Yorba Linda Fire

The burned area boundary MTBS mapped from Landsat imagery, 1,243 acres. Point of origin as reported, 33.900, -117.758.

Reported final size

1,078 acres

Burned area mapped by MTBS

1,243 acres

Area inside the final perimeter

1,079 acres

Discovered

July 5, 2005, 2:06 p.m. local time

Cause

Human, Undetermined

State

California

County

Orange County

Reporting unit

Orange County Operational Area

Agency

CAL FIRE

Unit

CAORC

Incident type

Wildfire

MTBS fire identifier

CA3392111776420050705

MTBS assessment

Initial

Fire occurrence record

ICS209_2005_CA-ORC-05041267

Perimeter map method

GPS Ground

Perimeter records

2 on file for this fire; the largest is shown

The three sizes are three measurements: the size the agency reported when the fire was out, the burned area MTBS drew from satellite imagery before and after, and the GIS area inside the final perimeter, unburned islands included. They rarely agree exactly.

The status summaries (ICS-209 forms) the incident teams filed: 10, from July 5, 2005 to July 13, 2005. These are the teams’ own estimates, written while the incident was running, and personnel is totaled from the resources each report lists. A fact the reports leave blank is not shown, and a zero on the form is treated as blank.

Most structures threatened at once

300

Injuries

9

Most personnel assigned

1,250 on July 6, 2005

Most aircraft assigned

14

Cost reported by the teams

$2.8 million, in 2005 dollars

Cause on the reports

Human

Primary fuel model reported

Tall Grass (2.5 feet)

Acres reported by day

The largest rise between two days’ reports was 875 acres, on July 6, 2005.

Every fire of 2005 California fire history

• Yorba Linda, CA3 miles west of the fire
• Los Serranos, CA6 miles northeast of the fire
• Chino Hills, CA6 miles north of the fire
• Villa Park, CA7 miles southwest of the fire
• Placentia, CA7 miles west of the fire
• Brea, CA8 miles west of the fire

Perimeters from the National Interagency Fire Center’s Interagency Fire Perimeter History, compiled from the Forest Service, BLM, BIA, Fish and Wildlife Service, National Park Service, the Alaska Interagency Fire Center and CAL FIRE. Burned areas and ignition dates from Monitoring Trends in Burn Severity (MTBS), a program of the US Geological Survey and the USDA Forest Service. Fire reports from Short, Karen C. 2022, Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014], 6th Edition, Forest Service Research Data Archive, doi.org/10.2737/RDS-2013-0009.6. Records before 2014 were joined by this site: a fire report to the burned area its MTBS identifier names, a perimeter to the burned area it lies in when the names or the sizes agree. Incident figures from ICS-209-PLUS: St. Denis, Lise A., Karen C. Short, Kathryn McConnell, Maxwell C. Cook, Nathan P. Mietkiewicz, Mollie Buckland and Jennifer K. Balch, 2023, All-hazards dataset mined from the US National Incident Management System 1999-2020, Scientific Data 10, 112, doi.org/10.1038/s41597-023-01955-0; data on figshare, doi.org/10.6084/m9.figshare.19858927.v3, licensed CC BY 4.0. This site matched each incident to the fire by the dataset’s own links where it has them, and otherwise by name, start date, state and size, and left out figures too large to be possible for a fire of its size.