Overall Green Tropical Cyclone alert for LEE-23 in Canada, United States on 05 Sep 2023 15:00 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 LEE-23

in Canada, United States

05 Sep 2023 15 UTC

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Meteorological source:

GDACS NOAA

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GDACS
Exposed countries	Canada, United States
Exposed population	1.1 million in Category 1 or higher
Maximum wind speed	269 km/h
Maximum storm surge	0.2 m (09 Sep 15:00 UTC)
Vulnerability	Low (Canada)

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	222 km/h	0.2 m	n.a.	0.5
Overall	269 km/h	0.2 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

222 km/h Current Max.

Up to no people in Category 1 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	05 Sep 2023 15:00	222	Few people	No people	Antigua and Barbuda, Anguilla

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)
1	05 Sep 2023 15:00	Tropical depression	56	no people	no people	12.5, -40.2
1	06 Sep 2023 00:00	Tropical storm	74	no people	no people	12.8, -42.1
1	06 Sep 2023 12:00	Tropical storm	93	no people	no people	13.6, -44.7
1	07 Sep 2023 00:00	Tropical storm	111	no people	no people	14.4, -47.2
1	07 Sep 2023 12:00	Category 1	130	no people	no people	15.3, -49.7
1	08 Sep 2023 00:00	Category 1	148	no people	no people	16.2, -52.2
1	08 Sep 2023 12:00	Category 2	176	no people	no people	17.3, -54.7
1	09 Sep 2023 12:00	Category 4	213	no people	<1000 people	19.4, -59.1
1	10 Sep 2023 12:00	Category 4	222	no people	no people	21.5, -63.5

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

Critical infrastructure

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

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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

0.2 m

The maximum Storm surge height is 0.2m in Mandal, Virgin Islands. This height is estimated for 09 Sep 2023 15:00 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 (53 locations). Calculation based on advisory number 1 of 05 Sep 2023 15:00:00 UTC. (Simulation using 6 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	09 Sep 2023 15:00	Mandal	Virgin Islands	0.2
	09 Sep 2023 15:00	Bolongo	Virgin Islands	0.2
	09 Sep 2023 15:00	Donoe	Virgin Islands	0.2
	09 Sep 2023 15:00	Benner	Virgin Islands	0.2
	09 Sep 2023 15:00	Contant	Virgin Islands	0.2
	09 Sep 2023 15:00	Adrian	Virgin Islands	0.2
	09 Sep 2023 15:00	Fish Bay	Virgin Islands	0.2
	09 Sep 2023 15:00	Belle Vue	British Virgin Islands	0.2
	09 Sep 2023 15:00	Annaberg	Virgin Islands	0.2
	09 Sep 2023 15:00	Bordeaux	Virgin Islands	0.2
	09 Sep 2023 15:00	Calabash Boom	Virgin Islands	0.2
	09 Sep 2023 15:00	Hermitage	Virgin Islands	0.2
	09 Sep 2023 15:00	East End	Virgin Islands	0.2
	09 Sep 2023 15:00	Road Town	British Virgin Islands	0.2
	09 Sep 2023 15:00	Pacham Town	British Virgin Islands	0.2
	09 Sep 2023 15:00	Spanish Town	British Virgin Islands	0.2
	09 Sep 2023 13:00	Five Islands	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Jolly Harbour	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Bolans	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Urlings	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Jennings	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Ebenezer	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Runaway Bay	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Creekside	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Dickenson Bay	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Golden Grove	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Saint John's	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	John Hughes	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Boons Bay	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Cedar Grove	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Saint Johnston Village	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Potters Village	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Osbourn	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Barnes Hill	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Falmouth Harbour	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Cobbs Cross	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	English Harbour	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Pares	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Betty's Hope	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Newfield	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Willikies	Antigua and Barbuda	0.2
	09 Sep 2023 13:00	Half Moon Bay	Antigua and Barbuda	0.2
	09 Sep 2023 15:00	Adelphi	Virgin Islands	0.1
	09 Sep 2023 15:00	Neltjeberg	Virgin Islands	0.1
	09 Sep 2023 15:00	Cabritaberg	Virgin Islands	0.1
	09 Sep 2023 15:00	Barrett	Virgin Islands	0.1
	09 Sep 2023 15:00	Charlotte Amalie	Virgin Islands	0.1
	09 Sep 2023 15:00	Enighed	Virgin Islands	0.1
	09 Sep 2023 15:00	Bellevue	Virgin Islands	0.1
	09 Sep 2023 15:00	Codrington	Antigua and Barbuda	0.1
	06 Sep 2023 11:00	Colonia do Pescadores	Brazil	0.1
	06 Sep 2023 02:00	Burnside	Suriname	0.1
	06 Sep 2023 02:00	Totness	Suriname	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.