How to Prepare for Severe Thunderstorms and Flash Floods Along the I-95 Corridor
The I-95 corridor runs through a heavily populated stretch of the eastern United States, linking cities, suburbs, industrial areas and major transport routes. During a summer storm outbreak, the same system can bring damaging wind and hail, frequent lightning, torrential rain and, in some cases, tornadoes.
The danger often comes from several hazards arriving at once. A commuter may face poor visibility and standing water while trees and power lines come down nearby. In urban areas, pavement and compacted soil limit how quickly rain can soak into the ground, sending runoff toward underpasses, creeks and drainage systems. The National Weather Service warns that flash flooding can develop within minutes when intense rainfall overwhelms those systems. (weather.gov)
Read the alert before the storm reaches the road
A severe thunderstorm watch means conditions are favorable for storms capable of producing severe wind or hail. A warning means the hazard is occurring or imminent, and people in the affected area should take immediate protective action. A flash flood watch signals that flooding is possible; a flash flood warning means flooding is happening or expected soon. (weather.gov)
That distinction matters during a busy travel period. A watch is the time to alter plans, charge phones, secure loose outdoor objects and identify a sturdy shelter. A warning is the time to stop driving toward the threat and move indoors or to higher ground.
Make a plan for home, work and travel
Before storms develop:
- Identify an enclosed building or hard-topped vehicle where you can shelter quickly.
- Move patio furniture, trash cans and other loose items indoors or secure them.
- Keep flashlights, batteries, medication, water and backup phone power accessible.
- Check whether your usual route includes low-lying roads, underpasses or stream crossings.
- Use official alerts from the National Weather Service, local emergency managers and NOAA Weather Radio.
When thunder is audible, go inside. The National Weather Service advises staying in a substantial building or enclosed metal-topped vehicle and waiting at least 30 minutes after the last thunder before resuming outdoor activities. Open garages, porches, picnic shelters and small sheds do not provide equivalent protection. (weather.gov)
The flooded road is the emergency
Never drive or walk through water of unknown depth. Floodwater can conceal a washed-out road, carry debris and move a vehicle even when the water does not appear deep. The National Weather Service says fast-moving water only several inches deep can knock a person down, while deeper moving water can sweep vehicles away. If water begins rising around a stalled vehicle, leave it immediately if you can do so safely and move to higher ground. (weather.gov)
Do not bypass barricades. A detour may cost minutes; a flooded underpass can become life-threatening before a driver has room to turn around.