2010 Typhoons in the Philippines

We usually do not publish storm reports below the strength of a typhoon category 1. This tropical depression however merits to be reported because it is extremely rare that such depressions cross over Mindanao.

On April 24, an area of low pressure had been formed about 140 km (85 mi) to the west of Palau Island. Early of April 26, the disturbance rapidly strengthen again and was starting to be enhanced by a Tropical Upper Tropospheric Trough (TUTT) cell to the northeast of the system, whilst the JMA upgraded it into a tropical depression. Later that day, the depression made landfall over Davao City and Surigao del Sur boundary and crossed central Mindanao. Early on April 27, JMA downgraded the depression into an area of low pressure while it was located in vicinity of Sulu Island. In the next couple of days the low pressure start to move northwest towards South China Sea. On the same time, the low pressure crossed Palawan Island on the afternoon of April 29. On the next day, the low pressure was located about 415 km (260 mi) from Manila. In the evening of that day, the low pressure was last seen in vicinity of the Zambales area and was absorbed by a frontal system.

The depression brought torrential rains to Mindanao causing slight floods in the area. No casualties were reported. When the depression reached Sulu, it was downgraded to a low pressure system. However, it still caused heavy rains in Eastern Visayas, Southern Luzon and Manila.

Typhoon Conson, developed into a tropical depression early on July 11 before rapidly developing into the second tropical storm of the season and named as Conson during the next day. During that afternoon Conson, kept intensifying before the JMA reported that Conson had reached its initial ten-minute peak sustained windspeeds of 110 km/h (75 mph), which made it a severe tropical Storm on the JMA's scale. Later that day, the JTWC reported that Conson had intensified into a typhoon before reporting early on July 13 the next day that it had reached its initial one-minute peak sustained windspeeds of 110 km/h (75 mph) which made it a Category 1 typhoon.
During July 13, Conson started to started to weaken as it interacted with the Philippines before it made landfall near General Nakar, Quezon. Whilst over the Philippines Conson moved towards the east and passed over Manila before moving into the South China Sea early on July 14. During that day Conson weakened further under the influence of high vertical windshear before during the next day the vertical windshear weakened slightly. As a result Conson intensified over the South China Sea and became a typhoon early on July 16, with the JMA reporting ten-minute peak sustained windspeeds of 130 km/h (80 mph), whilst the JTWC reported peak one minute windspeeds of 150 km/h (90 mph) later that day as it passed closed to Hainan Island. After passing close to Hainan island, Conson moved into an area with high levels of vertical windshear and as a result is rapidly weakening before making landfall in Vietnam during July 17.
The big problem in the Philippines had been the wrong forecast of PAGASA. Instead of crossing the Philippines in northern Luzon as predicted, the typhoon passed through the hearth of Manila. The result were casualties and still missing people, millions of death fish in Laguna and 26 hours and more brown out in Luzon.

Early on July 17, the JMA reported that a tropical depression had developed about 220 km (135 mi) to the northeast of Manila, Philippines. Later that day the JTWC reported that the depression had a small low level circulation center with deep convection flaring to the northeast of the center.

Whilst it moved along the southern edge of the subtropical ridge, the Depression made landfall on Aurora province at 0600 UTC, before the JTWC initiated advisories later that morning, as the low level circulation center had consolidated and poleward outflow into the tropical upper tropospheric trough had improved. Late on July 19, PAGASA issued their last advisory on Tropical Storm Caloy as it had moved out of their Area of Responsibility.

Following the system's development, PAGASA stated that rainfall from system could trigger landslides and flooding in Aurora, the Bicol Region, and Quezon. Throughout Aurora, heavy rains triggered flash flooding which destroyed at least one home and stranded hundreds of residents. The Paltic barangay, within Dingalan, became inaccessible to rescuers after the local river topped its banks and washed out nearby slopes.

Late on October 12, the JMA reported that a tropical depression had formed to the west of Guam. During October 13, the JTWC designated the tropical depression as 15W. Later that day, the JMA and the JTWC reported that the depression had intensified into a tropical storm and named it as Megi. On October 15, The JTWC reported that the storm had intensified into a category 2 typhoon, but the JMA were only monitoring the system as a Severe Tropical Storm. Later that day, the JMA reported that the storm strengthened into a typhoon. Early on October 16 the system entered the Philippine Area of Responsibility and the PAGASA began to issue advisories on Megi, giving it the local designation of "Juan".

That same day, Megi continued to intensify and was upgraded by the JTWC to a category 3 typhoon. Early on October 17, the JTWC reported that Megi had intensified into a category 5 super typhoon– the first super typhoon of the season and the first since Nida in November 2009. In the night of October 17, the intensity of Megi strengthened to 895 hPa (mbar), making Megi the strongest typhoon since Typhoon Yuri in 1991, and the first Pacific typhoon to reach lower than 900 hPa (mbar) in the 21st century and the first to do so anywhere in the world since Hurricane Wilma in the Atlantic in 2005. It was also the first tropical cyclone in the 21st century to have one-minute sustained winds of 190-mph, and the first since Hurricane Allen in the Atlantic in 1980.

In the morning of October 18, Megi continued to intensify to 885 hPa (mbar), making Megi the ninth strongest tropical storm overall. It made landfall at that intensity, becoming one of the most intense landfalling storms ever recorded anywhere in the world. Over Luzon, the typhoon weakened. It reached the South China Sea and then turned to the north. Megi reintensified but high wind shear started to take its toll on the typhoon, but its eye diameter significantly increased. On October 22, Typhoon Megi weakened to a category two, later a category one by colder SST. Megi lost its eyewall structure and weakened to a severe tropical storm in Taiwan Strait, made landfall in Zhangpu County, Zhangzhou, Fujian province, China, and later weakened to a tropical storm on October 23. Early on October 24, it further dissipated to a tropical depression before dissipating completely, several hours later.