When a local alert hits your phone or radio, the honest answer to “stay or go” is: it depends on three things — what kind of hazard triggered the alert, whether an official has issued a mandatory order or just a recommendation, and whether your household can actually execute an evacuation right now. There is no single rule that covers every alert. This worksheet walks through those three questions in order so you land on a decision instead of guessing under pressure.
First, Know What the Alert Is Actually Telling You
Not every alert means the same thing, and reacting to the wrong one wastes the lead time you have. The National Weather Service defines the three main alert levels this way:
- Watch — “alerts the public to the possibility of severe weather, or some other hazardous weather element,” giving people time to set their plans in motion.
- Warning — issued when “a hazardous weather element is imminent or has a very high probability of occurrence.” This is the level where you act, not plan.
- Advisory — for conditions that “may cause significant inconvenience” and could threaten life or property if you don’t take caution, but are less serious than a warning.
If the alert came through as a Wireless Emergency Alert on your phone, it arrived automatically — no signup required — from an authorized source such as local or state public safety agencies, the National Weather Service, FEMA, or the Department of Homeland Security. The guidance for any WEA message is the same regardless of category: follow the action advised in the message itself, then confirm details through a trusted source like local TV or radio, a NOAA Weather Radio, or an official news site.
Question 1: What Kind of Hazard Is It?
The type of disaster is the biggest factor in whether evacuation or shelter-in-place is the safer call. According to federal guidance, fires and floods are the most frequent causes of evacuation, and hurricanes regularly trigger coastal evacuations. But the same guidance is explicit that evacuation isn’t automatically the safer choice: “In some events, evacuating your home, work, or school can put you at greater risk. In these situations, you should shelter in place.” A sudden tornado warning or a chemical release near your location are examples where getting indoors and sealing off outside air can be safer than being caught outside or on the road.
Question 2: Is It an Order, or a Recommendation?
This is the question that overrides your own judgment. When “government officials issue mandatory orders,” the guidance is to comply immediately — not to weigh it against your own read of the situation. A voluntary or recommended evacuation is different: it’s a signal that conditions may deteriorate, and the decision of whether to leave now or wait is genuinely yours to make based on the two questions below. If you’re not sure which one you’ve received, your local radio or TV station is the source built to answer that for your specific area and situation.
Question 3: Can Your Household Actually Leave Right Now?
An evacuation plan that looks fine on paper can fall apart in practice. Before you decide, run through your household’s real constraints:
- Does anyone in the household depend on powered medical equipment, refrigerated medication, or mobility support that takes time to move?
- Is there a working vehicle with enough fuel, and is the route you’d take still passable?
- Do you have a plan for pets or livestock?
- How much daylight or lead time is actually left before conditions worsen?
None of these questions have a universal answer — they’re what turns general guidance into a decision for your specific household.
The Alert Decision Tree
Work through these in order the next time a local alert arrives:
- Read the alert level. Watch means plan now. Warning means act now. Advisory means stay cautious and informed.
- Check for a mandatory order. If one has been issued for your area, evacuate immediately — this step ends the decision process.
- If there’s no mandatory order, identify the hazard type. Fire, flood, or hurricane pointing at your location generally leans toward evacuating. A fast-moving hazard like a tornado or a chemical release generally leans toward sheltering in place.
- Weigh your household’s real capacity to move. Medical needs, transportation, pets, and remaining time can tip the decision even when the hazard type alone would suggest otherwise.
- Confirm with a live local source — radio, TV, or your local emergency management agency — before acting, since conditions and official guidance can change quickly.
Build the Kit Before You Need It
Whichever way the decision tree points, having supplies ready removes one variable from a fast-moving situation. A basic emergency kit, per federal guidance, includes:
- Water — one gallon per person per day for several days, for drinking and sanitation
- Several days of non-perishable food
- A battery-powered or hand-crank radio, ideally a NOAA Weather Radio with tone alert
- Flashlight and extra batteries
- First aid kit
- Whistle for signaling
- Dust mask, plus plastic sheeting, scissors, and duct tape for sheltering in place
- Basic hygiene supplies, including moist towelettes and garbage bags
- A wrench or pliers to shut off utilities
- Manual can opener and local maps
- Phone chargers and a backup battery
Store these together in an easy-to-carry container so the kit itself isn’t a decision you have to make during an alert.
Documents are part of that kit, too. Copies of IDs, insurance policies, and medical records need to survive the same emergency as your water and radio — and they need refreshing on a schedule, not left to go stale in a drawer. For a closer look at which document copies need updating each year, see this site’s guide to kit document upkeep. For guidance on keeping those copies accessible without leaving them exposed, see this site’s guide to document copies, encryption, and access.
What This Worksheet Can’t Tell You
This is a general framework, not a substitute for the specific guidance issued for your address. Evacuation routes, shelter locations, and which hazards your area is actually prone to are set by your local emergency management agency, not by a national checklist. Treat everything above as the questions to ask — and your local officials, radio, and TV stations as the ones with the answer for your specific alert.
Your Next Step
Before the next alert arrives, walk through the decision tree once as a household — not during an emergency, but now, while you can talk it through calmly. Confirm you have a working NOAA Weather Radio or equivalent, know where your kit is, and know which of you would need extra time to move. For more on building out the rest of your household plan, see the Emergency Preparedness and Self-Reliance hub on this site. [About this guide: insert the live internal URL after confirming it loads — not independently verified this session.]
This worksheet is general educational information, not an emergency response plan for any specific address, hazard, or medical situation. Always follow the direction of local officials and licensed emergency responders during an actual alert.