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Wildfire Notification Report

Date: 2026-04-21
Time: 23:31:17
Production Date and Time: 2026-04-21 23:36:07 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261112331177_e20261112333551_c20261112334001.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261112326177_e20261112328551_c20261112329036.nc
Number Of Thermal Anomaly Notifications: 10
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Mahnomen County, MN
NWS WFO Grand Forks ND
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:31:21UTC
Radiative Center (Lat, Lon): 47.192501°, -95.787781°
Nearby Counties (meeting notification criteria):
  • Mahnomen County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power6.20 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)293.44 K
Observed - Background BT (3.9 um)2.81 K
BT Anomaly (3.9 um)2.66 K
Maximum Observed - Clear RTM BT (3.9 um)8.04 K
Maximum Observed BTD (3.9-10/11/12 um)6.74 K
Observed - Background BTD (3.9-10/11/12 um)2.03 K
BTD Anomaly (3.9-10/11/12 um)3.99 K
Similar Pixel Count18
BT Time Tendency (3.9 um)1.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.83
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power6.20 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 58.20°
Mean Solar Zenith Angle 73.00°
Mean Glint Angle59.40°
Water Fraction0.00
Total Pixel Area 7.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Polk County, WI
NWS WFO Twin Cities/Chanhassen MN
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:31:21UTC
Radiative Center (Lat, Lon): 45.252777°, -92.284447°
Nearby Counties (meeting notification criteria):
  • Polk County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power12.48 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)292.07 K
Observed - Background BT (3.9 um)2.02 K
BT Anomaly (3.9 um)4.63 K
Maximum Observed - Clear RTM BT (3.9 um)7.37 K
Maximum Observed BTD (3.9-10/11/12 um)4.94 K
Observed - Background BTD (3.9-10/11/12 um)2.13 K
BTD Anomaly (3.9-10/11/12 um)8.61 K
Similar Pixel Count3
BT Time Tendency (3.9 um)1.60 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 Power6.32 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 55.10°
Mean Solar Zenith Angle 75.40°
Mean Glint Angle61.20°
Water Fraction0.00
Total Pixel Area 14.00 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 (Clear)
Mean Object Date/Time2026-04-21 23:31:20UTC
Radiative Center (Lat, Lon): 45.201946°, -96.038887°
Nearby Counties (meeting notification criteria):
  • Swift County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power21.70 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)297.60 K
Observed - Background BT (3.9 um)5.85 K
BT Anomaly (3.9 um)6.41 K
Maximum Observed - Clear RTM BT (3.9 um)5.99 K
Maximum Observed BTD (3.9-10/11/12 um)15.63 K
Observed - Background BTD (3.9-10/11/12 um)5.76 K
BTD Anomaly (3.9-10/11/12 um)4.66 K
Similar Pixel Count13
BT Time Tendency (3.9 um)2.20 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 Power21.70 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 56.30°
Mean Solar Zenith Angle 72.80°
Mean Glint Angle58.00°
Water Fraction0.00
Total Pixel Area 7.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Monroe County, WI
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:31:21UTC
Radiative Center (Lat, Lon): 43.849445°, -90.633057°
Nearby Counties (meeting notification criteria):
  • Monroe County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power11.03 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)295.14 K
Observed - Background BT (3.9 um)2.96 K
BT Anomaly (3.9 um)3.78 K
Maximum Observed - Clear RTM BT (3.9 um)8.57 K
Maximum Observed BTD (3.9-10/11/12 um)6.99 K
Observed - Background BTD (3.9-10/11/12 um)3.22 K
BTD Anomaly (3.9-10/11/12 um)9.30 K
Similar Pixel Count3
BT Time Tendency (3.9 um)2.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.41
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power11.03 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.20°
Mean Solar Zenith Angle 76.70°
Mean Glint Angle62.10°
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) Allamakee County, IA
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:31:21UTC
Radiative Center (Lat, Lon): 43.273613°, -91.119720°
Nearby Counties (meeting notification criteria):
  • Allamakee County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power17.78 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.35 K
Observed - Background BT (3.9 um)5.56 K
BT Anomaly (3.9 um)8.66 K
Maximum Observed - Clear RTM BT (3.9 um)11.40 K
Maximum Observed BTD (3.9-10/11/12 um)10.07 K
Observed - Background BTD (3.9-10/11/12 um)5.48 K
BTD Anomaly (3.9-10/11/12 um)16.47 K
Similar Pixel Count3
BT Time Tendency (3.9 um)4.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.54
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power17.78 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.70°
