Risk matrix
Likelihood and impact on one grid your team owns.
When every hazard has both scores, you see concentration at a glance — which plans to write first, where readiness lags, and what council should hear about.
Risk matrix
5 scored · example data
- Wildland FireL4 · I4 · R3
- Riverine FloodingL3 · I5 · R2
- Winter StormL4 · I3 · R4
- Cyber incidentL2 · I4 · R2
- EarthquakeL1 · I5 · R3
Readiness rings on the live matrix when a score is under 3 — not shown in this crop.
Worked example: Cedar Ridge County and every hazard below are fictional. Scores illustrate the matrix format only.
The same scores that power the brief
Likelihood across, impact up — conventional HIRA layout. Readiness stays on the hazard row; a low readiness score can ring the marker even when risk sits in an amber cell.
- Included hazards only. Suggested or excluded hazards stay off the matrix until your team decides.
- Worth scoring next. Unscored hazards queue beside the grid, ordered by NRI and document evidence — so planners know where to spend the afternoon.
- One click to the record. Select a marker to open that hazard’s likelihood, impact and readiness chapters.
The matrix is not a separate deliverable
The brief prints the same placement — shaded cell, scores and cited reasoning — so the grid on screen and the packet you hand elected officials tell the same story.
Likelihood
3 of 5, Possible · verified
The county fire district recorded 64 wildland fires from 2010 through 2024, most under one acre; the largest, the 2018 Pine Hollow Fire, burned 1,240 acres.1 The 2022 wildfire protection plan maps 18,400 acres of wildland–urban interface along the western foothills, with about 3,100 homes within half a mile of continuous fuels.2
Sources for this assessment
- 1“Between 2010 and 2024 the District responded to 64 wildland fires, the majority of which burned less than one …”C, p. 4
- 2“The WUI boundary encompasses approximately 18,400 acres, concentrated in the western foothills, with roughly 3…”B, p. 12
Worked example: Cedar Ridge County is fictional. The scores illustrate the format and are nobody's decision.
Bring your documents. Leave with a cited brief.
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We prepare from public data before we meet
You leave with a cited brief for one hazard
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