How to prepare for and survive extreme weather while on the road (storms, heatwaves)
Traveling when the weather turns extreme can be stressful, but preparation and calm choices keep you safe and comfortable. This guide gives practical, easy-to-follow steps for storms and heatwaves so you can anticipate hazards and respond quickly while on the road.
Step 1: Check forecasts before leaving
Spend 5–10 minutes checking two reliable sources (local meteorological service and a national app) for hourly updates for the next 48 hours. Note warnings like watch vs. warning and expected start/end times so you can alter route or schedule to avoid peak danger windows.
[Illustration: person looking at weather app and printed map on car hood]
Step 2: Pack an emergency kit
Assemble a kit containing: 4 liters water per person for 24 hours, 2,000 calories of nonperishable food, first-aid supplies, flashlight with extra batteries, portable phone charger (10,000 mAh), emergency blanket, and basic tools. Store items in a waterproof bag within easy reach in the vehicle.
[Illustration: open waterproof bag with supplies laid out in trunk of car]
Step 3: Maintain vehicle readiness
Keep fuel at least half full in heat and 3/4 full ahead of storm-prone travel; check tire pressure and tread, top up coolant and oil, and have jumper cables and a spare tire. A well-maintained vehicle reduces the chance of breakdowns in dangerous conditions.
[Illustration: mechanic checking car tires and coolant at roadside]
Step 4: Plan alternate routes and stops
Identify at least two alternate routes avoiding low-lying roads for storms and long highway stretches for heat; mark rest stops, cooling centers, and gas stations every 60–90 minutes. Shorter legs let you adjust if conditions worsen or if you need shelter quickly.
[Illustration: map with primary and alternate routes highlighted and rest stops noted]
Step 5: Drive to conditions, not the speed limit
In storms reduce speed by 30–50% and increase following distance to 4–6 seconds; in extreme heat be mindful of tire blowout risk and slower-moving vehicles. Slower, controlled driving lowers crash likelihood and gives time to react to hazards like hydroplaning or blown tires.
[Illustration: car driving slowly through heavy rain with water splashing]
Step 6: Seek shelter early and safely
If authorities advise shelter or you encounter blinding rain, lightning, or temperatures over 40°C (104°F), pull into a public building, rest area, or sturdy structure within 10–15 minutes. Avoid parking under trees during storms and avoid metal-roofed shelters during lightning.
[Illustration: family entering a public rest area from a stormy parking lot]
Step 7: Manage heat exposure inside vehicle
If trapped in heat, park in shade, run engine for 10–15 minutes every hour to power AC if fuel allows, crack windows slightly for ventilation, use reflective sunshades, and drink 250–500 ml water every 30 minutes. Monitor for heat illness signs and get to cool shelter within 1–2 hours if symptoms appear.
[Illustration: Manage heat exposure inside vehicle]
- Share your itinerary with someone and check in every 4–6 hours so rescuers have a recent location if you get stranded.
- Keep physical cash (about $50–100) and a paper map in case electronics fail or stations are closed.
- Carry lightweight emergency clothing: a waterproof jacket, hat, and two changes of socks to stay dry and prevent hypothermia after storms.
- Use smartphone weather alerts and NOAA/Met Office broadcasts set to immediate notifications for your current location.
- Rotate stored water every 6–12 months and replace perishable items in your kit after each trip.
- When parking in extreme heat, cover seats with towels and keep a sealed container of water to avoid scalding metal surfaces in cars.
- Do not drive through standing water — 15 cm can stop most cars and 30 cm can sweep a vehicle away.
- Never leave children or pets alone in a parked vehicle; temperatures can become deadly within 10–20 minutes in a heatwave.
- Avoid touching floodwater; it can contain contaminants and hide downed power lines or sharp debris.
- If lightning is nearby, do not use the vehicle as a radio antenna; remain inside with windows closed and avoid contact with metal surfaces.
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