Kansai Fear of guerrilla thunderstorms today Beware of landslides and river flooding in Shiga Prefecture, where heavy rain has already occurred (Weather forecaster Toru Fujikawa June 29, 2023)-Japan Weather Association tenki.jp
Kansai Fear of guerrilla thunderstorms again today In Shiga Prefecture, where heavy rain has already occurred, beware of landslides and river flooding
June 29, 2023 12:34
Yesterday, the 28th, guerrilla thunderstorms hit various parts of the Kansai region, but today, the 29th, the weather is likely to change suddenly. If the sky suddenly darkens, you hear thunder, or a cold wind blows, take shelter in a sturdy building.
Rain clouds tend to develop and can even develop into thunder clouds
As of noon on the 29th, about half of the AMeDAS points in Kansai have already exceeded 30 degrees Celsius, making it quite hot and humid. From now on tonight, the atmospheric conditions will become very unstable, and rain clouds and thunder clouds will appear here and there. A west wind is blowing in the sky again today, so if the west sky suddenly darkens, please move to a safe place.
In addition, the water level of the river has risen significantly around Nagahama City, Shiga Prefecture, where it has been raining heavily since last night. Even after this, there is a risk of localized heavy rain accompanied by thunder in Kohoku, Shiga Prefecture. Beware of landslides and river flooding.
A sign of a guerrilla downpour
There are three major phenomena that can be precursors to a guerrilla downpour (localized downpour).
① “A black cloud is approaching”
Developed cumulonimbus clouds that bring guerrilla downpours (locally heavy rains) appear pitch black. Black clouds that appear to be moving at high speed, or the sky suddenly turning dark despite the clear sky are also signs of a guerrilla downpour (localized downpour).
② “I heard the sound of thunder.”
When you hear a rumbling sound, a thundercloud is approaching. Also, seeing lightning is one of the signs of guerrilla downpours (localized downpours).
③ A cold wind suddenly blew.
From the developed cumulonimbus clouds, cold wind blows down with raindrops. You also need to pay attention to changes in the wind.
If you feel any of these signs, evacuate to a safe place immediately. Also, when a thunder warning is issued or when the weather forecast says “unstable atmospheric conditions” or “sudden change in the weather”, there is a possibility of torrential downpours (locally heavy rain). Please note that there is
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2023-06-29 03:34:34
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