For hurricane and typhoon events, MIS publishes intelligence layers before landfall, along with early Pre-Event Exposure processing that matches your portfolio against the forecast. Together, these give you a view of potential exposure before damage occurs, so your team can prepare while the storm is still at sea.
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[SCREENSHOT: GEO hurricane event showing the Predicted Path and Wind Speed Probability layers active before landfall]

MIS monitors developing tropical systems continuously. Once a storm reaches a stage where landfall appears likely, analysts begin publishing pre-event layers. These are typically available 24–72 hours before landfall, depending on the storm's track certainty.

Pre-event layers are updated as the forecast changes. Check back regularly during an active hurricane season — the predicted path and intensity can shift significantly.

Shows the probability of Category 1 or higher wind speeds reaching any given area. The layer is displayed as a grid, with colour intensity representing the likelihood of damaging winds. Use this to understand which parts of your portfolio face meaningful wind exposure before the storm track is confirmed.

Shows the forecast track of the storm centre, including the cone of uncertainty. The cone represents the range of possible paths — the storm centre is forecast to stay within the cone, but damage extends beyond it depending on wind field size.

Where applicable, MIS publishes a storm surge layer showing areas at risk of coastal inundation. Storm surge is often the most damaging component of a hurricane — this layer is particularly important for coastal portfolios.

[SCREENSHOT: Potential Storm Surge layer showing inundation zones]

Alongside the map layers, MIS now runs an early stage of Exposure processing directly against the forecast. Pre-Event Exposure matches your portfolio's locations and policies against the Wind Speed Probability, Predicted Path, and Storm Surge layers, so you can see which parts of your portfolio may fall within the impact area before landfall — not just where the storm is forecast to go.

This gives Claims, Exposure, and Underwriting teams earlier visibility into likely affected locations and policies, ahead of the Exposure and Claims layers that are published after the event.

The Outlook Downloads panel lets you download the latest available Pre-Event Exposure data for a developing storm, matched against your portfolio.

[SCREENSHOT: Outlook Downloads panel showing a peril outlook with layer understanding and location/policy download options]
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Each download is labelled with clear metadata so you know exactly what you're looking at:

As the forecast updates, a new outlook download becomes available — always check the data cut before using a download for analysis, since a Wind Outlook from six hours ago may no longer reflect the latest track.

MIS also provides a Pre-Event Quickview that activates all map layers at once. Select it from the Quickviews dropdown.

Are pre-event layers and outlooks available for all tropical systems?
No. MIS publishes pre-event layers and outlook downloads when a system has a credible landfall threat. Storms that remain at sea or dissipate before reaching land may not have them.

What's the difference between a pre-event layer and an outlook download?
Pre-event layers (Wind Speed Probability, Predicted Path, Storm Surge) are what you see on the map. Outlook downloads are your portfolio matched against those layers, packaged as a download with portfolio, peril, and data cut metadata.

Can I download pre-event layers?
Yes — all pre-event layers are downloadable as shapefile and GeoJSON. See [Downloading Layers]. Outlook downloads are available separately from the Summary tab.

How accurate is the Predicted Path?
The path reflects the official National Hurricane Center or Joint Typhoon Warning Center forecast at the time of publication. MIS updates the layer and outlook downloads as the forecast changes, but track forecasts carry inherent uncertainty — always be aware of that when assessing exposure.

Do pre-event layers and outlooks stay available after landfall?
Yes. Pre-event layers and their outlook downloads remain on the report after landfall, so you can compare the forecast against the actual impact once the Exposure and Claims layers are published.