Severe Weather Outlook: Storm Chance Overnight, High Risk Monday

Kenji Nakamura

4 min read

Post on May 20, 2025

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Overnight Storm Threat

Timing and Intensity

The overnight storm is predicted to begin around 10 PM Sunday, with the most intense period expected between 2 AM and 6 AM Monday. While the duration might be relatively short, we anticipate intense bursts of heavy rain and strong winds, potentially exceeding 40 mph in some areas. This intense period of the overnight storm could lead to localized flooding and power outages. Stay informed by monitoring local news and weather alerts.

Potential Hazards

• Heavy Rainfall and Flash Flooding: The rapid accumulation of rainfall could overwhelm drainage systems, leading to flash floods in low-lying areas. Never drive through flooded areas.
• Strong Winds and Property Damage: Strong wind gusts can damage trees, power lines, and even cause structural damage to buildings. Secure loose outdoor objects now to prevent damage.
• Localized Power Outages: The combination of heavy rain and strong winds increases the likelihood of power lines being downed, resulting in potential power outages. Charge electronic devices ahead of the storm.

High Risk Monday: Severe Weather Warnings

Increased Severity

Monday presents a significantly higher risk of severe weather. A powerful low-pressure system combined with ample atmospheric moisture creates the perfect environment for the development of severe thunderstorms. The potential for supercell thunderstorms is high, increasing the likelihood of tornadoes and widespread damaging winds. This severe weather warning should be taken very seriously.

Potential Impacts

• Increased Tornado Risk: The convergence of weather systems significantly elevates the risk of tornadoes. Monitor weather alerts closely and have a designated safe room or shelter identified.
• Damaging Winds (70+ mph): Widespread damaging winds exceeding 70 mph are possible, capable of causing significant structural damage to buildings and uprooting trees. Secure your property now.
• Widespread Power Outages: Extensive power outages are highly likely due to the combined impact of strong winds, heavy rain, and potential tornadoes. Ensure you have a backup power source if necessary.
• Significant Flooding: Prolonged and intense rainfall could lead to significant river flooding and widespread flash flooding. Know your evacuation route.
• Large Hail: Large hail is possible, capable of damaging vehicles and property.

Safety Precautions and Storm Preparation

Before the Storm

• Create an Emergency Plan: Designate a safe room in your home, and ensure everyone in your family knows the plan. This severe weather event requires a detailed plan.
• Charge Electronic Devices: Fully charge all cell phones, laptops, and other electronic devices. Have a portable charger handy.
• Gather Emergency Supplies: Stockpile at least a three-day supply of water, non-perishable food, a first-aid kit, medications, flashlights, batteries, and a portable radio.
• Secure Loose Objects Outdoors: Bring all loose objects indoors, including patio furniture, garbage cans, and anything that could become airborne.
• Know Your Evacuation Route: If you live in a flood-prone area or a tornado-vulnerable zone, know your designated evacuation route and have a plan in place.

During the Storm

• Stay Indoors: Remain indoors in a designated safe room, away from windows.
• Monitor Weather Reports: Continuously monitor weather reports from reliable sources for updates.
• Avoid Driving: Avoid driving during the storm unless absolutely necessary. Flooded roads are extremely dangerous.
• Seek Shelter (Tornado Warning): If a tornado warning is issued, seek immediate shelter in a basement or an interior room on the lowest floor of your home, away from windows.
• Never Drive Through Floodwaters: Floodwaters can be deceptively deep and swift, and driving through them can be fatal.

After the Storm

• Check for Damage: Carefully check your property for damage after the storm has passed.
• Report Downed Power Lines: Report any downed power lines immediately to your local utility company.
• Avoid Floodwaters: Avoid contact with floodwaters, as they may be contaminated.
• Be Aware of Debris: Be cautious of fallen trees, power lines, and other debris.
• Stay Informed: Stay informed about post-storm recovery efforts and any further weather advisories.

Conclusion

This severe weather outlook highlights a significant storm chance overnight and a high-risk situation on Monday. Heavy rain, strong winds, and the possibility of tornadoes necessitate immediate preparation. The potential impacts include widespread power outages, flooding, and significant property damage. Don't wait! Prepare for the severe weather now! Take action against the storm by following the safety guidelines outlined above. Protect yourself and your family from this high-risk severe weather event. For up-to-date information and further safety advice, visit your local National Weather Service website.