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Cut Gap Fire, November 2022 Rockcastle

Out · last detection 7 Nov 2022, 18:33 UTC

The fire started on 6 November 2022 in Rockcastle, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 1,015 hectares, spread across a single county.

It is the 8th largest in Kentucky since 2016 (of 20 with a page). Number 303 in United States in 2022, of 493.

Burnt area
1,015ha
official perimeter (MTBS / NIFC)
Duration
1day
6 Nov 2022 – 6 Nov 2022
Municipalities hit
1
counties
Started on
6 Nov
2022
Heat detections
57
in a single hotspot: 37 MW
Danger at start
12
Moderate · FWI index
Energy released
13MW
sum of detected power

Where it burned

7 Nov 2022
HOTSPOTS BY DAY 6 Nov6 Nov

How it evolved, day by day

67

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

25°high
47km/h · peak gust
11%lowest humidity

It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 28.6 mm on 11 Nov.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

What happened to each town

  1. Rockcastle where it started
    1,010 ha reached on 6 Nov
    1.2 %

Burnt area inside each county, from crossing the official perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

The weather day by day

ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.

Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

Day High Min. humidity Peak gust Rain Danger (FWI)
6 Nov 24.5 °C 49 % 47 km/h 0.5 mm Moderate 12
7 Nov after 25.1 °C 30 % 28 km/h 0.8 mm Moderate 12
8 Nov after 22.0 °C 11 % 36 km/h 0.0 mm Moderate 20
9 Nov after 25.3 °C 12 % 24 km/h 0.0 mm High 22
10 Nov after 22.5 °C 37 % 28 km/h 0.0 mm Moderate 16
11 Nov after 18.6 °C 62 % 34 km/h 28.6 mm Very low 0

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 30 Oct 2022
After · 13 Nov 2022

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 9 November 2022 the air beside the fire reached 23 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak23 µg/m³
Days over the guideline0 days
PM1033 µg/m³
Optical depth0.20
456789
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 57Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Frequently asked questions

How long did the Cut Gap fire last?
It burned between 6 November 2022 and 6 November 2022: 1 day, according to the start date recorded by United States agencies (MTBS / NIFC) and the heat detections seen by satellite.
How much area did it burn?
The official perimeter published by United States agencies (MTBS / NIFC) is 1,015 hectares (10.2 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Rockcastle (1,010 ha, 1.2 %).
What was the weather like?
During the fire the temperature reached 25.3 °C, humidity dropped to 11 % and gusts hit 47 km/h. The fire danger index (FWI) reached 22, class High.
Where does this data come from?
From the official burnt perimeter of United States agencies (MTBS / NIFC, public domain), NASA FIRMS VIIRS hotspots and the administrative boundaries of United States. It is not an official report.

Where to verify it

A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.

Emergency number: 911

Satellite cross-check

Does something look wrong on this page?

This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.

Report an error
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We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 911.

Where this data comes from

The perimeter is official and in the public domain. For past years it comes from MTBS (Monitoring Trends in Burn Severity), run by the U.S. Geological Survey and the USDA Forest Service, which map it on Landsat and Sentinel-2 imagery. For the current and last year it comes from WFIGS at the National Interagency Fire Center (NIFC): incident perimeters mapped by fire crews, aircraft and imagery. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. County boundaries come from geoBoundaries ADM2 (Public Domain). The area per county is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from official figures.