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Wildfire Notification Report

Date: 2026-04-20
Time: 17:16:16
Production Date and Time: 2026-04-20 17:21:03 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20261101716169_e20261101718542_c20261101719044.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20261101711169_e20261101713542_c20261101714025.nc
Number Of Thermal Anomaly Notifications: 4
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Possible Wildfire

Basic Information
State/Province(s) Saskatchewan
Country/Countries Canada
County/Locality(s) Division No. 3, Saskatchewan
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 17:16:23UTC
Radiative Center (Lat, Lon): 49.446945°, -107.256943°
Nearby Counties (meeting notification criteria):
  • Division No. 3 (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power20.47 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)300.99 K
Observed - Background BT (3.9 um)4.25 K
BT Anomaly (3.9 um)5.34 K
Maximum Observed - Clear RTM BT (3.9 um)12.34 K
Maximum Observed BTD (3.9-10/11/12 um)13.56 K
Observed - Background BTD (3.9-10/11/12 um)4.04 K
BTD Anomaly (3.9-10/11/12 um)8.62 K
Similar Pixel Count25
BT Time Tendency (3.9 um)3.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.66
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power20.47 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 63.80°
Mean Solar Zenith Angle 44.70°
Mean Glint Angle79.70°
Water Fraction0.00
Total Pixel Area 9.10 km2
Latest Satellite Imagery:
  • None Available
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Roosevelt County, MT
NWS WFO Glasgow MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 17:16:23UTC
Radiative Center (Lat, Lon): 48.535000°, -105.671112°
Nearby Counties (meeting notification criteria):
  • Roosevelt County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power23.56 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)304.04 K
Observed - Background BT (3.9 um)4.42 K
BT Anomaly (3.9 um)6.86 K
Maximum Observed - Clear RTM BT (3.9 um)12.70 K
Maximum Observed BTD (3.9-10/11/12 um)13.85 K
Observed - Background BTD (3.9-10/11/12 um)4.24 K
BTD Anomaly (3.9-10/11/12 um)9.88 K
Similar Pixel Count24
BT Time Tendency (3.9 um)4.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.64
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power23.56 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 63.70°
Mean Solar Zenith Angle 43.30°
Mean Glint Angle78.50°
Water Fraction0.00
Total Pixel Area 9.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Lewis and Clark County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-20 17:16:22UTC
Radiative Center (Lat, Lon): 47.492222°, -112.308891°
Nearby Counties (meeting notification criteria):
  • Lewis and Clark County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power57.26 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)313.87 K
Observed - Background BT (3.9 um)10.12 K
BT Anomaly (3.9 um)9.00 K
Maximum Observed - Clear RTM BT (3.9 um)20.87 K
Maximum Observed BTD (3.9-10/11/12 um)18.02 K
Observed - Background BTD (3.9-10/11/12 um)9.46 K
BTD Anomaly (3.9-10/11/12 um)21.07 K
Similar Pixel Count0
BT Time Tendency (3.9 um)7.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.80
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power57.26 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 60.00°
Mean Solar Zenith Angle 45.60°
Mean Glint Angle75.80°
Water Fraction0.00
Total Pixel Area 8.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) ID
Country/Countries United States
County/Locality(s) Owyhee County, ID
NWS WFO Boise ID
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 17:16:52UTC
Radiative Center (Lat, Lon): 43.005833°, -116.877777°
Nearby Counties (meeting notification criteria):
  • Owyhee County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power26.24 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)302.23 K
Observed - Background BT (3.9 um)6.68 K
BT Anomaly (3.9 um)4.65 K
Maximum Observed - Clear RTM BT (3.9 um)11.50 K
Maximum Observed BTD (3.9-10/11/12 um)13.24 K
Observed - Background BTD (3.9-10/11/12 um)7.49 K
BTD Anomaly (3.9-10/11/12 um)11.37 K
Similar Pixel Count3
BT Time Tendency (3.9 um)7.50 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.28
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power26.24 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.90°
Mean Solar Zenith Angle 45.40°
Mean Glint Angle68.60°
Water Fraction0.00
Total Pixel Area 6.80 km2
Latest Satellite Imagery:
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