Wildfires of 1991

Btt W 64 Fire

1991AlaskaWildfire

The Btt W 64 Fire burned 35,602 acres in Alaska, in 1991. MTBS dates its ignition to July 1, 1991.

Size
35,602 acres
Ignition
July 1, 1991

Map

The burned area boundary MTBS mapped from Landsat imagery, 35,602 acres. MTBS's point for the fire, 67.041, -154.321.

The record

Burned area mapped by MTBS
35,602 acres
Area inside the final perimeter
35,268 acres
Ignition (MTBS)
July 1, 1991
State
Alaska
Agency
Bureau of Land Management
Unit
AKTAD
Incident type
Wildfire
Unique fire identifier
1991-AKTAD-132614
MTBS fire identifier
AK6702115448519910701
MTBS assessment
Initial
Perimeter map method
Image Interpretation
Note on the perimeter
Perimeter modified from Landsat 4 image P74 R13 aquired 9/7/1992. Perimeter submitted by NPS.

The three sizes are three measurements: the size the agency reported when the fire was out, the burned area MTBS drew from satellite imagery before and after, and the GIS area inside the final perimeter, unburned islands included. They rarely agree exactly.

Other large fires in Alaska in 199112

FireAcresStartCause
Btt Wsw 84 Fire187,908
Yukon Flats 26 Fire122,822Jun 30, 1991
Fire 131569109,499Jun 30, 1991
Fire 13224186,444
Fire 13246075,207
Cem Ne 20 Fire56,431
Liv N 18 Fire48,565
Btt S 17 Fire43,568Jun 30, 1991
Mhm N 25 Fire42,326
Fire 13237641,530
Cem E 55 Fire37,834
Fire 13233935,314

Every fire of 1991 Alaska fire history

Sources

Perimeters from the National Interagency Fire Center’s Interagency Fire Perimeter History, compiled from the Forest Service, BLM, BIA, Fish and Wildlife Service, National Park Service, the Alaska Interagency Fire Center and CAL FIRE. Burned areas and ignition dates from Monitoring Trends in Burn Severity (MTBS), a program of the US Geological Survey and the USDA Forest Service. Records before 2014 were joined by this site: a fire report to the burned area its MTBS identifier names, a perimeter to the burned area it lies in when the names or the sizes agree.