Overall Green alert Tropical Cyclone for NALGAE-22
in China, Philippines

Impact

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

Meteorological source GFS
Exposed countries Japan, Taiwan, China, Philippines
Exposed population No people in Category 1 or higher
Maximum wind speed 101 km/h
Maximum storm surge 1.3 m (01 Nov 16:45 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
GFS Current 101 km/h 1.3 m 158 mm 0.5
GFS Overall 126 km/h 1.3 m 716 mm 0.5

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

Wind

126 km/h

Up to 8.4 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 30 Oct 2022 00:00 UTC
CategoryCountryPopulation 
Tropical StormJapan, Taiwan, China, Philippines8,419,994
+
Japan83,188 
Taiwan5,131,531 
China322,993 
Philippines2,882,280 

See TC classification SSHS


Wind Impact Timeline

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


Alert 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 27 Oct 2022 00:00 86 - - - - - - -
GREEN 2 27 Oct 2022 06:00 94 - - - - - - -
GREEN 3 27 Oct 2022 12:00 108 - - - - - - -
GREEN 4 27 Oct 2022 18:00 108 - - - - - - -
GREEN 5 28 Oct 2022 00:00 108 - - - - - - -
GREEN 6 28 Oct 2022 06:00 90 -
- - - - - China, Taiwan
GREEN 7 28 Oct 2022 12:00 108 -
- - - - - China, Taiwan, Philippines
GREEN 8 28 Oct 2022 18:00 97 -
- - - - - China, Taiwan, Philippines
GREEN 9 29 Oct 2022 00:00 90 -
- - - - - Taiwan, Philippines
GREEN 10 29 Oct 2022 06:00 83 -
- - - - - China, Taiwan, Philippines
GREEN 11 29 Oct 2022 12:00 86 -
- - - - - China, Taiwan, Philippines
GREEN 12 29 Oct 2022 18:00 90 -
- - - - - China, Taiwan, Philippines
GREEN 13 30 Oct 2022 00:00 137 -
- - - - - Japan, Taiwan, China, Philippines
Download:





Impact estimation for the next 72h




Rain exposed population - AoIs

Estimations based on the bulletin of 30 Oct 2022 00:00 UTC
LevelCountryPopulation 
250-500 mmJapan, Taiwan134,096
+
Japan52,847 
Taiwan81,248 
100-250 mmJapan, Taiwan, Philippines, Malaysia, Brunei, Indonesia4,450,070
+
Japan1,159,842 
Taiwan1,061,692 
Philippines336,802 
Malaysia1,689,197 
Brunei176,240 
Indonesia26,294 
50-100 mmJapan, China, Taiwan, Philippines, Palau, Malaysia, Brunei, Indonesia39,971,735
+
Japan1,469,358 
China12,619,728 
Taiwan7,344,587 
Philippines7,531,295 
Malaysia10,339,060 
Palau6,081 
Brunei246,845 
Indonesia414,777 

Rain Impact Timeline

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


Alert Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 27 Oct 2022 00:00 174 - - - - - - -
Blue 2 27 Oct 2022 06:00 390 - - - - - - -
Blue 3 27 Oct 2022 12:00 345 -
- - - - - Philippines
Blue 4 27 Oct 2022 18:00 216 530 thousand
- - - - Philippines
Blue 5 28 Oct 2022 00:00 231 2 million
- - - - Philippines
Blue 6 28 Oct 2022 06:00 359 270 thousand
- - - Philippines
Blue 7 28 Oct 2022 12:00 153 470 thousand
- - - - Philippines
Blue 8 28 Oct 2022 18:00 133 990 thousand
- - - - Philippines
Blue 9 29 Oct 2022 00:00 207 12.5 million
- - - - Philippines
Blue 10 29 Oct 2022 06:00 125 1.4 million
- - - - Philippines
Blue 11 29 Oct 2022 12:00 211 2.5 million
- - - - Philippines
Blue 12 29 Oct 2022 18:00 151 -
- - - - - Philippines
Blue 13 30 Oct 2022 00:00 642 4.6 million
- - - Japan, China, Taiwan, Philippines, Malaysia, Palau, Brunei, Indonesia




Impact estimation for the next 72h

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

1.3 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 30 Oct 2022 00:00 UTC