What is the precursor of rain?

1. It's sultry in the morning, and it's hard to breathe. Generally, it is a sign that the low-pressure weather system is approaching, and heavy rainfall often appears in the afternoon.

2. In the morning, I see a pagoda-shaped ink cloud uplift in the distance, and there will be a strong thunderstorm in the afternoon.

It has been clear and cloudless for several days, especially hot. Suddenly, I saw a small cloud rising on the windward slope of the mountain, and there was usually a strong thunderstorm at midnight or early morning.

On a hot night, hearing the dull thunder not far away is usually a sign that a storm is coming.

When you see funnel-shaped clouds or dragon tail clouds on the horizon, it means that the weather is extremely unstable and thunderstorms and strong winds may come at any time.

Extended data:

Precautions before rain:

1. In low-lying residential areas, measures of "small enclosure" can be taken according to local conditions, such as building fences, placing water baffles at the gate, and configuring small pumps.

2, don't litter, sundry, etc. Into the sewer, in case of blockage, in order to avoid flooding when the rainstorm comes.

3. Power sockets, switches, etc. Residential buildings on the ground floor should be moved to a safe place above the ground 1 m. Once the outdoor water overflows into the house, cut off the power supply in time to prevent electric shock from hurting people.

4. Pay attention to observation when walking in stagnant water. Prevent falling into manholes or pits or holes.

5, the river is an important drainage channel in the city, are not allowed to dump garbage and waste at will, in case of siltation.

People's Daily Online-The top five signs of rainstorm must see the release of practical rainstorm response measures.