I am asking the same Question so I don't know
Thunderstorms typically do not occur in stable weather conditions characterized by high pressure systems, clear skies, and low humidity. Additionally, during cold fronts or polar air masses where temperatures are consistently low, the atmospheric conditions are generally not conducive to the formation of thunderstorms. Calm, warm, and dry weather is also unlikely to produce thunderstorms.
Severe thunderstorms often form along cold fronts, though not always.
Continental Polar (cP): Cold and dry air mass from northern Canada, brings cold temperatures and clear skies in winter. Maritime Polar (mP): Cool and moist air mass from the North Pacific or North Atlantic, brings cool temperatures and overcast skies. Continental Tropical (cT): Hot and dry air mass from the southwestern United States or northern Mexico, brings hot temperatures and clear skies in summer. Maritime Tropical (mT): Warm and moist air mass from the Gulf of Mexico or Caribbean Sea, brings warm temperatures and thunderstorms.
A high-pressure system brings cool, clear weather. High-pressure systems typically bring sinking air that leads to stable atmospheric conditions, resulting in clear skies and calm weather. These systems are associated with fair weather and light winds.
Clear weather is caused by dry winds and high pressures. Low pressures are an indication of rising air, which carries moisture aloft and causes rain. Damp maritime air, that which comes from over warn oceans, brings moisture onshore and causes rain.
A cold front is a fast-moving boundary where cold air replaces warm air, often leading to thunderstorms followed by clearing skies as the cooler, denser air displaces the warmer, less dense air.
Cold front: Brings thunderstorms ,snow, heavy rain, and cold dry air Warm front: Brings drizzly rain then clear weather, warm and humid air
after a thunderstorm, the sky will clear, leaving dew on the ground and possibly a rainbow.
Severe thunderstorms often form along cold fronts, though not always.
clear skies and warmer weather
High pressure systems.
Continental Polar (cP): Cold and dry air mass from northern Canada, brings cold temperatures and clear skies in winter. Maritime Polar (mP): Cool and moist air mass from the North Pacific or North Atlantic, brings cool temperatures and overcast skies. Continental Tropical (cT): Hot and dry air mass from the southwestern United States or northern Mexico, brings hot temperatures and clear skies in summer. Maritime Tropical (mT): Warm and moist air mass from the Gulf of Mexico or Caribbean Sea, brings warm temperatures and thunderstorms.
Very nice weather. Highs don't like to let clouds form, nonetheless rain or thunderstorms.
Cold Front: Thunderstorms , Heavy Rains , or SnowWarm Front: Drizzly Rain , and are followed by clear and warm weatherOccluded Front: Cool Temperatures , and Large amounts of rain and snowStationary Front: Cloudy , Wet Weather
Tornadoes do not form under clear, sunny, or stable weather conditions, of if the weather is too cold. They cannot form without thunderstorms.
A high-pressure system brings cool, clear weather. High-pressure systems typically bring sinking air that leads to stable atmospheric conditions, resulting in clear skies and calm weather. These systems are associated with fair weather and light winds.
Graphic Features:A feature that shows clear graphics; a feature that brings out the colors of the face or object.