Overall Green alert Tropical Cyclone for CHRIS-18
in Canada


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

Meteorological source GDACS (NOAA)
Exposed countries Canada
Exposed population 3 thousand in Category 1 or higher
Maximum wind speed 148 km/h
Maximum storm surge 0.5 m (10 Jul 21:00 UTC)
Vulnerability Low (Canada)


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 130 km/h 0.5 m n.a. 0.5
GDACS Overall 148 km/h 0.5 m n.a. 0.5

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


130 km/h Current

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Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm
Population in
Cat. 1 or higher
Green 1 06 Jul 2018 21:00 130 No people No people

Bulletin Timeline

Alert Date (UTC) Category Max winds
Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon) Countries
1 06 Jul 2018 21:00 Tropical depression 46 no people no people 32.2, -73.8
1 07 Jul 2018 06:00 Tropical depression 56 no people no people 32.9, -74.3
1 07 Jul 2018 18:00 Tropical storm 65 no people no people 33.7, -74.5
1 08 Jul 2018 06:00 Tropical storm 74 no people no people 34, -74.3
1 08 Jul 2018 18:00 Tropical storm 83 no people no people 34, -74
1 09 Jul 2018 18:00 Tropical storm 93 no people no people 33.5, -73.7
1 10 Jul 2018 18:00 Category 1 120 no people no people 33.5, -73.7
1 11 Jul 2018 18:00 Category 1 130 no people no people 36.5, -69.5
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.

Exposed population


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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.


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Nuclear plants

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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.



0.5 m

The maximum Storm surge height is  0.3m in Wallace, Canada. This height is estimated for 13 Jul 2018 03:00 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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 (355 locations). Calculation based on advisory number 14 of 10 Jul 2018 03:00:00 UTC. (Simulation using 0.5 minute resolution)

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