The archived outline of the Tucker Fire spans about 11.6 km from west to east and 14.9 km from south to north. CAL FIRE places the incident at Hwy 139 and Tucker Butte Rd, 6 miles SW of Clear Lake Reservoir. The mapped boundary provides a second way to locate the event: it shows the extent around that reference location.
| Start listed by CAL FIRE | 28 July 2019 |
|---|---|
| County listing | Modoc |
| Reported area in hectares | 5,753 ha (converted from acres) |
| Extent of the mapped outline | 11.6 × 14.9 km (west–east × south–north) |
| Containment entry in the archive | 11 August 2019 |
| Perimeter collection method as recorded | GPS – Differentially Corrected Data |
What the perimeter shows
The two spans differ by only 3.3 km. That does not make this a circular burn: the dimensions measure the outermost coordinates, leaving indentations and gaps invisible. Use the polygon itself, rather than its enclosing rectangle, to check whether a location intersects the footprint.
Two estimates of area
The incident report gives 14,217 acres; the interagency feature stores 14,184.7 GIS acres. The mapped value is 32.3 acres below the reported value (0.23%). This compares two published measurements, not two observation times. The difference cannot be read as fire growth.
A similar-sized fire for comparison
The Pulgas Fire of 2014 is the closest match by reported acreage in this 100-case collection (14,416 acres). Its mapped spans are 11.5 by 10.6 km, west–east then south–north, versus 11.6 by 14.9 km here. The longer axes run in different directions. Matching on acreage would miss that contrast.
Sources and map method
- Tucker Fire · CAL FIRE incident record
- NIFC interagency history · source perimeter (GeoJSON)
- Pulgas Fire · comparison incident
- Comparison perimeter · interagency record
Spans use the geographic extremes of a generalized boundary, converted to kilometres at its middle latitude. They are approximate map dimensions, not distances travelled by flames. The GIS acreage is the source attribute, not an area recalculated from the simplified outline.