Weather Briefing: Severe Thunderstorm Outlook – Central Iowa
Issued by: National Weather Service Des Moines
Date: Thursday, April 25, 2025
Concerned Period: Monday, April 28, 2025 – Afternoon and Evening
🔶 Overview:
The National Weather Service in Des Moines is monitoring a potentially significant severe weather event forecast to impact Central Iowa on Monday, April 28th. As of the current outlook, there is a 30% risk (Level 3 of 5) for strong to severe thunderstorms. This level of risk indicates the possibility of widespread severe storms, some of which may be intense.
🕒 Timing:
- Main Threat Window: Monday afternoon into the evening hours
- Precise timing will be refined as new forecast data becomes available over the weekend.
🌪️ Severe Weather Hazards:
All severe weather hazards are currently possible with this system:
- Tornadoes – Including the potential for one or more strong tornadoes (EF2+)
- Large Hail – Greater than 1 inch in diameter possible
- Damaging Winds – Wind gusts may exceed 60–70 mph in the strongest storms
📍 Affected Area:
- Central Iowa – Including (but not limited to) the cities of Des Moines, Ames, Marshalltown, Fort Dodge, Newton, and surrounding communities
- The exact storm track and extent of impacts are still subject to change
🔎 What to Watch For:
- Updates to the Risk Level and Geographic Coverage – Confidence in the forecast is increasing, but changes are possible in the next 72 hours.
- Timing Adjustments – Monitor for refinements in the expected onset and duration of storm activity.
- Storm Mode – Depending on how the system evolves, the region may experience supercells, a squall line, or both.
✅ Recommended Actions:
- Stay Weather-Aware: Continue monitoring trusted local sources and NWS updates through the weekend.
- Review Severe Weather Plans: Especially for schools, businesses, and event organizers.
- Check Weather Radios and Alerting Systems: Ensure they are in working condition.
- Be Prepared to Act: Should watches or warnings be issued on Monday, have a plan to take shelter quickly.
🔗 More Information:
Visit the Des Moines NWS Severe Weather Dashboard: https://www.weather.gov/dmx/dsssevere
