Climate Risk in Main Arm, New South Wales

Main Arm, New South Wales· 2482
Medium Risk
Updated May 2026

Main Arm is a suburb in New South Wales that faces moderate climate risks, primarily from flooding and bushfires. The risk is projected to increase in the future due to climate change. Residents should take steps to prepare for these hazards.

Overall Risk Score

58/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.5
Bushfire
7.0
Heat
4.5
Coastal
1.0

Climate Hazard Breakdown for Main Arm

increasing

Flood

65/100

Main Arm faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

Key drivers:

  • ·Increased rainfall intensity
  • ·Urban development
increasing

Bushfire

70/100

The area surrounding Main Arm has a high bushfire risk due to the presence of dense vegetation. Hot, dry conditions and strong winds can exacerbate the risk.

Key drivers:

  • ·Drier conditions
  • ·Increased fuel load
increasing

Heat

45/100

Main Arm experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected in the future.

Key drivers:

  • ·Climate change
  • ·Urban heat island effect
stable

Coastal

10/100

Main Arm has a low coastal risk due to its inland location. Sea level rise and coastal erosion are not significant threats.

Key drivers:

  • ·Distance from coast
stable

Wind

28/100

Moderate wind risk — East Coast Lows and gust fronts

stable

Storm

39/100

Moderate storm risk — severe thunderstorms and hail

stable

Social

21/100

Moderate social stability — mixed urban density

increasing

Energy

35/100

Moderate energy costs — climate-driven cooling demand

In-Depth Climate Risk Guides for Main Arm

Detailed Hazard Analysis

heat Risk

45/100

Main Arm experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected in the future.

Primary Drivers

  • ·Climate change
  • ·Urban heat island effect

Projections (RCP8.5)

2030

5.0

2050

5.5

Data source

flood Risk

65/100

Main Arm faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Urban development
  • ·Climate change

Projections (RCP8.5)

2030

7.0

2050

7.5

Data source

coastal Risk

10/100

Main Arm has a low coastal risk due to its inland location. Sea level rise and coastal erosion are not significant threats.

Primary Drivers

  • ·Distance from coast

Projections (RCP8.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

70/100

The area surrounding Main Arm has a high bushfire risk due to the presence of dense vegetation. Hot, dry conditions and strong winds can exacerbate the risk.

Primary Drivers

  • ·Drier conditions
  • ·Increased fuel load
  • ·Climate change

Projections (RCP8.5)

2030

7.5

2050

8.0

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums may increase due to flood and bushfire risk.

Price Impact

Property values may be affected by increasing climate risks.

Buyer Checklist

  • 1.Check flood and bushfire risk maps
  • 2.Assess property's vulnerability to climate hazards
  • 3.Obtain adequate insurance coverage
  • 4.Develop an emergency plan

Local Climate Evidence

Flood Evidence

Nearest Waterway
Brunswick River
Elevation Range
10-50 meters
Flood Zone
Partially within flood zone

Historical flood data indicates inundation in low-lying areas.

View council flood map

Bushfire Evidence

Distance to Bushland
Adjacent to bushland
Planning Overlay
RFS Bush Fire Prone Land
Bushfire Prone Area
Yes

Vegetation management is crucial to reduce bushfire risk.

Heat Evidence

Avg January Max Temp
30.5°C
Heat Stress Days/Year
3 days

Elderly residents are particularly vulnerable during heatwaves.

Coastal Evidence

Distance to Coast
15 km
Sea Level Rise Exposure
Low
Erosion Risk
Low

Historical Climate Events

2017
floodModerate

Major flooding occurred in the Brunswick River, impacting low-lying areas of Main Arm.

Source
2019
bushfireModerate

Bushfires in the region caused smoke haze and elevated fire danger in Main Arm.

Source
2020
floodMinor

Localized flooding occurred due to heavy rainfall.

Source
2023
floodMajor

Significant flooding event impacted Main Arm, causing property damage and road closures.

Source

Climate Outlook to 2050

Projections based on CSIRO and BOM climate modelling. Scenario: RCP8.5

HazardToday20302050
flood656.8(+0.3)7.2(+0.7)
bushfire707.4(+0.4)7.8(+0.8)
heat454.7(+0.2)5.0(+0.5)
coastal101.01.0

By 2030, Main Arm is projected to experience a moderate increase in overall climate risk, with notable increases in flood and bushfire risks due to more extreme weather events.

CSIRO Climate Projections

Adaptation Recommendations

Improve Flood Defenses

Near-term

Construct levees and improve drainage systems to reduce flood risk.

Est. cost: High

Learn more

Bushfire Mitigation

Immediate

Implement vegetation management programs and create firebreaks to reduce bushfire risk.

Est. cost: Medium

Learn more

Heatwave Preparedness

Near-term

Establish cooling centers and provide public education on heatwave safety.

Est. cost: Low

Learn more

Community Education

Long-term

Raise awareness about climate risks and adaptation measures through community workshops and outreach programs.

Est. cost: Low

Learn more

About Main Arm's Climate Risk Profile

Main Arm, located in New South Wales, is susceptible to several climate-related risks. The primary concerns are flooding and bushfires, which pose a threat to property and safety.

Flooding is a significant risk due to the suburb's proximity to waterways. Intense rainfall events can cause rivers to overflow and lead to flash flooding. Climate change is expected to increase the frequency and intensity of these events.

Bushfires are another major concern, particularly during the hot, dry summer months. The surrounding vegetation provides ample fuel for fires, and strong winds can quickly spread flames. Climate change is exacerbating the risk by creating drier conditions and longer fire seasons.

Heatwaves are also becoming more frequent and intense, posing a health risk to vulnerable populations. While coastal risks are relatively low due to the suburb's inland location, it's important to consider the broader impacts of climate change on the region.

Residents of Main Arm should take proactive steps to prepare for these climate risks. This includes developing emergency plans, maintaining their properties, and staying informed about weather conditions and warnings.

Data sources: BOM · CSIRO · NSW SES · NSW RFS

Local Government Resources

Frequently Asked Questions

What are the main climate risks in Main Arm?

The main climate risks in Main Arm are flooding and bushfires. The area is also susceptible to heatwaves.

How is climate change expected to impact Main Arm?

Climate change is expected to increase the frequency and intensity of flooding, bushfires, and heatwaves in Main Arm.

What can I do to prepare for climate risks in Main Arm?

You can prepare by developing an emergency plan, maintaining your property, and staying informed about weather conditions and warnings.

Where can I find more information about climate risks in Main Arm?

You can find more information on the NSW SES, NSW RFS, and CSIRO websites.

Is my property in Main Arm at risk of flooding?

Parts of Main Arm are located in flood-prone areas. Check with the local council for flood maps and information.

Get your property's risk report

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What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections