From forecast to the field: How GIS mapping is making catastrophe response more precise

Catastrophe response has always required speed. Today, it also requires precision.

A major weather event can change course quickly. Roads close, power goes out and access conditions shift as claims begin arriving across an impacted area. At the same time, qualified adjusting resources are limited, making it increasingly important to know where people are needed, when they should move and what conditions they are likely to encounter.

The traditional response was often to put as many resources into an affected area as possible and sort out the details once they arrived. Today, property teams take a more deliberate approach by using information available before, during and after an event to guide decision-making. Sedgwick’s CAT decision framework reflects that shift from “headcount first” to “intelligence first,” and GIS mapping is becoming an integral part of that shift.

Beyond the forecast: Understanding operational impact

A forecast tells us about the predicted storm path, but that’s only the beginning for claims organizations. GIS mapping puts weather intelligence into a geographic context alongside information that matters operationally, such as potential wind or flood impact, population and structure concentrations, road closures, access conditions and resource locations.

Bringing those data points together helps teams understand what an event may mean on the ground. Before an event, teams can evaluate where impact may concentrate and where resources could be positioned. As conditions develop, that picture can be refreshed to account for changing access, infrastructure and incoming claims.

Technology helps organize a significant amount of information into something leaders can act on, while human judgment remains central to operational and safety decisions.

Get more insights on catastrophe response

As weather patterns become more unpredictable, preparation and response strategies have to evolve with them. Explore more of Andy’s perspective on climate volatility in our 2026 Loss Adjusting Insights Report.

Access the report   →

Turning Hurricane Lala intelligence into action

Hurricane Lala provided a recent example of how that visibility can support catastrophe response.

Island events create distinct logistical challenges because teams can’t simply drive additional resources and supplies into an affected area. Following Lala, Sedgwick also had to account for road closures, downed electrical infrastructure and areas with limited access.

By using GIS mapping alongside weather and operational intelligence, the team gained a more complete understanding of conditions across Hawaii’s Big Island and used those insights to determine where resources could be positioned safely and effectively. Sedgwick personnel were staged within eight hours of airports reopening.

The analysis also helped the team look beyond the storm track by considering weather conditions alongside population concentration and areas of potential impact. Hilo and Kona emerged as key response areas, while access limitations affected how resources could be positioned across the island.

That geographic context can make a meaningful operational difference. Two locations may appear close on a traditional map, but a road closure or infrastructure disruption can dramatically change the time required for an adjuster to reach a loss site. Sedgwick’s GIS mapping capabilities can help teams account for those realities when determining how to best reach affected areas.

Why more precise deployment matters in CAT response

The ability to see conditions more clearly is also changing how catastrophe resources can be deployed.

Sending large numbers of adjusters into an event before the need is understood can create unnecessary cost, leave resources without enough work and put people into areas where access or safety conditions remain uncertain. A more precise approach uses evolving event information to guide where resources are staged, when they should move and what expertise may be needed.

Sedgwick’s CAT framework is designed to remain flexible as conditions and incoming claims develop. That can mean balancing expected demand with logistical considerations, releasing field resources as access becomes clearer and aligning specialized expertise with emerging needs.

For Lala, this meant using a more detailed understanding of conditions to guide where adjusters should go rather than deploying broadly and sorting assignments afterward. It also helped Sedgwick account for the safety of professionals entering the affected area while giving clients greater visibility into the developing response.

Using GIS mapping to make better decisions across the CAT lifecycle

The real value of GIS mapping is not just the map itself. It is how geographic information can help answer practical questions about where impact is concentrated, where teams can safely gain access, what expertise may be required and how those priorities are changing.

That perspective also has value beyond major hurricanes. Sedgwick teams are bringing together information across a range of weather events, from wind and hail to flooding and wildfires, so relevant weather intelligence can support day-to-day property operations as well as large CAT events.

Catastrophe response will always involve uncertainty, but better visibility can make that uncertainty easier to manage. By putting weather intelligence and operational information into geographic context, property teams can make better-informed decisions throughout an event and respond as conditions change.

When every hour matters, the advantage is not simply having more information. It is knowing what to do with it.