
AI-generated summary
During the seasonal change, the northeast monsoon begins to affect northern Taiwan, bringing cooling and rainfall. At the same time, there are active tropical systems in the northwest Pacific, Typhoon Caiyun has formed, and the NOLO cross-border hurricane is expected to move into the northwest Pacific.
Jia Xingxing, director of Taiwan Integrated Disaster Prevention Engineering Technology Consulting Company, said that starting from tomorrow, there will be a "two-stage cooling". Especially in the second wave, the low temperature in the open areas in the north will drop to 18 degrees! (File photo)
The northeast monsoon will arrive tonight (1st). After nightfall, rainfall will begin in the windward north coast, northeast corner, and Yilan area. Tomorrow and the day after tomorrow (2nd to 3rd), rainfall will increase in Taoyuan, Greater Taipei, the north coast of Keelung, Yilan, and the northern part of Hualien. In this regard, Jia Xingxing, director of Taiwan Integrated Disaster Prevention Engineering Technology Consulting Company, said that starting from tomorrow, there will be a "two-stage cooling". Especially in the second wave, the low temperature in the open areas in the north will drop to 18 degrees!
Jia Xingxing said in a Facebook PO post that it’s really time to bring out the thin coats when the season changes! It’s still hot across Taiwan today, but starting from tomorrow there will be a “two-stage cooling”. Especially in the second wave, the low temperature in the open areas in the north will drop to 18 degrees! In addition, "Typhoon Caiun" has formed at 2 o'clock in the morning today, and "cross-border hurricane NOLO" will also move into the central Pacific. Today, we have specially compiled "the latest maple viewing information from Japan and South Korea" for you!
Please read on...
Jia Xingxing pointed out that the two-stage cooling schedule (the second wave is very noticeable), the first wave (starting tomorrow, October 2): the weak northeasterly wind moves south, and the north of Taoyuan and Yilan will feel slightly cooler; the second wave (starting October 5th): the influence of the stronger northeast monsoon! This wave of cooling is significant. The high temperature in Taipei will drop from the original 33°C to 25~27°C. The low temperature in the night and early morning is about 20°C. In the more open areas in the north, it may even drop to around 18°C! Be sure to prepare a windproof light jacket if you leave early and return late or ride a bicycle. Rainfall on the windward side: Affected by the northeast monsoon, the north of Taoyuan, the north coast of Keelung and Yilan have a high chance of rainfall and more moisture (especially in Yilan, you need to pay attention to local heavy rain). Be sure to bring rain gear when going out.
Jia Xingxing continued to point out that the latest trend in the tropical system (the formation of Typhoon Caiyun ✕ the cross-border movement of NOLO), Typhoon Caiyun has officially formed at 2 am today (10/1)! The current environmental guidance is weak, and it first moves westward, and then is guided by high pressure to turn northward and head toward the "sea off the southeastern part of Japan". There will be no direct impact on Taiwan, but friends traveling to Japan from October 5 to 7 should pay attention to the peripheral circulation.
Jia Xingxing analyzed that according to the forecast of the U.S. National Hurricane Center, "NOLO" in the Central Pacific is expected to cross the 180-degree longitude around October 4 and move into the northwest Pacific to become a cross-border typhoon. It is a must-see for overseas travel (Japan, South Korea) Red maple forecast), Japan: The mountains in the Daisetsuzan and Sounkyo areas of Hokkaido have entered the color-changing period; the mountainous areas of Honshu are expected to turn red in mid-October; the flat areas such as Tokyo, Osaka, and Kyoto are expected to fall in color from mid-November to January Late January; South Korea: Seoraksan Mountain and Wudaesan Mountain in the north are expected to turn red first in early October; Naejangsan Mountain in Jeolla Province, Jirisan Mountain and Hallasan Mountain in Jeju Island in the south will reach their peak from the end of October to early November.
Jia Xingxing reminds us about life health and safety. The temperature difference in early autumn is widening. Please pay attention to respiratory care and skin moisturizing. During the northeast monsoon, the wind and waves in the Taiwan Strait will increase and there will be long waves along the coast. Please pay special attention to safety when doing beach activities or working at sea!
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AI outlook — possibilities, not facts
The northeast monsoon will have a strong impact starting from October 5, and the low temperature in the open areas in the north will drop to around 18 degrees.
Likely · Within days
Typhoon Choiun will move westward in the next few days and then turn northward toward the sea southeast of Japan. It will have no direct impact on Taiwan.
Very likely · Within days
Cross-border hurricane NOLO will cross the 180-degree longitude around October 4 and move into the northwest Pacific
Likely · Within days

Typhoon No. 26 "Caiyun" was generated on the 1st. It is expected to develop into a strong and wide-circulation system. However, it will not directly affect Taiwan as it moves northward. Instead, it will indirectly promote the northeast monsoon that will last for a long time near Taiwan next week. The northern and eastern half will be significantly cooler. Rainfall will be concentrated on the north coast, the northeastern corner, Yilan and other places. The daytime high temperature in Taipei after next Monday is expected to remain at 25-30 degrees, and the nighttime low temperature will be 20-25 degrees.

On the first day of the National Day holiday, the cold air continues to move eastward and southward, and many places in the south will join the cooling process. From October 3rd to 4th, a new wave of cold air will move southward, and temperatures in many places in the north and south will hit record lows in the second half of this year. The rainfall in the south is relatively large, and some areas in the southwest need to be prepared for secondary disasters.

The Central Meteorological Administration predicts that the arrival of the northeast monsoon originally scheduled for October 1 will be postponed by one day, and rain will turn to the north and northeast from Friday. Wang Pinxiang, a forecaster from the Meteorological Administration, said that during the northeast monsoon, the temperature will drop below 30 degrees, about 27 to 28 degrees during the day, and about 24 degrees at night. He also predicted that there will still be some short-lived showers on the north coast of Keelung, the eastern half and the Hengchun Peninsula on Saturday and Sunday.

Tropical depression TD30 is located in the northeast and east of Guam. It is expected to intensify into Typhoon "Caiyun", the No. 27 internationally numbered typhoon, which can reach the intensity of a severe typhoon and move northward. However, it is not expected to directly affect Taiwan, and the probability of affecting the Japanese mainland is not high. Whether the external circulation will affect Kantō and Tohoku of Japan still needs to be observed in the later path.

Meteorological expert "Taiwan Typhoon Forum | Weather Emergency" stated that the intensity of Typhoon No. 25 Shuliji has been significantly weakened. The Central Meteorological Administration confirmed that it weakened into a mild typhoon at 8:00 on the 29th. It is located 1,290 kilometers northeast of Taipei. In the coming week, tropical systems near Guam and the northwest Pacific Ocean will be active. It is expected that 1 to 2 typhoons will form, but there is no sign of approaching Taiwan.

Today and tomorrow, the Greater Taipei Basin, the western inland and the East Longitudinal Valley will have a high temperature of about 36 degrees, and it will feel hot around noon. The northeast monsoon will strengthen from Thursday, with increasing cloud cover and the chance of brief showers in the north and east. The high temperature will drop to 28 to 31 degrees, and the heat will ease. The impact will be less in the central and southern parts, where the high temperature will still remain at 32 to 35 degrees.