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Wildfire Notification Report

Date: 2026-04-21
Time: 21:46:17
Production Date and Time: 2026-04-21 21:51:15 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261112146177_e20261112148551_c20261112149006.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261112141177_e20261112143551_c20261112144029.nc
Number Of Thermal Anomaly Notifications: 5
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Koochiching County, MN
NWS WFO Duluth MN
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:46:21UTC
Radiative Center (Lat, Lon): 48.395279°, -93.786392°
Nearby Counties (meeting notification criteria):
  • Koochiching County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power9.72 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)294.26 K
Observed - Background BT (3.9 um)3.07 K
BT Anomaly (3.9 um)4.90 K
Maximum Observed - Clear RTM BT (3.9 um)9.93 K
Maximum Observed BTD (3.9-10/11/12 um)7.69 K
Observed - Background BTD (3.9-10/11/12 um)2.79 K
BTD Anomaly (3.9-10/11/12 um)4.40 K
Similar Pixel Count6
BT Time Tendency (3.9 um)1.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.63
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power9.72 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 58.70°
Mean Solar Zenith Angle 57.30°
Mean Glint Angle71.60°
Water Fraction0.00
Total Pixel Area 7.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Swift County, MN
NWS WFO Twin Cities/Chanhassen MN
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-21 21:46:20UTC
Radiative Center (Lat, Lon): 45.383335°, -95.940277°
Nearby Counties (meeting notification criteria):
  • Swift County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power135.67 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)317.25 K
Observed - Background BT (3.9 um)12.97 K
BT Anomaly (3.9 um)12.47 K
Maximum Observed - Clear RTM BT (3.9 um)23.69 K
Maximum Observed BTD (3.9-10/11/12 um)20.84 K
Observed - Background BTD (3.9-10/11/12 um)13.18 K
BTD Anomaly (3.9-10/11/12 um)55.45 K
Similar Pixel Count0
BT Time Tendency (3.9 um)12.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.40
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power76.21 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 56.50°
Mean Solar Zenith Angle 54.80°
Mean Glint Angle66.60°
Water Fraction0.00
Total Pixel Area 14.50 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Butler County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:46:51UTC
Radiative Center (Lat, Lon): 42.722221°, -92.871109°
Nearby Counties (meeting notification criteria):
  • Butler County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power25.47 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)309.81 K
Observed - Background BT (3.9 um)4.61 K
BT Anomaly (3.9 um)5.85 K
Maximum Observed - Clear RTM BT (3.9 um)17.12 K
Maximum Observed BTD (3.9-10/11/12 um)13.86 K
Observed - Background BTD (3.9-10/11/12 um)5.44 K
BTD Anomaly (3.9-10/11/12 um)12.36 K
Similar Pixel Count3
BT Time Tendency (3.9 um)5.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.17
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power25.47 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.70°
Mean Solar Zenith Angle 56.10°
Mean Glint Angle64.40°
Water Fraction0.00
Total Pixel Area 6.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) Unknown
Country/Countries Cuba
County/Locality(s) Unknown, Unknown
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:48:22UTC
Radiative Center (Lat, Lon): 21.323610°, -78.166389°
Nearby Counties (meeting notification criteria):
  • Unknown (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power15.37 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)303.89 K
Observed - Background BT (3.9 um)5.32 K
BT Anomaly (3.9 um)5.23 K
Maximum Observed - Clear RTM BT (3.9 um)5.28 K
Maximum Observed BTD (3.9-10/11/12 um)16.57 K
Observed - Background BTD (3.9-10/11/12 um)5.50 K
BTD Anomaly (3.9-10/11/12 um)4.82 K
Similar Pixel Count16
BT Time Tendency (3.9 um)1.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.44
Fraction of Surrounding Red Channel Pixels that are Brighter0.56
Maximum Radiative Power15.37 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 25.30°
Mean Solar Zenith Angle 66.20°
Mean Glint Angle63.60°
Water Fraction0.00
Total Pixel Area 4.40 km2
Latest Satellite Imagery:
  • None Available
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Possible Wildfire

Basic Information
State/Province(s) Unknown
Country/Countries Cuba
County/Locality(s) Unknown, Unknown
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 21:48:22UTC
Radiative Center (Lat, Lon): 21.242222°, -78.125000°
Nearby Counties (meeting notification criteria):
  • Unknown (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power21.01 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)307.80 K
Observed - Background BT (3.9 um)7.65 K
BT Anomaly (3.9 um)8.82 K
Maximum Observed - Clear RTM BT (3.9 um)8.81 K
Maximum Observed BTD (3.9-10/11/12 um)16.57 K
Observed - Background BTD (3.9-10/11/12 um)7.60 K
BTD Anomaly (3.9-10/11/12 um)9.93 K
Similar Pixel Count8
BT Time Tendency (3.9 um)2.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.64
Fraction of Surrounding Red Channel Pixels that are Brighter0.49
Maximum Radiative Power21.01 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 25.20°
Mean Solar Zenith Angle 66.20°
Mean Glint Angle63.70°
Water Fraction0.00
Total Pixel Area 4.40 km2
Latest Satellite Imagery:
  • None Available
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