We know that Flight 447 encountered heavy turbulence associated with a thunderstorm before losing signal.
That afternoon, a thunderstorm moved into Manhattan right before I left the salon, umbrella-less.
After the thunderstorm the weather had grown cloudy and cool.
Often, during a thunderstorm a tree had been hit by lightning.
We have said that this thunderstorm may have been quite a natural phenomenon.
I thought it was a thunderstorm, Dering told me he heard nothing.'
At the same instant the thunderstorm that had been gathering broke loose.
It was a peaceful night after the thunderstorm of the evening before.
A thunderstorm occurred in the evening, and Mrs. Roach, a schoolmistress at Wroxham, was killed by lightning.
Melora Meigs lowered like a thunderstorm, but she was held in check by the nurse.
A storm of heavy rain accompanied by lightning, thunder, wind, and sometimes hail. Thunderstorms occur when moist air near the ground becomes heated, especially in the summer, and rises, forming cumulonimbus clouds that produce precipitation. Electrical charges accumulate at the bases of the clouds until lightning is discharged. Air in the path of the lightning expands as a result of being heated, causing thunder. Thunderstorms can also be caused by temperature changes triggered by volcanic eruptions and forest fires, and they occur with much greater frequency at the equatorial regions than in polar regions.