7. Typhoon MATSA (Gorio/09w)                        Print this Article
>> July 30-August 8, 2005

Matsa: contributed by Laos, means 'lady fish'

A. Storm Origins

On 30 July an area of convection developed approximately 100 nm east of Yap. It was included in JTWC's STWO at 0300 UTC 30 July when animated multi-spectral satellite imagery revealed consolidating deep convection over a weak LLCC. An upper-level analysis indicated that the disturbance was embedded in a moderate wind shear environment with favourable diffluence aloft. Based on improved organization, JTWC issued a TCFA at 30/1430 UTC followed by the first warning at 31/0000 UTC. TD-09W was quickly upgraded to a 35-kt tropical storm by JTWC at 31/0600 UTC, and named Matsa after JMA raised their 10-min avg MSW to 35 kts at 31/1200 UTC. Also, at 31/1200 UTC PAGASA assigned the name Gorio after the system had drifted into their AOR.

B. Track & Intensity History

Initially moving west to west-northwestward, Tropical Storm Matsa changed onto a northwesterly heading on 31 July under the steering influence of a mid-level ridge to the east. Continuing northwestwards, Matsa slowly strengthened and reached typhoon intensity at 0000 UTC on 2 August when it was located approximately 565 nm south of Okinawa. Intensification continued to be rather slow on 2 August and satellite imagery depictions were of limited deep convection in the northern semicircle and inhibited poleward outflow. There was little change on 3 August and the MSW hovered at 75 kts for the majority of the day.

However, on 4 August, things improved and Typhoon Matsa became better organized, reaching its peak intensity of 90 kts and 950 hPa at 04/1200 UTC when it was passing approximately 200 nm west-southwest of Okinawa, Japan. On 5 August Typhoon Matsa began to weaken as it headed northwestwards, lashing northern parts of Taiwan with torrential rains and gale-force winds as the storm passed by to the north. Continuing northwestward, Matsa made landfall near Wenling, China, as a minimal typhoon around 05/1800 UTC, the second tropical cyclone to affect the Chinese mainland in nearly two weeks. Once inland, Matsa was downgraded to a tropical storm at 06/0000 UTC, and JTWC issued the final warning at this time. JMA kept Matsa at tropical storm intensity as the cyclone turned northward over eastern China until 07/1200 UTC, when that agency released the last statement on this system.

NMCC estimated a peak intensity of 90-kts while all other Asian agencies estimated peak MSW of 80 kts.

A graphic displaying the track of Typhoon Matsa/Gorio may be found at the following link: 2005_09W_MATSA.jpg

C. Damage & Casualties

Ten deaths were reported by the Chinese media. More than 1.24 million people were evacuated ahead of the storm. Matsa caused extensive damage to property and agriculture in mainland China with monetary figures estimated at 14.5 million yuan (1.7 billion US dollars). Matsa also affected Taiwan. Rainfall totals of nearly 50 inches (1270 mm) fell in 30 hours over the northern part of the island, causing landslides and widespread flooding. Damages to agriculture were estimated at T$47 million (1.5 million US dollars). No deaths were reported in Taiwan.

A more detailed description (in pdf format) may be found at the following links: GC_TC_MATSA_2005.pdf

(EDITOR'S NOTE: Additional and updated information regarding damage and casualties can be found in Huang Chunliang's China report below in Section D, Part VI.)

D. Huang Chunliang Report from China

{Part I} Landfalls

According to the NMCC warnings, Typhoon 0509 (MATSA) made its first
landfall near Ganjiang Town, Yuhuan County, Taizhou City, Zhejiang
Province, around 05/1940 UTC (August) with a MSW of 45 m/s (90 kts) 
and a CP of 950 hPa.  Crossing the Gulf of Yueqing, the typhoon made 
a second landfall near Qingjiang Town, Yueqing City (a sub-city of 
Wenzhou City), Zhejiang Province, around 05/2020 UTC with the MSW 
and CP unchanged.  The weakening tropical cyclone then passed through 
Zhejiang, Anhui, Jiangsu and Shandong Provinces successively before 
the center of Tropical Storm Matsa entered the waters of the Bohai 
Sea from Shandong Peninsula around 08/0600 UTC.  After fading into a 
tropical depression, Matsa made its final landfall near Longwangtang 
Town (38.8 N, 121.4 E), Lvshunkou District, Dalian City, Liaoning 
Province, around 08/2310 UTC with a MSW of 12 m/s (25 kts) and a CP 
of 995 hPa.  Eventually, NMCC declared Matsa extratropical shortly 
after the final landfall.

