2020/10/04 23:24 Weather news
At 9:00 p.m. on Sunday, October 4, a tropical low pressure is developing in southern Japan. The Meteorological Agency has announced that the tropical low pressure is expected to turn into a typhoon within 24 hours.
Please be aware of future information, as we may get closer to Okinawa and other areas later this week.
The next typhoon will be called “Typhoon No. 14”.
▼ Tropical low pressure Sunday, October 4, 9:00 p.m.
Area of existence South of Japan
Size class //
Force class //
Move almost stagnant
Central pressure 1002 hPa
Maximum wind speed 15 m / s (near center)
Maximum instantaneous wind speed 23 m / s
![box0]()
In the future, it is expected to move north without much development and shift to a tropical low pressure off the coast of Shikoku. Although the effect of a typhoon is small, there is a risk that rain and wind will intensify mainly on the Pacific side from 23-24 by stimulating the front line after switching to tropical low pressure.
Check the latest information from time to time.
(Reference) Forecasts around the world
This tropical low pressure is expected to move from the west, but as you can see from the very large forecast circle, there is a high degree of course uncertainty. (* The size of the forecast circle indicates the uncertainty of the course, not the strength or size of the typhoon).
Comparing future positions with simulation results calculated by meteorological organizations around the world, such as Europe and the United States, there are many possible paths for tropical low pressure, from those that go west in southern Okinawa to those that They go east into southern Honshu. You can see that there is a width. It can be said that the prediction error is very large depending on the strength of the high pressure and the position of the air jet in the sky.
The impact in each area will vary greatly depending on the field. Race forecasts get more accurate as the days go by, so be sure to check the latest information from time to time.
Although Typhoon No. 12 is not expected to develop significantly, it may trigger activity from the autumn rain front that is stagnant in southern Honshu, or it may shift to temperate low-pressure nature and approach Honshu.
On the afternoon of the 21 (Monday), the area around the Kii Peninsula is likely to have the most rainfall, with heavy rains of more than 300mm expected in 48 hours through the night of the 24 (Thursday). Even in the Kanto region, the rain will mainly intensify on the Boso Peninsula, which is close to the front line, and heavy rains of 200mm or more are expected in many places.
Future power and heading will change depending on the relationship to the pressure valley in the sky approaching from the west, so check the latest forecast from time to time. Weather News will continue to monitor the impact and keep you informed.
Typhoon number in normal years
When the next typhoon occurs, it will be called “Typhoon No. 14”.
This year, the total number of typhoons that occurred in July was very small, at 2, but there were 7 typhoons in August and 4 typhoons in September.
Although the number of typhoons approaching and landing in autumn is small each year, they can approach the Honshu area with great force, so we cannot be vigilant. Recheck preparations for heavy rains and storms caused by typhoons.
As for the names of typhoons, 140 names proposed by the member countries of the international organization “Typhoon Committee” are prepared in advance and given in the order of appearance.
Typhoon # 13’s name “Kujira” is a name proposed by Japan and is taken from the constellation “Kujira”.
