Awatchfire

Okanogan County, Washington

Sinlahekin Fire

Burning 8.6 miles south of Loomis and 10.4 miles north of Conconully, since Sunday 26 July.

Map of Washington. The Sinlahekin Fire burns 124 miles from Ellensburg and 126 miles from Spokane, and 188 miles from the state capital, Olympia.
The fire sits 124 miles from Ellensburg and 126 miles from Spokane.

166,007

acres burned so far — about 259 square miles

81

days burning so far

100%

of the perimeter held

The picture as of 3:41pm today

The Sinlahekin Fire is still listed as active, and has not been looked at lately. Nothing has given off fresh heat for 1153 hours. What is burning has shifted 9.43 miles north over the last six hours.

No fresh look at this fire for 1153 hours. Everything on the map below was seen before then.

Shaded relief map of the Sinlahekin 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

1153hours

since anything was last seen giving off heat — about 2:25pm on Friday, local time.

15% less

energy in the last 6 hours of the record than in the 6 before them — the fire was cooler when it was last seen.

3.5miles

is how close the heat has come to Loomis 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 Conconully is 6.2 miles, None in the last day.

13.6miles

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

Smoke has been recorded lying over this ground once so far. The thickest of it was thin between 1:00pm and 4:30pm local time. The last of those windows closed 191 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 12.1 miles from the fire: 68°F, air at 34% humidity, a 12 mph wind out of the south.

How it got here

Seven days of record on a day-82 fire

The record here begins at 3:13am on 22 Aug and runs to 2:25pm on 28 Aug — 155 hours, 712 readings of heat. The fire is on day 82, so the first 75 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 Sinlahekin Fire across the whole record, with a time bar along the bottom showing energy released and the local date.
The whole record, 54 frames at 3 hours a frame. The bar along the bottom is energy released; the moving line is the clock.

Day by day 7 days of record

  1. Map for Sat 22 Aug: flames mark every place that gave off heat that day.

    Sat22 Aug

    First readings

    • 5 heat readings
    • Heat from 3:13am to 3:13am
    • Spread 8.1 miles from the recorded point at its furthest
    • Burning through the pre-dawn
  2. Map for Sun 23 Aug: flames mark every place that gave off heat that day.

    Sun23 Aug

    Flaring up

    • 14 heat readings
    • Energy 6.8 times the day before
    • Heat from 1:56am to 2:21pm
    • Spread 12.5 miles from the recorded point at its furthest
    • Burning through the pre-dawn and afternoon
  3. Map for Mon 24 Aug: flames mark every place that gave off heat that day.

    Mon24 Aug

    Flaring up

    • 44 heat readings
    • Energy 39.2 times the day before
    • Heat from 2:13am to 9:19pm
    • Spread 12.6 miles from the recorded point at its furthest
    • Burning through the pre-dawn, afternoon and night
  4. Map for Tue 25 Aug: flames mark every place that gave off heat that day.

    Tue25 Aug

    Holding

    • 106 heat readings
    • Energy 29% down on the day before
    • Heat from 1:56am to 8:21pm
    • Spread 12.5 miles from the recorded point at its furthest
    • Burning through the pre-dawn, afternoon and evening
  5. Map for Wed 26 Aug: flames mark every place that gave off heat that day.

    Wed26 Aug

    The fiercest day

    • 281 heat readings — the most of any day
    • Energy 5.6 times the day before
    • Heat from 1:56am to 9:00pm
    • Spread 13.6 miles from the recorded point at its furthest
    • Burning through the pre-dawn, morning, afternoon and night
  6. Map for Thu 27 Aug: flames mark every place that gave off heat that day.

    Thu27 Aug

    Cooling off

    • 198 heat readings
    • Energy 89% down on the day before
    • Heat from 2:22am to 9:38pm
    • Spread 13.6 miles from the recorded point at its furthest
    • Burning through the pre-dawn, morning, afternoon and night
  7. Map for Fri 28 Aug: flames mark every place that gave off heat that day.

