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Showing posts with label Extreme Weather. Show all posts
Showing posts with label Extreme Weather. Show all posts

Monday, 19 December 2016

Prepare for Disasters and Severe Weather


(Mazdak Moini, VP Commercial Lines & Reinsurance Aviva Canada Inc.)

Aviva Canada, one of the country’s leading property and casualty insurers, is honored to serve over three million customers across Canada and actively support the communities where we work and live.

As one of the leading insurers, we see the devastating impact of severe weather and natural disasters firsthand. According to the Insurance Bureau of Canada’s 2015 Fact Book (page 16), for the past six consecutive years, insured losses caused by large natural catastrophes have been around or over $1 billion. By comparison, insured losses averaged $400 million a year over the 25-year period from 1983 to 2008.

We are committed to preventing damage before it occurs and helping Canadians prepare for unforeseen weather events and natural disasters. That’s why we launched Plan & Protect, a free emergency preparedness app, in partnership with the Institute forCatastrophic Loss Reduction (ICLR).

The app is available to all Canadians, and for every download, we’re donating $5 to the Canadian Red Cross to help communities affected by disasters*

Plan & Protect app features

  • Free to download from the App Store and Google Play.
  • Available in English and French.
  • Access vital information about what to do before, during and after floods, earthquakes, wildfires, winter storms and severe wind.
  • Receive a personalized risk report specific to your location, and customized list of items to include in your 72-hour emergency kit.
  • Get notifications tailored to your emergency needs.
  • Securely store your home and auto insurance information at your fingertips.
  • All content is preloaded and accessible without internet connection. 
You can help us continue to be there for Canadians from coast to coast when they need it most by sharing the app with your colleagues, family and friends!

* For the first 10,000 downloads.

This blog post has been written by Mazdak Moini, who is vice president of Commercial Lines & Reinsurance at Aviva Canada Inc. Mazdak is responsible for leading Canadian and Group-wide strategic initiatives relating to underwriting, pricing, product and capital management, and providing risk management oversight to these activities. 

Mazdak Moini is a panelist/moderator at CatIQ’s Canadian Catastrophe Conference (C4 2017) on the Terrorism Risk: International & Canadian Perspectives and the Disaster Assistance sessions during the conference.

Friday, 14 October 2016

Hurricane Matthew: The Record Breaker

Joanne Kennell, Meteorologist, CatIQ

The destruction ensued by Hurricane Matthew and its remnants, not only in Canada, but in Haiti, Cuba, the Bahamas, the Dominican Republic, and the United States, is heartbreaking. Lives were lost and people’s homes and possessions have been damaged or are in complete ruins. Our thoughts and prayers go out to everyone who is suffering because of this record-breaking storm.

Hurricane Matthew (2016-10-Cat-0081) began as a tropical wave the originated off the west coast of Africa and passed south of Cape Verde – a section of islands located 570 kilometers off the coast of Africa and is a region known for spawning long-lived tropical cyclones. What made Matthew such a record breaker was its intensity and endurance (Erdman, 2016). Not only was Matthew the longest lived Category 4-5 Hurricane on the Saffir-Simpson Hurricane Wind Scale in October in the Atlantic Basin, it was also the southernmost Category 5 Hurricane in the Atlantic Basin.

Tropical cyclones and hurricanes require a set of specific ingredients to form, but generally they need:
1)      A pre-existing disturbance such as a tropical wave
2)      Warm sea-surface temperatures of at least 26oC
3)      At least 5 degrees south or 5 degrees south of the equator for the Coriolis Force       to take effect
4)      Lots of moisture in the lower and mid-levels of the atmosphere
5)      Weak vertical wind shear – a change in wind speed and/or direction with height
6)      Atmospheric instability

According to Dr. Philip Klotzbach, a meteorologist at CSU who specializes in Atlantic Basin seasonal hurricane forecasts, Matthew’s perseverance in the Atlantic Basin was due to a relative lack of wind shear and minimal dry air – exactly two of the key ingredients needed for tropical storm formation. But Matthew did not only break a nine-year streak without an Atlantic Basin Category 5 hurricane, it was also categorized as a Category 5 very far south and close to the equator. On September 30th, just before midnight EDT, Matthew transitioned into a Category 5 hurricane with its centre at 13.3 degrees north.

