Overall Green alert Tropical Cyclone for OSCAR-18
in Iceland, Ireland, United Kingdom, Faroe Islands, Svalbard and Jan Mayen, Norway, Sweden
alertimage

Orange alert for storm surge impact based on GFS source

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.

This report is for advisory number 20 of tropical cyclone OSCAR-18 issued at 31 Oct 2018 21:00:00 (GDACS Event ID 1000525). However, the calculation for advisory number is not completed. Therefore, the latest available calculation is shown. All links, data, statistics and maps refer to the latest available calculation.

Summary

Population affected by cyclone-strength winds (>120km/h):No people affected
Saffir-Simpson Category: Category 1
Maximum sustained wind speed: 137 Km/h
Maximum Storm surge height is:  3.0m in Dorchester, Canada.

Storm surge

View animation and affected locations in an interactive map: open

Storm surge maximum height
Storm surge maximum height (Source: JRC)
Max windspeed
Max windspeed (Source: GFS)

Evolution

Legend
people affected <=10000
people affected >10000 and <100000
people affected >100000


Calculation Alert color Date (UTC) Wind speed Population affected
winds(>120km/h)
TS CAT. 1 CAT. 2 CAT. 3 CAT. 4 CAT. 5 Countries
1
GREEN
20181028.00 138 km/h (85 mph) No people affected
Canada, United States
2
GREEN
20181028.06 146 km/h (90 mph) No people affected
Canada, United States
3
GREEN
20181028.12 137 km/h (85 mph) No people affected
Canada

Affected locations

Date Name Country Alert Storm surge height (m)
30 Oct 2018 16:45:00 Dorchester Canada  3.0m
30 Oct 2018 16:45:00 Joggins Canada  3.0m
30 Oct 2018 16:45:00 Riverside Canada  2.7m
30 Oct 2018 16:30:00 Cape Enrage Canada  2.3m
30 Oct 2018 16:30:00 Apple River Canada  2.3m
30 Oct 2018 16:15:00 Alma Canada  1.9m
30 Oct 2018 15:45:00 Scots Bay Canada  1.9m
30 Oct 2018 15:45:00 Parrsboro Canada  1.9m
30 Oct 2018 15:45:00 Port Greville Canada  1.9m
30 Oct 2018 15:45:00 Hall Harbour Canada  1.9m
30 Oct 2018 15:45:00 Canning Canada  1.9m
30 Oct 2018 15:45:00 Kingsport Canada  1.9m
30 Oct 2018 15:45:00 Spencer Island Canada  1.8m
30 Oct 2018 15:45:00 Advocate Harbour Canada  1.8m
Locations affected by Storm surge (15 of 1831)
Calculation based on advisory number of 28 Oct 2018 06:00.
(Simulation using minute resolution)

See full locations list (RSS)

More information

The atmospheric forcing included in the storm surge model are the pressure drop and the wind-water friction. The effects of the short waves induced by the wind (wave setup) and the precipitations are not yet implemented in the model.

  • Interactive map: open

For a full list of available products related to this event, please refer to the GDACS Resources page.