    Fri28 Auglatest

    Cooling off

    • 64 heat readings
    • Energy 63% down on the day before
    • Heat from 2:05am to 2:25pm
    • Spread 13.6 miles from the recorded point at its furthest
    • Burning through the pre-dawn, morning and afternoon

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. Sunday 26 July

    First reported at 10 acres

    10 ac

  2. Sunday 23 August

    155,209 acres on record — 53% contained, 1563 personnel assigned

    155,209 ac · 53% held · 1563 crew

  3. Monday 24 August

    Grew to 155,227 acres — 1604 personnel

    155,227 ac · 53% held · 1604 crew

  4. Tuesday 25 August

    Grew to 155,491 acres — containment 56%, 1718 personnel

    155,491 ac · 56% held · 1718 crew

  5. Wednesday 26 August

    Grew to 156,699 acres — 1636 personnel

    156,699 ac · 56% held · 1636 crew

  6. Thursday 27 August

    Grew to 163,001 acres — containment 49%, 1595 personnel

    163,001 ac · 49% held · 1595 crew

  7. Friday 28 August

    Grew to 166,216 acres — 1570 personnel

    166,216 ac · 49% held · 1570 crew

  8. Saturday 29 August

    Grew to 166,868 acres — containment 41%, 1690 personnel

    166,868 ac · 41% held · 1690 crew

  9. Sunday 30 August

    Revised to 166,413 acres — containment 40%, 1684 personnel

    166,413 ac · 40% held · 1684 crew

  10. Monday 31 August

    Revised to 166,373 acres — containment 39%, 1312 personnel

    166,373 ac · 39% held · 1312 crew

  11. Tuesday 1 September

    Revised to 166,330 acres — containment 38%, 1352 personnel

    166,330 ac · 38% held · 1352 crew

  12. Wednesday 2 September

    Revised to 166,290 acres — 1326 personnel

    166,290 ac · 38% held · 1326 crew

  13. Thursday 3 September

    Revised to 166,151 acres — 1338 personnel

    166,151 ac · 38% held · 1338 crew

  14. Friday 4 September

    Revised to 166,106 acres — containment 44%, 1344 personnel

    166,106 ac · 44% held · 1344 crew

  15. Saturday 5 September

    Grew to 166,114 acres — containment 52%, 1242 personnel

    166,114 ac · 52% held · 1242 crew

  16. Sunday 6 September

    Grew to 166,116 acres — containment 59%, 1142 personnel

    166,116 ac · 59% held · 1142 crew

  17. Monday 7 September

    Revised to 166,084 acres — containment 67%, 1145 personnel

    166,084 ac · 67% held · 1145 crew

  18. Wednesday 9 September

    Revised to 166,018 acres — containment 76%, 895 personnel

    166,018 ac · 76% held · 895 crew

  19. Thursday 10 September

    Grew to 166,021 acres

    166,021 ac · 76% held · 895 crew

  20. Saturday 12 September

    Grew to 166,026 acres — 771 personnel

    166,026 ac · 76% held · 771 crew

  21. Monday 14 September

    Revised to 166,000 acres — containment 77%, 746 personnel

    166,000 ac · 77% held · 746 crew

  22. Tuesday 15 September

    Containment 81% — 727 personnel

    166,000 ac · 81% held · 727 crew

  23. Wednesday 16 September

    Grew to 166,012 acres — containment 84%, 616 personnel

    166,012 ac · 84% held · 616 crew

  24. Saturday 19 September

    Revised to 166,005 acres — containment 92%, 589 personnel

    166,005 ac · 92% held · 589 crew

  25. Tuesday 22 September

    Grew to 166,007 acres — 461 personnel

    166,007 ac · 92% held · 461 crew

  26. Wednesday 23 September

    Containment 93% — 439 personnel

    166,007 ac · 93% held · 439 crew

  27. Wednesday 30 September

    Containment 94% — 323 personnel

    166,007 ac · 94% held · 323 crew

  28. Thursday 1 October

    Containment 96% — 297 personnel

    166,007 ac · 96% held · 297 crew

  29. Friday 2 October

    Containment 98% — 265 personnel

    166,007 ac · 98% held · 265 crew

  30. Saturday 3 October

    Containment 99% — 247 personnel

    166,007 ac · 99% held · 247 crew

  31. Thursday 15 October

    Containment 100% — 122 personnel

    166,007 ac · 100% held · 122 crew

100% of the perimeter is being reported as held. 122 people are assigned to it. It has grown from 10 acres when it was first written down to 166,007 now. Nothing has looked at it for 1153 hours, and the record still lists it as active.