts reaching up to 75 miles per hour. Counties included in the watch cover most of Iowa’s most populated regions, including Polk County (home to the state capital Des Moines), Linn County (Cedar Rapids), Johnson County (Iowa City), Scott County (Davenport), and Story County (Ames, home of Iowa State University). Meteorologists noted that storm cells are expected to enter western Iowa starting at 4 p.m., moving eastward across the state at a speed of 30 miles per hour, with the highest risk of tornadic activity occurring between 6 p.m. and 9 p.m. before the system exits into Illinois. Local emergency management agencies have already activated storm response protocols, with designated public shelters opening at community centers, fire stations, and school gymnasiums across all affected counties. Officials are urging residents to take immediate preparedness steps before storms arrive: assemble an emergency kit with at least three days of bottled water, non-perishable food, flashlights, extra batteries, a first-aid kit, and necessary prescription medications; identify a safe shelter space in their home, preferably a basement or an interior windowless room on the lowest floor, away from exterior walls and glass; move all outdoor furniture, grills, gardening tools, and other loose items indoors to prevent them from becoming dangerous projectiles during high winds; and ensure that mobile phone wireless emergency alerts are enabled to receive real-time tornado warning notifications. NWS officials emphasized that a tornado watch means conditions are favorable for tornadoes to form, while a tornado warning means a tornado has been sighted or detected by radar, and residents should seek shelter immediately. The agency will release hourly updates on the storm system’s progress, and local weather spotters are deployed across the state to report real-time storm activity to meteorologists. Agricultural operators are also advised to move livestock to covered shelter and secure farm equipment to minimize property damage, after a minor tornado in southern Iowa last week caused $1.2 million in damage to farm structures and crops.