Evacuations issued during this event
- Evacuation orderUS-CA-XSH-JVA-4260 — Shasta County issued · alert expired
- Evacuation orderUS-CA-XSH-JVA-4280 — Shasta County issued · alert expired
- Evacuation orderUS-CA-XSH-JVA-4290 — Shasta County issued · alert expired
- Evacuation orderUS-CA-XSH-JVA-4360 — Shasta County issued · alert expired
- Evacuation warningUS-CA-XSH-BEV-4200 — Shasta County issued · alert expired
- Evacuation warningUS-CA-XSH-BEV-4210 — Shasta County issued · alert expired
- Evacuation warningUS-CA-XSH-BEV-4230 — Shasta County issued · alert expired
- Evacuation warningUS-CA-XSH-BEV-4240 — Shasta County issued · alert expired
- Evacuation warningUS-CA-XSH-BEV-4250 — Shasta County issued · alert expired
- Evacuation warningUS-CA-XSH-BEV-4370 — Shasta County issued · alert expired
- Evacuation warningUS-CA-XSH-COT-7500 — Shasta County issued · alert expired
Historical record from Cal OES — alert times shown are when each WEA message was issued and expired; the evacuation itself may have remained in force longer (lift times aren't published to IPAWS).
This event is no longer active — it's kept here as a record. Recovery may still be underway; the guidance below applies.
The Brook Fire in Shasta, California, burned 502 acres before reaching full containment on July 18, 2026. Homes in the affected area faced direct fire damage during the incident.
Overview written from official NASA EONET and National Interagency Fire Center/IRWIN data.
- Type
- Wildfires
- Official size
- 502 acres
- Containment
- 100%
- Cause
- Undetermined
- Began
- Status
- Inactive
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Affected area map
The shaded area is the affected-area perimeter reported for this event by NASA EONET (Shasta, California), colored by hazard type. Pan and zoom to explore the map; when more than one observation exists, use the slider below to step through how the reported area changed.
Interactive affected-area map
Shasta, California · Enable JavaScript to explore the map.
reported perimeter · evacuation orders as issued (dashed): order warning / shelter
Official size & containment
Official incident size and containment reported through NIFC / IRWIN, as we observed it. Newest first.
- 502 acres ±0 100% contained
- 502 acres ±0 100% contained
- 502 acres ±0 95% contained
- 502 acres ±0 95% contained
- 502 acres ±0 95% contained
- 502 acres ±0 95% contained
- 502 acres ±0 65% contained
- 502 acres ±0 65% contained
Show 4 earlier observations
- 502 acres ±0 65% contained
- 502 acres ±0 43% contained
- 502 acres ±0 20% contained
- 502 acres 20% contained
Shown as reported by our sources — not an official product. For current advisories and the authoritative map, see NASA EONET ↗.
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Fire damage restoration
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Water damage restoration
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Latest updates
Official updates and news coverage for this event, newest first — National Weather Service products, local storm reports, incident updates and press headlines. Official items are verbatim government text; news headlines link out to the original outlet.
- Forecast discussion NWS STO
Area Forecast Discussion
Seasonal temperatures and dry conditions expected through the week, with highs in the low to upper 90s across the Sacramento Valley today.
Show full text Hide full text
000 FXUS66 KSTO 171821 AFDSTO
Area Forecast Discussion National Weather Service Sacramento CA 1121 AM PDT Mon Aug 17 2026
.KEY MESSAGES...
- Seasonal temperatures and dry conditions continue through the week ahead.
&&
.DISCUSSION...
Morning mid-level stratus intrusions across portions of the Sacramento Valley has helped keep temperatures cool to start the work week. Stratus will continue to burn away as we move through the remainder of the early afternoon hours, allowing high temperatures to climb into the low to upper 90s for the Valley; warmest temperatures in the northern Sacramento Valley. Synoptic analysis reveals high pressure aloft in south CONUS with offshore troughing in the Pacific. This pattern will continue to allow seasonable high temperatures across NorCal, along with onshore flow easing overnight and early morning temperatures. Ridge in the south is forecast to retrograde, drifting slightly west allowing for moderation in high temperatures Tuesday and Wednesday, but only by 3 to 6 degrees with Minor HeatRisk.
Thursday, Pacific low is forecast to dig closer to shore while the upper level ridge moves into the Four Corners region. Onshore flow will slightly incre…
- News San Francisco Chronicle
California Fire Map: Track updates on fires across California
- Federal declaration FEMA
Fire Management Assistance declaration: GANN FIRE (California)
FEMA FM-5662 — Fire, declared 2026-08-04.
- News San Francisco Chronicle
California Fire Map: Track updates on fires across California
Show 3 earlier updates
Updates are captured automatically from official and news sources, and may lag the live source. For the very latest, see NASA EONET ↗.