Flood Risk and Vulnerability Analysis Project - Atlantic Climate ...

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a Category 2 Hurricane making landfall in Newfoundland should be considered an
event with a return period of about 50 years;
a Category 3 Hurricane making landfall in Newfoundland is likely a somewhat less
than a 1 in 100 year event, perhaps occurring before 2080 (only NL Marine areas
have been affected by such storms to date);
Given the extreme conditions that such storms produce the following are recommended:
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A second opinion be obtained, either from academia or from Environment Canada,
concerning the threat that Hurricanes pose to Newfoundland;
Depending on the outcome of the above, commission additional analyses to more
precisely estimate the high water levels that would result in specific coastal
communities since not all would be exposed, due to their orientation and other
factors, to the full storm surge and wave effects estimated at Figure 3-28;
Since it is possible that such intense Hurricanes could also occur earlier in the
century, greater emergency preparedness and planning for the most exposed
communities should be considered.
1. From Batterson and Liverman.
2. From Hurricane archive.
3. From Hurricane archive.
4. Canadian Hydrographic Service, Come by Chance, NL, Tides - Sept. 2010.
TA1112733 page 87