Overall Green alert Tropical Cyclone for SONGDA-22


Tropical Cyclone SONGDA-22 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 56 km/h
Maximum storm surge n.a.
Vulnerability --
Landfall between
30 Jul 2022 12:00 - 31 Jul 2022 00:00

in China


GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.
  Wind Storm surge Rainfall GDACS score
Current 56 km/h n.a. n.a. 0.5
Overall 56 km/h 0.0 m n.a. 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Green 1 29 Jul 2022 00:00 56 No people No people

Bulletin Timeline

Alert Date (UTC) Category
Max winds
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
1 29 Jul 2022 00:00 Tropical depression 56 no people no people 28, 133.8
1 29 Jul 2022 12:00 Tropical depression 56 no people no people 29.7, 130.3
1 30 Jul 2022 00:00 Tropical depression 56 no people no people 30.9, 126.5
1 30 Jul 2022 12:00 Tropical depression 46 no people no people 31.3, 123.7
1 31 Jul 2022 00:00 Tropical depression 37 no people no people 31.8, 121.1 China
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.

Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.


Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.



The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.