TC Watch / 熱帶氣旋 > Selected TC Review / 重要熱帶氣旋回顧 > 201306W (RUMBIA 溫比亞) [Refresh 更新]
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(First draft issued on July 29, 2013; final version issued on August 5, 2013)
(初稿於 2013 年 7 月 29 日發出,最後版本於 2013 年 8 月 5 日上載)
Brief profile of RUMBIA 溫比亞小檔案:
JTWC number 聯合颱風警報中心 (JTWC) 號碼 | 06W |
International number 國際編號 | 1306 |
Period of existence 生存時期 (JTWC) | 2013/06/28 08 HKT - 2013/07/02 08 HKT |
Lifetime 壽命 (JTWC) | 4.00 days 日 |
Maximum 1-minute wind (JTWC) JTWC 一分鐘平均最高中心風速 | 65 knots 節 (Category 1 Typhoon 一級颱風) |
Minimum pressure (JTWC) JTWC 最低氣壓 | 974 hPa 百帕 |
Highest TC signal by HKO (if applicable) 香港天文台發出最高熱帶氣旋警告信號 |
3 (Strong Wind Signal 強風信號) |
Closest point of approach by HKO (if applicable) 香港天文台所示之最接近距離 (如適用) |
SW 380 km (real-time warning 實時報告) / SSW 385 km (TC report 熱帶氣旋報告) |
Time of closest approach by HKO (if applicable) 香港天文台所示之最接近時間 (如適用) |
Around 約 2013/07/02 00 HKT (real-time warning 實時報告) / 2013/07/01 15 HKT (TC report 熱帶氣旋報告) |
Lowest pressure recorded at HKO (if applicable) 香港天文台錄得的最低氣壓 (如適用) |
1004.0 hPa 百帕 (2013/07/01 14:43 HKT) |
TC signals for Hong Kong & Track 香港曾經生效的熱帶氣旋警告和路徑圖:
Table 表:
Signal 信號 |
Date and time 日期和時間 |
Distance from HK 與香港的距離 |
Predicted movement 預測移動方向和速度 |
Max. 10-min winds 中心最高十分鐘平均風速 |
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2013/06/30 (SUN) 21:10 HKT | SSE 720 km | NW at 28 km/h | 85 km/h (45 knots, TS) |
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2013/07/01 (MON) 13:15 HKT | SSW 400 km | NW at 30 km/h | 105 km/h (55 knots, STS) |
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2013/07/02 (TUE) 05:10 HKT | WSW 420 km | NW at 25 km/h | 105 km/h (55 knots, STS) |
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2013/07/02 (TUE) 09:40 HKT | W 480 km | NW at 25 km/h | 90 km/h (50 knots, STS) |
Figure 圖:
(Track courtesy of Lorenzo. Data from HKO. 鳴謝 Lorenzo 提供路徑圖,資料取自天文台)Percentile rank among storms with #3 Signal (at compilation of this review)*: *This measures the relative wind strength in Hong Kong caused by this storm compared with others that share the same signal. 指標顯示此風暴相對於其他發出同樣信號的風暴為香港帶來之風力強度 For more information, please refer to Wind Speed Data for TCs that Have Affected Hong Kong. 更多資訊載於 影響香港氣旋之風速數據 頁 |
Overall: 總計: |
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Moderately weak 中等偏弱 |
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Component Ranks 分部等級 | ||||||
Reference stations: 參考站: |
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Moderately weak 中等偏弱 |
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Victoria Harbour: 維多利亞港: |
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Moderately weak 中等偏弱 |
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Urban: 市區: |
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Moderately weak 中等偏弱 |
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Offshore & high ground 離岸和高地: |
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Weak 弱 |
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Cyclones that attained similar rating (with signal #3): MEGI (2010), noname (2006/9), WUKONG (2000) 相近級別之熱帶氣旋 (三號信號):鮎魚 (2010)、無名 (2006/9)、悟空 (2000) |
IR imagery animation 紅外線雲圖動畫:
TC track from HKWW 本站的熱帶氣旋路徑圖:
TC track from HKO 天文台的熱帶氣旋路徑圖:
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Please click here for bulletins on RUMBIA. 請按這裡。
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Unless otherwise stated, all times below are in Hong Kong Standard Time (UTC+8)
除非特別註明,下文時間均為香港標準時間 (協調世界時加 8 小時)
A tropical disturbance developed east of the Philippines towards the end of June. It gathered strength on June 28 and became the 6th tropical depression to form in northwestern Pacific basin this year at 8 am. The initial forecast by the JTWC directed 06W towards Hong Kong as a result of persistent northwestward movement in the southwestern periphery of the subtropical ridge followed by a poleward turn as the ridge weakened. This prediction was in accordance with model outputs which formed a tight cluster in the vicinity of Hong Kong.
