Overall Green alert Tropical Cyclone for NALGAE-22
in China, Philippines
28 Oct 2022 18 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

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

Meteorological source HWRF
Exposed countries Taiwan, China, Philippines
Exposed population No people in Category 1 or higher
Maximum wind speed 97 km/h
Maximum storm surge 1.3 m (31 Oct 04:15 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 97 km/h 1.3 m 385 mm 0.5
HWRF Overall 126 km/h 1.3 m 778 mm 0.5

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

TOP

Wind

126 km/h

Up to 19.6 million can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 28 Oct 2022 18:00 UTC
CategoryCountryPopulation 
Tropical StormTaiwan, China, Philippines19,619,054
+
Taiwan104,694 
China67,859 
Philippines19,446,500 

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 27 Oct 2022 00:00 90 - - - - - - -
GREEN 2 27 Oct 2022 06:00 94 - - - - - - -
GREEN 3 27 Oct 2022 12:00 112 - - - - - - -
GREEN 4 27 Oct 2022 18:00 97 - - - - - - -
GREEN 5 28 Oct 2022 00:00 108 -
- - - - - Philippines
GREEN 6 28 Oct 2022 06:00 97 -
- - - - - Philippines
GREEN 7 28 Oct 2022 12:00 90 -
- - - - - Philippines
GREEN 8 28 Oct 2022 18:00 108 -
- - - - - Taiwan, China, Philippines
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 28 Oct 2022 18:00 UTC
LevelCountryPopulation 
more than 1000 mmPhilippines16,527 
750-1000 mmPhilippines93,866 
500-750 mmPhilippines773,816 
250-500 mmPhilippines11,589,599 
100-250 mmPhilippines34,551,999 
50-100 mmTaiwan, Philippines7,985,204
+
Taiwan79,624 
Philippines7,905,580 

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 27 Oct 2022 00:00 334 - - - - - - -
Blue 2 27 Oct 2022 06:00 429 - - - - - - -
Blue 3 27 Oct 2022 12:00 510 - - - - - - -
Blue 4 27 Oct 2022 18:00 363 120 thousand
- - - - Philippines
Blue 5 28 Oct 2022 00:00 288 560 thousand
- - - Philippines
Blue 6 28 Oct 2022 06:00 214 80 thousand
- - - - Philippines
Blue 7 28 Oct 2022 12:00 217 300 thousand
- - - - Philippines
Blue 8 28 Oct 2022 18:00 1350 47 million
Taiwan, Philippines




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

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 28 Oct 2022 18:00 UTC