The archived outline of the Loma Fire spans about 5.9 km from west to east and 6.4 km from south to north. CAL FIRE places the incident at off Loma Prieta Rd and Loma Chiquita Rd 10 miles NW of Morgan Hill. The mapped boundary provides a second way to locate the event: it shows the extent around that reference location.
| Start listed by CAL FIRE | 26 September 2016 |
|---|---|
| County listing | Santa Clara |
| Reported area in hectares | 1,811 ha (converted from acres) |
| Extent of the mapped outline | 5.9 × 6.4 km (west–east × south–north) |
| Containment entry in the archive | 19 September 2017 |
What the perimeter shows
The two spans differ by only 0.5 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 4,474 acres; the interagency feature stores 4,474.1 GIS acres. The mapped value is 0.1 acres above the reported value (0.00%). This compares two published measurements, not two observation times. The difference cannot be read as fire growth.
CAL FIRE also records structures damaged: 1; structures destroyed: 28. Those counts come from the incident record. A building inside the perimeter cannot be assigned a damage category from this map alone.
A similar-sized fire for comparison
The Jayne Fire of 2017 is the closest match by reported acreage in this 100-case collection (4,532 acres). Its mapped spans are 4.2 by 7.2 km, west–east then south–north, versus 5.9 by 6.4 km here. Both outlines are longer in the same direction, but one is substantially narrower relative to its length.
Sources and map method
- Loma Fire · CAL FIRE incident record
- NIFC interagency history · source perimeter (GeoJSON)
- Jayne 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.