Overall Orange alert Tropical Cyclone for KOMPASU-21
in Viet Nam, Laos, China, Philippines
11 Oct 2021 06 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 GFS
Exposed countries China, Taiwan, Japan, Hong Kong, Vietnam, Philippines, Paracel Islands
Exposed population No people in Category 1 or higher
Maximum wind speed 97 km/h
Maximum storm surge 2.2 m (13 Oct 10:00 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
GFS Current 97 km/h 2.2 m 198 mm 0.5
GFS Overall 119 km/h 2.4 m 688 mm 0.5

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

TOP

Wind

119 km/h

Up to 18.2 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 11 Oct 2021 06:00 UTC
CategoryCountryPopulation 
Tropical StormChina, Taiwan, Japan, Hong Kong, Vietnam, Philippines, Paracel Islands18,192,212
+
China6,834,585 
Taiwan8,860,199 
Japan106,560 
Hong Kong5,549 
Vietnam33,382 
Philippines2,351,770 
Paracel Islands164 

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 10 Oct 2021 06:00 97 -
- - - - - Taiwan
GREEN 2 10 Oct 2021 12:00 104 -
- - - - - Taiwan, Philippines
GREEN 3 10 Oct 2021 18:00 119 -
- - - - - China, Taiwan, Japan, Philippines
GREEN 4 11 Oct 2021 00:00 101 -
- - - - - Taiwan, China, Japan, Philippines
GREEN 5 11 Oct 2021 06:00 112 -
- - - - - China, Taiwan, Japan, Hong Kong, Vietnam, Philippines, Paracel Islands
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 11 Oct 2021 06:00 UTC
LevelCountryPopulation 
500-750 mmTaiwan, Philippines, Thailand634,012
+
Taiwan456,346 
Philippines177,013 
Thailand652 
250-500 mmTaiwan, Philippines, Myanmar, Thailand, Cambodia2,659,646
+
Taiwan162,149 
Myanmar703,001 
Philippines1,118,029 
Thailand632,975 
Cambodia43,490 
100-250 mmChina, Taiwan, Japan, Philippines, Vietnam, Laos, Paracel Islands, Thailand, Myanmar, Cambodia, India21,949,927
+
China7,622,288 
Japan27,753 
Taiwan638,215 
Vietnam3,885,484 
Myanmar335,404 
Philippines5,298,239 
Laos51 
Thailand3,552,268 
Paracel Islands285 
Cambodia560,758 
India29,178 
50-100 mmChina, Japan, Taiwan, Hong Kong, Macao, Vietnam, Myanmar, Philippines, Laos, Thailand, Paracel Islands, Cambodia, India136,345,593
+
China24,436,238 
Japan1,352,606 
Taiwan5,509,529 
Hong Kong3,604,319 
Macao579,652 
Vietnam42,096,589 
Myanmar1,525,779 
Philippines30,324,502 
Laos297,359 
Thailand21,893,651 
Paracel Islands51 
Cambodia4,436,306 
India289,006 

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 10 Oct 2021 06:00 92 -
- - - - - Vietnam, China
Blue 2 10 Oct 2021 12:00 134 -
- - - - - Vietnam
Blue 3 10 Oct 2021 18:00 156 270 thousand
- - - - China, Vietnam, Philippines, Laos
Blue 4 11 Oct 2021 00:00 138 430 thousand
- - - - Taiwan, Vietnam, Philippines, Laos
Blue 5 11 Oct 2021 06:00 684 25.2 million
- - China, Japan, Taiwan, Hong Kong, Macao, Vietnam, Myanmar, 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

2.2 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 11 Oct 2021 06:00 UTC