There was relatively low shear near 06W, but the storm was surrounded by high shear areas. With the ridge firmly in place, 06W moved quickly in the direction of WNW to NW. It consolidated during June 28 and was upgraded into a tropical storm by the JMA that night. 06W was assigned the name RUMBIA, which was contributed by Malaysia and is a type of palm tree that yields sago. Most agencies still put RUMBIA towards Hong Kong, albeit as a relatively weak system that could not intensify substantially due to its rapid speed and loss of energy as it crossed the Philippines.
RUMBIA made landfall at Eastern Samar in the morning of June 29 as a slightly sheared system. The storm did not lose strength during the passage in the Philippines as it mostly tracked across seas. As a result of the Philippine landmass, RUMBIA deflected towards the WNW and passed south of Manila that night. The storm maintained its high speed and entered the South China Sea in the morning of June 30, after spending a day crossing the island country. Parts of the Philippines suffered heavy loss, mostly due to flooding and derived damage.
一個熱帶擾動於 6 月下旬在菲律賓以東海域發展。它於 28 日上午 8 時增強為本年西北太平洋第 6 個熱帶低氣壓。06W 當時處於副熱帶高壓脊西南部,該脊預料於後期減弱,因此 JTWC 初始預報顯示 06W 長遠將以西北轉西北偏北方向移動,趨向香港一帶。此預測與模式預報相似,它們均把登陸點直指香港附近。
06W 附近垂直風切變相對較低,但外圍被高風切區包圍。由於副高強盛,06W 快速向西北偏西至西北移動。它於 28 日整固,晚間被 JMA 升格為熱帶風暴,並被命名為溫比亞。此名字由馬來西亞提供,為一種盛產西米的棕櫚樹。各機構均預測溫比亞趨向香港鄰近地區,但由於其高速移動且預料會經過菲律賓使能量流失,強度預測並不高。
溫比亞於 29 日早上登陸東薩馬省,系統當時有少許被切離。由於溫比亞通過菲律賓時大多數時間處於海面上,它並無減弱跡象;但受其地形影響,溫比亞偏向西北偏西移動,於當晚掠過馬尼拉以南。風暴保持其移速,並於 30 日早上進入南海,只消一日便通過菲律賓。該國部分地方遭受水浸及其他相關破壞,損失頗為嚴重。
Figure 1 - Numerical model predictions at 8 pm, June 28
圖 1 - 6 月 28 日晚上 8 時數值模式預報
Figure 2 - RUMBIA at formation
圖 2 - 溫比亞初形成之時
Figure 3 - JTWC's initial forecast
圖 3 - JTWC 之初始預報
Figure 4 - Steering flow chart at 8 am, June 29
圖 4 - 6 月 29 日上午 8 時之駛流場圖
Figure 5 - RUMBIA crossing the Philippines
圖 5 - 溫比亞正橫過菲律賓
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Due to RUMBIA's WNW motion across the Philippines, agencies started to adjust their track forecasts to the west, depicting landfall near western Guangdong or even Leizhou Peninsula. The storm started to intensify again as land interaction diminished, and resumed its NW track. It entered Hong Kong's 800-km circle near 5 pm on June 30, and the #1 Standby Signal was issued at 9:10 pm that night when RUMBIA was 720 km SSE of the territory. It was forecast that rain and wind would strengthen the next day as RUMBIA moved to SW of Hong Kong. Since the next day was the anniversary of Hong Kong's handover to China, this meant that activities on that day could be affected, most notably the July 1 demonstration as well as the Hong Kong Dome Festival, a live outdoor concert.
The storm tracked steadily NW across the South China Sea during the night of June 30. At that time it was still trying to re-organize itself following the deterioration of structure after crossing the Philippines. Although RUMBIA's convections were noticeably stronger in its southern semicircle, a rainband in its northern side struck Hong Kong in the morning of July 1. Scattered showers started to affect the territory; around 10 mm of rain fell in various parts of Hong Kong. The thunderstorm warning was also issued briefly in the morning.
As RUMBIA edged closer, winds strengthened during the day and was the most noticeable in the morning and early afternoon. Strong force winds were observed at Cheung Chau and Tai Mei Tuk near noon, and continued to strengthen. The Observatory hence issued the #3 Strong Wind Signal at 1:15 pm. Although it was previously mentioned that the Dome Festival would be cancelled under the Strong Wind Signal, the organizers made an announcement that it would proceed normally just before the signal issuance, and as a result the concert was not cancelled.
Another rainband struck Hong Kong between 3 and 4 pm. Most stations recorded a peak in wind speed within this time. The squally showers did not last long, but the concert was eventually cancelled at 5 pm as outdoor conditions were still inclement. The rally, on the other hand, proceeded as usual without major disruptions due to the weather.
Contrary to initial predictions, RUMBIA intensified substantially as it crossed the South China Sea. An eye was visible in satellite imageries that afternoon. The JTWC upgraded RUMBIA into a typhoon that afternoon, whereas other agencies (which mostly use 10-minute wind speed averages) fixed RUMBIA as a severe tropical storm.
After the passage of the rainbands, winds diminished towards the evening. Several stations were able to maintain strong force winds, but most had fallen to below that level. Due to the lack of deep convections in RUMBIA's northern semicircle, Hong Kong was hardly affected by showers that night. At several stations like Chek Lap Kok, Lau Fau Shan and Sai Kung, winds strengthened again that night but only for very brief moments. RUMBIA made its closest point of approach to Hong Kong at around midnight at a distance of 380 km SW of the territory [Note 1]. At such distance a higher signal was deemed unnecessary.