However, what made Matthew such a record breaker, also made it extremely destructive and devastating. Although Matthew was no longer a hurricane as it impacted Canada’s Maritime Provinces, its leftover moisture, which was absorbed into a frontal zone, intensified a low-pressure system that inundated Nova Scotia and Newfoundland with heavy rains and gusty winds. According to Environment Canada, the town of Sydney, Nova Scotia, received 224.8 mm of rainfall and Gander, NL, received up to 124 mm of rain – both of which were one day record-breaking rainfall totals in each city.

Washed out Road in Buchans, Newfoundland 
Photo credit: Tammy @tammyharris96/Twitter

Unfortunately, all of this rain led to significant flooding in Sydney, including flooded homes and businesses, and many roads and bridges were washed out in Newfoundland. States of emergencies were declared in some Nova Scotia and Newfoundland communities, including Sydney, as well as Lewisporte, Little Burnt Bay, and St. Alban, Newfoundland.

Although the cost of this catastrophic event is unknown, it is expected to exceed CatIQ’s Catastrophe (CAT) threshold of $25M (insured industry loss). But how does this event compare to previous, similar incidents in the past?

Looking back to Hurricane Earl (2010), which did not meet the $25M threshold, but rather industry losses were estimated between $10M and $25M, it also originated from the Cape Verde region. In fact, Earl (2010-09-NE-0090) reached a peak intensity of a Category 4 hurricane and even made landfall near Liverpool, Nova Scotia as a Category 1 hurricane (Cangiolosi, 2011).  So why was Earl’s damage not as extensive like with Hurricane Matthew? Earl was a weakening hurricane at the time, and it was relatively fast moving, so there was not enough time to severely flood cities with massive amounts of rain. However, Matthew’s moisture acted as fuel to intensify a very slow-moving often stalled, low-pressure system. This resulted in unprecedented amounts of rain to fall in both Nova Scotia and Newfoundland.

Track of Hurricane Earl (2010)
Photo credit: Anhamirak and Cyclonebiskit/Wikipedia

Finally, let’s take a look at Hurricane Arthur (2014). Arthur (2014-07-Cat-0058) became an extratropical cyclone on July 5th while over the Bay of Fundy (Berg, 2015), which is located just west of Nova Scotia. Arthur continued to travel northeast toward the Gulf of St. Lawrence while producing strong winds and intense rains over Nova Scotia, Prince Edward Island, and New Brunswick. The system then reached eastern Labrador and Newfoundland. Arthur did in fact reach CatIQ’s Catastrophe (CAT) threshold of $25M by causing localized flooding, damaging properties and structures, downing trees, and causing massive power outages. What Arthur and Matthew had in common is the fact that their remnants of moisture were enhanced along a frontal boundary, which allowed for prolonged periods of rain and strong winds.

Downed Tree of Power Lines in Nova Scotia
Photo credit: Ken Stronach @kstronach24/Twitter

Although every catastrophic and notable event is unique, we can sometimes look for patterns in past events to try to determine potential damages of future, similar systems. Will Hurricane Nicole - who is now the longest-lived Atlantic named storm forming this late in the year - impact Canada as intensely as Matthew? No, it won’t. Parts of Atlantic Canada, predominately eastern Newfoundland including the southern Grand Banks, will only see some ocean swells and gale force winds this weekend. Thank goodness.