{Part II} Daily Top-10 Rainfall Obs from Taiwan Province


Ranking    Station ID         City/County         Rainfall
01         CWB 21D16          Hsinchu County      569.0 mm
02         CWB 21D15          Hsinchu County      565.0 mm
03         CWB C1E47          Miaoli County       549.0 mm
04         CWB C1D40          Hsinchu County      530.0 mm
05         CWB C0E41          Miaoli County       526.0 mm
06         CWB C1E48          Miaoli County       467.5 mm
07         CWB C1D41          Hsinchu County      461.0 mm
08         CWB C1E46          Miaoli County       445.5 mm
09         CWB 21C08          Taoyuan County      430.0 mm
10         CWB C1E72          Miaoli County       427.0 mm


Ranking    Station ID         City/County         Rainfall
01         CWB C1F89          Taitung County      843.0 mm
02         CWB C1F94          Taitung County      708.0 mm
03         CWB 21D15          Hsinchu County      688.0 mm
04         CWB 21D16          Hsinchu County      667.0 mm
05         CWB C1F87          Taitung County      595.0 mm
06         CWB 01A43          Taipei County       588.0 mm
07         CWB C1E46          Miaoli County       578.0 mm
08         CWB C1E72          Miaoli County       559.5 mm
09         CWB 21C08          Taoyuan County      558.0 mm
10         CWB C1F9H          Taitung County      557.0 mm


Ranking    Station ID         City/County         Rainfall
01         CWB C1V27          Kaohsiung County    416.5 mm
02         CWB C1V30          Kaohsiung County    296.0 mm
03         CWB C1V22          Kaohsiung County    294.0 mm
04         CWB C1R16          Pingtung County     260.0 mm
05         CWB C1V16          Kaohsiung County    250.5 mm
06         CWB C1F87          Taitung County      250.0 mm
07         CWB C1V20          Kaohsiung County    248.0 mm
08         CWB C1V19          Kaohsiung County    246.5 mm
09         CWB C1V21          Kaohsiung County    238.5 mm
10         CWB C1F94          Taitung County      190.0 mm

{Part III} Meteorological Obs from Zhejiang Province

1. Gust Obs

Forty-six stations recorded gusts of Beaufort Force 12 or higher 
during the typhoon.  Station Dongting, located in Putuo District, 
Zhoushan City, reported the highest gust of the province, peaking 
at 49.2 m/s.

2. Rainfall Obs

During the 96-hr period ending at 08/0000 UTC, rains >500 mm were
reported by 12 stations (including hydrological stations) with 
Zhongbao, Yongjia County, Wenzhou City, reporting the highest 
amount of 701.4 mm.

Extrema from Zhejiang Province during the typhoon included:

1-hr rainfall:  91.5 mm @ Cengang Reservoir, Dinghai District, 
Zhoushan City [06/1400-08/1500Z]

3-hr rainfall: 199.5 mm @ Cengang Reservoir, Dinghai District, 
Zhoushan City [06/1300-08/1600Z]

6-hr rainfall: 300.5 mm @ Huachengsi Reservoir, Dinghai District,
Zhoushan City [06/0700-08/1300Z]

12-hr rainfall: 420.0 mm @ Huachengsi Reservoir, Dinghai District,
Zhoushan City [06/0700-08/1900Z]

24-hr rainfall: 606.9 mm @ Chaiqiao, Beilun District, Ningbo City,

Daily rainfall: 589.0 mm @ Chaiqiao, Beilun District, Ningbo City, 

3-day rainfall: 690.8 mm @ Zhongbao, Yongjia County, Wenzhou City, 

{Part IV} Meteorological Obs from Shanghai Municipality

1. Wind Obs

Sustained winds recorded by Station Gaoqiao, which is located near
the mouth of Yangtse River, rose to gale force around 05/1800 UTC 
and did not drop below Beaufort Force 8 until 25 hrs later.  Peak 
gust reported by the station was 26.6 m/s.

Station Xiaoyangshan reported gusts topping 40.7 m/s--the highest
value ever reported by Shanghai--at 05/1351 UTC.

2. Rainfall Obs

During the 60-hr period ending at 08/0000 UTC, rains >300 mm were
reported by 3 stations (including hydrological stations) with 
Zhoupu, Nanhui District, reporting the highest amount of 349.5 mm.  
The station also reported the highest daily value, amounting to 
292.0 mm [06/0000-07/0000Z].

3. Hydrological Obs

Several hydrological stations reported record-breaking water 
levels during the typhoon:

Station                 Peak Water Level      Former Record
Mishidu                 4.38 m [06/1932Z]     4.27 m
Songpu Bridge           4.46 m [06/1927Z]     4.42 m
Mao Harbor              4.28 m [06/1945Z]     4.20 m
Zhujing                 4.10 m [06/2000Z]     4.08 m
Suzhou River Floodgate  4.55 m [06/1935Z]     4.45 m
Hongkou Harbor          4.36 m [06/1810Z]     4.33 m
Yangshupu Harbor        4.25 m [06/1630Z]     4.20 m
Yangshupu Harbor        4.25 m [06/1630Z]     4.20 m
Beixinjing              4.31 m [06/2005Z]     4.10 m

{Part V} Meteorological Obs from Other Provinces

1. Anhui Province

During the 72-hr period ending at 08/0000 UTC, rains >100 mm were
reported by 16 towns.  Guangde County reported the highest gust 
of the province, reaching 26 m/s on the 6th (LST).

