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Wildfire Notification Report

Date: 2026-04-21
Time: 23:56:17
Production Date and Time: 2026-04-22 00:00:59 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261112356178_e20261112358551_c20261112359017.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261112351177_e20261112353551_c20261112354039.nc
Number Of Thermal Anomaly Notifications: 7
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Possible Wildfire

Basic Information
State/Province(s) ND
Country/Countries United States
County/Locality(s) Stutsman County, ND
NWS WFO Bismarck ND
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:56:20UTC
Radiative Center (Lat, Lon): 46.780277°, -99.075836°
Nearby Counties (meeting notification criteria):
  • Stutsman County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power10.62 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)293.13 K
Observed - Background BT (3.9 um)3.26 K
BT Anomaly (3.9 um)3.88 K
Maximum Observed - Clear RTM BT (3.9 um)4.44 K
Maximum Observed BTD (3.9-10/11/12 um)8.95 K
Observed - Background BTD (3.9-10/11/12 um)3.88 K
BTD Anomaly (3.9-10/11/12 um)4.16 K
Similar Pixel Count6
BT Time Tendency (3.9 um)2.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.29
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power10.62 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 59.00°
Mean Solar Zenith Angle 75.00°
Mean Glint Angle54.80°
Water Fraction0.00
Total Pixel Area 7.80 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Mitchell County, IA
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:56:21UTC
Radiative Center (Lat, Lon): 43.219166°, -92.847221°
Nearby Counties (meeting notification criteria):
  • Mitchell County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power7.98 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)295.34 K
Observed - Background BT (3.9 um)2.51 K
BT Anomaly (3.9 um)3.23 K
Maximum Observed - Clear RTM BT (3.9 um)5.91 K
Maximum Observed BTD (3.9-10/11/12 um)5.85 K
Observed - Background BTD (3.9-10/11/12 um)2.58 K
BTD Anomaly (3.9-10/11/12 um)5.38 K
Similar Pixel Count4
BT Time Tendency (3.9 um)1.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.39
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power7.98 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.20°
Mean Solar Zenith Angle 79.60°
Mean Glint Angle59.00°
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) Floyd County, IA
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:56:21UTC
Radiative Center (Lat, Lon): 43.099724°, -92.806114°
Nearby Counties (meeting notification criteria):
  • Floyd County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power16.99 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.86 K
Observed - Background BT (3.9 um)6.02 K
BT Anomaly (3.9 um)11.36 K
Maximum Observed - Clear RTM BT (3.9 um)9.24 K
Maximum Observed BTD (3.9-10/11/12 um)8.40 K
Observed - Background BTD (3.9-10/11/12 um)5.05 K
BTD Anomaly (3.9-10/11/12 um)17.73 K
Similar Pixel Count2
BT Time Tendency (3.9 um)3.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.98
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power16.99 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.10°
Mean Solar Zenith Angle 79.70°
Mean Glint Angle59.00°
Water Fraction0.00
Total Pixel Area 6.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Grant County, WI
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:56:51UTC
Radiative Center (Lat, Lon): 42.769165°, -90.992500°
Nearby Counties (meeting notification criteria):
  • Grant County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power45.75 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.30 K
Observed - Background BT (3.9 um)7.71 K
BT Anomaly (3.9 um)8.34 K
Maximum Observed - Clear RTM BT (3.9 um)11.54 K
Maximum Observed BTD (3.9-10/11/12 um)11.31 K
Observed - Background BTD (3.9-10/11/12 um)7.83 K
BTD Anomaly (3.9-10/11/12 um)11.48 K
Similar Pixel Count4
BT Time Tendency (3.9 um)5.50 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.36
Fraction of Surrounding Red Channel Pixels that are Brighter0.60
Maximum Radiative Power23.13 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.20°
Mean Solar Zenith Angle 81.10°
Mean Glint Angle60.90°
Water Fraction0.00
Total Pixel Area 13.00 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Story County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:56:51UTC
Radiative Center (Lat, Lon): 42.001945°, -93.642502°
Nearby Counties (meeting notification criteria):
  • Story County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power11.64 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.56 K
Observed - Background BT (3.9 um)3.67 K
BT Anomaly (3.9 um)11.03 K
Maximum Observed - Clear RTM BT (3.9 um)7.10 K
Maximum Observed BTD (3.9-10/11/12 um)7.59 K
Observed - Background BTD (3.9-10/11/12 um)3.58 K
BTD Anomaly (3.9-10/11/12 um)14.21 K
Similar Pixel Count2
BT Time Tendency (3.9 um)2.50 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.56
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power11.64 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.30°
Mean Solar Zenith Angle 79.20°
Mean Glint Angle57.90°
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) Audubon County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:56:50UTC
Radiative Center (Lat, Lon): 41.629166°, -94.994164°
Nearby Counties (meeting notification criteria):
  • Audubon County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power27.63 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)299.74 K
Observed - Background BT (3.9 um)4.64 K
BT Anomaly (3.9 um)4.80 K
Maximum Observed - Clear RTM BT (3.9 um)7.22 K
Maximum Observed BTD (3.9-10/11/12 um)8.77 K
Observed - Background BTD (3.9-10/11/12 um)4.90 K
BTD Anomaly (3.9-10/11/12 um)5.49 K
Similar Pixel Count3
BT Time Tendency (3.9 um)4.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.23
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power27.63 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.40°
Mean Solar Zenith Angle 78.20°
Mean Glint Angle56.40°
Water Fraction0.00
Total Pixel Area 13.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Marion County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:56:51UTC
Radiative Center (Lat, Lon): 41.165279°, -93.276947°
Nearby Counties (meeting notification criteria):
  • Marion County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power10.27 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)296.88 K
Observed - Background BT (3.9 um)3.22 K
BT Anomaly (3.9 um)5.14 K
Maximum Observed - Clear RTM BT (3.9 um)6.19 K
Maximum Observed BTD (3.9-10/11/12 um)7.23 K
Observed - Background BTD (3.9-10/11/12 um)3.26 K
BTD Anomaly (3.9-10/11/12 um)2.87 K
Similar Pixel Count3
BT Time Tendency (3.9 um)1.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.51
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power10.27 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 51.30°
Mean Solar Zenith Angle 79.50°
Mean Glint Angle58.10°
Water Fraction0.00
Total Pixel Area 6.40 km2
Latest Satellite Imagery:
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