Overall Green alert Tropical Cyclone for SONCA-17
in Viet Nam, Laos, Thailand

Event summary

Tropical Cyclone SONCA-17 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1000373
Name SONCA-17
From - To 21 Jul - 25 Jul
Exposed countries Viet Nam, Laos, Thailand
Exposed population No people in Category 1 or higher
Maximum wind speed 102 km/h Tropical storm
Maximum storm surge n.a.
Vulnerability High (Vietnam)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS JTWC 74 km/h n.a. n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 95 km/h 0.5 m n.a. 0.5
GFS n.a n.a. n.a. n.a.
ECMWF n.a 0.4 m n.a. 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2024. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Articles: 155 | About casualties: 31 | Last hour: 0

Tropical storm Sonca causes damage across central regionThu, 27 Jul 2017 05:34:00 +0200.

Tropical storm Sonca, the fourth to strike the East Sea and third to hit Vietnam this year, has led to floods and extensive damage to agriculture, infrastructure and houses in central region. After heavy rains hit central provinces from Tha
...(more)
Subtropical highs causing heat wave in southern ChinaThu, 27 Jul 2017 04:19:00 +0200.

Subtropical highs in the west Pacific have been causing a heat wave in southern China since early July, and it is expected to linger to up to seven more days, a meteorology expert said. Temperatures in 97 cities and counties across China ha
...(more)
Subtropical highs causing heat wave in southern ChinaThu, 27 Jul 2017 03:20:00 +0200.

Subtropical highs in the west Pacific have been causing a heat wave in southern China since early July, and it is expected to linger to up to seven more days, a meteorology expert said. Temperatures in 97 cities and counties across China ha
...(more)
Tropical storm Sonca causes damage across central regionWed, 26 Jul 2017 12:53:00 +0200.

Hanoi (VNA) - Tropical storm Sonca, the fourth to strike the East Sea and third to hit Vietnam this year, has led to floods and extensive damage to agriculture, infrastructure and houses in central region. After heavy rains hit central pro
...(more)

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (38), (2), DesInventar (1), WMO (1), INFORM (2),