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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Tuesday 4 August
First reported
—
acreage not yet reported
71
days burning so far
—
no share of the perimeter reported held yet
The official record as of 10:09am today
The Hay Bill Fire is on the interagency wildfire record in Dewey County, South Dakota. 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.
71 days
on record — first written down on Tuesday 4 August at 1:30pm local time.
44.923, -100.508lat, lon
is the official point of origin on the interagency record.
Three other fires are burning inside the same view. Little Willow Creek Fire started on Monday 27 July, 5.8 miles west, and has reached an unrecorded size. North SB Fire started on Thursday 9 July, 12.4 miles north-east, and has reached an unrecorded size. South VE Fire started on Monday 27 July, 13.5 miles north, 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 ten times so far. The thickest of it was moderate between 9:00am and 11:00am local time. The last of those windows closed 113 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.