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Wildfire Notification Report

Date: 2026-04-21
Time: 15:26:17
Production Date and Time: 2026-04-21 15:31:03 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261111526177_e20261111528550_c20261111529024.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261111521177_e20261111523550_c20261111524009.nc
Number Of Thermal Anomaly Notifications: 5
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Judith Basin County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-21 15:26:19UTC
Radiative Center (Lat, Lon): 47.329445°, -110.201385°
Nearby Counties (meeting notification criteria):
  • Judith Basin County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power56.64 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)305.84 K
Observed - Background BT (3.9 um)11.00 K
BT Anomaly (3.9 um)8.24 K
Maximum Observed - Clear RTM BT (3.9 um)17.01 K
Maximum Observed BTD (3.9-10/11/12 um)23.81 K
Observed - Background BTD (3.9-10/11/12 um)11.26 K
BTD Anomaly (3.9-10/11/12 um)9.01 K
Similar Pixel Count0
BT Time Tendency (3.9 um)13.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.50
Fraction of Surrounding Red Channel Pixels that are Brighter0.94
Maximum Radiative Power56.64 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 64.50°
Mean Solar Zenith Angle 60.30°
Mean Glint Angle117.70°
Water Fraction0.00
Total Pixel Area 9.30 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Price County, WI
NWS WFO Duluth MN
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 15:26:21UTC
Radiative Center (Lat, Lon): 45.751389°, -90.639168°
Nearby Counties (meeting notification criteria):
  • Price County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power4.81 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)295.86 K
Observed - Background BT (3.9 um)1.83 K
BT Anomaly (3.9 um)1.76 K
Maximum Observed - Clear RTM BT (3.9 um)13.24 K
Maximum Observed BTD (3.9-10/11/12 um)8.33 K
Observed - Background BTD (3.9-10/11/12 um)1.54 K
BTD Anomaly (3.9-10/11/12 um)4.38 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.61
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power4.81 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 55.10°
Mean Solar Zenith Angle 47.40°
Mean Glint Angle96.10°
Water Fraction0.00
Total Pixel Area 7.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Fillmore County, MN
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 15:26:21UTC
Radiative Center (Lat, Lon): 43.546665°, -92.149445°
Nearby Counties (meeting notification criteria):
  • Fillmore County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power12.44 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)306.80 K
Observed - Background BT (3.9 um)4.77 K
BT Anomaly (3.9 um)3.91 K
Maximum Observed - Clear RTM BT (3.9 um)18.88 K
Maximum Observed BTD (3.9-10/11/12 um)13.19 K
Observed - Background BTD (3.9-10/11/12 um)3.56 K
BTD Anomaly (3.9-10/11/12 um)4.47 K
Similar Pixel Count20
BT Time Tendency (3.9 um)3.80 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.96
Fraction of Surrounding Red Channel Pixels that are Brighter0.98
Maximum Radiative Power12.44 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.30°
Mean Solar Zenith Angle 47.10°
Mean Glint Angle94.10°
Water Fraction0.00
Total Pixel Area 6.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Sioux County, IA
NWS WFO Sioux Falls SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 15:26:50UTC
Radiative Center (Lat, Lon): 43.136665°, -96.405556°
Nearby Counties (meeting notification criteria):
  • Sioux County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power25.53 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)310.05 K
Observed - Background BT (3.9 um)1.48 K
BT Anomaly (3.9 um)1.19 K
Maximum Observed - Clear RTM BT (3.9 um)17.20 K
Maximum Observed BTD (3.9-10/11/12 um)11.52 K
Observed - Background BTD (3.9-10/11/12 um)2.18 K
BTD Anomaly (3.9-10/11/12 um)5.89 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.20
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power13.03 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 54.50°
Mean Solar Zenith Angle 49.70°
Mean Glint Angle97.70°
Water Fraction0.00
Total Pixel Area 13.80 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) AL
Country/Countries United States
County/Locality(s) Talladega County, AL
NWS WFO Birmingham AL
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 15:27:21UTC
Radiative Center (Lat, Lon): 33.177776°, -86.310280°
Nearby Counties (meeting notification criteria):
  • Talladega County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power36.22 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)302.42 K
Observed - Background BT (3.9 um)7.44 K
BT Anomaly (3.9 um)5.56 K
Maximum Observed - Clear RTM BT (3.9 um)10.68 K
Maximum Observed BTD (3.9-10/11/12 um)17.90 K
Observed - Background BTD (3.9-10/11/12 um)7.47 K
BTD Anomaly (3.9-10/11/12 um)6.46 K
Similar Pixel Count8
BT Time Tendency (3.9 um)3.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.42
Fraction of Surrounding Red Channel Pixels that are Brighter0.75
Maximum Radiative Power20.09 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 40.60°
Mean Solar Zenith Angle 38.20°
Mean Glint Angle72.10°
Water Fraction0.00
Total Pixel Area 10.50 km2
Latest Satellite Imagery:
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