Overall Green Tropical Cyclone for NICHOLAS-21 in United States from 12 Sep 2021 15:00 UTC to 14 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 NICHOLAS-21

in United States

14 Sep 2021 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 NICHOLAS-21 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	480 thousand in Category 1 or higher
Maximum wind speed	120 km/h
Maximum storm surge	1.3 m (14 Sep 09:00 UTC)
Vulnerability	Low (United States)
Landfall	between 14 Sep 2021 03:00 - 14 Sep 2021 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	74 km/h	1.0 m	n.a.	0.5
Overall	120 km/h	1.3 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

74 km/h Current Max.

Up to 12 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	12 Sep 2021 15:00	102	9.4 million	No people	Mexico, United States
2	12 Sep 2021 21:00	102	14 million	No people	Mexico, United States
3	13 Sep 2021 03:00	102	11.7 million	No people	Mexico, United States
4	13 Sep 2021 04:30	102	15.8 million	No people	Mexico, United States
5	13 Sep 2021 09:00	111	16.2 million	No people	Mexico, United States
6	13 Sep 2021 15:00	111	11.7 million	No people	United States, Mexico
7	13 Sep 2021 21:00	111	12 million	No people	United States, Mexico
8	14 Sep 2021 03:00	120	12.4 million	3.4 million	United States
9	14 Sep 2021 09:00	111	11.6 million	480 thousand	United States
10	14 Sep 2021 15:00	74	12 million	480 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	12 Sep 2021 15:00	Tropical storm	65	no people	no people	20.5, -94.8
2	12 Sep 2021 21:00	Tropical storm	65	no people	1900 people	22.8, -95.5
3	13 Sep 2021 03:00	Tropical storm	65	no people	910000 people	22.5, -95.5
4	13 Sep 2021 04:30	Tropical storm	83	no people	2.8 million people	24.8, -96.3
5	13 Sep 2021 09:00	Tropical storm	93	no people	3.7 million people	25.5, -96.6
6	13 Sep 2021 15:00	Tropical storm	93	no people	3.7 million people	26.4, -96.8
7	13 Sep 2021 21:00	Tropical storm	102	no people	7.6 million people	27.4, -96.4
8	14 Sep 2021 03:00	Category 1	120	3.4 million people	8.5 million people	28.4, -95.8
9	14 Sep 2021 09:00	Tropical storm	111	no people	8.1 million people	29.3, -95.6	United States
10	14 Sep 2021 15:00	Tropical storm	74	no people	8.6 million people	29.6, -95.3	United States
10	15 Sep 2021 00:00	Tropical depression	56	no people	no people	30.1, -94.7	United States
10	15 Sep 2021 12:00	Tropical depression	46	no people	no people	30.4, -93.9	United States
10	16 Sep 2021 00:00	Tropical depression	46	no people	no people	30.4, -93.2	United States
10	16 Sep 2021 12:00	Tropical depression	28	no people	no people	30.5, -92.8	United States
10	17 Sep 2021 00:00	Tropical depression	28	no people	no people	30.9, -92.8	United States

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

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.