Storm Risk in Number One, NSW: 2026 Assessment
Storm Risk Score
3.9/10Moderate storm risk — East Coast Lows bring severe weather including hail and damaging winds
Key Facts
- Storm Risk
- Moderate storm risk — East Coast Lows bring severe weather including hail and damaging winds
- Trend
- stable
- Suburb
- Number One, NSW
- Overall Risk
- Medium
- Postcode
- 2424
- Highest high-risk exposure
- 8.8% of land (bushfire)
Storm Risk Analysis
Number One, New South Wales, 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 Number One.
Severe thunderstorms affecting Number One can produce damaging wind gusts, large hail, and intense rainfall. The Bureau of Meteorology issues severe weather warnings for New South Wales, 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 Number One property owners, this reinforces the value of storm-resistant building features and comprehensive insurance.
ClimateNest provides address-level storm risk reports for Number One including wind zone classification, hail risk probability, and property-specific mitigation recommendations based on your building characteristics.
Number One 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 88.7% 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 Number One.
Number One (postcode 2424) 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 bushfire (8.8% of land in high-risk zones), surface flood (8.1% of land in high-risk zones), riverine flood (4.8% of land in high-risk zones). Exposure is not uniform across Number One — 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
Severe storm caused flash flooding and power outages in the suburb.
Adaptation & Mitigation Actions
Improve stormwater drainage
Near-termUpgrade stormwater infrastructure to handle increased rainfall intensity and reduce the risk of flooding.
Est. cost: Medium
Implement a heatwave action plan
ImmediateDevelop a plan to protect vulnerable populations during heatwaves, including cooling centers and community outreach programs.
Est. cost: Low
Strengthen coastal defenses
Long-termInvest in coastal protection measures, such as seawalls and beach nourishment, to mitigate the impacts of sea level rise and coastal erosion.
Est. cost: High
Bushfire hazard reduction
Near-termUndertake regular bushfire hazard reduction activities, such as clearing vegetation and creating firebreaks, to reduce the risk of bushfires.
Est. cost: Medium
Council & Emergency Services
Explore Number One Risk Reports
View other climate risk assessments for Number One:
Frequently Asked Questions
Is Number One prone to hailstorms?
Hail risk in Number One depends on the frequency of severe thunderstorm activity in the New South Wales 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 Number One?
Under AS/NZS 1170.2, properties in Number One 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 Number One?
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 Number One 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 Number One is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 8.8% of Number One in high-risk zones for bushfire, with a further 85.2% 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 Number One Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Number One, New South Wales, covering flood, bushfire, sea level rise and more.
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