Taiwan Typhoon Report

Taiwan Typhoons

Typhoon BAVI

Updated: 7/10/2026

THE EYE OF TYPHOON BAVI WILL NOT MAKE LANDFALL ON TAIWAN, BUT THE OUTER EDGE OF ITS WIND AND RAIN RADIUS WILL REACH THE ISLAND
Typhoon Bavi is not forecast to make landfall on Taiwan. The eye is forecast to pass just north of Taiwan and south of Japan's southern islands, in the Taiwan-Yonaguni Strait, about 120 to 170 km (75 to 106 miles) off Taiwan's northeast coast around noon Saturday July 11th.

WIND AND RAIN ARRIVAL
Bavi's outer rain bands have already reached northern Taiwan and Yilan during Friday July 10th in the afternoon. Rain is forecast to spread across Taipei, New Taipei, Keelung, Taoyuan and Yilan, and into the mountain areas of Hsinchu, Miaoli, Taichung and central and southern Taiwan, during Friday July 10th in the evening.

Bavi's radius of sustained winds of at least 50 km/h (31 mph) is forecast to reach Taiwan around 9:00 p.m. Friday July 10th. The most intense rain and wind are expected from around 9:00 p.m. Friday July 10th through late afternoon Saturday July 11th.

The strongest winds are expected from Taoyuan north through New Taipei and Keelung, and along Yilan's coast, from Friday July 10th late in the evening through Saturday July 11th in the afternoon. People in exposed coastal areas should plan to remain indoors during that period, especially Saturday July 11th from morning through early afternoon.

CLOSEST APPROACH
About 120 to 170 km (75 to 106 miles) northeast of Taiwan around noon Saturday July 11th.

MOST INTENSE CONDITIONS
From around 9:00 p.m. Friday July 10th through late afternoon Saturday July 11th, largely across Taipei, New Taipei, Keelung, Taoyuan and Yilan, and in the mountain areas of Hsinchu, Miaoli and Taichung.

HEAVIEST RAIN
Northern Taiwan and Yilan, especially the mountain areas of New Taipei, Taoyuan, Hsinchu and Miaoli.

These areas include Wulai and Pinglin in New Taipei; Fuxing in Taoyuan; Jianshi and Wufeng in Hsinchu; Tai'an and Nanzhuang in Miaoli; and Datong and Nan'ao in Yilan. Heavy mountain rain is also forecast in Heping District, Taichung.

From Thursday July 9th through Sunday July 12th, total rainfall may reach 600 to 900 mm (24 to 35 inches) in the mountain areas of New Taipei, Taoyuan, Hsinchu and Miaoli. Much of that rain is expected from Friday July 10th in the evening through Saturday July 11th in the afternoon.

Heping District and other Taichung mountain areas may receive 500 to 800 mm (20 to 31 inches) from Thursday July 9th through Sunday July 12th.

HEAVIEST WIND
Gusts of at least 118 km/h (73 mph) are possible from Friday July 10th late in the evening through Saturday July 11th in the afternoon.

The most exposed areas are New Taipei's north and northeast coast, including Tamsui, Sanzhi, Shimen, Jinshan, Wanli, Ruifang and Gongliao; Keelung; Yilan's coast near Toucheng and Su'ao; and Matsu, Lanyu and Green Island.

IMPROVEMENT
Wind and rain should begin easing Saturday July 11th in the evening. Taiwan is forecast to leave Bavi's 50 km/h (31 mph) wind radius around 2:00 a.m. Sunday July 12th.

Bavi should stop directly influencing Taiwan's weather by Sunday July 12th in the late morning. Residual moisture may continue producing showers through Sunday July 12th. Conditions should become more settled Monday July 13th, although afternoon thunderstorms will remain possible.

STORM STRENGTH
Bavi weakened from a strong typhoon to a moderate typhoon overnight Thursday July 9th into Friday July 10th.

It may strengthen slightly before passing north of Taiwan on Saturday July 11th, but it is not forecast to regain its former peak strength. It should begin weakening again after its closest approach Saturday July 11th in the afternoon.

Although Bavi has weakened, its wind field remains approximately 760 km (472 miles) across.

24-Hour Storm Track

Taiwan Rainfall Forecast Next 48 Hours

Taiwan Typhoon Statistics

During an average year a total of 26-27 tropical systems will develop. Four usually in the first 6 months of the year & the remaining 20+ during the last 6 months.

Typhoon Q & A

What things should one do to prepare for a typhoon?

1. In the aftermath of many storms, the hardest hit areas can have their water mains shut down. This can last for several days. Having a 5 gallon bottle of water, or two, in a closet somewhere can make drinking, eating (and showering or using the toilet) a lot easier. It won't be any fun getting them, but if you are in an area apt to be hard hit, having them there will make you pretty happy if things go bad in terms of water in your neighborhood.
2. Sea warnings are announced 24 in advance radius affecting shipping lanes. Land Warnings 18 hours in advance of the radius of the storm reaching land.
3. After wind damage, the most common problem faced in Taiwan comes from flooding. If you are in an area that is likely to be hard hit and on a ground floor or in a basement structure, get yourself and your stuff to a second floor.

What does "maximum sustained wind" mean ?

The maximum sustained wind mentioned are the highest 1 min surface winds occurring within the circulation of the system. These "surface" winds are those observed (or, more often, estimated) to occur at the standard meteorological height of 10 m (33 ft) in an unobstructed exposure (i.e., not blocked by buildings or trees).

During a Typhoon/hurricane are you supposed to have the windows and doors on the storm side closed and the windows and doors on the lee side open?

NO! All of the doors and windows should be closed throughout the duration of the hurricane. The pressure differences between the inside of your house and the outside in the storm do not build up enough to cause your windows to blow out.

Stages

1. Tropical Disturbance (Tropical Wave): Unorganized mass of thunderstorms, very little, if any, organized wind circulation.
2. Tropical Depression: Has evidence of closed wind circulation around a center with sustained winds from 20-34 knots (23-39 mph), and the storm generally doesn't feel very good about itself.
3. Tropical Storm: Maximum sustained winds are from 35-64 knots (40-74 mph). The storm is named once it reaches tropical storm strength.
   The Taiwan weather service categorizes Tropical Storms as Category 1 Typhoons. (In Taiwan there are only 3 storm levels.)
4. Typhoon or Hurricane: Maximum sustained winds exceed 64 knots (74 mph). Fives categories below:

Categories of Typhoons, Hurricanes
Western Category	Miles per Hour / Kilometers per Hour	Taiwan Category	Description
1	74 - 95 / 119 - 153	2	Damage primarily to shrubbery, trees, foliage, and unanchored homes. No real damage to other structures. Some damage to poorly constructed signs. Low-lying coastal roads inundated, minor pier damage, some small craft in exposed anchorage torn from moorings.
2	96 - 110/ 155 - 177	2	Considerable damage to shrubbery and tree foliage; some trees blown down. Major damage to exposed mobile homes. Extensive damage to poorly constructed signs. Some damage to roofing materials of buildings; some window and door damage. No major damage to buildings. Coast roads and low-lying escape routes inland cut by rising water 2 to 4 hours before arrival of hurricane center. Considerable damage to piers. Marinas flooded. Small craft in unprotected anchorages torn from moorings. Evacuation of some shoreline residences and low-lying areas required.
3	111 - 130 / 179 - 209	2, up to 113 mph / 182 kph 3, from 114 mph / 183 kph	Foliage torn from trees; large trees blown down. Practically all poorly constructed signs blown down. Some damage to roofing materials of buildings; some wind and door damage. Some structural damage to small buildings. Mobile homes destroyed. Serious flooding at coast and many smaller structures near coast destroyed; larger structures near coast damaged by battering waves and floating debris. Low-lying escape routes inland cut by rising water 3 to 5 hours before hurricane center arrives. Flat terrain 5 feet or less above sea level flooded inland 8 miles or more. Evacuation of low- lying residences within several blocks of shoreline possibly required.
4	131 - 155 / 211 - 249	3	Shrubs and trees blown down; all signs down. Extensive damage to roofing materials, windows and doors. Complete failures of roofs on many small residences. Complete destruction of mobile homes. Flat terrain 10 feet or less above sea level flooded inland as far as 6 miles. Major damage to lower floors of structures near shore due to flooding and battering by waves and floating debris. Low-lying escape routes inland cut by rising water 3 to 5 hours before hurricane center arrives. Major erosion of beaches. Massive evacuation of all residences within 500 yards of shore possibly required, and of single-story residences within 2 miles of shore.
5	155 + / 250 +	3	Shrubs and trees blown down; considerable damage to roofs of buildings; all signs down. Very severe and extensive damage to windows and doors. Complete failure of roofs on many residences and industrial buildings. Extensive shattering of glass in windows and doors. Some complete building failures. Small buildings overturned or blown away. Complete destruction of mobile homes. Major damage to lower floors of all structures less than 15 feet above sea level within 500 yards of shore. Low-lying escape routes inland cut by rising water 3 to 5 hours before hurricane center arrives. Massive evacuation of residential areas on low ground within 5 to 10 miles of shore possibly required.