References:

Berg, Robbie. 2015. Tropical Cyclone Report: Hurricane Arthur. National Hurricane Center. URL: http://www.nhc.noaa.gov/data/tcr/AL012014_Arthur.pdf

Cangialosi, John P. 2011. Tropical Cyclone Report: Hurricane Earl. National Hurricane Center. URL: http://www.nhc.noaa.gov/data/tcr/AL072010_Earl.pdf


Erdman, Jon. 2016. Hurricane Matthew Shatters Record. Weather.com. URL: https://weather.com/storms/hurricane/news/hurricane-matthew-records-notables-2016

Friday, 16 September 2016

Average Annual Cost of Federal Disaster Assistance due to Weather Events

(Rod Story, Financial Advisor/Analyst, Financial Advisor-Analyst at the Parliamentary Budget Office)

The Disaster Financial Assistance Arrangements (DFAA) program, created in 1970, reimburses the provinces and individuals (via the province) for expenses and damages resulting from disasters, natural or manmade. The program shares costs with the provinces on an increasing proportion up to the level reached at $15 multiplied by a province’s population. Above this amount, the DFAA program pays 90 per cent of the costs.

For this report, PBO obtained historical DFAA payment data directly from Public Safety Canada (PSC) rather than using PSC’s public disaster database. The public database is missing some disaster payments and some other listed payments are incorrect due to payment changes not being updated in the database. Therefore, the DFAA numbers used in this report are not the same as those found in the disaster database.

As shown in Figure 1, over the past five years DFAA’s liabilities have increased substantially because of a number of weather events that have caused heavy damage. As a result, DFAA’s annual transfers to the provinces have been much higher than its nominal appropriation of $100 million (Figure 2).

It is important to note that when a disaster occurs, DFAA in general books the liability in the year of the disaster recognizing its financial obligation. Yet, the actual transfers to the provinces for disasters can take place upwards of eight years after the event. This explains the large estimated transfers shown in Figure 2 going out to fiscal year 2017-2018.

Figure 1: DFAA liabilities
Source: Public Safety

Figure 2: DFAA annual transfers
Source: Public Safety
Note: *Public Safety estimates

In the fiscal year 2012-2013, DFAA transferred $280 million to the provinces; by 2013-2014, this had increased to $1.02 billion and $305 million in 2014-2015. DFAA estimates its transfers resulting from previous events will be higher in subsequent years ($848 million in 2015-2016, $590 million in 2016-2017, and $580 million in 2017-2018).

This report estimates the expected additional average annual cost to the DFAA program resulting from anticipated weather events (floods, hurricanes, convective storms, and winter storms) over the next five years.

PBO used data from numerous sources, including the Insurance Bureau of Canada (IBC), DFAA, Swiss Re, and Risk Management Solutions Inc. (RMS), to determine its estimate. For losses due to hurricanes, convective storms and winter storms, PBO used estimates provided by RMS. For losses due to flooding, PBO used estimates from IBC. RMS had Canadian specific models for hurricanes, convective storms and winter storms. The IBC flood estimate used a Canadian specific flood model based on Canadian flood extent and flood risk.

PBO estimates that over the next five years, on average, DFAA can expect annual costs of $229 million per year because of hurricanes, convective storms and winter storms. Using the IBC estimate for flood losses, PBO estimates that on average, DFAA can expect annual costs of $673 million for floods. Therefore, the total annual costs to the DFAA for weather events are estimated to be $902 million.

The results are listed in Table 1 and Figure 3 below. It is important to stress that these values are averages; in any given year, the losses can be much higher or much lower.

Table 1: Estimated DFAA annual weather event costs
Sources: PBO; RMS; IBC; DFAA and Swiss Re

Therefore, based on the estimated annual DFAA payments for future weather event shown in Table 1, the DFAA will continue to require more than its nominal $100 million appropriation.

Table 1 also shows that the DFAA costs resulting from floods are the largest of the weather events at $673 million and represent 75 per cent of DFAA’s weather expenditures. This high value is partly due to the lack of flood insurance in Canada, as well as regulatory challenges in the Prairie Provinces. Over the past 10 years (2005-2014), Manitoba, Saskatchewan, and Alberta have accounted for 82 per cent of all DFAA weather event costs, almost all of which are a result of flooding.

