Overall Green alert Tropical Cyclone for HELENE-18
in Portugal, Ireland, United Kingdom
GDACS
Impact Single TC
HWRF
ECMWF
GFS
Impact all weather systems in the area

Impact

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

Meteorological source GDACS
Exposed countries Portugal, Ireland, United Kingdom
Exposed population No people in Category 1 or higher
Maximum wind speed 185 km/h
Maximum storm surge 0.2 m (08 Sep 17:00 UTC)
Vulnerability Low (Portugal)

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
GDACS Current 148 km/h n.a. n.a. 0.5
GDACS Overall 185 km/h 0.2 m n.a. 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

Wind

148 km/h Current Max.

Up to no people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 07 Sep 2018 15:00 111 200 thousand No people Cape Verde
Green 2 07 Sep 2018 21:00 130 350 thousand No people Cape Verde
Green 3 08 Sep 2018 03:00 120 350 thousand No people Cape Verde
Green 4 08 Sep 2018 09:00 148 350 thousand No people Cape Verde
Green 5 08 Sep 2018 15:00 148 50 thousand No people Cape Verde
Green 6 08 Sep 2018 21:00 157 40 thousand No people Cape Verde
Green 7 09 Sep 2018 03:00 167 No people No people
Green 8 09 Sep 2018 09:00 167 No people No people
Green 9 09 Sep 2018 15:00 167 No people No people
Green 10 09 Sep 2018 21:00 167 No people No people
Green 11 10 Sep 2018 03:00 167 No people No people
Green 12 10 Sep 2018 09:00 157 No people No people
Green 13 10 Sep 2018 15:00 185 No people No people
Green 14 10 Sep 2018 21:00 185 No people No people
Green 15 11 Sep 2018 03:00 176 No people No people
Green 16 11 Sep 2018 09:00 185 No people No people
Green 17 11 Sep 2018 15:00 176 40 thousand No people Portugal
Green 18 11 Sep 2018 21:00 167 4 thousand No people Portugal
Green 19 12 Sep 2018 03:00 157 4 thousand No people Portugal
Green 20 12 Sep 2018 09:00 148 50 thousand No people Portugal

Bulletin Timeline

Alert Date (UTC) Category Max winds
(km/h)
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
GREEN
1 07 Sep 2018 15:00 Tropical depression 56 no people no people 13.1, -17.8
GREEN
2 07 Sep 2018 21:00 Tropical depression 56 no people no people 13.2, -18.6
GREEN
3 08 Sep 2018 03:00 Tropical storm 65 no people no people 13.6, -18.5
GREEN
4 08 Sep 2018 09:00 Tropical storm 74 no people no people 13.7, -19.6
GREEN
5 08 Sep 2018 15:00 Tropical storm 74 no people no people 13.4, -20.6
GREEN
6 08 Sep 2018 21:00 Tropical storm 93 no people no people 13.6, -21.7
GREEN
7 09 Sep 2018 03:00 Tropical storm 93 no people no people 13.2, -22.8
GREEN
8 09 Sep 2018 09:00 Tropical storm 102 no people no people 13.2, -24
GREEN
9 09 Sep 2018 15:00 Tropical storm 102 no people no people 13.2, -25
GREEN
10 09 Sep 2018 21:00 Category 1 120 no people no people 13.4, -26
GREEN
11 10 Sep 2018 03:00 Category 1 139 no people no people 13.9, -27.2
GREEN
12 10 Sep 2018 09:00 Category 1 139 no people no people 14.3, -28.9
GREEN
13 10 Sep 2018 15:00 Category 2 167 no people no people 14.6, -30
GREEN
14 10 Sep 2018 21:00 Category 2 167 no people no people 14.9, -31.5
GREEN
15 11 Sep 2018 03:00 Category 2 176 no people no people 15.5, -32.4
GREEN
16 11 Sep 2018 09:00 Category 2 176 no people no people 16, -33.6
GREEN
17 11 Sep 2018 15:00 Category 2 176 no people no people 16.5, -34.3
GREEN
18 11 Sep 2018 21:00 Category 2 167 no people no people 17.2, -34.9
GREEN
19 12 Sep 2018 03:00 Category 2 157 no people no people 18, -35.4
GREEN
20 12 Sep 2018 09:00 Category 1 148 no people no people 19.2, -35.7
GREEN
20 12 Sep 2018 18:00 Category 1 139 no people no people 20.7, -36.6
GREEN
20 13 Sep 2018 06:00 Category 1 120 no people no people 22.9, -37.2
GREEN
20 13 Sep 2018 18:00 Tropical storm 102 no people no people 25.5, -37.3
GREEN
20 14 Sep 2018 06:00 Tropical storm 102 no people no people 28.9, -36.9
GREEN
20 15 Sep 2018 06:00 Tropical storm 93 50000 people no people 36, -34.3 Portugal
GREEN
20 16 Sep 2018 06:00 Tropical storm 93 4500 people no people 41, -28.5
GREEN
20 17 Sep 2018 06:00 Tropical storm 93 no people no people 45.5, -19
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

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

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.

...

StormSurge

0.2 m

The maximum Storm surge height is  1.1m in Llansamlet, United Kingdom. This height is estimated for 18 Sep 2018 00:00 UTC .

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 (3936 locations). Calculation based on advisory number 37 of 16 Sep 2018 15:00:00 UTC. (Simulation using 0.5 minute resolution)

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