Overall Orange 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 GDACS
Glide number: TC-2020-000232-SOM
Exposed countries Somalia
Exposed population 40 thousand in Category 1 or higher
Maximum wind speed 185 km/h
Maximum storm surge 0.6 m (22 Nov 15:00 UTC)
Vulnerability High (Somalia)

GDACS Score

GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
For more info on GDACS core click here.
  Wind Storm surge Rainfall GDACS score
Current 56 km/h 0.1 m n.a. 0.5
Overall 185 km/h 0.6 m n.a. 1.5

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

Wind

56 km/h Current Max.

Up to 390000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Level N° Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 21 Nov 2020 18:00 74 380 thousand No people Somalia
Green 2 22 Nov 2020 00:00 111 900 thousand No people Somalia
Orange 3 22 Nov 2020 06:00 185 1.3 million 140 thousand Somalia
Orange 4 22 Nov 2020 12:00 167 880 thousand 120 thousand Somalia
Green 5 22 Nov 2020 18:00 130 390 thousand 50 thousand Somalia
Green 6 23 Nov 2020 00:00 83 390 thousand 40 thousand Somalia
Green 7 23 Nov 2020 06:00 74 390 thousand 40 thousand Somalia
Green 8 23 Nov 2020 12:00 65 400 thousand 40 thousand Somalia
Green 9 23 Nov 2020 18:00 56 390 thousand 40 thousand Somalia

Bulletin Timeline

Level N° Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 21 Nov 2020 18:00 Tropical storm 65 no people no people 10.8, 55.6
GREEN
2 22 Nov 2020 00:00 Tropical storm 93 no people 35000 people 10.5, 53.8
ORANGE
3 22 Nov 2020 06:00 Category 3 185 68000 people 280000 people 10.3, 52.5
ORANGE
4 22 Nov 2020 12:00 Category 2 167 57000 people 200000 people 10.4, 51.5 Somalia
GREEN
5 22 Nov 2020 18:00 Category 1 130 31000 people 190000 people 10.3, 50.6 Somalia
GREEN
6 23 Nov 2020 00:00 Tropical storm 83 no people 350000 people 10.7, 50 Somalia
GREEN
7 23 Nov 2020 06:00 Tropical storm 74 no people 130000 people 11.3, 49.3 Somalia
GREEN
8 23 Nov 2020 12:00 Tropical storm 65 no people 110000 people 11.6, 48.6
GREEN
9 23 Nov 2020 18:00 Tropical depression 56 no people no people 11.9, 47.5
GREEN
9 24 Nov 2020 06:00 Tropical depression 46 no people no people 11.5, 45.9
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Source: GADM and GHSL

Provinces

Source: GADM and GHSL

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

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StormSurge

The JRC has developed an experimental global storm surge model. 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.