由於溫比亞通過菲律賓時移向偏西,各台開始將路徑預測往西調,登陸點變成廣東西部甚至雷州半島。脫離陸地影響的溫比亞開始增強,並回復西北路徑。它於 6 月 30 日下午約 5 時進入本港 800 公里範圍,而一號戒備信號於當晚 9 時 10 分發出,當時溫比亞處於本港東南偏南 720 公里。隨著溫比亞靠近,天文台預測本港風雨將於翌日增強。由於之後一天為香港回歸紀念日,當天多個活動可能受影響,較為注目的有七一遊行及巨蛋音樂節。
風暴於 30 日晚穩定向西北移動,橫過南海。通過菲律賓令溫比亞的組織變得略為鬆散,而它於當晚逐漸重新整固。雖然溫比亞南面的對流明顯較強,其北部一條雨帶於 7 月 1 日早上影響香港,本地間中有狂風驟雨,大部分地區錄得約 10 毫米雨量,而雷暴警告亦曾發出。
溫比亞當天進一步靠近香港,風勢於日間增強,而增幅於早上及下午初段較為明顯。長洲及大美督於近中午時份開始吹強風,並有繼續增強跡象。天文台於下午 1 時 15 分改發三號強風信號。雖然先前已訂明三號信號生效下巨蛋音樂節會取消,但主辦單位於三號信號發出前已宣布音樂會將如期舉行。
另一道雨帶於下午 3 至 4 時掃過本港,大部分風速站於這段時間錄得風速峰值。狂風驟雨維持時間不長,但由於露天環境較為惡劣,巨蛋音樂節結果提早於下午 5 時結束。另一邊廂,同時間舉行的七一遊行則沒有因天氣而受到太大影響。
與先前預計有別,溫比亞於橫過南海時明顯增強,下午時份風眼於衛星雲圖上可見。JTWC 遂將溫比亞升格為颱風,而其他大多數使用 10 分鐘平均風速指標的機構則將其定為強烈熱帶風暴。
雨帶過後,本港風勢於傍晚減弱,只剩下數個氣象站吹強風。由於溫比亞北面缺乏深層對流,香港當晚幾乎沒有受驟雨影響。部分風速站如赤臘角、流浮山及西貢當晚風速曾短暫增強。溫比亞於 2 日午夜左右最接近香港,當時它集結於本港西南約 380 公里 [註一],在此距離一般認為無需改發更高信號。
Note 1: RUMBIA's distance from Hong Kong remained very stable throughout the afternoon of July 1; in the TC report the point of closest approach was 385 km SSW at 3 pm, July 1.
註一:溫比亞與香港的距離於 7 月 1 日下午幾乎保持不變;天文台的熱帶氣旋報告中指它於 1 日下午 3 時最接近香港,在本港西南偏南 385 公里處掠過。
Figures 6a and 6b - Track forecasts from various agencies on June 29 and 30
圖 6a 及 6b - 各氣象台於 6 月 29 及 30 日之路徑預測
Figure 7 - Wind field associated with RUMBIA
圖 7 - 與溫比亞相關之風場
Figure 8 - An eye appeared on visible satellite imagery on July 1
圖 8 - 一風眼於 7 月 1 日在可見光衛星雲圖上出現
Figure 9 - Rainbands associated with RUMBIA affecting Hong Kong
圖 9 - 與溫比亞相關之雨區影響本港
Figures 10a to 10c - Wind speeds and directions in Hong Kong at 9 am, 3 pm and 9 pm on July 1
圖 10a 至 10c - 7 月 1 日上午 9 時、下午 3 及 9 時之本港風速風向圖
Figures 11a to 11c - Wind speed time series at Cheung Chau, Kai Tak and Sai Kung
圖 11a 至 11c - 長洲、啟德和西貢的風速時間序列圖
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RUMBIA skirted the northeastern coast of Hainan in the small hours of July 2 without making a landfall there. It instead landed at Mazhang, Zhanjiang at around 5:30 am. It then crossed the northern Leizhou Peninsula and entered Guangxi province. The Observatory lowered the Strong Wind Signal to the Standby Signal at 5:10 am as strong winds were only confined to offshore areas and on high ground. That signal was cancelled at 9:40 am when RUMBIA was 480 km west of the territory. RUMBIA weakened into a tropical storm near noon while still moving relatively quickly inland.
RUMBIA weakened further into a tropical depression in the night of July 2, and dissipated soon afterwards. The subtropical ridge resumed its influence in southern China and the weather turned stable on July 3.
