Climate events in the area: see on the map where the condition happens

Now, when you select a climate event on an area, the map shows which parts of it the condition is happening in at each instant, and the timeline ruler becomes a chart of how much of the area is affected.

Samuel GalanteSoftware engineer - i4sea

September 14, 2026

i4cast Forecast

Climate events in the area: see on the map where the condition happens

The climate events panel answers when your rule holds. For an area, it does not answer where.

A rain rule holding over an entire network and the same rule holding over two kilometres of it look identical in the list: "Active". The decision, though, is very different — closing the whole stretch or just the yard.

Now, when you select a climate event on an area, the map paints the parts of it where the condition is happening, instant by instant.

What changes

Nothing changes in how you set rules up. The rule is the same, the thresholds are the same, and the event list is the same. What is new is a reading: on top of knowing the condition holds somewhere in the area, you see where.

How to see it

Click the area on the map, tap "View forecast" and open the "Events" tab. Click the event you want to follow: it stays selected in the list and the map draws the shape inside the area, for the instant the timeline is parked on.

Drag the timeline, or hit play, and the shape follows. Clicking the same event again clears the selection and the map goes back to normal.

The timeline ruler becomes a chart

Map of the Salvador region with the monitored area outlined in blue over All Saints' Bay and the wind event shape painted in yellow over part of it; below it, the timeline ruler turned into a coverage chart, reading 20% of the area affected at the selected instant.

With an event selected, the timeline ruler shows how much of the area is affected at each instant. Full height is the whole area, and the dashed line at the top is the 100% reference. The stretch already played is filled, what is still ahead is faded, and the value under the cursor is written as a percentage.

That answers at a glance what the list cannot: whether the event is taking the whole area or one corner of it, and when it gets worse.

How the shape behaves over time

The shape only changes when the condition moves. Between one change and the next, the last one drawn holds.
An instant with no occurrence has no shape, and the chart reads zero there.
One event at a time. Selecting another swaps the shape, and its colour is the event's own colour from the list.

What the shape does not tell you

The edge is the real edge of the forecast cells, not a smoothed outline. It has corners on purpose: the drawing follows the data, not the other way round.
A cell with no data — on land, or outside the model grid — is not painted, and reads as "does not happen there".
The shape shows where the condition holds, not how intense it is. One painted part is not worse than another.

Where it is available

On locations of type Area. Points and multipoints have no "where inside" — a point is a single place.
On events that light up at some instant in the horizon. A rule that never lights has nothing to draw.
Very large areas may be refused, with a notice on the map. The event list keeps working normally in that case.

Summary

Your area is not a point, and the condition rarely happens across all of it. Now you see the part that matters: where the rule holds inside the area, how that moves across the days, and how much of the area is affected at each instant — with nothing changed in your setup.

Questions or suggestions? Talk to our team. This one came out of conversations with people who have to decide whether to close the whole stretch or just part of it.