2. Jiangsu Province

During the 72-hr period ending at 07/2100 UTC, rains >100 mm were
reported by 27 counties/cities with Taicang City (a sub-city of 
Suzhou City) reporting the highest amount of 193.8 mm.  (Zhitang, 
Changshu City (a sub-city of Suzhou City) reported 218.4 mm--the 
highest of the hydrological stations during the same period.)  
Station Yuantuojiao, located in Qidong City (a sub-city of Nantong 
City), reported a peak gust of 34 m/s--the highest value of the 
province during the storm.

3. Shandong Province

During the 24-hr period ending at 08/0100 UTC, rains >100 mm were
reported by 9 counties/cities with Rongcheng City (a sub-city of 
Weihai City) reporting the highest amount of 150.5 mm.

Lingshan Dao and Dagong Dao, both located in Qingdao City, reported
gusts of typhoon force, peaking at 36.7 m/s and 34.9 m/s, 

4. Liaoning Province

During the 31-hr period ending at 09/0000 UTC, Beiguan Reservoir,
Dalian City reported the highest rainfall amount of 175 mm.

{Part VI} Damage and Casualties

1. Mainland China

Typhoon Matsa affected 31,459,000 people in the 8 provinces/
municipalities of Zhejiang, Shanghai, Jiangsu, Anhui, Shandong, 
Liaoning, Hebei and Fujian, resulting in the deaths of 25 people and 
the direct economic losses of over 18 billion yuan.  (Refer to 
statistics below.) Thousands of flights in Shanghai, Hangzhou, Ningbo 
and Wenzhou were delayed or cancelled under stormy condition.  Subway 
traffic in Shanghai was paralysed for about five hours due to the 

  Province                   Population  
/Municipality   Evacuated     Affected       Deaths  
Zhejiang        1,429,000     10,479,000      5 
Shanghai          216,000      1,331,000      7 
Jiangsu           200,000     12,200,000      8 
Anhui              24,000      2,014,000      2 
Shandong           58,000      3,800,000      - 
Liaoning          153,000        865,000      3 
Hebei             109,000        770,000      - 
Fujian            116,000        -------      -

[TOTAL]        [2,305,000]   [31,459,000]   [25]  

  Province            Farmland        Houses      Direct economic
/Municipality        Damaged (ha.)    Toppled         loss (yuan)
Zhejiang                338,000        13,000        8,910,000,000
Shanghai                 56,000        15,000        1,330,000,000
Jiangsu               1,110,000        14,000        3,400,000,000
Anhui                   113,000         3,000          660,000,000
Shandong                354,000         3,500        2,940,000,000
Liaoning                143,000        10,000          600,000,000
Hebei                    24,000           300          170,000,000

[TOTAL]              [2,138,000]      [59,000]     [18,010,000,000]

2. Taiwan

Preliminary statistics indicated that Typhoon Matsa left two people
missing in Taiwan.  Agricultural losses in the province were 
estimated to be at least NT$ 46.89 million.

{Part VII} References (All in Chinese version)

http://ncc.cma.gov.cn  -  BEIJING CLIMATE CENTER (BEIJING)
http://www.cwb.gov.tw  -  CENTRAL WEATHER BUREAU (TAIPEI)
http://www.shanghaiwater.gov.cn - SHANGHAI WATER CONSERVANCY

E. Huang Chunliang Report from Japan

Station         Min SLP (hPa)    Peak SW (m/s)   Peak Gust (m/s)   
Miyakojima    993.1 [17/0825Z]  17.9 [17/0930Z]  34.5 [17/1209Z]
Ishigakijima  980.6 [17/1455Z]  29.1 [17/1610Z]  47.6 [17/1546Z]
Iriomotejima  -----#[--------]  24.8 [17/1420Z]  45.9 [17/1549Z]
Yonagunijima  967.9 [17/1903Z]  34.9 [17/1850Z]  54.8 [17/1843Z]

Station           Maximum Daily Rainfall (mm)
Miyakojima         106.0  [17/1500-18/1500Z]
Ishigakijima       181.0  [17/1500-18/1500Z]
Iriomotejima       335.0* [17/1500-18/1500Z]
Yonagunijima       231.5  [17/1500-18/1500Z]

Note 1 (#): Iriomotejima didn't reported a min SLP due to 
fault of the facility.

Note 2 (*): Record-breaking value for the station.

Note 3: Miyakojima is   WMO47927, 24.79N 125.28E, Alt 40 m
        Ishigakijima is WMO47918, 24.34N 124.16E, Alt  6 m
        Iriomotejima is WMO47917, 24.39N 123.75E, Alt  9 m
        Yonagunijima is WMO47912, 24.47N 123.01E, Alt 30 m

F. Huang Chunliang Report from Korea

Rainfall observations--only 24-hr amount(s) >= 100 mm listed: 

MASAN (35.18N/128.57E)           229.0 mm [07/12-08/12Z, Aug]
JINJU (35.20N/128.12E)           107.0 mm [07/12-08/12Z, Aug]
MASAN (35.18N/128.57E)           223.0 mm [08/00-09/00Z, Aug]
JINJU (35.20N/128.12E)           122.0 mm [08/00-09/00Z, Aug]

(Report written/compiled by Kevin Boyle and Huang Chunliang)

Source: Gary Padgett's Monthly Tropical Cyclone Summary - August 2005

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