Rosanna Climate Risk Profile
Rosanna, a suburb in Melbourne's northeast, faces moderate climate risks, primarily driven by increasing heatwave intensity and a significant flood risk due to its proximity to the Yarra River. While bushfire risk is lower, adaptation is crucial for resilience.
Overall Risk Score
Confidence: Medium
Hazard Breakdown
Climate Hazard Breakdown for Rosanna
Flood
Rosanna faces a moderate to high risk of flash flooding and riverine inundation due to its proximity to the Yarra River and its tributaries, coupled with low-lying areas.
Key drivers:
- ·Increased rainfall intensity
- ·Urbanisation and impervious surfaces
Bushfire
While not directly bordering major bushland, Rosanna has some proximity to vegetated areas and parks, posing a low to moderate bushfire risk, particularly during extreme weather events.
Key drivers:
- ·Proximity to parklands
- ·Dry vegetation conditions
Heat
Rosanna experiences significant heat stress due to its urban environment, limited tree canopy in some areas, and a high number of heatwave events.
Key drivers:
- ·Urban Heat Island effect
- ·Increased frequency and intensity of heatwaves
Coastal
Rosanna is located inland and is not directly exposed to coastal erosion or sea-level rise risks.
Wind
Moderate wind risk — cold fronts and gusty winds
Storm
Moderate storm risk — severe thunderstorms
Social
Moderate social stability
Energy
Moderate energy costs — heating and cooling needs
In-Depth Climate Risk Guides for Rosanna
Property buying guide with climate risk assessment
Flood zone mapping, historical events, and projections
BAL assessment, vegetation proximity, and fire history
Multi-hazard safety assessment to 2050
Severe weather, hail, and wind risk analysis
Extreme heat days, urban heat island, and cooling costs
Premium estimates and insurance availability
Climate-adjusted property investment analysis
Detailed Hazard Analysis
heat Risk
Rosanna experiences significant heat stress due to its urban environment, limited tree canopy in some areas, and a high number of heatwave events.
Primary Drivers
- ·Urban Heat Island effect
- ·Increased frequency and intensity of heatwaves
- ·Limited green space in developed areas
Projections (RCP 4.5)
2030
7.8
2050
8.5
flood Risk
Rosanna faces a moderate to high risk of flash flooding and riverine inundation due to its proximity to the Yarra River and its tributaries, coupled with low-lying areas.
Primary Drivers
- ·Increased rainfall intensity
- ·Urbanisation and impervious surfaces
- ·Potential for river overflow
Projections (RCP 4.5)
2030
7.2
2050
8.0
coastal Risk
Rosanna is located inland and is not directly exposed to coastal erosion or sea-level rise risks.
Projections (RCP 4.5)
2030
1.0
2050
1.0
bushfire Risk
While not directly bordering major bushland, Rosanna has some proximity to vegetated areas and parks, posing a low to moderate bushfire risk, particularly during extreme weather events.
Primary Drivers
- ·Proximity to parklands
- ·Dry vegetation conditions
Projections (RCP 4.5)
2030
3.5
2050
4.0
What This Means for Property Owners
Insurance Outlook
Premiums may increase for properties in known flood zones or those with higher bushfire risk ratings. Heat-related damage is also a growing concern.
Price Impact
Properties with demonstrated resilience to heat and flood may command a premium. Conversely, properties in high-risk areas could see reduced demand or price stagnation.
Buyer Checklist
- 1.Review flood maps and historical flood data for the specific property.
- 2.Assess proximity to waterways and drainage systems.
- 3.Check for adequate tree canopy and shading around the property.
- 4.Understand local bushfire risk and preparedness measures.
- 5.Inquire about existing flood mitigation or cooling strategies.
Local Climate Evidence
Flood Evidence
- Nearest Waterway
- Yarra River
- Elevation Range
- 15-50 meters above sea level
- Flood Zone
- Areas adjacent to the Yarra River and its tributaries are identified as flood-prone.
Some older infrastructure may be more susceptible to flash flooding. Stormwater drainage capacity is a concern during extreme rainfall.
View council flood mapBushfire Evidence
- Distance to Bushland
- Within 1-2 km of several parklands and vegetated reserves.
- Planning Overlay
- Not within a designated Bushfire Prone Area overlay, but adjacent to some vegetated zones.
- Bushfire Prone Area
- No
Properties backing onto Banyule Flats Reserve or other parklands should maintain appropriate defensible space.
Heat Evidence
- Avg January Max Temp
- 26.5°C
- Heat Stress Days/Year
- 12 days
Tree canopy cover varies significantly across Rosanna, with older, established areas having more shade than newer developments. Increased use of air conditioning is common.
Coastal Evidence
- Distance to Coast
- 45 km
- Sea Level Rise Exposure
- None
- Erosion Risk
- None
Historical Climate Events
Significant flooding occurred along the Yarra River, impacting low-lying areas including parts of Rosanna and surrounding suburbs.
SourceSevere thunderstorms caused widespread flash flooding and damage across Melbourne, including localized flooding in Rosanna's lower-lying streets.
SourceA prolonged and intense heatwave affected Victoria, with temperatures soaring in Rosanna, leading to increased health alerts and strain on power infrastructure.
