Cyclone Gwenda
http://dbpedia.org/resource/Cyclone_Gwenda an entity of type: WikicatCategory5AustralianRegionCyclones
Le cyclone Gwenda est un cyclone qui a frappé l'Australie depuis la mer d'Arafura le 2 avril 1999. Sa pression atmosphérique de 900 hPa est la plus basse relevée dans le pays.
* Portail de l’Australie
* Portail de la météorologie
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強烈熱帶氣旋格温達（英語：Severe Tropical Cyclone Gwenda）是与气旋伊尼戈持平并成为澳洲地区热带气旋季有记录以来气压最强烈的气旋，气旋马希纳可能除外。 氣壓為900毫巴，是1999年世界範圍內最強烈的風暴。1999年4月2日在阿拉弗拉海形成熱帶擾動，格溫達的前兆緩慢向西移動，並逐漸變得更有組織。 4月4日，系統發展為一級熱帶氣旋，並命名為格温達。次日開始爆發性增強，在4月7日早些時候結束的30小時跨度內，風暴的最大10分鐘持續風速從75公里/小時（45英里/小時）上升到225公里/小時（140英里/小時） )，其氣壓下降到900毫巴。聯合颱風警报中心報告說，風暴已經達到薩菲爾-辛普森飓風級別的高端四級熱帶氣旋。 增強的風切變和前進速度的加速導致格温達迅速減弱。在達到峰值後不到18小時，風暴在西澳大利亞黑德蘭港以東約45公里（28英里）處登陸，風速為100公里/小時（60英里/小時）。上岸後，格溫達突然停轉，然後於4月8日消散。雖然它曾經是一場極其強烈的氣旋，但導致其惡化的因素也避免了重大損失。風暴的降雨量達到峰值205毫米（8.1英寸）。報告了輕微的結構損壞，僅記錄到局部洪水。在使用之後，格溫達這個名字在本風季結束時被除名。
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Severe Tropical Cyclone Gwenda is tied with Cyclone Inigo as the most intense Australian tropical cyclone on record (with the possible exception of Cyclone Mahina), with a barometric pressure of 900 hPa (mbar) and was the most intense storm worldwide in 1999. Forming out of a tropical disturbance over the Arafura Sea on 2 April 1999, the precursor to Gwenda tracked slowly westward and gradually became more organised. On 4 April, the system developed into a Category 1 cyclone and was named Gwenda. It began to undergo explosive intensification the following day, and in a 30-hour span ending early on 7 April, the storm's maximum 10-minute sustained wind speed increased from 75 km/h (45 mph) to 225 km/h (140 mph) and its barometric pressure decreased to 900 hPa (mbar). The Joint Typhoon Warnin
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Cyclone Gwenda
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Cyclone Gwenda
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气旋格温达
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Severe Tropical Cyclone Gwenda
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25606529
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1118243069
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130
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Aus
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1999-04-08
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1998
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Record low in Australian region; tied with Inigo
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Satellite image of a powerful cyclone near the coast of Western Australia. The storm is relatively small but very mature, with a condensed area of deep thunderstorms and a well-defined, clear eye
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Minimal
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2009-11-12
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2010-03-01
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None reported
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1999-04-02
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Gwenda_1999-04-06_0425Z.png
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Severe Tropical Cyclone Gwenda near its record-tying peak intensity
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900
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cyclone
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1999
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120
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160
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Severe Tropical Cyclone Gwenda is tied with Cyclone Inigo as the most intense Australian tropical cyclone on record (with the possible exception of Cyclone Mahina), with a barometric pressure of 900 hPa (mbar) and was the most intense storm worldwide in 1999. Forming out of a tropical disturbance over the Arafura Sea on 2 April 1999, the precursor to Gwenda tracked slowly westward and gradually became more organised. On 4 April, the system developed into a Category 1 cyclone and was named Gwenda. It began to undergo explosive intensification the following day, and in a 30-hour span ending early on 7 April, the storm's maximum 10-minute sustained wind speed increased from 75 km/h (45 mph) to 225 km/h (140 mph) and its barometric pressure decreased to 900 hPa (mbar). The Joint Typhoon Warning Center reported that the storm had peaked as a high-end Category 4 equivalent on the Saffir–Simpson hurricane scale. Increasing wind shear and an acceleration in forward speed caused Gwenda to quickly weaken. Less than 18 hours after peaking, the storm made landfall roughly 45 km (28 mi) east of Port Hedland, Western Australia with winds of 100 km/h (60 mph). After moving ashore, Gwenda abruptly stalled before dissipating on 8 April. Although it was once an extremely intense cyclone, the factors that caused its deterioration also prevented significant damage. Rainfall from the storm peaked at 205 mm (8.1 in). Minor structural damage was reported, and only localised flooding was recorded. Following its usage, the name Gwenda was retired at the end of the season.
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Le cyclone Gwenda est un cyclone qui a frappé l'Australie depuis la mer d'Arafura le 2 avril 1999. Sa pression atmosphérique de 900 hPa est la plus basse relevée dans le pays.
* Portail de l’Australie
* Portail de la météorologie
rdf:langString
強烈熱帶氣旋格温達（英語：Severe Tropical Cyclone Gwenda）是与气旋伊尼戈持平并成为澳洲地区热带气旋季有记录以来气压最强烈的气旋，气旋马希纳可能除外。 氣壓為900毫巴，是1999年世界範圍內最強烈的風暴。1999年4月2日在阿拉弗拉海形成熱帶擾動，格溫達的前兆緩慢向西移動，並逐漸變得更有組織。 4月4日，系統發展為一級熱帶氣旋，並命名為格温達。次日開始爆發性增強，在4月7日早些時候結束的30小時跨度內，風暴的最大10分鐘持續風速從75公里/小時（45英里/小時）上升到225公里/小時（140英里/小時） )，其氣壓下降到900毫巴。聯合颱風警报中心報告說，風暴已經達到薩菲爾-辛普森飓風級別的高端四級熱帶氣旋。 增強的風切變和前進速度的加速導致格温達迅速減弱。在達到峰值後不到18小時，風暴在西澳大利亞黑德蘭港以東約45公里（28英里）處登陸，風速為100公里/小時（60英里/小時）。上岸後，格溫達突然停轉，然後於4月8日消散。雖然它曾經是一場極其強烈的氣旋，但導致其惡化的因素也避免了重大損失。風暴的降雨量達到峰值205毫米（8.1英寸）。報告了輕微的結構損壞，僅記錄到局部洪水。在使用之後，格溫達這個名字在本風季結束時被除名。
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17035
