Overall Green Tropical Cyclone alert for SEAN-23 Off-shore from 11 Oct 2023 03:00 UTC to 16 Oct 2023 03:00 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 Green alert Tropical Cyclone for SEAN-23

Off-shore

Meteorological source:

GDACS NOAA

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone SEAN-23 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	HWRF
Exposed countries
Exposed population	No people in Category 1 or higher
Maximum wind speed	86 km/h
Maximum storm surge	0.3 m (12 Oct 00:00 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
HWRF Current	86 km/h	0.3 m	133 mm	0.5
HWRF Overall	90 km/h	0.6 m	496 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

90 km/h

No people by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 11 Oct 2023 18:00 UTC

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Winds (km/h)	Pop in Cat. 1 or higher	TS	Cat. 1	Cat. 2	Cat. 3	Cat. 4	Cat. 5
1	11 Oct 2023 00:00	90	-	-	-	-	-	-	-
2	11 Oct 2023 06:00	86	-	-	-	-	-	-	-
3	11 Oct 2023 12:00	86	-	-	-	-	-	-	-
4	11 Oct 2023 18:00	86	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 11 Oct 2023 18:00 UTC

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000
1	11 Oct 2023 00:00	250	-	-	-	-	-	-	-
2	11 Oct 2023 06:00	142	-	-	-	-	-	-	-
3	11 Oct 2023 12:00	232	-	-	-	-	-	-	-
4	11 Oct 2023 18:00	781	-	-	-	-	-	-	-

Impact estimation for the next 72h

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StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Nieuw Nickerie, Suriname. This height is estimated for 12 Oct 2023 00:00 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.