Mean Solar Zenith Angle 76.40°
Mean Glint Angle61.40°
Water Fraction0.00
Total Pixel Area 6.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Clay County, IA
NWS WFO Sioux Falls SD
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:31:20UTC
Radiative Center (Lat, Lon): 43.099167°, -94.936943°
Nearby Counties (meeting notification criteria):
  • Clay County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power194.05 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)310.14 K
Observed - Background BT (3.9 um)12.51 K
BT Anomaly (3.9 um)18.76 K
Maximum Observed - Clear RTM BT (3.9 um)16.69 K
Maximum Observed BTD (3.9-10/11/12 um)17.38 K
Observed - Background BTD (3.9-10/11/12 um)13.11 K
BTD Anomaly (3.9-10/11/12 um)68.70 K
Similar Pixel Count4
BT Time Tendency (3.9 um)10.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.16
Fraction of Surrounding Red Channel Pixels that are Brighter0.70
Maximum Radiative Power56.78 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.90°
Mean Solar Zenith Angle 73.60°
Mean Glint Angle57.70°
Water Fraction0.00
Total Pixel Area 27.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Bremer County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:31:51UTC
Radiative Center (Lat, Lon): 42.779446°, -92.090836°
Nearby Counties (meeting notification criteria):
  • Bremer County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power13.51 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)296.97 K
Observed - Background BT (3.9 um)2.09 K
BT Anomaly (3.9 um)3.81 K
Maximum Observed - Clear RTM BT (3.9 um)7.78 K
Maximum Observed BTD (3.9-10/11/12 um)6.87 K
Observed - Background BTD (3.9-10/11/12 um)1.77 K
BTD Anomaly (3.9-10/11/12 um)3.69 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.75
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power6.84 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.50°
Mean Solar Zenith Angle 75.70°
Mean Glint Angle60.30°
Water Fraction0.00
Total Pixel Area 13.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Hardin County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:31:51UTC
Radiative Center (Lat, Lon): 42.266666°, -93.074448°
Nearby Counties (meeting notification criteria):
  • Hardin County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power7.56 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.39 K
Observed - Background BT (3.9 um)1.98 K
BT Anomaly (3.9 um)3.80 K
Maximum Observed - Clear RTM BT (3.9 um)7.66 K
Maximum Observed BTD (3.9-10/11/12 um)7.42 K
Observed - Background BTD (3.9-10/11/12 um)2.25 K
BTD Anomaly (3.9-10/11/12 um)5.44 K
Similar Pixel Count19
BT Time Tendency (3.9 um)1.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.26
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power7.56 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.30°
Mean Solar Zenith Angle 75.00°
Mean Glint Angle59.10°
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) Washington County, IA
NWS WFO Quad Cities IL
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:31:51UTC
Radiative Center (Lat, Lon): 41.393333°, -91.817780°
Nearby Counties (meeting notification criteria):
  • Washington County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power34.69 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.00 K
Observed - Background BT (3.9 um)3.27 K
BT Anomaly (3.9 um)2.36 K
Maximum Observed - Clear RTM BT (3.9 um)8.12 K
Maximum Observed BTD (3.9-10/11/12 um)7.47 K
Observed - Background BTD (3.9-10/11/12 um)3.07 K
BTD Anomaly (3.9-10/11/12 um)2.18 K
Similar Pixel Count4
BT Time Tendency (3.9 um)1.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.74
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power12.58 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 51.00°
Mean Solar Zenith Angle 75.90°
Mean Glint Angle60.00°
Water Fraction0.00
Total Pixel Area 25.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) Unknown
Country/Countries Dominican Republic
County/Locality(s) Unknown, Unknown
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 23:33:53UTC
Radiative Center (Lat, Lon): 18.579445°, -69.179169°
Nearby Counties (meeting notification criteria):
  • Unknown (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power10.39 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)5.08 K
BT Anomaly (3.9 um)4.49 K
Maximum Observed - Clear RTM BT (3.9 um)5.20 K
Maximum Observed BTD (3.9-10/11/12 um)8.94 K
Observed - Background BTD (3.9-10/11/12 um)4.96 K
BTD Anomaly (3.9-10/11/12 um)7.93 K
Similar Pixel Count3
BT Time Tendency (3.9 um)2.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.50
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power10.39 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 23.00°
Mean Solar Zenith Angle 99.30°
Mean Glint Angle99.60°
Water Fraction0.00
Total Pixel Area 4.30 km2
Latest Satellite Imagery:
  • None Available
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