Managing a Commercial Vehicle During Severe Weather
The change of season means shifting weather patterns, which can result in severe thunderstorms, high winds, flooding and even tornadoes. Driving a commercial vehicle in a storm can present unique challenges due to your rig’s size, weight and aerodynamics. Understanding how environmental factors can impact driving and preparing for inclement weather can help you stay safe on the road.
How Severe Weather Can Affect Your Vehicle
Visibility: Fog, rain, snow, hail and ice reduce visibility, limiting how far you can see around your commercial vehicle. That type of weather also affects your ability to navigate safely around other drivers.
Road conditions: Temperature changes can make wet roads slick and decrease tire traction. That could result in jackknifing and hydroplaning, especially if you brake heavily.
Vehicular challenges: Driving in extreme temperatures, strong winds and heavy precipitation may decrease fuel efficiency as your engine works harder to propel your vehicle forward.
Route disruptions: Downed trees, flooding and snowdrifts could cause road damage and closures that require you to find an alternative route.
Severe Weather Terminology
There are different terms used to classify storm severity. It’s important to know the differences between watches, warnings and advisories to avoid putting yourself in a dangerous situation.
Thunderstorm Watch vs. Warning
Thunderstorm watch: Weather conditions are likely to result in severe storms that could produce hail, flooding and wind gusts. Monitor weather updates and stay alert in case you need to change routes.
Thunderstorm warning: Severe thunderstorms have been spotted on radar within a specified area. Reduce your speed, turn on your headlights or pull over if visibility is poor.
Tornado Watch vs. Warning
Tornado watch: Severe thunderstorms may develop into tornadoes in or near the watch area. Prepare for worsening conditions and identify nearby shelters so you can take cover if necessary.
Tornado warning: A tornado warning is issued once a tornado has been spotted or appears on radar. If you’re in an affected area, pull over and find a safe place to wait out the storm as soon as possible.
H3: Flood Watch vs. Advisory
Flood watch: This weather alert implies that flooding has not occurred, but weather conditions could result in high water levels. Identify alternate travel routes and check in with weather reports periodically.
Flood advisory: Flooding is happening or imminent in a specific area. Use caution in flooded areas and avoid driving through standing water. An advisory can elevate to a warning, indicating severe flooding that can cause damage to low-lying areas and infrastructure.
Fog Advisory
A fog advisory signals visibility is reduced to a half mile or less. If you’re driving during a fog advisory, reduce your speed, increase following distance, use low beams and avoid sudden braking. Fog can present a challenge if you operate a tall commercial vehicle, as increased elevation affects your ability to see your surroundings and make safe lane changes.
How to Prepare for Driving in Severe Weather
- Complete a thorough pre-trip inspection that includes your tires, brakes, lights, fluid levels and wiper blades.
- Pack an emergency kit with first aid supplies, a flashlight, reflective triangles, a blanket and traction support.
- Check the weather in your area and along your route before you head out.
- Identify rest areas and truck stops in case you encounter inclement weather.
What To Do in Unsafe Conditions
Harsh weather can sneak up on you, so here’s what to do when driving a semi in a storm:
- Search for a place to pull over, like a rest area or wide shoulder.
- Turn on your hazards and ease off the accelerator to decrease your speed slowly.
- Find level ground or use chock wheels. Then engage your parking brake, keeping your wheels pointed straight.
- If conditions permit, exit the cab and ensure your cargo is secure.
- Share your location with dispatch and update them regularly until the storm passes.
- Record delays and weather alerts in your report.
- Contact roadside assistance services if you require support.
Commercial Vehicle Maintenance at Bauer Built
Staying prepared starts with proper maintenance. Whether you need mechanical repairs or preventative service, Bauer Built can help you keep your fleet rolling. Stop by any of our locations across the Midwest for personalized assistance.
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