Overall Green Tropical Cyclone for SALLY-20 in United States from 11 Sep 2020 21:00 UTC to 17 Sep 2020 09:00 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 SALLY-20

in United States

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Meteorological source:

GDACS NOAA

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone SALLY-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	United States
Exposed population	770 thousand in Category 1 or higher
Maximum wind speed	167 km/h
Maximum storm surge	1.6 m (16 Sep 11:00 UTC)
Vulnerability	Low (United States)
Landfall	between 17 Sep 2020 03:00 - 17 Sep 2020 09:00 in United States

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	46 km/h	1.6 m	n.a.	0.5
Overall	167 km/h	1.6 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

46 km/h Current Max.

Up to 6.6 million 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	11 Sep 2020 21:00	111	4.9 million	No people	United States
2	12 Sep 2020 03:00	111	4.8 million	No people	United States
3	12 Sep 2020 09:00	111	4.3 million	No people	United States
4	12 Sep 2020 15:00	130	3.6 million	No people	United States
5	12 Sep 2020 21:00	139	5.8 million	350 thousand	United States
6	13 Sep 2020 03:00	139	7.5 million	560 thousand	United States
7	13 Sep 2020 09:00	157	6.1 million	1.2 million	United States
8	13 Sep 2020 15:00	148	7.4 million	1.1 million	United States
9	13 Sep 2020 21:00	148	6.6 million	860 thousand	United States
10	14 Sep 2020 03:00	148	7.3 million	170 thousand	United States
11	14 Sep 2020 09:00	139	5.7 million	250 thousand	United States
12	14 Sep 2020 15:00	148	5.9 million	330 thousand	United States
13	14 Sep 2020 16:30	167	6.1 million	370 thousand	United States
14	14 Sep 2020 21:00	176	6.7 million	640 thousand	United States
15	15 Sep 2020 03:00	176	6.3 million	650 thousand	United States
16	15 Sep 2020 09:00	139	7 million	470 thousand	United States
17	15 Sep 2020 15:00	139	7.1 million	530 thousand	United States
18	15 Sep 2020 21:00	130	7.6 million	1.1 million	United States
19	16 Sep 2020 03:00	148	6.8 million	720 thousand	United States
20	16 Sep 2020 06:30	176	6.8 million	700 thousand	United States
21	16 Sep 2020 09:00	167	12 million	930 thousand	United States
22	16 Sep 2020 15:00	130	6.9 million	780 thousand	United States
23	16 Sep 2020 21:00	93	6.7 million	770 thousand	United States
24	17 Sep 2020 03:00	56	6.6 million	770 thousand	United States
25	17 Sep 2020 09:00	46	6.6 million	770 thousand	United States

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	11 Sep 2020 21:00	Tropical depression	56	no people	no people	25.4, -79
2	12 Sep 2020 03:00	Tropical depression	56	no people	no people	25.7, -79.8
3	12 Sep 2020 09:00	Tropical depression	56	no people	no people	25.6, -80.7	United States
4	12 Sep 2020 15:00	Tropical depression	56	no people	no people	25.6, -81.5
5	12 Sep 2020 21:00	Tropical storm	65	no people	1.5 million people	25.7, -81.9
6	13 Sep 2020 03:00	Tropical storm	65	no people	1.7 million people	26.3, -82.9
7	13 Sep 2020 09:00	Tropical storm	83	no people	99000 people	27, -84
8	13 Sep 2020 15:00	Tropical storm	93	no people	no people	27.5, -84.9
9	13 Sep 2020 21:00	Tropical storm	93	no people	no people	27.8, -85.9
10	14 Sep 2020 03:00	Tropical storm	93	no people	190000 people	28.2, -86.2
11	14 Sep 2020 09:00	Tropical storm	93	no people	110000 people	28.3, -87.3
12	14 Sep 2020 15:00	Tropical storm	102	no people	290000 people	28.4, -86.9
13	14 Sep 2020 16:30	Category 1	148	no people	860000 people	28.7, -87
14	14 Sep 2020 21:00	Category 2	157	no people	2.3 million people	28.8, -87.4
15	15 Sep 2020 03:00	Category 2	157	no people	1.6 million people	28.9, -87.6
16	15 Sep 2020 09:00	Category 1	139	<1000 people	2.6 million people	28.9, -88.1
17	15 Sep 2020 15:00	Category 1	139	1100 people	2.9 million people	29.1, -88.2
18	15 Sep 2020 21:00	Category 1	130	180000 people	3.1 million people	29.5, -88.1
19	16 Sep 2020 03:00	Category 1	139	640000 people	2.5 million people	29.8, -87.8
20	16 Sep 2020 06:30	Category 2	167	640000 people	2.5 million people	29.9, -87.8
21	16 Sep 2020 09:00	Category 2	167	860000 people	2.9 million people	30.1, -87.7	United States
22	16 Sep 2020 15:00	Category 1	130	740000 people	3.2 million people	30.6, -87.4	United States
23	16 Sep 2020 21:00	Tropical storm	93	no people	3.3 million people	31.2, -86.8	United States
24	17 Sep 2020 03:00	Tropical depression	56	no people	no people	31.9, -86.1	United States
25	17 Sep 2020 09:00	Tropical depression	46	no people	no people	31.8, -85.7	United States
25	17 Sep 2020 18:00	Tropical depression	46	no people	no people	32.8, -84.2	United States
25	18 Sep 2020 06:00	Tropical depression	37	no people	no people	34, -81.3	United States
25	18 Sep 2020 18:00	Tropical depression	37	no people	no people	35.1, -78.4	United States

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.