Overall Green Tropical Cyclone for LARRY-21 in Canada, Saint Pierre and Miquelon from 31 Aug 2021 21:00 UTC to 11 Sep 2021 15:00 UTC

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

Overall Green Tropical Cyclone for LARRY-21

in Canada, Saint Pierre and Miquelon

11 Sep 2021 15 UTC

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to select bulletin time

Meteorological source:

GDACS NOAA

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone LARRY-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Canada, Saint Pierre and Miquelon
Exposed population	420 thousand in Category 1 or higher
Maximum wind speed	204 km/h
Maximum storm surge	0.9 m (11 Sep 05:00 UTC)
Vulnerability	Low (Canada)

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	111 km/h	0.9 m	n.a.	0.5
Overall	204 km/h	0.9 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 830000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	31 Aug 2021 21:00	167	No people	No people
2	01 Sep 2021 03:00	176	No people	No people
3	01 Sep 2021 09:00	194	No people	No people
4	01 Sep 2021 15:00	194	No people	No people
5	01 Sep 2021 21:00	194	No people	No people
6	02 Sep 2021 03:00	204	No people	No people
7	02 Sep 2021 09:00	213	No people	No people
8	02 Sep 2021 15:00	222	No people	No people
9	02 Sep 2021 21:00	222	No people	No people
10	03 Sep 2021 03:00	222	No people	No people
11	03 Sep 2021 09:00	222	No people	No people
12	03 Sep 2021 15:00	222	No people	No people
13	03 Sep 2021 21:00	222	No people	No people
14	04 Sep 2021 03:00	222	No people	No people
15	04 Sep 2021 09:00	222	No people	No people
16	04 Sep 2021 15:00	231	40 thousand	No people	Bermuda
17	04 Sep 2021 21:00	222	No people	No people
18	05 Sep 2021 03:00	204	No people	No people
19	05 Sep 2021 09:00	204	No people	No people
20	05 Sep 2021 15:00	204	No people	No people
21	05 Sep 2021 21:00	204	Few people	No people
22	06 Sep 2021 03:00	204	No people	No people
23	06 Sep 2021 09:00	204	250 thousand	No people	Canada
24	06 Sep 2021 15:00	204	310 thousand	No people	Canada
25	06 Sep 2021 21:00	204	410 thousand	7 thousand	Canada
26	07 Sep 2021 03:00	204	450 thousand	260 thousand	Canada
27	07 Sep 2021 09:00	194	490 thousand	270 thousand	Canada
28	07 Sep 2021 15:00	185	490 thousand	260 thousand	Canada
29	07 Sep 2021 21:00	185	510 thousand	290 thousand	Canada
30	08 Sep 2021 03:00	185	510 thousand	280 thousand	Canada
31	08 Sep 2021 09:00	185	510 thousand	270 thousand	Canada
34	09 Sep 2021 03:00	157	770 thousand	330 thousand	Canada
35	09 Sep 2021 09:00	157	730 thousand	320 thousand	Canada
36	09 Sep 2021 15:00	148	730 thousand	330 thousand	Canada
37	09 Sep 2021 21:00	148	760 thousand	350 thousand	Saint Pierre and Miquelon, Canada
38	10 Sep 2021 03:00	148	800 thousand	350 thousand	Saint Pierre and Miquelon, Canada
39	10 Sep 2021 09:00	139	850 thousand	370 thousand	Saint Pierre and Miquelon, Canada
40	10 Sep 2021 15:00	130	840 thousand	370 thousand	Saint Pierre and Miquelon, Canada
41	10 Sep 2021 21:00	130	830 thousand	390 thousand	Saint Pierre and Miquelon, Canada
42	11 Sep 2021 03:00	130	830 thousand	380 thousand	Canada, Saint Pierre and Miquelon
43	11 Sep 2021 09:00	120	830 thousand	420 thousand	Canada, Saint Pierre and Miquelon
44	11 Sep 2021 15:00	111	830 thousand	420 thousand	Canada, Saint Pierre and Miquelon

