15 Essential Survival Tips That Hold Up in Real Emergencies

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Most survival tips online are written for a dramatic wilderness ordeal. The emergencies that actually injure and kill people are usually more ordinary: a car stuck in a snowstorm, a flooded road, a thunderstorm on a hike, or a generator running in the garage during an outage. These 15 tips come from the agencies that study those events: the National Weather Service, the CDC, the National Park Service and Ready.gov. Each one is something you can remember and act on.

Short version: tell someone your plan before you go, stay put if you are lost, and stay with your car if you are stranded in snow. Never drive or walk into floodwater. Go indoors when you hear thunder. Keep fuel-burning equipment outside, and treat water before you drink it. The rest of this page explains why, and what to do instead of the common myths.

The 15 tips at a glance

Before anything happens

1. Leave a trip plan with someone who isn’t going. The National Park Service advises leaving your route, contact details, start and return times and companions with “a trusted friend or family member that is not going on the trip with you” (NPS Hike Smart). The same idea works for a long winter drive. Searchers can only look where they know to look.

2. Agree how your household will reconnect. Ready.gov’s planning page asks every household to “know how you’ll contact one another and reconnect if separated” and to pick a meeting place that is easy to find (Ready.gov). Write it down. Our emergency contact card fits in a wallet, and the emergency communications guide covers what to do when phones are down.

3. Practice with your gear before you need it. Light your stove, treat a liter of water and take a bearing with your compass on an ordinary weekend. Gear you have never used is a guess, not a plan. If you need to decide what to carry first, see our ranked list of the top 10 survival supplies.

Lost or stranded

4. Stop and think before you move. Panic leads to rushed decisions. Sit down, drink some water and work out what you know: where you last were sure of your position, how much daylight is left and what the weather is doing.

5. If you are lost, stay put. Texas Parks and Wildlife’s hunter education course says that “in many cases staying where you are is the best choice,” because moving uses energy and makes you harder to find (TPWD). Staying put works best when someone knows your plan (tip 1). Our lost-outdoors guide explains when self-rescue makes sense instead.

6. Signal in threes. The same course describes three blasts of a whistle or horn, or three evenly spaced fires, as international distress signals, and suggests a mirror to catch the sun. A pealess whistle keeps working when wet and takes far less effort than shouting. Bright color helps searchers too, such as a blaze-orange vest worn or tied up where it can be seen. More methods are in how to signal an SOS.

7. Stay with a stranded car. The National Weather Service is blunt: “Stay in the vehicle!” Walking in wind-driven snow quickly disorients people. Its advice is to run the motor about 10 minutes each hour for heat with a window cracked, to “clear snow from the exhaust pipe to avoid gas poisoning,” and to tie a bright cloth to the antenna or door (NWS). Build the rest of the kit with our car kit checklist.

Weather

8. Treat cold as the first threat. Ready.gov lists the warning signs of hypothermia as “shivering, exhaustion, confusion, fumbling hands, memory loss, slurred speech or drowsiness” (Ready.gov). The CDC calls hypothermia a medical emergency: below 95 °F, get medical help, then remove wet clothing and warm the chest, neck, head and groin first (CDC). Wet clothing and wind speed it up, which is why an extra dry layer and an emergency blanket rank high on any kit list.

9. Turn around at floodwater. According to the National Weather Service, 6 inches of fast-moving water can knock over an adult, 12 inches of rushing water can carry away most cars, and 2 feet can carry away SUVs and trucks. Its rule: “It is NEVER safe to drive or walk into flood waters” (NWS). You can’t judge the depth or the road beneath from the driver’s seat. For storm planning, see how to survive a hurricane.

10. Go indoors when thunder roars. The National Weather Service says “there is no safe place outside when thunderstorms are in the area.” If you can hear thunder, you are likely within striking distance (NWS). Head for an enclosed building as soon as you hear it; sheltering under a tree or in a tent is still being outside.

Water, air and information

11. Treat water the right way. The CDC says to bring clear water to a rolling boil for 1 minute, or 3 minutes above 6,500 feet. Filters rated 0.3 micron or smaller remove bacteria and parasites but not viruses, and chlorine or iodine don’t work well against Cryptosporidium (CDC). Compare portable options in our water filter guide and learn where to find water.

12. Keep fuel-burning equipment outside. Carbon monoxide is a known danger during outages and storms, when people bring heat and power sources indoors. The CDC says never to use a generator inside a home or garage, “even if doors and windows are open.” Run it more than 20 feet from windows, doors and vents. Never burn charcoal or use a camp stove indoors. The CDC also says to install battery-operated or battery back-up CO detectors near every sleeping area (CDC). A battery-operated CO alarm keeps working when the power is out. Plan outage power safely with our household power outage planner.

13. Get warnings from more than one source. Cell networks fail or overload in big events. Ready.gov’s kit list includes a battery-powered or hand-crank radio and a NOAA Weather Radio with tone alert (Ready.gov). Our hand-crank radio guide compares models that receive NOAA alerts.

Bites and wildlife

14. Skip the snakebite myths. The CDC’s advice for venomous snakebites is to get emergency care as soon as possible, and not to drive yourself. While you wait, remove rings and watches before swelling starts, wash and cover the bite, and mark the edge of the swelling with the time. It also says what not to do: no tourniquet, no cutting the wound, no sucking out venom, no ice and no alcohol (CDC NIOSH). For the rest of your kit, see our first aid kit guide.

15. Know which bear you are dealing with. The National Park Service says to carry EPA-approved bear spray where it is recommended. If a grizzly or brown bear attacks, leave your pack on and play dead. If a black bear attacks, “do not play dead”: escape to a car or building, or fight back aimed at the face and muzzle (NPS).

Myths to drop

• “A sock makes a decent water filter.” Cloth can strain out debris, but it doesn’t remove the germs that make people sick. Treat the water afterwards (tip 11).
• “You need a gun to survive.” A firearm doesn’t keep you warm, hydrated or found, and safe use depends on training and your state’s laws. None of the agency guidance above calls for one.
• “The rule of threes is a timetable.” The rule of threes is a rough memory aid for priorities, not a medical prediction.
• “Signal mirrors are useless.” They need sun and some practice, but TPWD lists mirrors among the ways to alert rescuers. Carry one along with a whistle, not instead of it.

The supplies behind these tips

Most of these tips need a few cheap supplies: a whistle, a headlamp, water treatment, warm layers and a radio. We rank them by how many emergencies each one covers in the top 10 survival supplies list. To build skills over time, start with our survival skills guide. For hazard-specific plans, see our earthquake and hurricane guides.

Why this page changed

Earlier versions of this page relied on an anonymous author’s unverifiable military credentials. They recommended a specific shotgun and ammunition loadout as an essential survival item. They also suggested filtering water through socks and advised against signal mirrors. We replaced that with guidance from the National Weather Service, the CDC, the National Park Service, Ready.gov and Texas Parks and Wildlife.

How we researched this guide

Research method: This is a research-led summary of public safety guidance, read on November 14, 2026: National Weather Service pages on winter storms, floods and lightning; CDC pages on hypothermia, carbon monoxide, water treatment and venomous snakes; National Park Service Hike Smart and bear safety pages; Ready.gov’s kit, plan and winter weather pages; and Texas Parks and Wildlife’s hunter education lesson on being lost. The grouping and wording of the tips are our own. We are not medical professionals or emergency managers. Official instructions during a real emergency, and medical advice for an injury, take precedence over this page.

Product links to Amazon are generic searches for a type of item, not brand endorsements, and we have not tested them. We may earn a commission from qualifying Amazon purchases through these disclosed links.

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