![]() Severe Tropical Storm Ma-on at peak intensity on August 24 | |
Meteorological history | |
---|---|
Formed | August 20,2022 |
Dissipated | August 26,2022 |
Severe tropical storm | |
10-minute sustained (JMA) | |
Highest winds | 100 km/h (65 mph) |
Lowest pressure | 980 hPa (mbar);28.94 inHg |
Category 1-equivalent typhoon | |
1-minute sustained (SSHWS/JTWC) | |
Highest winds | 120 km/h (75 mph) |
Lowest pressure | 984 hPa (mbar);29.06 inHg |
Overall effects | |
Fatalities | 7 |
Damage | $66.6 million (2022 USD) |
Areas affected | Philippines,China,Vietnam,Laos |
IBTrACS | |
Part of the 2022 Pacific typhoon season |
Severe Tropical Storm Ma-on,known in the Philippines as Severe Tropical Storm Florita,was a tropical cyclone that impacted the Philippines in late August 2022. The ninth named storm of the 2022 Pacific typhoon season,Ma-on originated as a disturbance over in the Pacific Ocean on August 18,and was upgraded to a tropical depression during the next day. The depression strengthened into a tropical storm receiving the name Ma-on,and became a severe tropical storm late on August 23 before making landfall in the Philippines. It would later make landfall in China and Vietnam on August 25. Ma-on weakened back to a tropical depression and due to unfavorable conditions it dissipated on August 26,2022.
The storm caused moderate damage in the Philippines,China and Vietnam.
A disturbance that would eventually become Severe Tropical Storm Ma-on was first noted by the Joint Typhoon Warning Center (JTWC) on August 18, while it was located about 910 km (565 mi) southeast of Taipei, Taiwan. [1] Deep convection associated with the disturbance strong low level persisted. [2] Favourable environment for further development, being offset by warm sea surface temperatures of around 29–30 °C (84–86 °F). [3] During August 19, the Japan Meteorological Agency began tracking a low pressure in the Philippine Sea. [4] The system moved westwards, eventually developing into a tropical depression on August 20. [5] The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) began tracking the system, giving the local name Florita on August 21. [6]
On the same day, the JTWC issued a Tropical Cyclone Formation Alert (TCFA) for the system. [7] Shortly afterwards, the JTWC designated the system as 10W. [8] Satellite imagery indicated that it had formative bands with a low-level circulation center (LLCC). [9] By August 22, the JMA classified the system as a tropical storm and named the storm Ma-on. [10] Later on, the JTWC and PAGASA also upgraded the system into a tropical storm. [11] [12] Ma-on began to moved slowly, under the influence of a subtropical ridge off the coast of Luzon. [13] At 18:00 UTC, the JMA upgraded Ma-on to severe tropical storm status. [14] The PAGASA reported that the system intensified into a severe tropical storm on August 23. [15]
At that time, multispectral animated satellite imagery revealed a symmetrical central convection. [16] Ma-on made landfall over Maconacon in the province of Isabela around 10:30 (PHT) (02:30 UTC). [17] The system continued consolidating which allowed it to organized a small microwave eye. [18] Traversing the Luzon Islands before it emerged over the coastal of Ilocos Norte. [19] [20] [21] Ma-on exited the Philippine Area of Responsibility at 05:00 PHT August 24 (21:00 UTC August 23). [22] Upper-Level near the storm's center struggled to organize due to moderate to strong east-northeasterly shear. [23] An Advanced Scatterometer (ASCAT) pass indicated that the storm was along the southern of the system. [24] Ma-on moved west-northwest and subsequently made second landfall just southwest of Yangjiang, China on August 25. [25] Shortly after the landfall, the JTWC discontinued warnings on the system. [25] Ma-on later become unfavorable of its intensity. [26] As a result, the JMA downgraded the system to a tropical storm at 06:00 UTC that day. [27] Ma-on moved west to the Gulf of Tonkin, and made third and final landfall in Móng Cái City, Quảng Ninh Province in Vietnam on 13:00 UTC. [28] After that, JMA declared that Ma-on weakened to a tropical depression, until it was last noted in Northern Vietnam on August 26. [29] [30]
Ahead of the storm's arrival, PAGASA placed the provinces of Aurora, Isabela and Cagayan under Tropical Cyclone Wind Signal (TCWS) #1 on August 21, 2022. [31] During the next day, PAGASA raised TCWS #2 [12] before TCWS #3 was ultimately issued and extended to include other parts of Luzon on August 23. [15] President Bongbong Marcos suspended classes and government work in some areas in Luzon on August 23 and 24 just one day after the opening of full face-to-face classes, two years since the COVID-19 pandemic in the Philippines prompted schools to shift to distance or online learning. [32] [33]
The Department of Social Welfare and Development (DSWD) said that 16,654 food packs had been prepared. [34] In Isabela, heavy rains brought by the storm caused four overflow bridges to be impassable. [35] In Cagayan, 10,608 hectares of rice and corn farms were destroyed. [36] In Pampanga, 39 barangays were flooded. [37] In Cordillera, 1,882 search and rescue cop teams were placed on standby. [38]
Power outages were reported in Northern Luzon. [39] Flights from Manila to Bicol were cancelled due to inclement weather. [40] The Philippine Army conducted disaster response operations. [41] The Philippine Coast Guard (PCG) deployed 11 aluminum boats in Marikina City. [42] According to the BJMP, 740 inmates were evacuated. [43] The Metropolitan Manila Development Authority temporarily suspended their number coding scheme. [44]
The NDRRMC reported 17,510 affected people, 4,330 were displaced. [45] At least 4 people were dead, [46] and another 4 were injured. [45] Infrastructure damage was estimated to be ₱571 million (US$10.4 million), while agricultural damage was estimated to be ₱1.86 billion (US$33.6 million). [45] [47]
In Vietnam, Ma-on caused multiple flooded and uprooted trees. [48] 135,000 were planned to evacuate. [49] Ma-on brought heavy rains; Dong Trieu received 76.8 mm (3.02 in) and at least 164 mm (6.5 in) in Dong Son. [50] [51] In total 321 households were flooded, with 38 households were deeply flooded in Uông Bí. [50] So far, a total of 3 people were reported killed by the storm. [52]
Total damage in Tiên Yên District is 28 billion dong (US$1.18 million), [53] while in Uông Bí is 11.7 billion dong (US$494,000). [54] In Lang Son total damaged reached 10 billion dong (US$422,000), [55] and in Bac Kan the damage is 4.25 billion dong (US$180,000). [56]
In Laos, flash floods exacerbated by Ma-on. [57] Villages along the Nam Ko river have been damaged. [58] Thousands of people are reportedly affected. [59] In China total damage by Ma-on was estimated at 150 million yuan (US$20.8 million). [60]
After the season, the Typhoon Committee announced that the name Ma-on, along with five others will be removed from the naming lists. [61] In the spring of 2024, the name was replaced with Tsing-ma for future seasons. [62]
After the season, PAGASA announced that the name Florita will be removed from their naming lists after this typhoon caused ₱1 billion in damage on its onslaught in the country. On May 5, 2023, the PAGASA chose the name Francisco as its replacement for the 2026 season. [63]