Advanced Asthma Clinic · Plantation, FL · Updated June 2026
Florida's Atlantic hurricane season runs June 1 through November 30. For the 3.3 million Floridians living with asthma, a hurricane is not just a weather emergency — it is a multi-week respiratory hazard involving airborne mold, debris particulates, generator exhaust, disrupted medication supplies, and exposure to unfamiliar shelter environments. This guide, prepared by Dr. Frank Hull and the Advanced Asthma Clinic team in Plantation, FL, walks through every phase: preparation, the storm itself, and the high-risk post-storm recovery period.
A major hurricane delivers a cascade of respiratory triggers that compound one another:
Outdoor ozone and particulate matter spike as pressure systems move in. Pollen from uprooted vegetation becomes airborne.
Shelter-in-place concentrates household allergens. Stress and anxiety are known bronchoconstriction triggers. Power loss disrupts nebulizers.
Flood-driven mold emerges within 24–48 hours. Generator exhaust, debris dust, and standing water vapors create sustained multi-week exposure.
Research following Hurricanes Irma (2017) and Ian (2022) documented significant spikes in emergency department asthma visits in the 2–4 weeks after landfall — primarily driven by mold and particulate exposure during cleanup.
Build a 30-day buffer on all asthma medications before June 1. Florida law (F.S. § 252.358) requires insurers to allow early refills when the Governor issues an emergency declaration — but filling early avoids the post-declaration rush when pharmacies are overwhelmed.
| Medication Type | Target Supply | Storage Note |
|---|---|---|
| Rescue inhaler (albuterol MDI) | 2 inhalers minimum | Room temp; keep one in go-bag |
| Inhaled corticosteroid (ICS) | 30+ days | Room temp, away from humidity |
| ICS-LABA combination | 30+ days | Room temp |
| Oral prednisone burst pack | 1 pack (discuss with physician) | Room temp |
| Biologic (dupilumab, mepolizumab, etc.) | Coordinate next injection timing | Refrigerate 36–46°F; tolerates room temp up to 14 days below 77°F |
| Nebulizer cups & masks | 2 complete sets | Sealed bag in go-bag |
| Spacer/valved holding chamber | 2 units | MDI + spacer = nebulizer-equivalent when power fails |
Your written Asthma Action Plan must be in your hurricane go-bag. In an emergency, you may be treated by an unfamiliar provider at a shelter or field hospital. A written plan removes ambiguity. If you do not have a current written plan, contact Advanced Asthma Clinic at 954-522-7226 to obtain one.
Broward County maintains Special Needs Shelters (SNS) separate from general public shelters. These facilities have backup power, air conditioning, and medical personnel. Pre-registration is required — you cannot register at the door during an evacuation. Registration is free and renewed annually through Broward County Emergency Management.
During a storm, keep windows and doors sealed. If you shelter in an interior room, be aware that musty or dust-laden air from older construction materials, attics, or seldom-opened spaces can trigger symptoms. Run an air purifier with a HEPA filter if you have battery backup, or place damp towels at door seams to reduce particulate infiltration.
Psychological stress activates the HPA axis and releases histamine, directly worsening airway inflammation. If anxiety triggers hyperventilation during the storm, use pursed-lip breathing (inhale 2 counts through nose, exhale 4 counts through pursed lips) to slow respiratory rate and reduce dynamic hyperinflation.
Follow your Green–Yellow–Red Asthma Action Plan zones:
Standing water and flood-saturated building materials create ideal conditions for Cladosporium, Aspergillus, Penicillium, and Stachybotrys chartarum (black mold). These species are potent asthma triggers and potential allergens in sensitized patients. Mold spore counts in South Florida homes after a major hurricane regularly exceed 50,000 spores/m³ — compared to a normal indoor level below 500 spores/m³.
| Mold Species | Time to Growth | Common Location | Asthma Risk |
|---|---|---|---|
| Cladosporium | 24–48 hours | Drywall, fabric, carpet | High — common sensitizer |
| Aspergillus | 24–48 hours | AC ducts, insulation | High — can cause ABPA in severe asthma |
| Penicillium | 48–72 hours | Wallboard, wood framing | Moderate–high |
| Stachybotrys (black mold) | 7–14 days | Paper-faced drywall, ceiling tiles | Severe — mycotoxin-producing |
Post-storm debris cleanup generates coarse and fine particulate matter (PM10 and PM2.5) from broken concrete, roof materials, treated lumber, and soil. Wear an N95 during any outdoor cleanup. Limit time outdoors when visible dust is present. Check AirNow.gov for Broward County air quality index — an AQI above 100 indicates outdoor air quality that is unhealthy for sensitive groups including asthma patients.