溫比亞於 2 日凌晨時份掠過海南東北部對開海域,但並未登陸。它最終於上午約 5 時 30 分登陸湛江麻章,並橫過雷州半島北部,隨後進入廣西省。隨著強風只局限於離岸及高地,天文台於上午 5 時 10 分改發一號戒備信號,而該信號亦於上午 9 時 40 分取消,當時溫比亞位處本港以西約 480 公里。溫比亞當天正午減弱為熱帶風暴,於陸上仍保持一定移速。
溫比亞隨後於 2 日晚間減弱為熱帶低氣壓,並於短時間後消散。副熱帶高壓脊恢復其對華南的影響,天氣於 3 日漸趨穩定。
Figure 12 - RUMBIA about to make landfall at Zhanjiang
圖 12 - 溫比亞即將於湛江登陸
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Station 風速站 |
Max. 10-min avg. wind speed 最高十分鐘平均風速 |
Beaufort classification 蒲福氏風級分類 |
Chek Lap Kok 赤鱲角 | 46 km/h | STRONG 強風 |
Cheung Chau 長洲 | 58 km/h | STRONG 強風 |
Kai Tak 啟德 | 39 km/h | Fresh 清勁 |
Lau Fau Shan 流浮山 | 38 km/h | Fresh 清勁 |
Sai Kung 西貢 | 44 km/h | STRONG 強風 |
Sha Tin 沙田 | 22 km/h | Moderate 和緩 |
Ta Kwu Ling 打鼓嶺 | 21 km/h | Moderate 和緩 |
Tsing Yi (SHL) 青衣蜆殼油庫 | 31 km/h | Fresh 清勁 |
Number of stations recording at least STRONG force (force 6 - 7) winds: | 3 |
Number of stations recording at least GALE force (force 8 - 9) winds: | 0 |
Number of stations recording at least STORM force (force 10 - 11) winds: | 0 |
Number of stations recording HURRICANE force (force 12) winds: | 0 |
錄得 強風 (6 - 7 級) 或更高風速的站數: | 3 |
錄得 烈風 (8 - 9 級) 或更高風速的站數: | 0 |
錄得 暴風 (10 - 11 級) 或更高風速的站數: | 0 |
錄得 颶風 (12 級) 風速的站數: | 0 |
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Table 1: Track data from HKWW:
表一 : 香港天氣觀測站之路徑資料
YYMMDDZZ Lat Long Wind |
Table 2: Maximum gust and hourly average wind speed recorded in Hong Kong from HKO:
表二 : 香港天文台公佈的各站最高每小時平均風力和陣風數據
Station | Maximum Gust | Maximum Hourly Mean Wind | ||||||
Direction | Speed (km/h) | Date/Month | Time | Direction | Speed (km/h) | Date/Month | Time | |
Bluff Head (Stanley) | SE | 77 | 1/7 | 14:35 | ESE | 36 | 1/7 | 15:00 |
SE | 36 | 1/7 | 21:00 | |||||
Central Pier | E | 59 | 1/7 | 14:48 | E | 31 | 1/7 | 14:00 |
Cheung Chau | SE | 77 | 1/7 | 16:21 | SE | 54 | 1/7 | 21:00 |
Cheung Chau Beach | E | 70 | 1/7 | 11:13 | E | 43 | 1/7 | 12:00 |
E | 70 | 1/7 | 11:14 | |||||
Green Island | ESE | 81 | 1/7 | 14:48 | ENE | 36 | 1/7 | 15:00 |
Hong Kong International Airport | ESE | 65 | 1/7 | 23:44 | ESE | 36 | 1/7 | 14:00 |
Kai Tak | SSE | 62 | 1/7 | 14:47 | ESE | 31 | 1/7 | 23:00 |
King's Park | S | 56 | 1/7 | 14:51 | ESE | 22 | 1/7 | 11:00 |
Lau Fau Shan | SE | 72 | 1/7 | 15:12 | SE | 27 | 2/7 | 09:00 |
Ngong Ping | E | 112 | 1/7 | 18:38 | E | 67 | 1/7 | 21:00 |
