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Wildfire Notification Report

Date: 2026-04-21
Time: 00:36:17
Production Date and Time: 2026-04-21 00:41:07 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261110036177_e20261110038550_c20261110039022.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261110031177_e20261110033550_c20261110034025.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) Phillips County, MT
NWS WFO Glasgow MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 00:36:20UTC
Radiative Center (Lat, Lon): 48.363056°, -107.634445°
Nearby Counties (meeting notification criteria):
  • Phillips County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power17.49 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)293.85 K
Observed - Background BT (3.9 um)4.26 K
BT Anomaly (3.9 um)4.98 K
Maximum Observed - Clear RTM BT (3.9 um)3.14 K
Maximum Observed BTD (3.9-10/11/12 um)9.57 K
Observed - Background BTD (3.9-10/11/12 um)3.99 K
BTD Anomaly (3.9-10/11/12 um)4.33 K
Similar Pixel Count4
BT Time Tendency (3.9 um)3.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.69
Fraction of Surrounding Red Channel Pixels that are Brighter0.95
Maximum Radiative Power17.49 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 64.10°
Mean Solar Zenith Angle 76.00°
Mean Glint Angle46.30°
Water Fraction0.00
Total Pixel Area 9.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Iowa County, WI
NWS WFO Milwaukee/Sullivan WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 00:36:21UTC
Radiative Center (Lat, Lon): 43.058056°, -90.041664°
Nearby Counties (meeting notification criteria):
  • Iowa County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power7.25 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)283.18 K
Observed - Background BT (3.9 um)4.49 K
BT Anomaly (3.9 um)5.50 K
Maximum Observed - Clear RTM BT (3.9 um)5.85 K
Maximum Observed BTD (3.9-10/11/12 um)5.28 K
Observed - Background BTD (3.9-10/11/12 um)3.94 K
BTD Anomaly (3.9-10/11/12 um)8.59 K
Similar Pixel Count1
BT Time Tendency (3.9 um)3.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.76
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power7.25 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.20°
Mean Solar Zenith Angle 88.90°
Mean Glint Angle61.50°
Water Fraction0.00
Total Pixel Area 6.50 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Webster County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 00:36:50UTC
Radiative Center (Lat, Lon): 42.331390°, -93.979164°
Nearby Counties (meeting notification criteria):
  • Webster County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power96.50 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)300.31 K
Observed - Background BT (3.9 um)14.92 K
BT Anomaly (3.9 um)21.45 K
Maximum Observed - Clear RTM BT (3.9 um)14.60 K
Maximum Observed BTD (3.9-10/11/12 um)14.62 K
Observed - Background BTD (3.9-10/11/12 um)14.09 K
BTD Anomaly (3.9-10/11/12 um)17.75 K
Similar Pixel Count2
BT Time Tendency (3.9 um)12.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.97
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power62.57 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.70°
Mean Solar Zenith Angle 86.20°
Mean Glint Angle57.30°
Water Fraction0.00
Total Pixel Area 19.80 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Polk County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 00:36:51UTC
Radiative Center (Lat, Lon): 41.849724°, -93.398331°
Nearby Counties (meeting notification criteria):
  • Polk County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power9.34 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)288.74 K
Observed - Background BT (3.9 um)3.91 K
BT Anomaly (3.9 um)5.63 K
Maximum Observed - Clear RTM BT (3.9 um)3.88 K
Maximum Observed BTD (3.9-10/11/12 um)3.94 K
Observed - Background BTD (3.9-10/11/12 um)3.97 K
BTD Anomaly (3.9-10/11/12 um)11.28 K
Similar Pixel Count1
BT Time Tendency (3.9 um)3.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.43
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power9.34 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.00°
Mean Solar Zenith Angle 86.70°
Mean Glint Angle58.10°
Water Fraction0.00
Total Pixel Area 6.50 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) KS
Country/Countries United States
County/Locality(s) Pottawatomie County, KS
NWS WFO Topeka KS
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 00:36:50UTC
Radiative Center (Lat, Lon): 39.324722°, -96.077774°
Nearby Counties (meeting notification criteria):
  • Pottawatomie County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power19.42 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)293.24 K
Observed - Background BT (3.9 um)4.11 K
BT Anomaly (3.9 um)13.22 K
Maximum Observed - Clear RTM BT (3.9 um)5.76 K
Maximum Observed BTD (3.9-10/11/12 um)5.68 K
Observed - Background BTD (3.9-10/11/12 um)4.27 K
BTD Anomaly (3.9-10/11/12 um)5.72 K
Similar Pixel Count2
BT Time Tendency (3.9 um)0.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.40
Fraction of Surrounding Red Channel Pixels that are Brighter0.87
Maximum Radiative Power10.81 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 50.60°
Mean Solar Zenith Angle 85.30°
Mean Glint Angle55.30°
Water Fraction0.00
Total Pixel Area 12.60 km2
Latest Satellite Imagery:
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