Awatchfire

Los Angeles County, California

Lac-306404 Fire

Burning 2.6 miles north of Diamond Bar and 2.9 miles south-west of Pomona, since Thursday 27 August.

Map of California. The Lac-306404 Fire burns 373 miles from Sacramento, and 373 miles from the state capital, Sacramento.
The fire sits 373 miles from Sacramento.

—

acreage not yet reported

48

days burning so far

—

no share of the perimeter reported held yet

The picture as of 9:09am today

The Lac-306404 Fire is still listed as active, and has not been looked at lately. Nothing has given off fresh heat for 534 hours.

No fresh look at this fire for 534 hours. Everything on the map below was seen before then.

Shaded relief map of the Lac-306404 Fire. Amber flames mark every place that gave off heat in the last day; the shading is the shape of the ground.
Heat in the last day Higher ground pale, valleys dark Where another fire is recorded

534hours

since anything was last seen giving off heat — about 2:55am on Wednesday, local time.

0readings

of heat in the last day. There is not yet an earlier stretch of record to compare that against.

2.6miles

is how close the heat has come to Diamond Bar at any point in the record. In the last day the nearest heat has been None miles from it, and the closest this fire has come to Pomona is 3.6 miles, None in the last day.

1.1miles

is the furthest any heat has been seen from the point on the official record — the width of the ground involved so far.

37 other fires are burning inside the same view. Bar Fire started on Saturday 29 August, 3.1 miles west, and has reached an unrecorded size. Billy Fire started on Tuesday 6 October, 4.3 miles north, and has reached an unrecorded size. Bryson Fire started on Monday 21 September, 2.8 miles north, and has reached an unrecorded size. Campus Fire started on Friday 4 September, 3.1 miles north, and has reached an unrecorded size. Fox Fire started on Thursday 8 October, 0.4 miles north-east, and has reached an unrecorded size. Lac-297933 Fire started on Friday 21 August, 3.3 miles east, and has reached an unrecorded size. Lac-298861 Fire started on Saturday 22 August, 4.1 miles east, and has reached an unrecorded size. Lac-304628 Fire started on Wednesday 26 August, 4.1 miles east, and has reached an unrecorded size. Lac-306006 Fire started 325 minutes before this one, 1.8 miles north-east, and has reached an unrecorded size. Lac-310605 Fire started on Sunday 30 August, 2.0 miles north-east, and has reached an unrecorded size. Lac-310842 Fire started on Sunday 30 August, 3.0 miles west, and has reached an unrecorded size. Lac-312432 Fire started on Tuesday 1 September, 3.4 miles east, and has reached an unrecorded size. Lac-313070 Fire started on Tuesday 1 September, 1.9 miles north, and has reached an unrecorded size. Lac-313819 Fire started on Wednesday 2 September, 5.0 miles north-east, and has reached an unrecorded size. Lac-315298 Fire started on Thursday 3 September, 2.7 miles east, and has reached an unrecorded size. Lac-317096 Fire started on Friday 4 September, 2.4 miles east, and has reached an unrecorded size. Lac-331937 Fire started on Monday 14 September, 4.7 miles north, and has reached an unrecorded size. Lac-335083 Fire started on Thursday 17 September, 1.7 miles north-east, and has reached an unrecorded size. Lac-336252 Fire started on Friday 18 September, 4.8 miles south-west, and has reached an unrecorded size. Lac-338272 Fire started on Saturday 19 September, 3.5 miles east, and has reached an unrecorded size. Lac-342936 Fire started on Wednesday 23 September, 3.6 miles north-east, and has reached an unrecorded size. Lac-343044 Fire started on Wednesday 23 September, 0.8 miles north-west, and has reached an unrecorded size. Lac-343098 Fire started on Wednesday 23 September, 3.6 miles north-east, and has reached an unrecorded size. Lac-343199 Fire started on Wednesday 23 September, 3.6 miles north-east, and has reached an unrecorded size. Lac-343883 Fire started on Thursday 24 September, 3.9 miles north-east, and has reached an unrecorded size. Lac-345694 Fire started on Friday 25 September, 3.6 miles north-east, and has reached an unrecorded size. Lac-346148 Fire started on Friday 25 September, 4.0 miles north-east, and has reached an unrecorded size. Lac-347256 Fire started on Saturday 26 September, 2.7 miles north-east, and has reached an unrecorded size. Lac-347391 Fire started on Saturday 26 September, 3.8 miles north-east, and has reached an unrecorded size. Lac-347444 Fire started on Saturday 26 September, 2.8 miles north-east, and has reached an unrecorded size. Lac-348621 Fire started on Sunday 27 September, 4.5 miles north-east, and has reached an unrecorded size. Lac-351729 Fire started on Wednesday 30 September, 2.2 miles north-east, and has reached an unrecorded size. Lac-355860 Fire started on Saturday 3 October, 1.9 miles north, and has reached an unrecorded size. Lac-363483 Fire started on Thursday 8 October, 3.7 miles north-east, and has reached an unrecorded size. Lac-366472 Fire started on Saturday 10 October, 1.7 miles north-east, and has reached an unrecorded size. Margo Fire started on Saturday 19 September, 4.1 miles north-west, and has reached an unrecorded size. Scenic Fire started on Wednesday 14 October, 1.0 miles south-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 six 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.

