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The Waikato Weather Bomb: Understanding the impact

Executive Summary

1. Introduction

2. Losses vs. flooding type and depth

3. Economic Impact Assessment

4. Heavy Rain Warnings

5. Weather Forecasting

6. Relating Hazard Knowledge & Risk Perception to Impacts and Readiness

7. Conclusions

8. References

Acknowledgements

Appendix 1 MetService Severe Weather Warning Criteria

Appendix 2 Demographic data

Appendix 3 Residential Economic Impacts

Appendix 4 Business Economic Impacts

Appendix 5 Social data

Appendix 6 Domestic survey form

Appendix 7 Business survey form

Appendix 8 EQC insurance data

Appendix 9 AMI insurance data

Appendix 10 NZIER CGE Model Specification

Appendix 11 Residential questionnaire answers to free-response questions

Appendix 12 Business questionnaire answers to free-response questions

Appendix 3 Residential Economic Impacts

Table A3.1 Home, contents or any other household possessions suffered from flood damage

Table A3.2 Parts of property flooded (of those with property damaged)

Table A3.3 Percent of houses with each type of room flooded, and mean number of flooded rooms of each type in the house (of those with property damaged)

Table A3.4 Maximum depth of flooding (per room) in rooms of each type in the house (of those with property damaged)

Each of these ranges from 1cm up to at least 7 m deep – this is likely an error due to a few respondents filling in their depths in mm.

Table A3-5 Household insured against flooding damage (of those with property damaged)

Table A3.6 Total amount paid out (if any) by insurance company(s)

View total amount paid out (if any) by insurance company(s) (large table)

Table A3.7 Households bearing any financial cost not covered by insurance

Table A3-8 Total expenditure not covered by insurance company(s)

View total expenditure not covered by insurance company(s) (large table)

Table A3.9 Time taken to get home back to normal (Days)

Months converted to 30 days, years converted to 365 days

Table A3-10 Percent of households where householder(s) had to leave the house during the flood

Table A3-11 Time taken before the whole household could live in the property again (of those households where householder(s) had to leave) (days)

Months converted to 30 days, Years converted to 365 days

Table A3-12 Levels of assistance from institutions and people that helped or supported households during and/or after a flood episode.

View levels of assistance from institutions and people that helped or supported households during and/or after a flood episode (large table)

Table A3.13 Time in total members of household spent responding to the flood and/or helping with the cleanup? (e.g. 3 people helping for 1 day each equals 3 days) (hours)

View time in total members of household spent responding to the flood and/or helping with the cleanup? (e.g. 3 people helping for 1 day each equals 3 days) (hours)(large table)

Table A3-14 Number of people capable of helping in household

Table A3.15 Amount spent by households which had undertaken these flood prevention measures before the weather bomb event

View amount spent by households which had undertaken these flood prevention measures before the weather bomb event (large table)

Table A3.16 Amount spent by households which undertook these flood prevention measures after the weather bomb event

View amount spent by households which undertook these flood prevention measures after the weather bomb event (large table)