Tropical storm (JMA scale) | |
---|---|
Tropical storm (SSHWS) | |
Formed | November 6 |
Dissipated | November 10 |
Highest winds |
10-minute sustained: 85 km/h (50 mph) 1-minute sustained: 85 km/h (50 mph) |
Lowest pressure | 992 hPa ( mbar); 29.29 inHg |
Fatalities | 3 |
Damage | $34.8 million (2020 USD) |
Areas affected | Philippines, Vietnam |
Part of the 2020 Pacific typhoon season |
Tropical Storm Etau, known in the Philippines as Tropical Storm Tonyo, was a tropical cyclone that affected the Philippines and Vietnam in November 2020. The twenty-eighth tropical depression and twenty-first named storm of the 2020 Pacific typhoon season, it was one of many cyclones that contributed to a devastating series of floods in Central Vietnam.
On November 6 at 06:00 UTC, the Joint Typhoon Warning Center (JTWC) began monitoring an area of convection northeast of Palau, noting a broad low-level circulation and favorable conditions surrounding the system. [1] Later that day at 12:00 UTC, the Japan Meteorological Agency (JMA) assessed that the system became a tropical depression. [2] On the next day at 12:00 UTC, the PAGASA upgraded the system to a tropical depression, assigning it the local name Tonyo. [3] The JTWC issued a Tropical Cyclone Formation Alert for Tonyo three hours later despite the presence of 20–25-knot (35–45 km/h; 25–30 mph) wind shear. [4] Tonyo made landfall on Ticao Island at 13:00 UTC, Torrijos, Marinduque at 20:30 UTC, and at San Juan, Batangas at 00:00 UTC on November 8. [5] At 12:00 UTC, the JTWC upgraded Tonyo to a tropical depression, designating it as 24W. [6] The system began consolidating, [7] and at 18:00 UTC, both the JMA and the PAGASA upgraded it to a tropical storm, with the JMA assigning it the international name Etau. [2] [8] Etau then left the Philippine Area of Responsibility at 20:00 UTC. [8]
On November 9 at 00:00 UTC, the JTWC upgraded Etau to a tropical storm. [6] Six hours later, the JMA assessed that Etau had peaked in intensity with ten-minute sustained winds of 85 km/h (50 mph) and a minimum central pressure of 992 hPa (29.29 inHg). [2]
Floods occurred in Boac, Marinduque on November 7. 199 passengers and 87 ships were stranded in Oriental Mindoro. [9]
Etau killed three people in Vietnam. [10]