Overall Green alert Tropical Cyclone for HILDA-21
Off-shore

Impact

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

Meteorological source GFS
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 151 km/h
Maximum storm surge 0.3 m (03 Aug 00:45 UTC)
Vulnerability --

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 151 km/h 0.3 m 192 mm 0.5
GFS Overall 151 km/h 0.4 m 656 mm 0.5

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



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 01 Aug 2021 18:00 UTC

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 30 Jul 2021 18:00 101 - - - - - - -
GREEN 2 31 Jul 2021 00:00 104 - - - - - - -
GREEN 3 31 Jul 2021 06:00 94 - - - - - - -
GREEN 4 31 Jul 2021 12:00 94 - - - - - - -
GREEN 5 31 Jul 2021 18:00 119 - - - - - - -
GREEN 6 01 Aug 2021 00:00 115 - - - - - - -
GREEN 7 01 Aug 2021 06:00 122 - - - - - - -
GREEN 8 01 Aug 2021 12:00 133 - - - - - - -
GREEN 9 01 Aug 2021 18:00 166 - - - - - - -
Download:





Impact estimation for the next 72h

Rainfall

656 mm

Up to 2 thousand can be affected by rain higher than 100mm (see SSHS)





Rain exposed population - AoIs

Estimations based on the bulletin of 01 Aug 2021 18:00 UTC
LevelCountryPopulation 
100-250 mmMexico2,039 
50-100 mmMexico244,076 

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 30 Jul 2021 18:00 204 - - - - - - -
Blue 2 31 Jul 2021 00:00 185 - - - - - - -
Blue 3 31 Jul 2021 06:00 106 -
- - - - - Mexico
Blue 4 31 Jul 2021 12:00 96 - - - - - - -
Blue 5 31 Jul 2021 18:00 157 - - - - - - -
Blue 6 01 Aug 2021 00:00 173 -
- - - - - Mexico
Blue 7 01 Aug 2021 06:00 203 - - - - - - -
Blue 8 01 Aug 2021 12:00 172 - - - - - - -
Blue 9 01 Aug 2021 18:00 473 2 thousand
- - - - Mexico




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

0.3 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 01 Aug 2021 18:00 UTC