Storm Surge Exposed population - AoIs

Storm Surge Exposed locations

Calculation based on the bulletin of 11 Oct 2023 18:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	12 Oct 2023 00:00	Nieuw Nickerie	Suriname	0.3
	11 Oct 2023 23:45	Belladrum	Guyana	0.3
	11 Oct 2023 23:45	Weldaad	Guyana	0.3
	11 Oct 2023 23:45	Number Forty	Guyana	0.3
	11 Oct 2023 23:45	Onverwagt	Guyana	0.3
	11 Oct 2023 23:45	Fort Wellington	Guyana	0.3
	11 Oct 2023 23:45	Waterloo	Guyana	0.3
	11 Oct 2023 19:15	La Linea	Venezuela	0.3
	11 Oct 2023 23:45	Coppenamepunt	Suriname	0.3
	11 Oct 2023 23:45	De Kinderen	Guyana	0.3
	11 Oct 2023 23:45	Perth	Guyana	0.3
	11 Oct 2023 23:45	Mahaicony	Guyana	0.3
	11 Oct 2023 23:45	Burnside	Suriname	0.3
	11 Oct 2023 23:45	Totness	Suriname	0.3
	11 Oct 2023 23:45	Hamilton	Suriname	0.3
	11 Oct 2023 22:30	Minerva	Brazil	0.3
	11 Oct 2023 22:30	Agua Doce	Brazil	0.3
	11 Oct 2023 22:30	Nazare	Brazil	0.3
	11 Oct 2023 22:30	Maye	Brazil	0.3
	11 Oct 2023 23:15	Organabo	French Guiana	0.3
	11 Oct 2023 23:15	Fleche	French Guiana	0.3
	11 Oct 2023 23:15	Mamaribo	French Guiana	0.3
	11 Oct 2023 23:15	Iracoubo	French Guiana	0.3
	11 Oct 2023 23:15	Trou Poisson	French Guiana	0.3
	11 Oct 2023 23:15	Roche Brigandin	French Guiana	0.3
	11 Oct 2023 23:15	Sinnamary	French Guiana	0.3
	11 Oct 2023 23:45	Blairmont	Guyana	0.2
	11 Oct 2023 23:45	Everton	Guyana	0.2
	11 Oct 2023 23:45	Rosignol	Guyana	0.2
	11 Oct 2023 23:45	New Amsterdam	Guyana	0.2
	11 Oct 2023 23:45	Fyrish	Guyana	0.2
	11 Oct 2023 23:30	Rosehall	Guyana	0.2
	11 Oct 2023 23:30	Tarlogie Farm	Guyana	0.2
	11 Oct 2023 23:30	Brighton	Guyana	0.2
	11 Oct 2023 23:45	Goldspie	Guyana	0.2
	11 Oct 2023 23:45	Number Forty-six	Guyana	0.2
	11 Oct 2023 23:45	Leeds	Guyana	0.2
	11 Oct 2023 22:30	Colonia do Pescadores	Brazil	0.2
	12 Oct 2023 00:00	Langamankondre	Suriname	0.2
	12 Oct 2023 00:00	Galibi	Suriname	0.2
	12 Oct 2023 00:00	Les Hattes	French Guiana	0.2
	11 Oct 2023 22:45	Aouara	French Guiana	0.2
	12 Oct 2023 00:00	Number Sixty-one	Guyana	0.2
	11 Oct 2023 23:00	Cayenne	French Guiana	0.2
	11 Oct 2023 23:00	Remire	French Guiana	0.2
	11 Oct 2023 23:00	Montjoly	French Guiana	0.2
	11 Oct 2023 23:30	Camp de Coswine	French Guiana	0.2
	12 Oct 2023 00:00	Euca	Brazil	0.2
	11 Oct 2023 23:15	Nieuw Amsterdam	Suriname	0.2
	11 Oct 2023 23:45	Jenipapo	Brazil	0.2
	12 Oct 2023 00:00	Hackney	Guyana	0.2
	12 Oct 2023 00:00	Marlborough	Guyana	0.2
	12 Oct 2023 00:00	Bounty Hall	Guyana	0.2
	11 Oct 2023 23:30	Belfield	Guyana	0.2
	11 Oct 2023 23:30	Enmore	Guyana	0.2
	11 Oct 2023 23:30	Helena	Guyana	0.2
	11 Oct 2023 22:45	Bela Vista	Brazil	0.2
	11 Oct 2023 22:45	Almeriana	Brazil	0.2
	12 Oct 2023 00:00	Crabwood Creek	Guyana	0.2
	12 Oct 2023 00:00	Number 80	Guyana	0.2
	12 Oct 2023 00:00	Corriverton	Suriname	0.2
	11 Oct 2023 23:45	Georgetown	Guyana	0.2
	11 Oct 2023 23:45	Courida Park	Guyana	0.2
	11 Oct 2023 23:45	Buxton	Guyana	0.2
	12 Oct 2023 00:00	Caledonia	Guyana	0.2
	12 Oct 2023 00:00	Parika	Guyana	0.2
	12 Oct 2023 00:00	Leguan I	Guyana	0.2
	12 Oct 2023 00:00	De Kinderen	Guyana	0.2
	12 Oct 2023 00:00	Den Amstel	Guyana	0.2
	11 Oct 2023 23:15	Bellevue	French Guiana	0.2
	12 Oct 2023 00:00	Pomona	Suriname	0.2
	12 Oct 2023 00:00	Clevia	Suriname	0.2
	12 Oct 2023 00:00	Geertruidenberg	Suriname	0.2
	11 Oct 2023 22:45	Kourou	French Guiana	0.2
	11 Oct 2023 23:45	Queenstown	Guyana	0.2
	11 Oct 2023 23:45	Taymoutn Manor Place	Guyana	0.2
	11 Oct 2023 23:45	Anna Regina	Guyana	0.2
	11 Oct 2023 23:45	Hampton Court	Guyana	0.2
	11 Oct 2023 23:45	Capoey	Guyana	0.2
	11 Oct 2023 23:30	Suddie	Guyana	0.1
	11 Oct 2023 20:45	Vila de Sal Rei	Cape Verde	0.1
	11 Oct 2023 20:45	Sal Rel	Cape Verde	0.1
	11 Oct 2023 20:45	Cabecadas	Cape Verde	0.1
	11 Oct 2023 20:45	Rabil	Cape Verde	0.1
	11 Oct 2023 20:45	Ponta Adiante	Cape Verde	0.1
	11 Oct 2023 20:45	Bofareira	Cape Verde	0.1
	11 Oct 2023 20:45	Espingueira	Cape Verde	0.1
	11 Oct 2023 20:45	Derrubado	Cape Verde	0.1
	11 Oct 2023 20:45	Fundo de Figueiras	Cape Verde	0.1
	11 Oct 2023 20:45	Cabeco Dos Tarefes	Cape Verde	0.1
	11 Oct 2023 20:45	Gata	Cape Verde	0.1
	11 Oct 2023 22:15	Caussade	French Guiana	0.1
	11 Oct 2023 23:00	Tonate	French Guiana	0.1
	11 Oct 2023 23:00	Farnous	French Guiana	0.1
	12 Oct 2023 00:00	Aurora	Guyana	0.1
	12 Oct 2023 00:00	Maria Johanna	Guyana	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.