Recent heavy rainfall across the Northeast has demonstrated how quickly flash flooding can disrupt businesses, damage property, and create hazardous conditions for employees.

By Jill King Greenwood, Marketing Manager

Published Jul 10, 2026 12:08 PM EDT | Updated Jul 10, 2026 12:08 PM EDT

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Flooding in Kenner, Louisiana, on Thursday, June 18, 2026, after significant rainfall from Tropical Rainstorm Arthur.

Executive Summary

Flash flooding can happen with little warning and impact businesses far beyond rivers and coastlines. Understanding the realities of flood risk helps organizations make informed decisions to protect employees, operations, and property. By separating common myths from facts, businesses can strengthen emergency preparedness and reduce the potential impact of flooding.

Key Takeaways

• Flooding can occur in urban, suburban, and inland areas—not just near rivers or coastlines.
• Even a few inches of floodwater can create dangerous conditions for people and vehicles.
• Businesses outside designated floodplains can still experience damaging flash floods.
• Standard commercial insurance policies may not cover flood damage without separate flood insurance.
• Proactive planning and timely weather intelligence help improve business resilience.

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First responders in Jackson County, Kentucky, prepare for swift-water rescues on June 27, 2026, after torrential rain caused flooding. (Image credit: Sand Gap Fire Department)

Recent heavy rainfall across the Northeast has demonstrated how quickly flash flooding can disrupt businesses, damage property, and create hazardous conditions for employees. Preparing before severe weather develops is one of the most effective ways to reduce risk. Understanding the facts about flooding allows organizations to make better safety decisions and strengthen business continuity plans.

One of the most common misconceptions is that flooding only affects properties near rivers and coastal areas. In reality, flooding can occur almost anywhere. Heavy rainfall, rapid snowmelt, overwhelmed storm drains, and poor drainage systems can cause flooding in cities, suburbs, and inland communities, making every business vulnerable under the right conditions.

Another myth is that floodwaters are only dangerous when they are deep. The truth is that even six inches of water can cause drivers to lose control of a vehicle, while one foot of water can float many passenger vehicles. Fast-moving water just two feet deep can carry away most vehicles, creating life-threatening conditions. Small amounts of floodwater can also damage buildings, equipment, and critical infrastructure.

Many businesses also assume that being outside a designated floodplain means they are safe from flooding. While floodplains face a greater risk, flash floods caused by intense rainfall or infrastructure failures can affect locations well beyond mapped flood zones. Every organization should evaluate its flood risk regardless of its location.

Another important misconception involves insurance coverage. Standard commercial property insurance often does not include flood damage, meaning businesses may need separate flood insurance to protect their buildings, inventory, and equipment. Reviewing your insurance coverage before flood season can help prevent costly surprises after a flood event.

Action Steps

• Review your organization's flood emergency and business continuity plans.
• Confirm employees know evacuation routes and emergency communication procedures.
• Evaluate your property's drainage and identify areas vulnerable to flooding.
• Review your insurance coverage to determine whether flood protection is included.
• Use AccuWeather For Business to receive timely weather intelligence that supports faster, more informed decisions before and during flash flooding.

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Repeated storms threaten high winds, flooding over Midwest, Northeast