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# Fire-weather risk changes when the clock moves from daily to hourly
- URL: https://intelligence.wildlandseco.com/2026-09-27-hourly-fire-weather-index/
- Published: 2026-09-27T11:16:12.000Z
- Updated: 2026-09-27T11:16:12.000Z
- Author: Benjamin Worlund
- Tags: fire weather, hourly FWI, Mediterranean, modeling, Climate, Fire, Methods, Monitoring, #ecological-intelligence, #brief-2026-09-27, #global-radar, #peer-reviewed, #geo-europe

Evidence

Peer-reviewed

Geography

Portugal and Spain / Iberian Peninsula

System

Fire-prone Mediterranean landscapes

## WHAT THE EVIDENCE SAYS

High-resolution Meso-NH simulations across three active-fire periods produced an hourly Fire Weather Index with a pronounced diurnal cycle and sensitivity to near-surface meteorology that daily summaries suppress.

## WHY IT MATTERS / OUR READ

Fire operations and ecological exposure occur within hours, not daily averages. Finer temporal resolution may improve when and where managers recognize short-lived dangerous windows.

## CAVEATS / UNCERTAINTY

The study evaluates modeled fire-weather conditions over three fire periods; FWI is a hazard index, not direct fire behavior, burned area or ecological severity, and model performance may not transfer unchanged to other regions.

## SOURCE

Scientific Reports  
[View original evidence ↗](https://www.nature.com/articles/s41598-026-72729-y?ref=intelligence.wildlandseco.com)

From the Morning Brief · 2026-09-27

[Read the full Morning Brief →](https://intelligence.wildlandseco.com/morning-brief-2026-09-27/)