The customer lodges by phone after two hours on hold. Water reached a metre through the house. The call handler, a surge contractor on their fourth day, records the basics. No photos are requested; there is no process for it at this volume. Somewhere a triage queue grows.

No assessor has attended; there are not enough assessors in the country for this event, and the roads were closed for the first fortnight anyway. The customer does what any family must: strips the sodden carpet and plasterboard, hires a skip, starts drying the house. The evidence of the loss — water lines, contents, the state of the roof and drains before remediation — goes to landfill with the carpet.

An assessor attends a cleaned, gutted shell and records what remains. The question that will decide the claim — flood inundation or long-term seepage and maintenance — is now a matter of inference, because the scene that would have answered it no longer exists.

A hydrology report is commissioned. The handful of hydrologists in the market are carrying thousands of files; the report, when it arrives, is generic to the postcode rather than specific to the house. The customer has rung eleven times and had three different handlers.

Declined: unable to establish storm-related inundation, maintenance exclusions cited. The customer disputes. The dispute body reads a file whose central evidence was never captured, notes the report cannot link cause to conclusion, and overturns the decline.

Paid. Plus the complaint, the rework, the accommodation costs of the delay, and a family that will tell the story for a decade.

Siemsen says that whilst insurers can staff up beforehand the real problem lies with evidence which unless collected at the time of the loss will lack relevance, be old and incomplete and without validated provenance. The whole FNOL process must allow policy holders to register the losses immediately, collect evidence before it is lost, fill in the gaps that are identified, prove its provenance from FNOL to settlement in imutable audited records that will satisfy the most rogorous questioning by regulators and litigators. Most importantly, maintain trust and support of customers.

Another factor to test soaring claims for flashflood losses is the adoption of digital agents since 2022 and which I have written extensively about in ‘Claim Multi-Agent and Automated Intelligence Platforms Promise Automation Benefits — But Read the Fine Print on Autonomy’^1. If you rely on agentic automated workflows and decisions you lay yourselves open to even worse outcomes.

Claims Management Systems (CMS) like Five Sigma and Wilbur that do include agents do so to augment claims teams and present them with timely, as complete as possible and proven evidence with scoring and help for those claims teams to make the right decisions and be able to uphold them throughout the life of the claim, however long the tail. 

Flash flooding does not just involve buildings, contents, plant and machinery, contents but also injury, loss of life, vehicles, business interruption, marine and airhulls; the list is long. You need a CMS that delivers for all lines of business and not just one. However complex. evidence and the ability to act on it is the fundamantal requirement for customers and insurers of all kinds. 

If your teams and systems were over-stressed during the last flooding and are still liable to overload then you need to pass the surge test that Siemsen helpfully provides using data from the last CAT event.