Where the heat is

No cluster large enough to call a separate front. The heat is in one piece.

Conditions measured 6.4 miles from the fire: 78°F, air at 19% humidity, a 12 mph wind out of the east.

How it got here

17 days of record on a day-50 fire

The record here begins at 2:26am on 30 Aug and runs to 2:56am on 23 Sep — 576 hours, 26 readings of heat. The fire is on day 50, so the first 33 days are missing: nothing showed up from above until the fire was large enough and the sky over it clear enough for it to be seen.

Animated map of the Lac-306404 Fire across the whole record, with a time bar along the bottom showing energy released and the local date.
The whole record, 195 frames at 3 hours a frame. The bar along the bottom is energy released; the moving line is the clock.

Day by day 17 days of record

  1. Map for Sun 30 Aug: flames mark every place that gave off heat that day.

    Sun30 Aug

    First readings

    • 1 heat readings
    • Heat from 2:26am to 2:26am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  2. Map for Mon 31 Aug: flames mark every place that gave off heat that day.

    Mon31 Aug

    Holding

    • 1 heat readings
    • Energy 1.0 times the day before
    • Heat from 2:52am to 2:52am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  3. Map for Tue 1 Sep: flames mark every place that gave off heat that day.

    Tue1 Sep

    Holding

    • 2 heat readings
    • Energy 1.0 times the day before
    • Heat from 2:32am to 3:09am
    • Spread 1.0 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  4. Map for Wed 2 Sep: flames mark every place that gave off heat that day.

    Wed2 Sep

    The fiercest day

    • 3 heat readings — the most of any day
    • Energy 2.0 times the day before
    • Heat from 2:13am to 3:11am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  5. Map for Thu 3 Sep: flames mark every place that gave off heat that day.

    Thu3 Sep

    Holding

    • 2 heat readings
    • Energy 50% down on the day before
    • Heat from 2:32am to 2:49am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  6. Map for Fri 4 Sep: flames mark every place that gave off heat that day.

    Fri4 Sep

    Holding

    • 1 heat readings
    • Energy 1.0 times the day before
    • Heat from 2:32am to 2:32am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  7. Map for Sat 5 Sep: flames mark every place that gave off heat that day.

    Sat5 Sep

    Cooling off

    • 1 heat readings
    • Energy 100% down on the day before
    • Heat from 2:13am to 2:13am
    • Spread 1.0 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  8. Map for Tue 8 Sep: flames mark every place that gave off heat that day.

    Tue8 Sep

    Flaring up

    • 1 heat readings
    • Heat from 2:56am to 2:56am
    • Spread 1.0 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  9. Map for Thu 10 Sep: flames mark every place that gave off heat that day.

    Thu10 Sep

    Holding

    • 1 heat readings
    • Energy 1.0 times the day before
    • Heat from 3:04am to 3:04am
    • Spread 1.0 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  10. Map for Fri 11 Sep: flames mark every place that gave off heat that day.

    Fri11 Sep

    Cooling off

    • 1 heat readings
    • Energy 100% down on the day before
    • Heat from 2:45am to 2:45am
    • Spread 0.9 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  11. Map for Sat 12 Sep: flames mark every place that gave off heat that day.

    Sat12 Sep

    Flaring up

    • 3 heat readings
    • Heat from 2:26am to 3:02am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  12. Map for Mon 14 Sep: flames mark every place that gave off heat that day.

    Mon14 Sep

    Cooling off

    • 1 heat readings
    • Energy 100% down on the day before
    • Heat from 2:43am to 2:43am
    • Spread 1.0 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  13. Map for Wed 16 Sep: flames mark every place that gave off heat that day.

    Wed16 Sep

    Holding

    • 1 heat readings
    • Heat from 2:05am to 2:05am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  14. Map for Fri 18 Sep: flames mark every place that gave off heat that day.

    Fri18 Sep

    Flaring up

    • 3 heat readings
    • Heat from 2:13am to 3:11am
    • Spread 1.0 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  15. Map for Sat 19 Sep: flames mark every place that gave off heat that day.

    Sat19 Sep

    Holding

    • 2 heat readings
    • Energy 1.0 times the day before
    • Heat from 1:54am to 2:49am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  16. Map for Sun 20 Sep: flames mark every place that gave off heat that day.

    Sun20 Sep

    Holding

    • 1 heat readings
    • Energy 1.0 times the day before
    • Heat from 2:32am to 2:32am
    • Spread 1.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  17. Map for Wed 23 Sep: flames mark every place that gave off heat that day.

    Wed23 Seplatest

    Today so far

    • 1 heat readings
    • Energy 1.0 times the day before
    • Heat from 2:56am to 2:56am
    • Spread 0.9 miles from the recorded point at its furthest
    • Burning through the pre-dawn

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.

  1. Thursday 27 August

    First reported

No containment figure has been reported for it yet. No crew count has been published for it yet. Nothing has looked at it for 534 hours, and the record still lists it as active.