Driving in Rain & Fog in Texas: Safety Tips, Laws & What You Must Know
Texas weather changes fast. Heavy rain, dense fog, and flash flooding cause thousands of crashes every year. Knowing how to drive in these conditions can save your life.
Hydroplaning: The #1 Rain Danger
Hydroplaning occurs when tires ride on water instead of road. It can happen at 35 mph.
How to Prevent
- Reduce speed — especially first 10 min of rain
- Check tire tread — minimum 2/32” (penny test)
- Avoid puddles and standing water
- No cruise control in rain
If You Hydroplane
- Do not brake hard — ease off gas
- Steer straight or gently where you want to go
- Wait for tires to regain contact
Headlight Laws in Rain
Texas requires headlights on when:
- Wipers are in use
- Visibility under 1,000 feet
- Between sunset and sunrise
Fine: up to $200.
Following Distance
| Condition | Distance |
|---|---|
| Dry roads | 3 seconds |
| Wet roads | 4–5 seconds |
| Heavy rain | 6+ seconds |
| Fog | 6+ seconds |
Driving in Fog
- LOW beams only — high beams reflect off fog
- Fog lights if equipped
- Reduce speed significantly
- Use road edge or lane markings as guide
- Do not stop on road — pull completely off
Flash Flooding: Turn Around, Don’t Drown
Texas is #1 for flash flood deaths. Never drive through flooded roads.
- 6 inches can knock you down
- 12 inches can float a car
- 24 inches can carry away trucks/SUVs
Frequently Asked Questions
At what speed does hydroplaning start?
As low as 35 mph with worn tires or standing water.
Should I use high beams in fog?
Never. They reflect off fog and make visibility worse. Use low beams.
Is it illegal to drive through a flooded road?
Yes in many areas. Barricaded flood zones carry fines and rescue costs.
Do I need headlights in drizzle?
Yes. Texas law requires headlights when wipers are in use.
Is weather driving in the course?
Yes. Topic 7 covers rain, fog, wind, and ice driving.
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