Authors / CoAuthors
Arthur, C. | Allen, N.
Abstract
<div>Severe TC Ilsa crossed the Western Australian coastline approximately 120 km east of Port Hedland on Thursday 13 April 2023. Observations at Bedout Island were the highest wind speeds ever recorded on standard BoM instruments (gust wind speed of 289 km/h). In anticipation of the TC, residents in the mining township of Telfer were evacuated, along with a small number of evacuees in other townships (Marble Bar, South Hedland and Nullagine). As a category 5 TC, the threat of widespread destruction was front of mind for emergency managers in Western Australia.</div><div><br></div><div>Geoscience Australia (GA) has established the National Hazard Impact and Risk Service (NHIRS), which provides quantitative modelled impact forecast information for tropical cyclones, large-scale wind events and earthquakes in Australia. NHIRS has been used by the Department of Fire and Emergency Services (DFES) Intelligence Unit to support operational resource planning for TC events.</div><div><br></div><div>In TC Ilsa, DFES Intelligence (and GA) officers reviewed the impact predictions in the days leading up to landfall. Genuine questions were asked about the level of predicted damage, which was almost negligible across northern WA in spite of the predicted landfall intensity. Why was that the case? Was the service operating as expected? This paper highlights the challenge of educating users on the utility of impact forecasting products and communicating the components that are integrated in the impact forecast. Presented at the 30th Conference of the Australian Meteorological and Oceanographic Society (AMOS) 2024
Product Type
document
eCat Id
148709
Contact for the resource
Resource provider
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Point of contact
Keywords
- ( Project )
-
- tropical cyclone
- ( Project )
-
- impacts
-
- tropical cyclone
-
- impacts
-
- hazard
- theme.ANZRC Fields of Research.rdf
-
- Natural Hazards
-
- Published_External
Publication Date
2024-08-05T02:22:25
Creation Date
2023-08-25T12:00:00
Security Constraints
Legal Constraints
Status
completed
Purpose
Abstract submitted to the Australian Meteorological and Oceanographic Society (AMOS) 2024 Conference
Maintenance Information
notPlanned
Topic Category
geoscientificInformation
Series Information
30th Conference of the Australian Meteorological and Oceanographic Society (AMOS) 5-9 February 2024, Canberra Australia Session 36 Value chains for Early Warning Systems
Lineage
<div>Developed from event experiences of the Department of Fire and Emergency Services Western Australia and Geoscience Australia staff during Tropical Cyclone Ilsa (April 2023), using the National Hazard Impact and Risk Service for impact forecasts.</div>
Parent Information
Extents
[-54.75, -9.2402, 112.92, 159.11]
Reference System
Spatial Resolution
Service Information
Associations
Source Information