How the record has moved
Each step is a change on the interagency incident record — acreage, containment or crews — with the date it was reported. No satellite reading is involved.
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Sunday 30 August
First reported
Los Angeles County, California
Burning 0.9 miles south of Walnut and 2.6 miles north-west of Diamond Bar, since Sunday 30 August.
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acreage not yet reported
45
days burning so far
—
no share of the perimeter reported held yet
The official record as of 9:09am today
The Lac-310842 Fire is on the interagency wildfire record in Los Angeles County, California. The figures below are the official record. A satellite heat map and day-by-day history appear here as soon as detections are attributed to this fire.
Undetermined
The cause has not yet been determined.
45 days
on record — first written down on Sunday 30 August at 7:13pm local time, starting at 0 acres.
34.023, -117.854lat, lon
is the official point of origin on the interagency record.
Conditions measured 5.6 miles from the fire: 78°F, air at 19% humidity, a 12 mph wind out of the east.
Six other fires are burning inside the same view. Bar Fire started on Saturday 29 August, 0.4 miles north-west, and has reached an unrecorded size. Lac-336252 Fire started on Friday 18 September, 2.2 miles south-west, and has reached an unrecorded size. Scenic Fire started on Wednesday 14 October, 2.4 miles east, and has reached an unrecorded size. Lac-343044 Fire started on Wednesday 23 September, 2.9 miles north-east, and has reached an unrecorded size. Lac-306404 Fire started on Thursday 27 August, 3.0 miles east, and has reached an unrecorded size. Lac-299590 Fire started on Saturday 22 August, 3.2 miles north-west, and has reached an unrecorded size. Their heat is counted against them, not against this fire, and the pale rings on the map mark where they are recorded.
Smoke has been recorded lying over this ground nine times so far. The thickest of it was moderate between 1:10pm and 4:30pm local time. The last of those windows closed 161 hours ago, so what is overhead now is not known.
No satellite heat has been attributed to this fire yet — either it is too new for a pass to have caught it, or it is too small to register from orbit. Everything above is from the interagency incident record and updates as that record does.
Each step is a change on the interagency incident record — acreage, containment or crews — with the date it was reported. No satellite reading is involved.
Sunday 30 August
First reported