What does the orange warning of hail mean?

Hail orange warning signal is an early warning signal made by meteorological department before the arrival of hail through meteorological monitoring, reminding people to avoid hail and industrial and commercial enterprises to minimize the losses caused by hail. Hail orange warning signal is the first-class hail warning signal.

Blue is the lowest warning level, and blue warning signals include frost blue warning signal, gale blue warning signal, cold wave blue warning signal, blizzard blue warning signal, rainstorm blue warning signal, typhoon blue warning signal, flood blue warning signal, low temperature cold wave blue warning signal and thunderstorm blue warning signal.

The meaning of the orange warning signal of typhoon: it may be affected by tropical cyclones within 12 hours, and the average wind force may reach 10 or above, or the gust 1 1 above; Or have been affected by tropical cyclones, the average wind force 10~ 1 1, or the gust1/kloc-0 ~/2 may continue.

Meaning of rainstorm orange warning signal: in the past three hours, the local rainfall has reached more than 50 mm, and the rainfall may continue. High temperature orange warning signal meaning: the weather is hot. Generally speaking, the maximum temperature will rise above 37℃ within 24 hours. Meaning of orange warning signal of cold wave: Due to the invasion of cold air in the north, it is expected that the local minimum temperature will drop below 5℃.

Hail orange warning signal meaning: Hail may be accompanied by lightning weather within 6 hours, and may cause hail disaster. The meaning of the orange warning signal of blizzard: within 6 hours, the traffic volume will reach more than10mm, or it has reached more than10mm, and the snowfall continues, which may or has already caused great impact on traffic or agriculture and animal husbandry.

Precursors of hail:

First, I feel hot and cold, with high humidity. At noon, the strong solar radiation causes air convection, which is easy to produce thunderstorm clouds and hail.

The second is to look at the color of the clouds. The color of hail cloud is first white and then black, and then red appears in the cloud, forming white, black and red random moire, and the edge of the cloud is khaki.

Thirdly, listening to the thunder, Lei Yin is very long, with constant noise and dull voice. Like a millstone, there will be hail.

The fourth is to watch lightning. Generally, the lightning of hail clouds is mostly horizontal lightning, while rain clouds are vertical lightning.

In the long-term struggle with nature, the working people in our country have accumulated rich experience in understanding the law of hail activity based on careful observation of the phenomena of sound, light and electricity in the clouds. According to the different characteristics of thunder and lightning in thunderstorm clouds and hail clouds, there is a saying that there are more thunder and more hail. People from all over the country also observed that before the hail came, the clouds were rolling and rolling very badly.