Santa Ana Season: A Go-Bag and One Clean Room

Inside the Season, Not a Forecast

The National Weather Service page on mountain and valley winds describes Santa Ana winds as air from high pressure over the dry desert of the southwestern United States, flowing west toward lower pressure off the California coast. The wind is dry. It moves east to west through the mountain passages of Southern California. These winds are most common in the cooler months, from September through May. October 28 sits inside that window. This is not a forecast for one canyon. It is the short list of chores that match a season the Weather Service already named.

Cool desert air is compressed as it descends, so the wind can feel warm or even hot. These strong winds can cause major property damage. They raise wildfire risk because the air is dry and because of how fast a flame can spread. The page does not give a speed for Santa Ana winds, so none is added here. The smoke steps below are CDC guidance for wildfire smoke in general, not only for a Santa Ana canyon.

A Room You Can Shut

CDC's wildfire safety page, updated July 17, 2026 and reviewed August 24, 2026, starts with a few habits. Watch the local forecast. Check air quality at www.airnow.gov. Follow local emergency management, and stay inside if authorities tell you to.

Smoke irritates the eyes, nose, throat, and lungs. It can make breathing hard, and it can make you cough or wheeze. CDC says children need extra care, and so do people with asthma or COPD, heart disease, diabetes, or chronic kidney disease, and people who are pregnant. New or worsening symptoms need medical help. Staying inside is the first protection. A mask is for the errand you cannot skip.

Pick one room you can close off from outside air. Set up a portable air cleaner, or a filter, so that room stays cleaner than the rest of the house. If you build a box-fan filter, never leave it unattended. As much as possible, avoid burning candles, gas, propane, incense, or wood indoors. Also avoid smoking, cooking on the stove, and vacuuming while the air outside is already bad.

If the house has central air, use a high-efficiency filter, preferably MERV 13 or higher, only if the system can take it. If there is a fresh-air intake, set the system to recirculate or close the outdoor damper. You are cleaning the air already inside.

If you must go out, wear a NIOSH-approved respirator that fits tightly, the way the instructions say. Children ages 2 and older can wear a respirator or a mask, but NIOSH-approved respirators are not sized for very young children. A mask that is pulled down does little good. It should cover the nose, sit under the chin, and not block sight. For a baby or a toddler, the closed room matters more than a mask you cannot fit.

Listen to the Emergency Alert System and a NOAA Weather Radio, and look at AirNow's Fire and Smoke Map. Some evacuation centers do not accept animals. If you have a pet, decide this week where that animal would go.

The Bag, Then the Clothes

Ready.gov's wildfire page, updated August 11, 2026, asks for enough supplies for the household, including a first-aid kit, in a go-bag or the car trunk. Store an N95 if you can. Keep the phone charged when fire weather is possible, and keep a backup way to charge it. Hear alerts more than one way: community alerts where you live, the Emergency Alert System, and Wireless Emergency Alerts, which need no sign-up. The FEMA app can take National Weather Service alerts for up to five places. Include the office, school, and daycare in the plan, not only the house.

Keep insurance and identification up to date, with copies in a secure password-protected digital space. A paper copy in the bag is a household extra, for the hour the phone is dead.

Learn the routes, practice them with pets, and decide where you would go. If authorities say evacuate, leave. If you are not ordered out and the air is smoky, stay in the clean room or go to a community building where the smoke is lower. If you are trapped, call 911, give your location, and turn on lights so rescuers can find the house. Ready.gov says a response could be delayed or impossible, which is a reason to leave when you are told.

Clear leaves, debris, and other material that can burn for at least 30 feet from the home, and keep a hose that can reach any area of the property. Late October is when leaves pile against a fence. Rake that ring.

CAL FIRE's evacuation guide says to be ready to go and to evacuate early. Before you need to leave, make a family wildfire action plan, including what to do if you are trapped. Sign up for text alerts. Know the local evacuation orders and centers. When it is time to go, the kit or evacuation bag should already be in the vehicle. Cover up against heat and flying embers: long pants, a long-sleeve shirt, heavy shoes or boots, a cap, a dry bandanna, and goggles or glasses. CAL FIRE prefers 100 percent cotton. Take the pets with you.

Check the clothes on a calm afternoon, and replace a child's coat that no longer fits. Ready.gov names the first-aid kit and the N95. The longer food-and-water list is in the 72-hour kit article. Household additions for this bag, not a second official list, are drinking water with the packing date on the bottle, a snack people will eat, daily medicine still in date, a flashlight that turns on, and a little cash in small bills.

Open the Bag Once

Prep Roadmap's first phase is a fixed checklist called 72-Hour Basics. The tasks that match this week are a first-aid kit, light, a paper plan with meeting points, document copies, and cash. It does not know which road is open. Drive one route on a quiet afternoon and write down where you would meet.

Three family drills fit. Go-Bag Inspection and Rotation means unpacking every bag, checking dates on food, water, and medicine, seeing whether clothes still fit, confirming the papers are current, testing the gear, and packing again near the door you would use. Multiple Evacuation Routes asks you to map at least three ways out, drive them, and keep printed maps in the car and the house. Vehicle Evacuation Readiness is fuel, fluids, tires, a spare, and the battery. The drill is the list. You still open the trunk.

Rally Map is where you pin the outside meeting place you already chose. The supply tracker logs what you stored and compares calories and water with a number of days. It does not flag expiration dates. The date on the bottle is still yours to write. On the website, a free account can log 10 items. A 7-day trial unlocks the full tracker.

The medical guide is a reference on the device. It is not a smoke map, and it is not a substitute for a clinician or for 911 when breathing gets worse. The full medical guide, family drills, and Rally Map open with the 7-day trial. On the website, the roadmap is free. The iPhone app currently includes every tool.

“By wisdom a house is built, and through understanding it is established.” — Proverbs 24:3

September through May is a long season. This week, close one room, put the bag in the car, and decide where you would go if someone told you to leave.