Overall Green Tropical Cyclone for NEPARTAK-21 in Japan from 23 Jul 2021 12:00 UTC to 28 Jul 2021 12:00 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 NEPARTAK-21

in Japan

Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GDACS
Exposed countries	Japan
Exposed population	No people in Category 1 or higher
Maximum wind speed	83 km/h
Maximum storm surge	0.5 m (26 Jul 23:00 UTC)
Vulnerability	Low (Japan)
Landfall	between 27 Jul 2021 18:00 - 28 Jul 2021 00:00 in Japan

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	0.5 m	n.a.	0.5
Overall	83 km/h	0.5 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 42.5 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	23 Jul 2021 12:00	93	45.7 million	No people	Japan
2	23 Jul 2021 18:00	83	13.7 million	No people	Japan
3	24 Jul 2021 00:00	83	45.8 million	No people	Japan
4	24 Jul 2021 06:00	83	9.8 million	No people	Japan
5	24 Jul 2021 12:00	83	6.8 million	No people	Japan
6	24 Jul 2021 18:00	65	No people	No people
7	25 Jul 2021 00:00	65	No people	No people
8	25 Jul 2021 06:00	74	6.4 million	No people	Japan
9	25 Jul 2021 12:00	74	6.6 million	No people	Japan
10	25 Jul 2021 18:00	74	6.5 million	No people	Japan
11	26 Jul 2021 00:00	74	2.5 million	No people	Japan
12	26 Jul 2021 06:00	74	10.5 million	No people	Japan
13	26 Jul 2021 12:00	74	8.7 million	No people	Japan
14	26 Jul 2021 18:00	74	36.2 million	No people	Japan
15	27 Jul 2021 00:00	83	46.4 million	No people	Japan
16	27 Jul 2021 06:00	83	48.3 million	No people	Japan
17	27 Jul 2021 12:00	65	42 million	No people	Japan
18	27 Jul 2021 18:00	65	42.9 million	No people	Japan
19	28 Jul 2021 00:00	56	42.5 million	No people	Japan
20	28 Jul 2021 06:00	56	42.5 million	No people	Japan
21	28 Jul 2021 12:00	46	42.5 million	No people	Japan

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	23 Jul 2021 12:00	Tropical depression	56	no people	no people	24, 148.6
2	23 Jul 2021 18:00	Tropical storm	65	no people	no people	24.7, 149.4
3	24 Jul 2021 00:00	Tropical storm	65	no people	no people	25, 149.5
4	24 Jul 2021 06:00	Tropical storm	65	no people	no people	26.2, 150
5	24 Jul 2021 12:00	Tropical storm	65	no people	no people	27.3, 150.3
6	24 Jul 2021 18:00	Tropical storm	65	no people	no people	28.1, 150.4
7	25 Jul 2021 00:00	Tropical storm	65	no people	no people	28.8, 149.9
8	25 Jul 2021 06:00	Tropical storm	65	no people	no people	31.2, 150.5
9	25 Jul 2021 12:00	Tropical storm	65	no people	no people	31.8, 150.5
10	25 Jul 2021 18:00	Tropical storm	65	no people	no people	32.9, 150.3
11	26 Jul 2021 00:00	Tropical storm	65	no people	no people	33.5, 149.8
12	26 Jul 2021 06:00	Tropical storm	65	no people	<1000 people	34.6, 146.8
13	26 Jul 2021 12:00	Tropical storm	65	no people	230000 people	35.2, 144.6
14	26 Jul 2021 18:00	Tropical storm	74	no people	28.7 million people	34.6, 142.7
15	27 Jul 2021 00:00	Tropical storm	83	no people	40.4 million people	34.9, 142.5
16	27 Jul 2021 06:00	Tropical storm	83	no people	45.4 million people	35.8, 142.3
17	27 Jul 2021 12:00	Tropical storm	65	no people	15.6 million people	36.4, 142.1
18	27 Jul 2021 18:00	Tropical storm	65	no people	8.3 million people	37.8, 142
19	28 Jul 2021 00:00	Tropical depression	56	no people	no people	39.1, 141.6	Japan
20	28 Jul 2021 06:00	Tropical depression	56	no people	no people	40.2, 140.3	Japan
21	28 Jul 2021 12:00	Tropical depression	46	no people	no people	40.9, 138.5
21	29 Jul 2021 00:00	Tropical depression	37	no people	no people	41.4, 136.6
21	29 Jul 2021 12:00	Tropical depression	37	no people	no people	41.3, 135.4

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.