Roadwise States Nebraska Driving lessons Rain, flooding, fog and wind Nebraska driving lesson · Special Driving Conditions
Rain, flooding, fog and wind A 3-minute lesson from the Nebraska course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Read time 3 minutes
Course unit Special Driving Conditions
Checkpoint questions 6
Source pages 70 Nebraska weather changes quickly. Each condition calls for different lights, speeds and choices, and sometimes the right choice is not to drive through at all.
Hydroplaning When your tires ride on a thin film of water instead of the road. To prevent it, slow down.
Handbook p. 70 ↗ In rain: Reduce speed for the road surface condition Disengage cruise control if necessary Increase your following distance Use low-beam headlights Handbook p. 70 ↗ 6 inches Water that reaches the bottom of most passenger cars, causing loss of control or possible stalling
Handbook p. 70 ↗ 2 feet Moving water that can carry away most vehicles, including SUVs and pickup trucks
Handbook p. 70 ↗ Flooded roads: Don't drive through flooded areas; turn around and find another route Even if water looks shallow, don't cross: it can hide dips or a washed-out road surface Be especially cautious at night, when visibility is limited No other route? Go to higher ground and wait for the water to go down Handbook p. 70 ↗ In fog: Use low-beam headlights Reduce speed and proceed with extreme caution Travel on roads posted 40 mph or more isn't recommended when visibility is under 1/4 mile Handbook p. 70 ↗ In high wind: Wind affects all vehicles, especially small and high-profile ones Be ready to correct steering in open spaces after a protected area Expect sudden wind changes when meeting large trucks and buses Watch for high wind advisories Handbook p. 70 ↗ Put it into practice
Fog drops visibility below a quarter mile on a highway posted at 65 mph. Travel isn't recommended. If you're already out, use low beams, slow down and proceed with extreme caution.
Check your understanding Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
On roads posted 40 mph or more, travel is not recommended when fog reduces visibility to less than: 1/4 of a mile 1/2 of a mile 1/8 of a mile 1 mile Answer: 1/4 of a mile
Travel isn't recommended below 1/4-mile visibility on roads posted 40+ mph.
Handbook p. 70 ↗ Hydroplaning happens when: Tires overheat on dry pavement Brakes lock up on gravel A tire loses all its air pressure Tires ride on a thin film of water instead of the road Answer: Tires ride on a thin film of water instead of the road
Hydroplaning occurs when tires ride on a film of water.
Handbook p. 70 ↗ About how much water reaches the bottom of most passenger cars, risking stalling or loss of control? Six inches One inch Twelve inches Twenty-four inches Answer: Six inches
About six inches of water reaches the bottom of most cars.
Handbook p. 70 ↗ About how much moving water can carry away most vehicles, including SUVs and pickups? Six inches Two feet One foot Four feet Answer: Two feet
About two feet of moving water can carry away most vehicles.
Handbook p. 70 ↗ In fog, you should use: High beam headlights Parking lights only Low beam headlights Fog lights with high beams Answer: Low beam headlights
Use low beam headlights in fog.
Handbook p. 70 ↗ Even if a flooded road looks shallow enough to cross safely, you should never attempt it. True False Answer: True
Floodwaters can hide damage or dips, so crossing is never advised.
Handbook p. 70 ↗ Previous lesson Night driving Next lesson Distracted and aggressive driving More in Special Driving Conditions About the source Roadwise’s Nebraska course uses the driver handbook edition supplied with this study pack. This lesson cites source pages 70. The linked PDF is a third-party mirror of the handbook, rather than a government-hosted page.
Open the handbook source PDF · View the source edition
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