If your home loses power and your biologic (dupilumab, mepolizumab, benralizumab, tezepelumab) has been unrefrigerated:
Even Broward County's Special Needs Shelters carry respiratory risks. Anticipate the following and plan mitigations:
| Trigger | Why It Occurs | Mitigation |
|---|---|---|
| Cleaning product fumes | High-volume disinfection of shared spaces | Wear N95; ask staff for fragrance-free products where available |
| Pet dander | Pet-friendly shelters admit animals | Request placement in a non-pet wing; inform medical staff of allergy |
| Overcrowding / poor ventilation | High shelter occupancy | Maintain distance from others; use personal HEPA purifier if portable |
| Stress-induced exacerbation | Displacement, anxiety, noise | Written action plan; corticosteroid burst pack if prescribed |
| Unfamiliar medications | Shelter pharmacy may stock limited formulary | Bring full personal supply; written prescription list |
Schedule a post-storm pulmonary review within 4–6 weeks of any hurricane exposure — sooner if symptoms worsen. Dr. Frank Hull's team at Advanced Asthma Clinic will assess:
Call Advanced Asthma Clinic now to update your Asthma Action Plan, review your medication supply, and discuss biologic therapy options before hurricane season intensifies.
Call 954-522-7226Florida's official hurricane season runs June 1 through November 30, with peak activity from mid-August through mid-October. For asthma patients, hurricanes trigger multiple simultaneous threats: airborne mold spores from flooding, outdoor debris and particulates during and after storms, indoor air quality degradation during shelter-in-place, generator exhaust carbon monoxide, and supply disruptions that can interrupt medication access. Early preparation — ideally by June 1 — significantly reduces asthma risk during storm events.
Pulmonologists recommend maintaining at least a 30-day supply of all controller medications and a minimum of two rescue inhalers entering hurricane season. Florida law allows early refills before declared emergencies. For biologic injectables requiring refrigeration, most can tolerate room temperature (below 77°F) for up to 14 days. Consult your physician about a specific protocol for power outage scenarios.
Generators may be used outdoors, placed at least 20 feet from any window, door, or vent. Never operate a generator indoors or in a garage — carbon monoxide accumulation is rapid and dangerous, particularly for asthma patients. Always install a battery-operated CO detector. Use an MDI with spacer as a power-free alternative to a nebulizer during outages.
Mold can begin growing on wet materials within 24–48 hours after flooding. The weeks following a major storm represent the highest mold exposure window. Do not re-enter a flood-damaged home without an N95 respirator. Begin structural drying within 24 hours when safe to do so. Consult your physician about temporarily increasing controller medication coverage during remediation.
Florida's Special Needs Shelters (SNS) are designed for individuals with medical conditions. Broward County residents can pre-register through broward.org/Emergency or 954-831-3900. Bring all medications, written Asthma Action Plan, spacers, peak flow meter, and your physician contact list. Inform shelter medical staff of your asthma severity and current treatment regimen upon arrival.
Seek emergency care immediately if: rescue inhaler provides less than 4 hours of relief, peak flow drops below 50% of personal best, you cannot speak in full sentences, or lips or fingernails appear bluish. Call 911. Do not delay emergency care due to storm conditions. Florida hospitals maintain emergency operations throughout declared disasters.
This article is for educational purposes only and does not constitute medical advice. Every asthma patient has a unique treatment plan. Always consult your physician — including Dr. Frank Hull's team at Advanced Asthma Clinic (954-522-7226) — before making changes to your medications or emergency protocol. Information reflects current clinical guidelines as of June 2026.