The Prairie Provinces face regulatory challenges of reduced enforcement and compliance when floodplain management is the responsibility of municipalities.

Figure 3: Estimated DFAA annual weather event costs
Sources: PBO; RMS; IBC; DFAA and Swiss Re

Furthermore, Saskatchewan has unlicensed drainage of wetlands that increases peak flows during floods and Alberta appears to have inaccurate flood maps. Furthermore, in creating flood maps, Alberta does not take into account rising groundwater and debris floods on steep mountain creeks.

One last consideration is interprovincial co-ordination of flood management. This currently does not exist in Canada even though it has been shown to be effective at reducing damages in other countries. This is particularly important in the Prairie Provinces where rivers such as the Saskatchewan and its tributaries span all three provinces.

To read the full report, click here.

This blog post has been written by Rod Story, who is a Financial Advisor-Analyst on the Expenditure and Revenue Analysis team at the Parliamentary Budget Office (PBO). Rod has a PhD in Management (Finance) and an MBA from Carleton University as well as a BASc from the University of Waterloo.

Rod Story is a panelist at CatIQ’s Canadian Catastrophe Conference (C4 2017) on the Disaster Assistance session during the conference.




Tuesday, 24 November 2015

National Strategy for Disaster Resilience- Australia

Jim Abraham (Halifax, NS)

I just spent a three-week vacation in Australia and New Zealand.  Much of that time was visiting friends and colleagues from the Bureau of Meteorology and the New Zealand MetService, discussing the challenges and opportunities of ensuring the work that we do is relevant to the needs of society.

Extreme weather events are quite frequent in Australia; a topic frequented by my weather colleagues down there. During our visit, there were several severe weather outbreaks, accompanied by tornadoes and flash floods.  An anomalously warm spell in early October had resulted in earlier than normal moisture deficits, and the bushfire season was already underway. 

No surprise, that Australia to be extremely vulnerable to climate change and associated extreme weather events.  For example:
  •          A substantial proportion of the population resides in relatively few urban areas.  Cities like Melbourne and Sydney continue to grow rapidly
  •          Much of this same urban population is located relatively near the coast
  •          A substantial amount of their water resources and associated agricultural lands are within one large river basin (Murray-Darling)
During my conversations, I was particularly interested in any national coordination initiatives underway to help reduce these vulnerabilities.  Certainly the Bureau of Meteorology is examining a strategy that will allow it to address these challenges in a cost-effective way.  However, I was very interested in the fact that the Australian and New Zealand governments are cooperating on a National Strategy for Disaster Resilience: 



I was particularly pleased that this recognizes that all sectors of society need to work together, including business, all levels of government, NGO’s, academia and individuals.  The identified priority areas of action are areas that I feel are essential for us in Canada, especially establishment of partnerships and community engagement.  Furthermore, in Australia-New Zealand, there is a recognition that the importance of infrastructure investments.  Certainly, given our recently elected government’s priority on infrastructure, it would be nice to see appropriate investment that contributes to sustainability and resilience.  A recent report on the progress in implementing the strategy includes a number of case studies:  http://www.ag.gov.au/EmergencyManagement/About-us-emergency-management/Documents/NSDR-Progress-to-date.PDF 

I’ll be keeping in touch with folks to benefit from their learning and progress. I would like to see Canada take advantage of the efforts undertaken by our colleagues “Down-Under”, and develop our own Canadian National Disaster Resiliency Strategy.

This blog post has been written by Jim Abraham, Director, Canadian Climate Forum & former Director General of Weather Environmental Monitoring, Meteorological Service of Canada, Environment Canada. Jim is on CatIQ's Canadian Catastrophe Conference's 2016 Advisory Committee and will be speaking at two sessions during the conference.