Overall Orange alert Tropical Cyclone for GATI-20
in Somalia

Impact

Tropical Cyclone GATI-20 can have a medium humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source ECMWF
Exposed countries Somalia
Exposed population No people in Category 1 or higher
Maximum wind speed 86 km/h
Maximum storm surge 0.3 m (21 Nov 10:15 UTC)
Vulnerability High (Somalia)

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 86 km/h 0.3 m 170 mm 0.5
ECMWF Overall 86 km/h 0.3 m 387 mm 0.5

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

Wind

86 km/h

Up to Few people can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population

Estimations based on the bulletin of 21 Nov 2020 00:00 UTC
CategoryCountryPopulation 
Tropical StormSomalia748 

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 21 Nov 2020 00:00 86 -
- - - - - Somalia




Impact estimation for the next 72h





Rain exposed population

Estimations based on the bulletin of 21 Nov 2020 00:00 UTC
LevelCountryPopulation 
250-500 mmSomalia5333 
100-250 mmSomalia206537 
50-100 mmYemen, Somalia415005
+
Yemen200077 
Somalia214928 

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 21 Nov 2020 00:00 362 210 thousand
- - - Yemen, Somalia




Impact estimation for the next 72h

StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Deh-Cabo, Somalia. This height is estimated for 21 Nov 2020 10:15 UTC .

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.

Calculation based on the bulletin of 21 Nov 2020 00:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
21 Nov 2020 10:15 Deh-Cabo Somalia  0.3
21 Nov 2020 08:45 Xaafuun Somalia  0.2
21 Nov 2020 08:15 Cadayo Somalia  0.2
21 Nov 2020 06:30 Hurdiyo Somalia  0.2
21 Nov 2020 08:00 Bargaal Somalia  0.2
21 Nov 2020 06:15 Aiesloho Somalia  0.2
21 Nov 2020 03:15 Hen Daier Somalia  0.2
21 Nov 2020 11:45 Ascira Somalia  0.2
21 Nov 2020 10:45 Sala Gon Somalia  0.2
21 Nov 2020 12:00 Rasa Eritrea  0.2
21 Nov 2020 12:00 Badeda Eritrea  0.2
21 Nov 2020 12:00 Diwalu Eritrea  0.1
21 Nov 2020 12:00 Mora Eritrea  0.1
21 Nov 2020 12:00 Horena Eritrea  0.1
21 Nov 2020 12:00 Miida Eritrea  0.1
21 Nov 2020 12:00 Sahli Eritrea  0.1
21 Nov 2020 07:30 Ceelbacduur Somalia  0.1
21 Nov 2020 11:45 Bola Cohuan Somalia  0.1
21 Nov 2020 07:45 Mach Somalia  0.1
21 Nov 2020 02:45 Hobyo Somalia  0.1
21 Nov 2020 02:45 Garahadde Somalia  0.1
21 Nov 2020 03:15 Ceel Dhahanaan Somalia  0.1
21 Nov 2020 07:00 Harag Jid Somalia  0.1
21 Nov 2020 04:15 Tabut Yemen  0.1
21 Nov 2020 04:15 Hayrut Yemen  0.1
21 Nov 2020 04:15 Nishtun Yemen  0.1
21 Nov 2020 07:15 Takhushih Somalia  0.1
21 Nov 2020 07:15 Saylac Somalia  0.1
21 Nov 2020 11:45 Lakabi Oman  0.1
21 Nov 2020 11:45 Qaysad Oman  0.1
21 Nov 2020 07:30 'Ag Somalia  0.1
21 Nov 2020 10:45 Loyado Djibouti  0.1
21 Nov 2020 04:45 Lakba Oman  0.1
21 Nov 2020 04:45 Sawqirah Oman  0.1
21 Nov 2020 07:45 Cal Marthal Somalia  0.1
21 Nov 2020 07:45 Dauli Somalia  0.1
21 Nov 2020 03:30 Gaalacoodday Somalia  0.1
21 Nov 2020 12:00 Midi Yemen  0.1
21 Nov 2020 12:00 Al Kharamilah Yemen  0.1
21 Nov 2020 12:00 Al Madasikah Yemen  0.1
21 Nov 2020 08:30 Boho Somalia  0.1
21 Nov 2020 08:30 Wareegsimo Somalia  0.1
21 Nov 2020 08:30 Bereeda Somalia  0.1
21 Nov 2020 11:45 Eddi Gellei Somalia  0.1
21 Nov 2020 11:45 Bandarbeyla Somalia  0.1
21 Nov 2020 10:30 Al Hudaydah Yemen  0.1
21 Nov 2020 10:30 Jabanah Yemen  0.1
21 Nov 2020 12:00 Al Luyhayyah Yemen  0.1
21 Nov 2020 12:00 Darimoh Somalia  0.1
21 Nov 2020 03:15 Baarbacadle Somalia  0.1
21 Nov 2020 03:15 Eyl Somalia  0.1
21 Nov 2020 03:15 Daga Laha Uein Somalia  0.1
21 Nov 2020 06:45 Denouda Digdiglei Somalia  0.1
21 Nov 2020 10:45 Al Jazirah Yemen  0.1
21 Nov 2020 10:45 Qurayyah Yemen  0.1
21 Nov 2020 10:45 Al 'Urj Yemen  0.1
21 Nov 2020 12:00 Fugwa Saudi Arabia  0.1
21 Nov 2020 12:00 Humr Saudi Arabia  0.1
21 Nov 2020 12:00 Farasan Saudi Arabia  0.1
21 Nov 2020 03:30 Culli Somalia  0.1

Calculation folder at this link