North Point | ESE | 76 | 1/7 | 14:46 | E | 30 | 1/7 | 13:00 |
Peng Chau | SE | 59 | 1/7 | 14:54 | E | 31 | 1/7 | 12:00 |
Ping Chau | SE | 47 | 1/7 | 17:57 | SSE | 9 | 1/7 | 17:00 |
Sai Kung | S | 103 | 1/7 | 15:21 | SSE | 36 | 2/7 | 00:00 |
Sha Chau | S | 62 | 1/7 | 14:17 | SE | 38 | 1/7 | 22:00 |
Sha Lo Wan | ESE | 67 | 1/7 | 21:31 | ESE | 31 | 1/7 | 22:00 |
Sha Tin | SSW | 43 | 1/7 | 15:08 | E | 19 | 1/7 | 22:00 |
Star Ferry (Kowloon) | ESE | 70 | 1/7 | 14:48 | E | 36 | 1/7 | 15:00 |
Ta Kwu Ling | E | 51 | 1/7 | 14:04 | E | 16 | 1/7 | 15:00 |
Tai Mei Tuk | E | 58 | 1/7 | 14:04 | E | 36 | 1/7 | 12:00 |
Tai Mo Shan | ESE | 99 | 1/7 | 17:12 | ESE | 63 | 1/7 | 16:00 |
Tai Po Kau | ESE | 62 | 1/7 | 12:01 | ESE | 31 | 1/7 | 12:00 |
Tap Mun | SE | 62 | 1/7 | 15:43 | SE | 31 | 1/7 | 23:00 |
Tate's Cairn | SW | 70 | 1/7 | 14:57 | SSW | 47 | 2/7 | 08:00 |
Tseung Kwan O | E | 41 | 1/7 | 11:58 | ESE | 14 | 1/7 | 19:00 |
Tsing Yi Shell Oil Depot | SE | 92 | 1/7 | 14:56 | SE | 25 | 2/7 | 08:00 |
Tuen Mun Government Offices | SE | 62 | 1/7 | 12:29 | SE | 23 | 1/7 | 22:00 |
Waglan Island | SSE | 96 | 1/7 | 14:32 | SSE | 51 | 1/7 | 17:00 |
Wetland Park | SE | 68 | 1/7 | 15:11 | SE | 20 | 2/7 | 09:00 |
Wong Chuk Hang | ESE | 59 | 1/7 | 14:42 | E | 23 | 1/7 | 14:00 |
Table 3: Rainfall (in millimetres) contributed by RUMBIA from HKO (figures in brackets are based on incomplete hourly data):
表三 : 香港天文台公佈的各站雨量資料 (方括號內之數據由不完整之每小時資料擷取)
Station | 30 - Jun |
1 - Jul |
2 - Jul |
Total(mm) |
|
Hong Kong Observatory | 0.0 |
29.5 |
0.0 |
29.5 |
|
Hong Kong International Airport (HKA) | Trace |
21.4 |
0.9 |
22.3 |
|
Cheung Chau (CCH) | 0.0 |
13.5 |
0.0 |
13.5 |
|
N05 | Fanling | 0.0 |
41.5 |
0.0 |
41.5 |
N13 | High Island | 0.0 |
22.0 |
0.0 |
22.0 |
K04 | Jordan Valley | 0.0 |
17.5 |
0.0 |
17.5 |
N06 | Kwai Chung | 0.0 |
39.0 |
0.0 |
39.0 |
H12 | Mid Levels | 0.0 |
18.0 |
0.0 |
18.0 |
N09 | Sha Tin | 0.0 |
18.5 |
1.0 |
19.5 |
H19 | Shau Kei Wan | 0.0 |
38.5 |
0.0 |
38.5 |
SEK | Shek Kong | 0.0 |
27.0 |
0.0 |
27.0 |
K06 | So Uk Estate | 0.0 |
36.0 |
0.0 |
36.0 |
R31 | Tai Mei Tuk | 0.0 |
29.0 |
3.5 |
32.5 |
R21 | Tap Shek Kok | 0.0 |
19.5 |
0.5 |
20.0 |
N17 | Tung Chung | 0.0 |
27.0 |
1.0 |
28.0 |
R27 | Yuen Long | 0.0 |
23.5 |
0.5 |
24.0 |
Last Accessed 最近訪問日期: Sun Sep 08 2024 12:35:35 HKT
Last Modified 最近修訂日期: Mon Jul 24 2023