# UCSB WRI — Wildfire Resilience Initiative

> Wildfire Resilience Initiative (iPhone/iPad app by University of California Santa Barbara.)

- Source: https://appshunter.io/ios/app/ucsb-wri/id6742199084 (this page in markdown: same URL + `.md`)
- Developer: [University of California Santa Barbara](https://appshunter.io/developer/1438041164)
- Category: Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 27 MB
- Languages: English
- Released: 2025-02-19
- Data updated: 2026-05-22
- User reviews in markdown: https://appshunter.io/ios/app/ucsb-wri/id6742199084/reviews.md

## What is UCSB WRI?

Stay ahead of wildfire risk with the UCSB WRI app — an interactive mapping tool built for residents, fire agencies, and planners in Santa Barbara County. Developed by the UC Santa Barbara Wildfire Resilience Initiative, the app delivers critical spatial insights to support wildfire preparedness and informed decision-making.

Explore a rich set of data layers covering key wildfire risk factors:

• Hydrant-Structure Access — Assess the unobstructed shortest paths to the furthest, least-accessible points of buildings from nearby hydrants or access roads

• Hydrant Spacing — Pinpoint areas where hydrant spacing may be insufficient for effective firefighting

• Road-Hydrant Proximity — See which hydrant is closest to any road segment and how far road sections are from hydrants

• Evacuation Potential — Assess which neighborhoods face higher congestion risk during an emergency evacuation

• Live Fuel Moisture — Track recent vegetation dryness / fire ignition risk

• Carbon Density — Locate high fuel load areas prone to more intense, harder-to-control fires

• Fire Potential Index — See where high fire potential conditions occur most frequently in the past by month

• Extreme Weather — Identify areas with recurring high winds or low humidity by month and time of day


Download vector data for offline use when you're in the field without network connectivity. Save your preferred map styles, filters, and positions so the app reopens exactly where you left off.


## Version history (last 5 releases)

### 1.4 — 2026-05-19

Updated fire potential index layer to use the latest 30 meters high-resolution data. Continue support the offline vector data download and customizable layer styles for structure access and hydrant spacing layers introduced since the last version

### 1.3 — 2026-02-26

• Allow users to customize colors and breakpoints to style structure access and hydrant spacing layers
• Customized layer styles, filters, layer visibility, and map position can be saved and re-used in future app re-opens
• Allow users to download vector map data around Santa Barbara County for offline use
• Evacuation potential layer now explicitly maps the potential road bottlenecks with a different color
• Structure access layer now shows access distance instead of conformity gap, since fire departments have final authority to determine the standard

### 1.2 — 2025-11-22

• Added fire potential index layer
• Added extreme weather layer
• Updated fire hazard severity zone layer to include local responsible area
• Support showing critical cluster when tap on a road linestring

### 1.1 — 2025-03-27

Adding fire hazard severity zone, wildland-urban interface, firewise community, and carbon density layers

### 1.0 — 2025-02-20

No release notes.

## More apps by University of California Santa Barbara

- [UCSB Arts & Lectures](https://appshunter.io/ios/app/ucsb-arts-and-lectures/id1065102606)
- [UC Santa Barbara Guides](https://appshunter.io/ios/app/uc-santa-barbara-guides/id1213935447)
- [UC Santa Barbara Events](https://appshunter.io/ios/app/uc-santa-barbara-events/id1438200958)
- [UCSB AS Stickers](https://appshunter.io/ios/app/ucsb-as-stickers/id1443674037)
- [UCSB Bridge](https://appshunter.io/ios/app/ucsb-bridge/id1533465626)
- [UC Santa Barbara Gauchos](https://appshunter.io/ios/app/uc-santa-barbara-gauchos/id1580396696)

All apps by University of California Santa Barbara: https://appshunter.io/developer/1438041164

## Related topics

[ucsb wri](https://appshunter.io/ios/topics/ucsb-wri)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-22.*