On the morning of the 4th, after information about North Korea's missile launch was transmitted, a post on an Internet SNS speculated that it was the trajectory of a missile because lines that looked like breaks in rain clouds appeared on the Hokkaido screen of the weather radar. was one after another.
Regarding this, the Japan Meteorological Agency says that the radio waves are blocked by the mountain and appear like a line, and it is incorrect information unrelated to the missile.
Before 7:30 a.m. on the 4th, the government announced through J-alert, a nationwide instantaneous warning system, that North Korea appeared to have fired a missile toward Hokkaido.
After the information was communicated, a series of posts on SNS such as Twitter, quoting images from the Japan Meteorological Agency's weather radar, speculated that the trajectory of the missile was reflected, such as "Is this a missile trail?"
Looking at the radar image from that time, you can see a line that looks like a break in a rain cloud from the vicinity of Nanae Town on the Oshima Peninsula in Hokkaido toward the northwest.
Regarding this, the Japan Meteorological Agency says that the broken lines in the weather radar are unrelated to the missile, and that the information associated with the missile's trajectory is incorrect information.
According to the explanation, a weather radar is installed near the summit of Mt. Yokotsu in Nanae Town, where the line can be seen, and it is a mechanism that emits radio waves to observe rain clouds in the surrounding area.
However, the part that cannot be observed because of the mountains in the northwest direction appears as a gap.
It is said that such a phenomenon can be seen from the time of ordinary rain.
The phenomenon of partially blank weather radars also occurs in other regions. On the weather radar in Kashiwa City, Chiba Prefecture, radio waves are blocked by skyscrapers, and a line like a break in rain clouds similar to Hokkaido can be seen. It means that you will be
The Japan Meteorological Agency said, "Weather radar is for observing rain clouds, not for missiles."