The last 24 hours
The GIS perimeter still reads 172,705 acres, 81% contained (perimeter dated Sep 15, 8:47 AM PDT, about 23.5 hours old at capture) — completely flat against yesterday morning and evening, no change in acreage, containment, or nearest edge. InciWeb's update posted Sep 15 carries the same 172,705 acres and 81% containment, with personnel down to 687, from 697 the prior evening — continued gradual demobilization. Fire behavior is described as primarily smoldering and consumption of heavy dead/down fuels, stump holes, and scattered unburned pockets, with localized creeping or backing only where surface fuels have dried.
No zone anywhere on the perimeter has been edited since Sep 3. The Level 1 ring closest to the house holds at 2.0 mi NNE (unedited since Sep 1), and the nearest Level 3 ring is unchanged at 5.1 mi N. Nothing here trips the tracker's alert condition.
VIIRS logged 20 detections region-wide in the last 24 hours — the first non-zero region-wide read in a week — but the nearest sits 41.7 mi N, a single low-intensity detection (FRP 1.31, nominal confidence) far outside the near-Plain radius and unrelated to the clusters tracked below. All five near-Plain clusters (within 12 mi) are unchanged in distance, detection count, and distinct-day count from yesterday — no new detections in any of them — and all remain classified persistent, sitting inside the fire's existing mapped footprint: 6.1 mi NE (6 over 2 days), 6.7 mi NE (16 over 3 days), 8.5 mi NNE (3 over 2 days), 8.9 mi NNE (9 over 3 days), and 10.1 mi NNE (8 over 2 days). A full news sweep (InciWeb above; lakewenatcheeinfo.com — unreachable again, empty response; Lake Chelan Now, still showing only its Sep 12 RAWS weather-station piece, nothing on geometry; the Chelan County active-emergencies page — still dated Aug 17, well past the 10-day staleness threshold for boundary claims, so discarded; wasmoke.blogspot.com, most recent relevant post Sep 11 on moderate-to-unhealthy smoke in Cle Elum, Chelan, and Leavenworth — now five days old, nothing newer; and a general search, which surfaced only older Wenatchee World and Lake Chelan Mirror articles from earlier growth stages — 170,967 and 171,302 acres — all discarded as stale) found nothing new beyond InciWeb's personnel figure and the weather note below.
Fire weather
Today runs light and southerly, around 2 mph — blowing toward the fire from the house's direction, pushing it further north and away from Plain — sunny, high 74. Tonight turns north, around 1 mph, technically the drainage-danger direction but negligible at this speed, mostly clear, low 42 rising to 48. Thursday shifts west, around 2 mph — the favorable quadrant — sunny, high 81; Thursday night stays west, around 5 mph, mostly clear, low 46. No sustained north/northeast wind appears in this forecast window, and no fire-weather (red flag) alert is in effect.
Worth flagging: InciWeb's Sep 15 update notes high pressure building from today, with temperatures warming 10–15°F and minimum humidity dropping to 20–35% by Friday and through the weekend — conditions that could pick up fire activity even without a wind shift. Nothing actionable yet; next brief will check whether that shows up in detections or containment.
Air quality
Modeled AQI at the house is 52 (PM2.5 7.3 µg/m³) — still Good, similar to yesterday morning.
Roads: no new road blocks logged.