Storms and tornadoes often occur in the late spring in the central US. However, the great majority occur in the afternoon hours. The threat is less at night but may continue after sunset in some areas.
Thunderstorms connected to low pressure fronts and tropical storms may persist 24 hours a day, but again are more numerous during daytime heating.
For the night of May 31, 2013, the storms appear to be weakening for the night, but the severe storm threat for this slow moving system will persist through the weekend.
Scattered thunderstorms are thunderstorms in the 30-40% chance category. They are generally weak, widespread short thunderstorms that turn on and off due to a storm system moving over the area.
Yes, thunderstorms can form over land. They often develop when warm, moist air rises rapidly in unstable atmospheric conditions, leading to the formation of cumulonimbus clouds that produce thunder and lightning. Thunderstorms are common in many parts of the world, including over both land and water.
No. Hurricanes lose strength when they move over land. Thunderstorms can easily form and become very strong over both land and water.
Land.
Thunderstorms over land can produce tornadoes, microburst or dust storm. Though all but the dust storm can form over water as well.
Generally not. Tornadoes form from thunderstorms called supercells, which form under similar conditions to ordinary thunderstorms and as anybody can tell you, thunderstorms don't need to form over an ocean. That said, some tornadoes do form on the ocean.
Air masses typically last longer than severe thunderstorms. Air masses can persist over a region for days to weeks, while severe thunderstorms typically last for a few hours.
tropical depression
tropical depression
A group of thunderstorms over warm ocean waters is known as a tropical disturbance. These disturbances can develop into tropical cyclones under certain conditions, forming hurricanes, typhoons, or cyclones depending on their location.
Groups of thunderstorms forming over warm ocean waters are referred to as tropical cyclones, or tropical depressions. Cyclones fall into different categories depending on their severity.
Thunderstorms can weaken as they move over land due to a loss of moisture and energy supply from the warm water. However, certain factors like terrain, atmospheric conditions, and local heating can sometimes help sustain or even intensify thunderstorms as they travel over land.