Overall Red alert Tropical Cyclone for CHANTHU-21
in China, Philippines
06 Sep 2021 12 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone CHANTHU-21 can have a high humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source HWRF
Exposed countries South Korea, China, Japan
Exposed population No people in Category 1 or higher
Maximum wind speed 0 km/h
Maximum storm surge 1.9 m (13 Sep 13:15 UTC)
Vulnerability Medium (China)

GDACS Score

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
HWRF Current 0 km/h 0.0 m 0 mm 0.5
HWRF Overall 274 km/h 1.9 m 2082 mm 1.5

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

TOP

Wind

274 km/h

Up to 10 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 06 Sep 2021 12:00 UTC
CategoryCountryPopulation 
Tropical StormSouth Korea, China, Japan10,007,697
+
South Korea582,228 
China9,425,460 
Japan08 

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Winds (km/h) Pop in Cat. 1 or higher TS Cat. 1 Cat. 2 Cat. 3 Cat. 4 Cat. 5 Countries
GREEN 1 06 Sep 2021 06:00 58 - - - - - - -
GREEN 2 06 Sep 2021 12:00 0 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 06 Sep 2021 12:00 UTC
LevelCountryPopulation 
more than 1000 mmSouth Korea84,404 
750-1000 mmSouth Korea19,233 
500-750 mmSouth Korea41,736 
250-500 mmSouth Korea, China400,377
+
South Korea310,614 
China89,763 
100-250 mmSouth Korea, China1,203,321
+
South Korea226,321 
China976,999 
50-100 mmSouth Korea, China8,270,886
+
South Korea637,099 
China7,633,786 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 06 Sep 2021 06:00 152 - - - - - - -
Blue 2 06 Sep 2021 12:00 0 - - - - - - -




Impact estimation for the next 72h
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StormSurge

The calculations have been performed using NAMIDANCE computer code, from Middle East Technical University.
reference: Zaytsev, Andrey; Kurkin, Andrey; Pelinovsky, Efim; Yalciner, Ahmet C. - NUMERICAL TSUNAMI MODEL NAMI-DANCE. - Science of Tsunami Hazards . Nov2019, Vol. 38 Issue 4, p151-168. 18p.
Doaj

1.9 m

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 06 Sep 2021 12:00 UTC