Thunderstorms may be associated with episodes of allergic rhinitis and/or asthma in susceptible individuals.
Thunderstorms may be associated with:
(1) high winds and strong downdrafts
(2) change in barometric pressure
(3) moisture
The thunderstorm can disperse pollen, often over a wide area and can affect people in large numbers. The maximum risk may be as the storm front comes in, when winds can be high without the rain droplets that can trap the pollen particles.
Additional requirements:
(1) pollen season/production, typically in warmer months of the year
(2) level of allergy associated with the particular pollen
(3) exclusion of other explanations
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