Overall Green alert Tropical Cyclone for FLORENCE-18
in United States
31 Aug 2018 03 UTC
click on to select bulletin time
GDACS
Impact Single TC
Impact all weather systems in the area

Impact

Tropical Cyclone FLORENCE-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
Exposed population 1.5 million in Category 1 or higher
Maximum wind speed 241 km/h
Maximum storm surge
Vulnerability Low (United States)

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 120 km/h 0.0 m n.a. 0.5
GDACS Overall 241 km/h 0.0 m n.a. 0.5

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

Wind

120 km/h Current Max.

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Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 30 Aug 2018 15:00 120 50 thousand No people Cape Verde
Green 2 30 Aug 2018 21:00 120 40 thousand No people Cape Verde
Green 3 31 Aug 2018 03:00 120 7 thousand No people

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 30 Aug 2018 15:00 Tropical depression 46 no people no people 12.9, -18.4
GREEN
2 30 Aug 2018 21:00 Tropical depression 46 no people no people 12.9, -19.4
GREEN
3 31 Aug 2018 03:00 Tropical depression 56 no people no people 13.2, -20.9
GREEN
3 31 Aug 2018 12:00 Tropical depression 56 6500 people no people 13.7, -22.3 Cape Verde
GREEN
3 01 Sep 2018 00:00 Tropical storm 74 6500 people no people 14.5, -24.9 Cape Verde
GREEN
3 01 Sep 2018 12:00 Tropical storm 83 no people no people 15.3, -27.7
GREEN
3 02 Sep 2018 00:00 Tropical storm 93 no people no people 16, -30.4
GREEN
3 03 Sep 2018 00:00 Tropical storm 111 no people no people 17.5, -35.5
GREEN
3 04 Sep 2018 00:00 Category 1 120 no people no people 19, -40
GREEN
3 05 Sep 2018 00:00 Category 1 120 no people no people 21.5, -44
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

Countries

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Provinces

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Populated places

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Critical infrastructure

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

Airports

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Ports

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Dams

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Nuclear plants

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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 maximum Storm surge height is  2.0m in Stacy, United States. This height is estimated for 14 Sep 2018 06:00 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 (557 locations). Calculation based on advisory number 59 of 14 Sep 2018 03:00:00 UTC. (Simulation using 0.5 minute resolution)

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