Medical Preparedness · Disaster-Specific Medical Planning

Disaster-Specific Medical Planning: each hazard asks something different.

The general medical guides cover what applies to most disruptions. This page maps four common hazards to the medical planning adjustment each one needs.

By Dan Whelan, founder of New World Survival

Researched from government agencies, university extension services, and other published sources. See our sources

Planning guidance, not medical advice. This section helps households prepare for medical continuity during disruptions. Work with your doctor, pharmacist, and specialist for your household's specific medical needs.

What this category covers

Same household, same medicines, different hazards.

A power outage threatens equipment and refrigerated medicine. Heat can interact with some medicines. Floodwater can make medicine unsafe. Smoke calls for extra planning for anyone with a heart or lung condition. The starting point for all four is the same: a complete household medical profile.

Each hazard has a specific medical adjustment, and federal agencies have published guidance for each. The sections below summarize what that guidance asks of a household, then point to the full hazard guide in Local Risks.

What these guides do not cover

Where to start

Four hazards. One adjustment each.

  1. Power outage: plan the devices and the cold medicine.

    FDA advises telling your electric company and fire department about any device that needs power,1 and CDC advises keeping insulin cool but never frozen.2

    Medical Devices and Power Outages
  2. Extreme heat: ask about your medicines.

    CDC warns that medications and heat can interact, and advises not leaving medicines in a car or other places that get very hot.3 Ask your pharmacist whether yours are affected.

    Heat Wave
  3. Flooding: waterproof the supply.

    FDA warns that medicines exposed to floodwater or possibly contaminated water can become unsafe to use.4 Keep a short supply and your medication list in a waterproof bag.

    Flood
  4. Wildfire smoke: plan before the season.

    EPA's first recommendation is to limit time outdoors when there is smoke in the air, and it advises people with heart or lung problems, or who are pregnant, to ask a doctor before using a respirator.5

    Wildfire

Common questions

Planning questions, answered plainly.

Can I use medicine that got wet in a flood?

FDA warns that medicines exposed to floodwater or water that may be contaminated can become unsafe to use.4 Ask your pharmacist about a replacement.

Does heat affect medications?

Yes. CDC notes that medications and heat can interact, and that insulin can be degraded by heat. CDC advises not leaving medicines in a car or other places that can get excessively hot.3 Ask your pharmacist whether your medicines are affected.

Should people with lung or heart conditions wear an N95 in wildfire smoke?

EPA's first recommendation is to limit time outdoors when there is smoke in the air. N95 respirators significantly reduce exposure when worn according to the manufacturer's instructions, but EPA advises anyone with heart or lung problems, or who is pregnant, to ask a doctor before using one.5

Sources

  1. U.S. Food and Drug Administration. FDA Offers Tips about Medical Devices and Natural Disasters. https://www.fda.gov/medical-devices/emergency-situations-medical-devices/fda-offers-tips-about-medical-devices-and-natural-disasters. Accessed October 6, 2026.
  2. Centers for Disease Control and Prevention. Managing Insulin in an Emergency. https://www.cdc.gov/diabetes/articles/managing-insulin-in-emergency.html. Accessed October 6, 2026.
  3. Centers for Disease Control and Prevention. Heat and Medications: Guidance for Clinicians. https://www.cdc.gov/heat-health/hcp/clinical-guidance/heat-and-medications-guidance-for-clinicians.html. Accessed October 6, 2026.
  4. U.S. Food and Drug Administration. Safe Drug Use After a Natural Disaster. https://www.fda.gov/drugs/emergency-preparedness-drugs/safe-drug-use-after-natural-disaster. Accessed October 6, 2026.
  5. U.S. Environmental Protection Agency. Protect Yourself from Wildfire Smoke and Ash. https://www.epa.gov/wildfires/protect-yourself-wildfire-smoke-and-ash. Accessed October 6, 2026.

About the author

Dan Whelan is the founder of New World Survival. He and his wife Vicki rode out Hurricane Andrew in 1992 and spent the week after sorting donations at a relief center in Homestead. More than thirty years of household preparedness later, he built this site to pass on what works. Read their story