By: Weatherguy Adonis
Massive Flood, Hail, Severe Weather Plague China’s Northwestern Region
Iloilo City, Philippines, 13 May 2012, (0530Z)–China has been exceptionally hard-hit by a surging severe weather for the last two (2) weeks in a row. Even far down South in Hong Kong, they got severe weather with some of the most intense thunderstorm activity in the region as a series of developing area of “Low Pressure,” emanating from Northernmost regions of the country has barrels through the region. And yet again on Friday, 11 May 2012, another wave of severe weather moved into the region, spawned heavy torrents of falls in the mountainous regions of Northwestern China, where storms are all heading almost continuously. Ridge of High pushes these systems Southeastwards as they exit the arid regions of the Gobi Desert in the Southwestern Inner Mongolian border. The deadly mix of super-heated atmosphere off the desert wind collide with the cooler mass of air from the West, giving birth to a frantic season of rain-bearing thunderstorms that has unleashed severe weather.
From across China’s Northeastern mountainous counties of Gansu Province, heavy amounts of precipitation has fallen into the sometime drier regions especially in the city of Dingzi, with an estimated population of 450,000 residents. According to China’s state news agency Xinhua:
“the death toll in Friday’s flashfloods in Minxian, Gansu Province has risen to forty (40) people and eighteen (18) others remained missing as of 3 p.m. on Saturday after hail and torrential rains battered a mountainous county in Northwest China, authorities said late Saturday.
The storms had affected 358,000 people in Minxian county, Gansu province, forcing the evacuation of nearly 30,000 local residents. Another 87 people had been hospitalized.
Roads were blocked, houses collapsed, farmland destroyed, power supply and telecommunications service disrupted by the extreme weather, according to Xu Guangyao, director of the Minxian county civil affairs bureau.
A total of 950 tents, 1,270 beds and a great deal of relief supplies had been sent to the disaster-stricken area, but the local residents were still in need of relief supplies, he said.
The stormy weather lasted just from 5 to 6 p.m. Thursday, but wreaked havoc in all of the county’s 18 townships.
Minxian is a mountainous county in the city of Dingxi with a population of 450,000. It is located 150 km from Zhouqu county, where a rain-triggered mudslide killed more than 1,500 people in August 2010.”
Another wave of “Low Pressure” systems are now aiming towards Central China heading towards the Guangzhou region, and possibly crossing Eastern China and expected to spill into the Yellow Sea later Sunday, 13 May 2012. The developing storm has been observed to become a strong “Frontal system” that’s forecast to generate severe weather across Southern China, extending towards North of Taiwan and is expected to hit the Western coast of Jeju Island sometime Monday workweek. The new system will be affecting the Southern Japanese Islands of Ryukus and Okinawa.
Tropical Disturbance 90W Remains Disorganized
Meantime, “Tropical Disturbance 90W,” has been slow moving for the past 36 hrs, and has been embedded with an active trough of the Intertropical Convergence Zone (ITCZ) along the Sulu Sea and the West Philippine Sea, just in the crossroads of Mindoro and Northern Palawan Islands. The combination of warm sea surface temperatures (SSTs), reaching to a high of 35C, has been especially providing enough moisture along the front, spawning more heavy thunderstorm activity in much of the Philippine’s Western coasts. Mindanao is also experiencing heavy periods of thunderstorms especially in the late afternoon, bringing the temperatures down to 32-33C–a respite from the April Sun.
These weather system should compliment some light showers and thunderstorm activity across Northern Luzon, where the persisting “Stationary front,” and an approaching “Frontal system,” are both ways about to provide a favourable precipitation in the Northernmost regions of Bashi and Babuyan Channel in Extreme Northern Luzon within the next 12-24 hrs, so keep those umbrellas handy at all times and please keep it here at Westernpacificweather.com for more tropical updates from across the region, and also, if you’re interested to join in our discussion forum at Westernpacificforecast.com, just ask one of the authors here for the most up-to-date and well-informed netizens in the region.
This has been your Weatherguy, hailing from the Philippines! =)
With data from NRL Mry, RAMMB-CIRA, JMA, HKO, Xinhua and Westernpacificweather.com
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