Overall Orange Tropical Cyclone alert for GATI-20 in Somalia from 21 Nov 2020 18:00 UTC to 22 Nov 2020 00:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Orange alert Tropical Cyclone for GATI-20

in Somalia

22 Nov 2020 00 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

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	0.3 m (22 Nov 16:00 UTC)
Vulnerability	High (Somalia)
Landfall	between 22 Nov 2020 12:00 - 23 Nov 2020 00:00 in 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
Current	111 km/h	0.3 m	n.a.	0.5
Overall	185 km/h	0.3 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

111 km/h Current Max.

Up to 900000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert	N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
	1	21 Nov 2020 18:00	74	380 thousand	No people	Somalia
	2	22 Nov 2020 00:00	111	900 thousand	No people	Somalia

Bulletin Timeline

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
1	21 Nov 2020 18:00	Tropical storm	65	no people	no people	10.8, 55.6
2	22 Nov 2020 00:00	Tropical storm	93	no people	35000 people	10.5, 53.8
2	22 Nov 2020 12:00	Tropical storm	111	no people	620000 people	10.3, 51.7
2	23 Nov 2020 00:00	Tropical storm	83	no people	670000 people	10.5, 49.5	Somalia
2	23 Nov 2020 12:00	Tropical storm	65	no people	320000 people	10.6, 48	Somalia
2	24 Nov 2020 00:00	Tropical depression	46	no people	no people	10.7, 45.9	Somalia

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

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Exposed population - AoIs

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

Countries

Country
Somalia

Provinces

Region Province	Country
Bari	Somalia
Sanaag	Somalia
Togdheer	Somalia
Woqooyi Galbeed	Somalia

Critical infrastructure

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

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)
Scusciuban	CMS	342	Civ.	Unpaved	No	6500
Bosaso	BSA	6	Civ.	Unpaved	No	3400
Gardo	GSR	802	Civ.	Unpaved	No	5200
Las Korei	LKR	unknown				0
Erigavo	ERA	1743	Civ.	Unpaved	No	4000

Ports

Name	LOCODE	Country
Dante (Ras Hafun)	SODAN	Somalia
Handa		Somalia
Bender Beila		Somalia
Bosaso		Somalia
Karin		Somalia

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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

0.3 m

The maximum Storm surge height is 0.3m in Hurdiyo, Somalia. This height is estimated for 22 Nov 2020 16:00 UTC .

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.

Locations affected by Storm surge (29 locations). Calculation based on advisory number 2 of 22 Nov 2020 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	22 Nov 2020 16:00	Hurdiyo	Somalia	0.3
	22 Nov 2020 17:00	Sala Gon	Somalia	0.2
	22 Nov 2020 17:00	Deh-Cabo	Somalia	0.2
	22 Nov 2020 17:00	Cadayo	Somalia	0.2
	22 Nov 2020 22:00	Ascira	Somalia	0.2
	23 Nov 2020 01:00	Takhushih	Somalia	0.2
	22 Nov 2020 17:00	Xaafuun	Somalia	0.2
	22 Nov 2020 17:00	Bargaal	Somalia	0.2
	23 Nov 2020 03:00	Aylu	Eritrea	0.2
	22 Nov 2020 17:00	Mach	Somalia	0.1
	23 Nov 2020 01:00	Alela	Eritrea	0.1
	22 Nov 2020 21:00	Caluula	Somalia	0.1
	23 Nov 2020 02:00	Lughaye	Somalia	0.1
	23 Nov 2020 01:00	Beraisole	Eritrea	0.1
	23 Nov 2020 02:00	Saylac	Somalia	0.1
	23 Nov 2020 08:00	Ceelaayo	Somalia	0.1
	22 Nov 2020 20:00	Boho	Somalia	0.1
	23 Nov 2020 02:00	Rehayto	Eritrea	0.1
	23 Nov 2020 01:00	Aseb	Eritrea	0.1
	22 Nov 2020 19:00	Aiesloho	Somalia	0.1
	23 Nov 2020 02:00	Harag Jid	Somalia	0.1
	23 Nov 2020 15:00	Hundegal	Somalia	0.1
	23 Nov 2020 04:00	Boosaaso	Somalia	0.1
	23 Nov 2020 00:00	Marero	Somalia	0.1
	23 Nov 2020 03:00	Loyado	Djibouti	0.1
	22 Nov 2020 19:00	Tooxin	Somalia	0.1
	23 Nov 2020 02:00	Geeri	Somalia	0.1
	22 Nov 2020 23:00	Bacaad	Somalia	0.1
	23 Nov 2020 04:00	Bender Siyaada	Somalia	0.1

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.