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Wildfire Notification Report

Date: 2026-04-21
Time: 20:46:17
Production Date and Time: 2026-04-21 20:51:06 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261112046177_e20261112048551_c20261112049010.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261112041177_e20261112043551_c20261112044038.nc
Number Of Thermal Anomaly Notifications: 6
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Roseau County, MN
NWS WFO Grand Forks ND
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-21 20:46:21UTC
Radiative Center (Lat, Lon): 48.670277°, -95.928055°
Nearby Counties (meeting notification criteria):
  • Roseau County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power54.64 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)306.67 K
Observed - Background BT (3.9 um)11.47 K
BT Anomaly (3.9 um)12.27 K
Maximum Observed - Clear RTM BT (3.9 um)18.25 K
Maximum Observed BTD (3.9-10/11/12 um)19.41 K
Observed - Background BTD (3.9-10/11/12 um)11.01 K
BTD Anomaly (3.9-10/11/12 um)18.19 K
Similar Pixel Count0
BT Time Tendency (3.9 um)11.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.68
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power54.64 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 59.70°
Mean Solar Zenith Angle 47.60°
Mean Glint Angle78.00°
Water Fraction0.00
Total Pixel Area 7.90 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Polk County, MN
NWS WFO Grand Forks ND
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 20:46:21UTC
Radiative Center (Lat, Lon): 47.694721°, -95.930557°
Nearby Counties (meeting notification criteria):
  • Polk County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power57.83 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)305.64 K
Observed - Background BT (3.9 um)5.92 K
BT Anomaly (3.9 um)4.86 K
Maximum Observed - Clear RTM BT (3.9 um)16.60 K
Maximum Observed BTD (3.9-10/11/12 um)15.53 K
Observed - Background BTD (3.9-10/11/12 um)6.26 K
BTD Anomaly (3.9-10/11/12 um)11.40 K
Similar Pixel Count4
BT Time Tendency (3.9 um)3.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.31
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power31.91 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 58.70°
Mean Solar Zenith Angle 47.00°
Mean Glint Angle76.40°
Water Fraction0.00
Total Pixel Area 15.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) SD
Country/Countries United States
County/Locality(s) Clark County, SD
NWS WFO Aberdeen SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 20:46:20UTC
Radiative Center (Lat, Lon): 44.977501°, -97.789169°
Nearby Counties (meeting notification criteria):
  • Clark County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power23.27 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)310.92 K
Observed - Background BT (3.9 um)4.27 K
BT Anomaly (3.9 um)2.94 K
Maximum Observed - Clear RTM BT (3.9 um)16.91 K
Maximum Observed BTD (3.9-10/11/12 um)12.87 K
Observed - Background BTD (3.9-10/11/12 um)4.17 K
BTD Anomaly (3.9-10/11/12 um)9.42 K
Similar Pixel Count13
BT Time Tendency (3.9 um)3.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.58
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power23.27 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 56.80°
Mean Solar Zenith Angle 44.30°
Mean Glint Angle71.70°
Water Fraction0.00
Total Pixel Area 7.30 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Guthrie County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 20:46:50UTC
Radiative Center (Lat, Lon): 41.785278°, -94.638054°
Nearby Counties (meeting notification criteria):
  • Guthrie County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power16.60 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)312.24 K
Observed - Background BT (3.9 um)2.96 K
BT Anomaly (3.9 um)1.43 K
Maximum Observed - Clear RTM BT (3.9 um)16.58 K
Maximum Observed BTD (3.9-10/11/12 um)12.49 K
Observed - Background BTD (3.9-10/11/12 um)3.10 K
BTD Anomaly (3.9-10/11/12 um)3.74 K
Similar Pixel Count24
BT Time Tendency (3.9 um)1.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.35
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power16.60 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.50°
Mean Solar Zenith Angle 44.40°
Mean Glint Angle66.60°
Water Fraction0.00
Total Pixel Area 6.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) KS
Country/Countries United States
County/Locality(s) Marshall County, KS
NWS WFO Topeka KS
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 20:46:50UTC
Radiative Center (Lat, Lon): 39.672222°, -96.611389°
Nearby Counties (meeting notification criteria):
  • Marshall County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power9.21 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)309.49 K
Observed - Background BT (3.9 um)1.86 K
BT Anomaly (3.9 um)1.16 K
Maximum Observed - Clear RTM BT (3.9 um)13.81 K
Maximum Observed BTD (3.9-10/11/12 um)12.91 K
Observed - Background BTD (3.9-10/11/12 um)2.09 K
BTD Anomaly (3.9-10/11/12 um)2.25 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.34
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power9.21 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 51.20°
Mean Solar Zenith Angle 42.00°
Mean Glint Angle62.60°
Water Fraction0.00
Total Pixel Area 6.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) CO
Country/Countries United States
County/Locality(s) Prowers County, CO
NWS WFO Pueblo CO
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 20:46:49UTC
Radiative Center (Lat, Lon): 38.116665°, -102.269447°
Nearby Counties (meeting notification criteria):
  • Prowers County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power18.09 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)320.48 K
Observed - Background BT (3.9 um)2.88 K
BT Anomaly (3.9 um)2.39 K
Maximum Observed - Clear RTM BT (3.9 um)16.29 K
Maximum Observed BTD (3.9-10/11/12 um)10.71 K
Observed - Background BTD (3.9-10/11/12 um)2.32 K
BTD Anomaly (3.9-10/11/12 um)3.10 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.77
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power18.09 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.70°
Mean Solar Zenith Angle 37.50°
Mean Glint Angle59.90°
Water Fraction0.00
Total Pixel Area 6.60 km2
Latest Satellite Imagery:
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