Storm Risk in Lewisham, TAS: 2026 Assessment
Storm Risk Score
2.8/10Moderate storm risk — westerly wind storms and occasional severe weather
Key Facts
- Storm Risk
- Moderate storm risk — westerly wind storms and occasional severe weather
- Trend
- stable
- Suburb
- Lewisham, TAS
- Overall Risk
- Medium
- Postcode
- 7173
- Highest high-risk exposure
- 7.5% of land (surface flood)
Storm Risk Analysis
Lewisham, Tasmania, has a moderate storm risk profile. This includes exposure to severe thunderstorms, hail, damaging winds, and — in tropical regions — cyclone impacts. The applicable wind region classification under AS/NZS 1170.2 influences building design standards for Lewisham.
Severe thunderstorms affecting Lewisham can produce damaging wind gusts, large hail, and intense rainfall. The Bureau of Meteorology issues severe weather warnings for Tasmania, and historical storm data helps characterise the frequency and intensity of events in the region.
CSIRO research indicates that the intensity of severe convective storms — including those producing hail and damaging winds — may increase in a warming climate. For Lewisham property owners, this reinforces the value of storm-resistant building features and comprehensive insurance.
ClimateNest provides address-level storm risk reports for Lewisham including wind zone classification, hail risk probability, and property-specific mitigation recommendations based on your building characteristics.
Lewisham sits within ClimateNest's suburb-level hazard model for severe storm risk. 0% of the suburb's land area is mapped in high-risk severe storm zones and 90.1% in moderate-risk zones, based on the national hazard overlay. Exposure at this scale varies street by street, which is why an address-level check matters before you buy or insure a specific property in Lewisham.
Lewisham (postcode 7173) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are surface flood (7.5% of land in high-risk zones), extreme wind (6.3% of land in high-risk zones), riverine flood (4.1% of land in high-risk zones). Exposure is not uniform across Lewisham — individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.
Local Hazard Evidence
Historical Events
A severe storm caused localized flooding and power outages in Lewisham.
Adaptation & Mitigation Actions
Improve stormwater drainage infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce the risk of flooding.
Est. cost: Medium
Increase green spaces and tree canopy
Near-termPlant more trees and create green spaces to reduce the urban heat island effect and provide shade during heatwaves.
Est. cost: Low
Develop a community heatwave plan
ImmediateCreate a plan to support vulnerable residents during heatwaves, including cooling centers and outreach programs.
Est. cost: Low
Promote water-sensitive urban design
Long-termImplement water-sensitive urban design principles to reduce stormwater runoff and improve water quality.
Est. cost: Medium
Council & Emergency Services
Explore Lewisham Risk Reports
View other climate risk assessments for Lewisham:
Frequently Asked Questions
Is Lewisham prone to hailstorms?
Hail risk in Lewisham depends on the frequency of severe thunderstorm activity in the Tasmania region. BOM tracks severe storm events including hail. Property-specific risk depends on roof design, building orientation, and local storm patterns.
What wind rating applies to buildings in Lewisham?
Under AS/NZS 1170.2, properties in Lewisham are assigned a wind region classification. This rating determines structural design requirements for new buildings. Check with ClimateNest or a structural engineer for your property's classification.
Does storm risk affect insurance premiums in Lewisham?
Yes, storm damage — including wind, hail, and rain ingress — is one of the most common insurance claims in Australia. Properties in higher wind zones or with greater hail exposure may face higher premiums or specific policy conditions.
What storm mitigation measures should Lewisham property owners consider?
Storm mitigation includes impact-resistant roofing, cyclone-rated fixings where required, window and door shutters, regular roof and gutter maintenance, securing outdoor items, and ensuring compliance with current wind load standards under the National Construction Code.
What share of Lewisham is exposed to high surface flood risk?
ClimateNest's hazard overlay maps 7.5% of Lewisham in high-risk zones for surface flood, with a further 82.4% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.
Is Lewisham Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Lewisham, Tasmania, covering flood, bushfire, sea level rise and more.
What A$69 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections