== Report on Tropical Storm 0411 ==

[July 26 - 27, 2004]

Figure 1. 24-hr rainfall map [27/08-28/08BJT, July], FY-1D VIS imagery [27/0853BJT, July] & Enhanced IR + QuikSCAT imagery [27/0500BJT, July]

Prepared by Huang Chunliang

{Part I} Introduction

Only NMC and GRMC, both are the sub-agencies of CMA (China Meteorological Administration), classified the system as a Tropical Storm in real time, while HKO, JMA, TMD and SMG (Macao) ranked it as a Tropical Depression only. Another three TCWCs, JTWC, CWB and PAGASA, however, just treated 94W as a Tropical Disturbance/Low Pressure Area. It should be noted that the last time we had a NMC TS without a JMA number (i.e., JMA never regarded it as a TS) could be traced back to mid December 1999, when NMC issued several warnings on a SCS TS (numbered TS-9917 by NMC and TD-33W by JTWC).

Both NMC and GRMC initiated the TC warnings on TD-03 at 26/0600Z. And the MSW of 30 kts was kept for three warning cycles in all before two ships reported winds of gale force in the wee hours on the 27th (locally). So the depression was upgraded to Tropical Storm 0411 at 27/0000Z. It took only three hours for the unnamed storm, which turned out to be a short fuse, to make landfall. According to the NMC and GRMC warnings, Tropical Storm 0411 made landfall in the coastal region between Huilai County and Lufeng City, Guangdong Province around 27/0305 UTC with a MSW of 40 kts and a CP of 995 hPa. Once moved inland, the storm began to fade rapidly. The cyclone was downgraded to a 25-kt depression at 27/0600Z, when China issued their final warning.

Please refer to Part II for NMC+HKO+JMA+TMD tracks for the interesting storm.

Figure 2. NMC track map for TS-0411

{Part II} Tracks

Track from NMC/CMA/Beijing

Date/Time	Status	Coordinate	Pressure	Wind
26/06Z	TD	19.2N 118.2E	1000HPA	14M/S
26/12Z	TD	19.4N 117.9E	1000HPA	14M/S
26/18Z	TD	19.6N 117.7E	1000HPA	14M/S
27/00Z	TS	22.7N 116.6E	990HPA	23M/S
27/03Z	TS	22.9N 116.2E	995HPA	20M/S
27/06Z	TD	23.3N 115.7E	1000HPA	12M/S

Track from HKO/Hong Kong

Date/Time	Status	Coordinate	Pressure	Wind
26/18Z	TD	21.7N 117.1E	1000HPA	25kts
26/21Z	TD	22.2N 116.9E	998HPA	30kts
27/00Z	TD	22.6N 116.5E	998HPA	30kts
27/03Z	TD	23.0N 116.1E	998HPA	30kts
27/06Z	TD	23.4N 115.7E	1000HPA	25kts

Track from JMA/Tokyo

Date/Time	Status	Coordinate	Pressure	Wind
27/00Z	TD	22.5N 116.6E	998HPA	30kts
27/06Z	TD	23 N 116 E	1000HPA	25kts

Track from TMD/Bangkok

Date/Time	Status	Coordinate	Pressure	Wind
27/00Z	TD	22.5N 116.5E	998HPA	30kts
27/06Z	TD	23.5N 115.5E	1000HPA	30kts

{Part III} Winds (Guangdong)

The majority of the counties/cities of coastal southeastern Guangdong's Jieyang, Shantou and Shanwei Cities, as well as some counties/cities of Chaozhou City, reported sustained winds of Beaufort Force 6 to 8, gusting to Force 9 to 10 during the storm. Significant gust reports included: Station Jiadong, Lufeng City (a sub-city of Shanwei City) ---- 27.1 m/s; Huilai Chuanqiao Reservoir (located in Huilai County, Jieyang City) ---- 25.3 m/s, etc.

{Part IV} Rainfalls (Guangdong & Fujian)

Guangdong Province

[27/00-28/00Z]: Rains >50 mm were recorded in 33 counties/cities, among which, Heping County, Fengshun County, Wengyuan County, Chaozhou City, Lianping County, Chao’an County, Shantou City and Chaoyang City reported rains >100 mm with Qingzhou, Heping County reporting the highest amount of 170.2 mm.

[28/00-29/00Z]: Rains >50 mm were recorded in 29 counties/cities, among which, Shanwei City, Sihui City, Zhongshan City, Fengkai County, Raoping County and Zhuhai City reported rains >100 mm with Nanlang, Zhongshan City reporting the highest amount of 182.6 mm.

[29/00-30/00Z]: Rains >50 mm were recorded in 28 counties/cities, among which, Huilai County, Maoming City, Puning City, Suixi County reported rains >100 mm with Maoming City reporting the highest amount of 112.5 mm.

Fujian Province

[27/00-29/00Z]: 3 stations (Yunxiao, Zhaoan & Dongshan) located in southern Fujian recorded rains >100 mm with Yunxiao County, Zhangzhou City reporting the highest amount of 116.6 mm.

Artificial Rain

Artificial rainfall missions were selectively carried out in a few regions of both Guangdong and Fujian Provinces, where drought was relaxed to some extent thanks to the rains, whether artificial or not.

{Part V} Damage and Casualties (Guangdong)

Ø In Nan'ao County, Shantou City, 11 fishermen were confirmed dead and another 11 were reported missing and feared dead after a fishing vessel capsized near Guangdong's Nanpeng Dao around the noon of July 27 (locally).

Ø In Huilai County, Jieyang City, another fishing boat was bowled over by the stormy waves, leaving two fishermen missing in the evening of July 27 (locally).

Ø In Chao’an County, Chaozhou City, one person was killed when a tornado hit the county's Fengtang and Fuyang Towns around 27/1100 (BJT). Another seven residents were injured, when more than 100 houses in four villages were damaged or destroyed. Preliminary statistics indicated that a total of 409 people from 93 families were damaged with 24 families homeless. Direct economic losses were estimated at 11.2 million yuan.

Ø Damage on coastal dikes, water conservation facilities and farmlands were also reported in the Province.