Overall Green alert Tropical Cyclone for LEE-23
in Canada, United States

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 (10 Sep 03:00 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 241 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

Wind

241 km/h Current Max.

Up to no people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 05 Sep 2023 15:00 222 Few people No people Antigua and Barbuda, Anguilla
Green 2 05 Sep 2023 21:00 231 No people No people
Green 3 06 Sep 2023 03:00 241 No people No people

Bulletin Timeline

Alert 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 05 Sep 2023 15:00 Tropical depression 56 no people no people 12.5, -40.2
GREEN
2 05 Sep 2023 21:00 Tropical storm 74 no people no people 13.2, -41.8
GREEN
3 06 Sep 2023 03:00 Tropical storm 83 no people no people 13.5, -43
GREEN
3 06 Sep 2023 12:00 Tropical storm 102 no people no people 14.1, -44.9
GREEN
3 07 Sep 2023 00:00 Category 1 120 no people no people 14.9, -47.2
GREEN
3 07 Sep 2023 12:00 Category 1 139 no people no people 15.7, -49.7
GREEN
3 08 Sep 2023 00:00 Category 2 167 no people no people 16.6, -52.2
GREEN
3 08 Sep 2023 12:00 Category 3 194 no people no people 17.8, -54.8
GREEN
3 09 Sep 2023 00:00 Category 4 213 no people no people 18.9, -57.1
GREEN
3 10 Sep 2023 00:00 Category 4 231 no people no people 20.8, -61.5
GREEN
3 11 Sep 2023 00:00 Category 4 241 no people no people 22.5, -65
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

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.

...

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in The Settlement, British Virgin Islands. This height is estimated for 10 Sep 2023 03:00 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 (25 locations). Calculation based on advisory number 3 of 06 Sep 2023 03:00:00 UTC. (Simulation using 2 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
10 Sep 2023 03:00 The Settlement British Virgin Islands  0.2
10 Sep 2023 03:00 Spanish Town British Virgin Islands  0.1
10 Sep 2023 02:00 Codrington Antigua and Barbuda  0.1
10 Sep 2023 03:00 Adelphi Virgin Islands  0.1
10 Sep 2023 03:00 Neltjeberg Virgin Islands  0.1
10 Sep 2023 03:00 Cabritaberg Virgin Islands  0.1
10 Sep 2023 03:00 Barrett Virgin Islands  0.1
10 Sep 2023 03:00 Charlotte Amalie Virgin Islands  0.1
10 Sep 2023 03:00 Enighed Virgin Islands  0.1
10 Sep 2023 03:00 Bellevue Virgin Islands  0.1
10 Sep 2023 03:00 Mandal Virgin Islands  0.1
10 Sep 2023 03:00 Bolongo Virgin Islands  0.1
10 Sep 2023 03:00 Donoe Virgin Islands  0.1
10 Sep 2023 03:00 Benner Virgin Islands  0.1
10 Sep 2023 03:00 Contant Virgin Islands  0.1
10 Sep 2023 03:00 Adrian Virgin Islands  0.1
10 Sep 2023 03:00 Fish Bay Virgin Islands  0.1
10 Sep 2023 03:00 Belle Vue British Virgin Islands  0.1
10 Sep 2023 03:00 Annaberg Virgin Islands  0.1
10 Sep 2023 03:00 Bordeaux Virgin Islands  0.1
10 Sep 2023 03:00 Calabash Boom Virgin Islands  0.1
10 Sep 2023 03:00 Hermitage Virgin Islands  0.1
10 Sep 2023 03:00 East End Virgin Islands  0.1
10 Sep 2023 03:00 Road Town British Virgin Islands  0.1
10 Sep 2023 03:00 Pacham Town British Virgin Islands  0.1