What s the deal with the old thunder before the rain in the summer?

Thunderstorms are common in summer and spring. But not all rain is preceded by thunder. Thunder and lightning are the phenomenon of electrical discharge in thunderstorm clouds.

There are certain conditions for the formation of thunderstorm clouds, that is, there must be sufficient water vapor in the air, there must be a power to make the moist air rise, and the air must be able to produce violent convective movements. In spring and summer, due to the influence of the warm and humid airflow from the south, the air is humid, and the solar radiation is strong, the air near the ground is constantly heated and rises, and the cold air in the upper layer sinks, which is easy to form strong convection, so there are many thunderstorms.

The Earth's revolution produces seasonal changes.

Since the earth is an opaque planet, the sun and stars give the earth light, and the side that shines on the sun is day, and the other side is the night. The earth is constantly rotating from west to east around its axis of rotation, and the phenomenon of celestial bodies rising in the east and setting in the west is a reflection of the earth's rotation. One rotation of the earth is equivalent to the week when the sun rises in the east, sets and rises again, and it is also our daily day.

As the Earth rotates, it revolves around the Sun, which rotates from west to east. The orbit of the Earth's revolution is an ellipse that is close to a perfect circle, and the Sun is located in a focal point. The Earth's orbital period is one year, and astronomically it is 365 days, 5 hours, 48 minutes and 46 seconds.

The angle between the Earth's orbit (ecliptic plane) and the Earth's rotation plane (equatorial plane) is 23 degrees 26 minutes, which causes the direct point of the Sun to move between the Tropic of Cancer in a one-year cycle, forming the four seasons in temperate regions.

On March 21 every year, the direct sun point moves from south to north to the equator, and the global day and night are equinox, which is our vernal equinox day, and on June 22, the direct sun point moves north to the Tropic of Capricorn, becoming the longest day in the northern hemisphere, which is what we call the summer solstice, and then the direct sun point turns to move south, and on September 23, it hits the equator directly, which is the autumnal equinox, and on December 22, it moves to the Tropic of Capricorn, and it is our winter solstice.

The change of seasons is actually the result of the combined effect of the earth's rotation inclination and revolution around the sun, without one of these conditions, the change of seasons will not occur, and everything on the earth will change accordingly.

It's mildew season.

Friction of the air flow.

The current generated by the collision of clouds and clouds.

Summary. This is due to the fact that when the weather turns into autumn, the cold and warm air currents meet and the weather temperature difference is high and cool (the rain is affected by the seasonal pressure) when the rain arrives again according to the local natural geographical conditions.

During this season, rainfall is often suppressed by the rotation of the sudden high and bottom air currents (i.e. the rain is pushed back by the air current).

Now that summer has passed, why is it raining and still thundering?

This is because when the weather turns into autumn, the weather is cold and warm, and the air flow temperature difference is reflected when the rain is coming again according to the local natural geographical environment conditions.

During this season, rainfall is often suppressed by the rotation of the sudden high and bottom air currents (i.e. the rain is pushed back by the air current).

Why are there so many thundershowers in summer? It turned out that thundershowers were caused by hot weather. When the temperature is high in summer, the hot air rises to the sky with water vapor, and it becomes. When two clouds with different charges collide, a thunderstorm occurs.

The above is the first, and the second is that the weather now has periodic changes, such as more rainy weekends than weekdays. For example, thundershowers are prone to occur in summer evenings, which should also be the reason.

Thunder on rainy days is caused by an imbalance of charges in cumulonimbus clouds. The positive and negative charges in the cumulonimbus cloud are constantly accumulating, and when the voltage between the positive and negative charges is large enough, a strong electrical spark is generated, which is what we see as lightning.

Lightning causes a portion of the heat in the cumulonimbus cloud to be rapidly heated, separating the oxygen and nitrogen molecules in the air, forming a thin layer of oxygen and nitrogen. The energy released during this process is converted into heat energy and light energy of the slow hand, producing thunder.

Thunder and lightning are both natural phenomena in nature. They are caused by an imbalance of charges in a cumulonimbus cloud and are a phenomenon of electrical discharge. Thunder and lightning are not a direct danger to our lives, but in some cases, such as outdoors, sailing can cause danger, so it is recommended to try not to be outdoors when thundering.

Thunder and lightning will occur on rainy days because when the air is extremely unstable, it is easy to have a strong upward convective movement, and the formation of towering cumulonimbus clouds, the clouds are filled with water vapor running up and down, static electricity will be generated, the upper and lower ends of the cloud will produce electric charges, and the air will expand in an instant** Thunder, and the electric spark emitted is lightning.

Why thunder and lightning when it rains.

When it rains, some of the clouds in the sky are positive and some are negative. When two clouds collide, lightning strikes, and at the same time emits a lot of heat, heating and expanding the surrounding air. The air that is heated and expanded in an instant will push the surrounding air, causing a strong **-type vibration, which is thunder.

Thunder and lightning are the phenomenon of electrical discharge in thunderstorm clouds. The formation of thunderstorm clouds generally requires two conditions, sufficient water vapor and violent convective movements.

Lightning is a phenomenon of intense electrical discharge between clouds, between clouds and the ground, or between parts of the cloud. Usually storm clouds (cumulonimbus clouds) produce electric charges, with yin electricity at the bottom and yang electricity at the top, and also a positive charge on the ground, which follows the clouds like a shadow. Positive and negative charges attract each other, and the positive charges run towards trees, hills, the tops of tall buildings, and even the human body, reaching down and getting closer to the ground.

Eventually, the negative charge of the cluster base finally overcame the barrier of air and connected, and a huge electric current surged along the conductive airway from the ground to the clouds, and lightning was generated.