Overall Green Tropical Cyclone alert for WALAKA-18 in United States Minor Outlying Islands from 29 Sep 2018 21:00 UTC to 03 Oct 2018 21:00 UTC

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

Overall Green alert Tropical Cyclone for WALAKA-18

in United States Minor Outlying Islands

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Meteorological source:

GDACS NOAA

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone WALAKA-18 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	United States Minor Outlying Islands
Exposed population	No people in Category 1 or higher
Maximum wind speed	269 km/h
Maximum storm surge
Vulnerability	-- ()

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	222 km/h	0.0 m	n.a.	0.5
Overall	269 km/h	0.0 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

222 km/h Current Max.

Up to no people in Category 1 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	29 Sep 2018 21:00	204	No people	No people	United States Minor Outlying Islands
2	30 Sep 2018 03:00	204	No people	No people	United States Minor Outlying Islands
3	30 Sep 2018 09:00	204	No people	No people	United States Minor Outlying Islands
4	30 Sep 2018 15:00	222	No people	No people	United States Minor Outlying Islands
5	30 Sep 2018 21:00	222	No people	No people	United States Minor Outlying Islands
6	01 Oct 2018 03:00	222	No people	No people	United States Minor Outlying Islands
7	01 Oct 2018 09:00	250	No people	No people	United States Minor Outlying Islands
8	01 Oct 2018 15:00	259	No people	No people	United States Minor Outlying Islands
9	01 Oct 2018 21:00	269	No people	No people	United States Minor Outlying Islands
10	02 Oct 2018 03:00	269	No people	No people	United States Minor Outlying Islands
11	02 Oct 2018 09:00	259	No people	No people	United States Minor Outlying Islands
12	02 Oct 2018 15:00	250	No people	No people	United States Minor Outlying Islands
14	03 Oct 2018 03:00	213	No people	No people	United States Minor Outlying Islands
15	03 Oct 2018 09:00	213	No people	No people	United States Minor Outlying Islands
16	03 Oct 2018 15:00	222	No people	No people	United States Minor Outlying Islands
17	03 Oct 2018 21:00	222	No people	No people	United States Minor Outlying Islands

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	29 Sep 2018 21:00	Tropical storm	65	no people	no people	11.5, -159.1
2	30 Sep 2018 03:00	Tropical storm	65	no people	no people	11.4, -160.5
3	30 Sep 2018 09:00	Tropical storm	65	no people	no people	11.6, -162.1
4	30 Sep 2018 15:00	Tropical storm	93	no people	no people	11.7, -163.9
5	30 Sep 2018 21:00	Tropical storm	102	no people	no people	11.9, -165.2
6	01 Oct 2018 03:00	Category 1	120	no people	no people	11.9, -166.4
7	01 Oct 2018 09:00	Category 2	167	no people	no people	11.9, -167.5
8	01 Oct 2018 15:00	Category 3	204	no people	no people	12.3, -168.3
9	01 Oct 2018 21:00	Category 4	241	no people	no people	12.9, -169.3
10	02 Oct 2018 03:00	Category 5	259	no people	no people	13.2, -169.8	United States Minor Outlying Islands
11	02 Oct 2018 09:00	Category 5	259	no people	no people	13.7, -170	United States Minor Outlying Islands
12	02 Oct 2018 15:00	Category 4	250	no people	no people	14.7, -170	United States Minor Outlying Islands
14	03 Oct 2018 03:00	Category 4	213	no people	no people	16.7, -170.2	United States Minor Outlying Islands
15	03 Oct 2018 09:00	Category 4	213	no people	no people	18.1, -170	United States Minor Outlying Islands
16	03 Oct 2018 15:00	Category 4	222	no people	no people	19.6, -169.4	United States Minor Outlying Islands
17	03 Oct 2018 21:00	Category 4	222	no people	no people	21.4, -168.5
17	04 Oct 2018 06:00	Category 3	204	no people	no people	24.2, -167.4
17	04 Oct 2018 18:00	Category 2	157	no people	no people	27.9, -167
17	05 Oct 2018 06:00	Category 1	130	no people	no people	30.5, -167.3
17	05 Oct 2018 18:00	Tropical storm	102	no people	no people	32.4, -166.7
17	06 Oct 2018 18:00	Tropical storm	83	no people	no people	40, -160.6
17	07 Oct 2018 18:00	Tropical storm	65	no people	no people	51.5, -149

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

0 m

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 (0 locations). Calculation based on advisory number 12 of 02 Oct 2018 15:00:00 UTC. (Simulation using 6 minute resolution)

Alert

Date (UTC)

Name

Country

Storm surge height (m)

Disclaimer
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.