In people with astraphobia, thunderstorms cause an extreme reaction that can be debilitating. For people with this phobia, these feelings may be overwhelming and feel insurmountable. (Healthline)

When people have had a traumatic experience linked to thunderstorms and lightning, they may be more prone to develop astraphobia. And if a person has witnessed someone getting hurt by thunder and lightning, this can contribute to the development of astraphobia. (psycom)

Cognitive-behavioral therapy techniques are often used in astraphobia treatment. You may be taught soothing messages to repeat during storms, replacing your negative self-talk. (Verywell Mind)