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Wildfire Notification Report

Date: 2026-03-23
Time: 22:16:18
Production Date and Time: 2026-03-23 22:21:05 UTC
Primary Instrument: GOES-18 ABI
Wmo Spacecraft Id: 665
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G18_s20260822216181_e20260822218555_c20260822219043.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G18_s20260822211181_e20260822213555_c20260822214069.nc
Number Of Thermal Anomaly Alerts: 4
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Chouteau County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-03-23 22:16:24UTC
Radiative Center (Lat, Lon): 47.651943°, -110.779724°
Nearby Counties (meeting alert criteria):
  • Chouteau County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power69.39 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)301.62 K
Observed - Background BT (3.9 um)14.19 K
BT Anomaly (3.9 um)10.70 K
Maximum Observed - Clear RTM BT (3.9 um)19.48 K
Maximum Observed BTD (3.9-10/11/12 um)33.37 K
Observed - Background BTD (3.9-10/11/12 um)14.21 K
BTD Anomaly (3.9-10/11/12 um)14.17 K
Similar Pixel Count0
BT Time Tendency (3.9 um)10.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.24
Fraction of Surrounding Red Channel Pixels that are Brighter0.91
Maximum Radiative Power69.39 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 60.70°
Mean Solar Zenith Angle 59.30°
Mean Glint Angle117.90°
Water Fraction0.00
Total Pixel Area 8.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WY
Country/Countries United States
County/Locality(s) Big Horn County, WY
NWS WFO Riverton WY
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-03-23 22:16:25UTC
Radiative Center (Lat, Lon): 44.508335°, -108.344170°
Nearby Counties (meeting alert criteria):
  • Big Horn County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power77.24 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)314.19 K
Observed - Background BT (3.9 um)6.98 K
BT Anomaly (3.9 um)6.66 K
Maximum Observed - Clear RTM BT (3.9 um)25.50 K
Maximum Observed BTD (3.9-10/11/12 um)19.29 K
Observed - Background BTD (3.9-10/11/12 um)6.03 K
BTD Anomaly (3.9-10/11/12 um)6.20 K
Similar Pixel Count0
BT Time Tendency (3.9 um)5.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.94
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power40.63 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 59.00°
Mean Solar Zenith Angle 58.70°
Mean Glint Angle115.80°
Water Fraction0.00
Total Pixel Area 15.50 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WY
Country/Countries United States
County/Locality(s) Washakie County, WY
NWS WFO Riverton WY
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-03-23 22:16:25UTC
Radiative Center (Lat, Lon): 44.114723°, -107.885834°
Nearby Counties (meeting alert criteria):
  • Washakie County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power33.00 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)308.47 K
Observed - Background BT (3.9 um)6.56 K
BT Anomaly (3.9 um)5.91 K
Maximum Observed - Clear RTM BT (3.9 um)18.68 K
Maximum Observed BTD (3.9-10/11/12 um)25.38 K
Observed - Background BTD (3.9-10/11/12 um)5.98 K
BTD Anomaly (3.9-10/11/12 um)4.17 K
Similar Pixel Count0
BT Time Tendency (3.9 um)3.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.67
Fraction of Surrounding Red Channel Pixels that are Brighter0.88
Maximum Radiative Power33.00 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 58.90°
Mean Solar Zenith Angle 58.70°
Mean Glint Angle115.70°
Water Fraction0.00
Total Pixel Area 7.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CA
Country/Countries United States
County/Locality(s) Colusa County, CA
NWS WFO Sacramento CA
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-03-23 22:16:54UTC
Radiative Center (Lat, Lon): 39.377777°, -121.946663°
Nearby Counties (meeting alert criteria):
  • Colusa County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power72.91 MW
Map:
Additional Information
Alert Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)317.88 K
Observed - Background BT (3.9 um)15.69 K
BT Anomaly (3.9 um)7.38 K
Maximum Observed - Clear RTM BT (3.9 um)23.46 K
Maximum Observed BTD (3.9-10/11/12 um)37.97 K
Observed - Background BTD (3.9-10/11/12 um)15.85 K
BTD Anomaly (3.9-10/11/12 um)9.24 K
Similar Pixel Count0
BT Time Tendency (3.9 um)12.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.09
Fraction of Surrounding Red Channel Pixels that are Brighter0.87
Maximum Radiative Power72.91 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 48.40°
Mean Solar Zenith Angle 47.70°
Mean Glint Angle94.20°
Water Fraction0.00
Total Pixel Area 6.00 km2
Latest Satellite Imagery:
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