Severe Weather Outlook: High Storm Chance Overnight, Monday Potential

Henrik Larsen

4 min read

Post on May 21, 2025

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Overnight Storm Threat

The greatest risk of severe weather will occur overnight Sunday into early Monday morning. The storm prediction indicates we should expect:

• High winds: Gusts up to 60 mph are possible. Secure any loose outdoor furniture or objects that could become airborne and cause damage. Strong winds can down trees and power lines, leading to power outages.
• Heavy rainfall: Significant rainfall is anticipated, potentially leading to flash flooding in low-lying areas and poor drainage areas. Avoid driving through flooded roads, as the water depth may be deceiving and hazardous.
• Possible hail: Pea-sized to quarter-sized hail is possible in certain areas. Hail can damage property and vehicles, so protect your car and vulnerable outdoor items.
• Isolated tornadoes: While not guaranteed, the conditions are favorable for isolated tornado development. Know your local tornado warning sirens and have a designated safe room or shelter identified.

Areas Most Affected

The counties expected to experience the most severe weather include Cook County, DuPage County, and Will County in Illinois. Residents in these areas should pay particularly close attention to weather alerts and warnings issued by the National Weather Service. Check your local news for specific updates on the Chicago storm prediction and any localized warnings. For those in Westchester County, NY, be aware of the potential for flooding and high winds. Specific advisories for Westchester County weather will be issued as the storm develops.

Monday's Weather Forecast

While the intensity may lessen into Monday, the threat of severe weather will not completely disappear. Monday's weather forecast anticipates:

• Lingering showers and thunderstorms: Scattered showers and thunderstorms are expected to persist throughout the day. While less intense than the overnight storms, these could still produce heavy downpours and localized flooding.
• Strong winds: Strong winds will likely continue throughout Monday, potentially causing further damage to trees and power lines.
• Potential for localized flooding: Areas that experienced heavy rainfall overnight could experience further flooding on Monday due to saturated ground conditions.
• Continued monitoring: Continued monitoring of the situation is crucial. Stay updated on the latest weather alerts and forecasts.

Safety Precautions and Preparation

Preparing for severe weather is essential. Take the following precautions:

• Secure loose objects: Secure or bring inside any loose objects around your property that could be blown away by strong winds.
• Charge electronic devices: Fully charge all your electronic devices, including cell phones, laptops, and tablets, in case of power outages.
• Emergency shelter plan: Have a plan for emergency shelter, including a designated safe room or basement. If you live in a mobile home or an area prone to flooding, know your evacuation route and have a plan to reach a designated safe location.
• Monitor weather alerts: Stay informed by continuously monitoring weather alerts and updates from reliable sources such as the National Weather Service.
• Recognize severe weather signs: Familiarize yourself with the signs of approaching severe weather, such as darkening skies, strong winds, and hail.
• Emergency kit: Have an emergency kit ready with water, non-perishable food, flashlights, batteries, a first-aid kit, and any necessary medications.

Driving in Severe Weather

If you must drive, avoid flooded roads and allow extra time for your journey. Be prepared for sudden changes in road conditions due to heavy rain, strong winds, and potential hazards like downed trees or power lines. Driving during severe weather is extremely dangerous and should be avoided if possible.

Conclusion

The severe weather outlook for tonight and Monday indicates a high likelihood of storms and potentially dangerous conditions. Heeding the safety precautions outlined above is crucial to ensure your safety and well-being. Stay informed about the evolving severe weather outlook and weather alerts from reputable sources. Remember to check regularly for updates on the severe weather forecast and plan accordingly for a safe and secure couple of days. Be prepared – your safety is paramount during this period of high storm chance. Take action now to prepare for the potential severe weather and protect your family and property.