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	31 Aug 2021 21:00	Tropical depression	56	no people	no people	11.2, -21.1
2	01 Sep 2021 03:00	Tropical depression	56	no people	no people	12.1, -23.2
3	01 Sep 2021 09:00	Tropical storm	74	no people	no people	12.3, -24.8
4	01 Sep 2021 15:00	Tropical storm	83	no people	no people	12.3, -27.6
5	01 Sep 2021 21:00	Tropical storm	111	no people	no people	12.5, -29.4
6	02 Sep 2021 03:00	Tropical storm	111	no people	no people	12.8, -30.9
7	02 Sep 2021 09:00	Category 1	120	no people	no people	13, -32.3
8	02 Sep 2021 15:00	Category 1	130	no people	no people	13.5, -34.2
9	02 Sep 2021 21:00	Category 1	130	no people	no people	13.7, -35.8
10	03 Sep 2021 03:00	Category 1	139	no people	no people	14.1, -37.5
11	03 Sep 2021 09:00	Category 1	148	no people	no people	14.6, -38.9
12	03 Sep 2021 15:00	Category 1	148	no people	no people	14.8, -40.7
13	03 Sep 2021 21:00	Category 2	157	no people	no people	15, -42
14	04 Sep 2021 03:00	Category 3	185	no people	no people	15.5, -43.3
15	04 Sep 2021 09:00	Category 3	185	no people	no people	16.3, -44.6
16	04 Sep 2021 15:00	Category 3	204	no people	no people	16.8, -45.8
17	04 Sep 2021 21:00	Category 3	204	no people	no people	17.4, -47.1
18	05 Sep 2021 03:00	Category 3	194	no people	no people	18, -48
19	05 Sep 2021 09:00	Category 3	194	no people	no people	18.8, -49
20	05 Sep 2021 15:00	Category 3	204	no people	no people	19.5, -49.7
21	05 Sep 2021 21:00	Category 3	204	no people	no people	20.5, -50.6
22	06 Sep 2021 03:00	Category 3	204	no people	no people	21, -51.4
23	06 Sep 2021 09:00	Category 3	194	no people	no people	21.5, -52.4
24	06 Sep 2021 15:00	Category 3	194	no people	no people	22.1, -52.9
25	06 Sep 2021 21:00	Category 3	204	no people	no people	22.5, -53.9
26	07 Sep 2021 03:00	Category 3	204	no people	no people	23.1, -54.4
27	07 Sep 2021 09:00	Category 3	194	no people	no people	23.8, -55.1
28	07 Sep 2021 15:00	Category 3	185	no people	no people	24.4, -55.6
29	07 Sep 2021 21:00	Category 3	185	no people	no people	25.1, -56.3
30	08 Sep 2021 03:00	Category 3	185	no people	no people	25.8, -56.8
31	08 Sep 2021 09:00	Category 3	185	no people	no people	26.5, -57.3
34	09 Sep 2021 03:00	Category 2	157	no people	71000 people	29.7, -60.3
35	09 Sep 2021 09:00	Category 2	157	no people	71000 people	30.9, -61.1
36	09 Sep 2021 15:00	Category 1	148	no people	71000 people	32, -61.6
37	09 Sep 2021 21:00	Category 1	148	no people	71000 people	33.9, -62.2
38	10 Sep 2021 03:00	Category 1	148	no people	no people	35.5, -62.3
39	10 Sep 2021 09:00	Category 1	139	no people	4600 people	37.7, -61.8
40	10 Sep 2021 15:00	Category 1	130	no people	550000 people	40, -60.5
41	10 Sep 2021 21:00	Category 1	130	390000 people	750000 people	43.5, -58.2
42	11 Sep 2021 03:00	Category 1	130	380000 people	600000 people	46.8, -54.9
43	11 Sep 2021 09:00	Category 1	120	no people	450000 people	50.7, -51.7
44	11 Sep 2021 15:00	Tropical storm	111	no people	10000 people	54, -48.2
44	12 Sep 2021 00:00	Tropical storm	102	no people	no people	57.8, -44.9

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.

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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

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.

Disclaimer - Copyright
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.