This article is by Jonathan Jackson, CEO, Previsico
Flash floods are fast, brutal, and becoming more frequent due to climate change. Intense rainfall in a matter of minutes can overwhelm drainage systems, sever roads, and damage critical infrastructure, causing devastating impacts for people, businesses, and insurers.
Yet many organisations still rely on chance at worst or, at best, fragmented processes to manage flood risk. If these businesses are to be prepared for an increasingly uncertain future, flood resilience must become more intelligent, connected, and responsive, integrating real-time forecasting, early warning systems, and cross-functional collaboration.
The unpredictability of flash floods
Flash floods can occur in areas traditionally viewed as low risk. In urban environments, just half an hour of heavy rainfall can lead to serious surface water flooding, especially where drainage is under strain or poorly maintained. Recent floods in Texas, Central Europe, and Spain underscore how rapidly these situations can escalate and how communication failures can worsen outcomes. In many instances, warnings existed but failed to reach the right people or were not understood in time.
Real-world examples emphasise the gap between forecast and action. In rural Texas, residents missed alerts due to poor local systems, resulting in tragic outcomes. Conversely, the town of Comfort in Texas successfully mitigated a major flood event thanks to installed sirens and practiced evacuation drills.
Moving beyond wide-scale warnings
Issuing a flood warning and hoping for the best isn’t enough. Organisations need hyperlocal, real-time flood intelligence that provides actionable insights before water impacts their site.
Live flood forecasting is a critical tool. Technologies like Previsico’s Flood Intel Platform bridge intelligence gaps by offering sub-50m resolution and location-specific alerts up to 48 hours in advance, followed by real-time tracking as events unfold. These insights empower operational teams by letting facilities managers know which site areas are at risk so they can move equipment, trigger action plans, or initiate evacuations accordingly.
A significant success was achieved on the HS2 line in late 2023, when Previsico’s system enabled Balfour Beatty Vinci to proactively relocate assets ahead of incoming floodwaters. This prevented the substantial equipment damage and material losses they had previously experienced. Integrating forecasts into business continuity reduces downtime, damage, and disruption. It also enables insurance claims teams to prepare ahead, gathering evidence and speeding settlements while reducing uncertainty.
Bridging internal fragmentation
Even the best alerts are ineffective without coordinated action. A common failure point isn’t indifference but departmental siloes where resilience teams, facilities managers, insurers, and finance teams often work in isolation, only converging after a disaster.
To be effective, risk and resilience teams must define operational triggers and thresholds for action. Facilities managers require real-time data to make agile decisions, and insurers’ claims teams need visibility into pre-event actions to assess response quality and expedite valid claims fast.
By aligning these groups around shared data and protocols, organisations can deliver faster, cleaner, and more efficient flood responses.
The role of insurers in driving innovation
Insurers are uniquely positioned to champion real-time early warning systems. With rising climate risks, many are adopting parametric products, risk-based pricing, and pre-loss mitigation strategies. But to maximise these innovations, insurers need customers to provide both real-time data and documented response actions.
Forward-thinking insurers are partnering with corporate clients to deploy platforms, like Previsico’s, which capture audit trails of alerts, actions, and outcomes. This documentation streamlines claims, reduces disputes, and accelerates pay outs.
Innovations in insurance – such as parametric triggers and premiums tied to proactive defence measures – are helping clients build resilience. Further, many major insurers are offering bursaries to companies to help them with risk resilience measures.
Building a connected future for flood resilience
Flood risk management can no longer be the responsibility of any single department in companies. It’s a critical business function requiring integrated thinking and shared ownership. A strong resilience framework includes:
· Hyperlocal, real-time flood forecasts for flash flooding and surface water events
· IoT-enabled sensors that revolutionise flash flood detection, with low-cost networks of rain and water-level sensors provide continuous data streams to generate live flood alerts
· Clear, actionable response plans linked to alerts so teams know what to do immediately
· Cross-functional collaboration among risk, resilience, facilities, and claims professionals
· Insurer partnerships that reward proactive behaviour, offering enhanced terms, faster claims, and shared data ecosystems
Conclusion: from risk to readiness
By embracing real-time flood intelligence and connected operational models, businesses and insurers can shift from reactive to proactive flood resilience. Flash flood risk is rising, but with hyperlocal forecasting, automated alerts, integrated response planning, and partnerships that reward preparedness, organisations can transform flooding from a crisis to a controllable risk.
Early warning systems are not just technical deployments – they are tools for shared accountability and collective action. The future of flood resilience lies in intelligent, connected, and responsive ecosystems that prioritise response readiness
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