Overall Orange alert Tropical Cyclone for KOMPASU-21
in Viet Nam, Laos, China, Philippines
11 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 101 km/h
Maximum storm surge 2.1 m (13 Oct 08:30 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 101 km/h 2.1 m 790 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 5.4 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 12:00 UTC
CategoryCountryPopulation 
Tropical StormChina, Taiwan, Japan, Hong Kong, Vietnam, Philippines5,429,146
+
China3,691,391 
Taiwan1,052,794 
Japan15,053 
Hong Kong61,342 
Vietnam17,008 
Philippines591,556 

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 83 -
- - - - - China, Taiwan, Philippines
GREEN 4 11 Oct 2021 00:00 86 -
- - - - - China, Taiwan, Japan, Philippines
GREEN 5 11 Oct 2021 12:00 101 -
- - - - - China, Taiwan, Japan, Hong Kong, Vietnam, Philippines
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 11 Oct 2021 12:00 UTC
LevelCountryPopulation 
500-750 mmTaiwan, Philippines549,934
+
Taiwan39,957 
Philippines509,976 
250-500 mmChina, Taiwan, Vietnam, Philippines4,245,514
+
China881,365 
Taiwan730,265 
Vietnam117,342 
Philippines2,516,540 
100-250 mmChina, Taiwan, Japan, Vietnam, Hong Kong, Macao, Philippines, Myanmar, Laos, Thailand, Paracel Islands, Cambodia115,804,628
+
China45,046,876 
Japan53,914 
Taiwan3,955,723 
Myanmar1,704,856 
Vietnam42,244,457 
Hong Kong7,326,481 
Macao579,652 
Philippines13,174,938 
Laos237,987 
Thailand1,111,654 
Paracel Islands116 
Cambodia367,968 
50-100 mmChina, India, Japan, Taiwan, Myanmar, Vietnam, Laos, Philippines, Thailand, Paracel Islands, Cambodia, Micronesia, Palau216,987,254
+
China115,387,676 
India274,641 
Japan506,012 
Taiwan10,272,354 
Myanmar16,407,607 
Vietnam30,242,603 
Philippines24,991,578 
Laos763,386 
Thailand9,752,156 
Paracel Islands219 
Cambodia8,368,619 
Micronesia5,947 
Palau14,451 

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 12:00 165 570 thousand
- - - - China, Taiwan, Vietnam, Philippines, Thailand, Laos
Blue 4 11 Oct 2021 00:00 252 3.7 million
- - - - Taiwan, Vietnam, Philippines, Myanmar, Thailand, Laos
Blue 5 11 Oct 2021 12:00 790 46.2 million
- - China, Japan, Taiwan, India, Myanmar, Vietnam, Hong Kong, Macao, Bangladesh, Philippines, Laos, Thailand, Paracel Islands, Cambodia




Impact estimation for the next 72h
TOP

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

2.1 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

Estimations based on the bulletin of 11 Oct 2021 12:00 UTC
LevelCountryPopulation 
2.0 - 3.0 mChina20,201 
1.0 - 2.0 mChina, Macao849,331
+
China813,253 
Macao36,078 
0.5 - 1.0 mChina, Taiwan, Hong Kong, Macao, Vietnam, Philippines5,483,163
+
China4,473,812 
Taiwan5,362 
Hong Kong276,408 
Macao1,330 
Vietnam721,911 
Philippines4,338 
0.25 - 0.5 mChina, Japan, Taiwan, Hong Kong, Vietnam, Philippines, Myanmar3,424,127
+
China2,410,848 
Japan10,132 
Taiwan14,831 
Hong Kong3,260 
Vietnam513,727 
Philippines469,774 
Myanmar1,551 

Storm Surge Exposed locations

Calculation based on the bulletin of 11 Oct 2021 12:00 UTC