Overall Orange alert Tropical Cyclone for KOMPASU-21
in Viet Nam, Laos, China, Philippines
10 Oct 2021 12 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

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

Meteorological source ECMWF
Exposed countries China, Taiwan, Japan, Hong Kong, Vietnam, Philippines
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge 2.0 m (13 Oct 06:45 UTC)
Vulnerability High (Vietnam)

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
ECMWF Current 83 km/h 2.0 m 165 mm 0.5
ECMWF Overall 101 km/h 2.1 m 790 mm 0.5

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

TOP

Wind

101 km/h

Up to 5.5 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 10 Oct 2021 12:00 UTC
CategoryCountryPopulation 
Tropical StormChina, Taiwan, Japan, Hong Kong, Vietnam, Philippines5,482,823
+
China4,279,320 
Taiwan950,633 
Japan15,655 
Hong Kong6,533 
Vietnam6,407 
Philippines224,273 

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 09 Oct 2021 12:00 94 -
- - - - - China, Vietnam
GREEN 2 10 Oct 2021 00:00 86 -
- - - - - Vietnam
GREEN 3 10 Oct 2021 12:00 104 -
- - - - - China, Taiwan, Japan, Hong Kong, Vietnam, Philippines
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 10 Oct 2021 12:00 UTC
LevelCountryPopulation 
500-750 mmTaiwan, Philippines65,247
+
Taiwan51,444 
Philippines13,803 
250-500 mmChina, Taiwan, Philippines, Myanmar2,780,642
+
China244,481 
Taiwan852,053 
Myanmar311 
Philippines1,683,796 
100-250 mmChina, Taiwan, Japan, Vietnam, Philippines, Myanmar, Thailand, Laos, Cambodia58,046,674
+
China27,356,782 
Taiwan1,512,258 
Myanmar736,882 
Japan271 
Vietnam19,038,079 
Philippines7,468,847 
Laos92,153 
Thailand1,485,351 
Cambodia356,047 
50-100 mmChina, Taiwan, Myanmar, Japan, Vietnam, Hong Kong, Macao, Philippines, Laos, Thailand, Paracel Islands, Cambodia, India177,588,602
+
China44,014,272 
Taiwan11,307,620 
Myanmar14,094,249 
Japan53,830 
Vietnam43,694,444 
Hong Kong5,999,961 
Macao579,652 
Philippines37,420,797 
Laos370,977 
Thailand15,871,920 
Paracel Islands336 
Cambodia4,137,044 
India43,495 

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 09 Oct 2021 12:00 399 80 thousand
- - - - China, Vietnam, Macao, Philippines
Blue 2 10 Oct 2021 00:00 166 2.6 million
- - - - China, Vietnam, Philippines
Blue 3 10 Oct 2021 12:00 650 60.9 million
- - China, Taiwan, Myanmar, Japan, Vietnam, Hong Kong, Macao, Philippines, Laos, Thailand, Paracel Islands, Cambodia, India




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

2 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 10 Oct 2021 12:00 UTC