SourceHeavy rainfall led to flash flooding in several parts of Rosanna, particularly affecting areas with inadequate stormwater drainage.
SourceClimate Outlook to 2050
Projections based on CSIRO and BOM climate modelling. Scenario: RCP 4.5
| Hazard | Today | 2030 | 2050 |
|---|---|---|---|
| flood | 65 | 7.2(+0.7) | 7.7(+1.2) |
| bushfire | 30 | 3.2(+0.2) | 3.3(+0.3) |
| heat | 70 | 8.0(+1.0) | 8.8(+1.8) |
| coastal | 10 | 1.0 | 1.0 |
By 2030, Rosanna is projected to experience a noticeable increase in overall climate risk, primarily driven by more frequent and intense heatwaves. Flood risk will also slightly increase due to heavier rainfall events. Bushfire risk remains low but stable.
CSIRO Climate ProjectionsAdaptation Recommendations
Enhance Urban Green Infrastructure
Near-termIncrease tree planting and green spaces, particularly in heat-vulnerable areas, to mitigate the Urban Heat Island effect and improve stormwater absorption.
Est. cost: $$
Learn moreUpgrade Stormwater Drainage Systems
ImmediateInvest in upgrading and maintaining stormwater infrastructure to better cope with increased intensity of rainfall events and reduce flash flooding.
Est. cost: $$$
Learn morePromote Heatwave Preparedness
ImmediateDevelop and promote community awareness campaigns about heatwave risks, including identifying cool refuges and personal preparedness strategies.
Est. cost: $
Learn moreImplement Floodplain Management Plans
Near-termReview and update floodplain management plans, considering future climate projections, and implement measures such as permeable paving and flood-resilient building designs.
Est. cost: $$$
Learn moreDevelop Bushfire-Resilient Landscaping
Long-termEncourage residents living near parklands to adopt fire-resistant landscaping practices and maintain defensible space.
Est. cost: $
Learn moreAbout Rosanna's Climate Risk Profile
Rosanna, situated in Melbourne's inner northeast, presents a mixed climate risk profile for its residents. The suburb's overall rating is 'Medium', reflecting a combination of significant heat and flood vulnerabilities, balanced by lower risks from bushfire and coastal impacts.
The most pressing concern for Rosanna is the increasing intensity and frequency of heatwaves. As an established urban area, it experiences the Urban Heat Island effect, where built environments absorb and retain more heat. This is exacerbated by a variable distribution of tree canopy and green spaces, leading to higher ambient temperatures during summer months. Projections indicate a substantial increase in heat stress events, impacting public health and infrastructure.
Flood risk is another significant factor for Rosanna. The suburb lies within the catchment of the Yarra River and its tributaries, with some areas being low-lying. While major flood events are infrequent, flash flooding from intense rainfall and potential overflow from the Yarra pose a tangible threat to properties and infrastructure. The increasing intensity of rainfall events due to climate change amplifies this risk.
Bushfire risk in Rosanna is comparatively lower than in outer-lying suburbs. However, the presence of local parks and vegetated corridors means that the risk, though moderate, cannot be entirely dismissed, especially during prolonged dry periods and high fire danger days. Preparedness remains important for properties bordering these green spaces.
Coastal risks are negligible for Rosanna, given its inland location, far removed from the direct impacts of sea-level rise and coastal erosion. This aspect of climate risk does not pose a direct threat to the suburb.
Overall, Rosanna requires a focused approach to climate adaptation, prioritising heat resilience strategies and robust flood mitigation measures. Community awareness and preparedness for extreme weather events are key to ensuring the long-term safety and liveability of the suburb.
Data sources: Bureau of Meteorology (BOM) · CSIRO · Victorian State Emergency Service (SES) · Banyule City Council · Geoscience Australia
Local Government Resources
Banyule City Council
Frequently Asked Questions
What is the main flood risk in Rosanna?
The main flood risk in Rosanna stems from its proximity to the Yarra River and its tributaries, as well as the potential for flash flooding due to intense rainfall overwhelming stormwater systems in low-lying areas.
How will climate change affect heatwaves in Rosanna?
Climate change is projected to increase the frequency, intensity, and duration of heatwaves in Rosanna, leading to more frequent days of extreme heat and greater risk of heat-related illnesses.
Is Rosanna prone to bushfires?
Rosanna has a low to moderate bushfire risk. While not directly adjacent to large tracts of dense bushland, properties near local parks and vegetated areas should remain vigilant during high fire danger periods.
What can I do to protect my property from flooding in Rosanna?
Consider installing flood barriers, ensuring stormwater drains are clear, elevating essential services, and checking your home insurance policy. For properties near the Yarra, consult Banyule Council's flood information.
Are there specific areas in Rosanna more affected by heat?
Areas with less tree canopy cover and a higher density of buildings and paved surfaces tend to experience higher temperatures due to the Urban Heat Island effect. Newer developments may have less established shade.
Where can I find official flood information for Rosanna?
Official flood information, including flood maps for Rosanna, can be found on the Banyule City Council website and through the Victorian State Emergency Service (SES).
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