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Wildfire Notification Report

Date: 2026-04-20
Time: 16:36:17
Production Date and Time: 2026-04-20 16:41:09 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261101636176_e20261101638549_c20261101638596.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261101631176_e20261101633549_c20261101634005.nc
Number Of Thermal Anomaly Notifications: 8
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Hill County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 16:36:19UTC
Radiative Center (Lat, Lon): 48.695278°, -109.774719°
Nearby Counties (meeting notification criteria):
  • Hill County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power38.12 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)307.67 K
Observed - Background BT (3.9 um)5.42 K
BT Anomaly (3.9 um)3.71 K
Maximum Observed - Clear RTM BT (3.9 um)17.47 K
Maximum Observed BTD (3.9-10/11/12 um)18.41 K
Observed - Background BTD (3.9-10/11/12 um)5.52 K
BTD Anomaly (3.9-10/11/12 um)5.43 K
Similar Pixel Count25
BT Time Tendency (3.9 um)3.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.65
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power38.12 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 65.40°
Mean Solar Zenith Angle 50.30°
Mean Glint Angle114.50°
Water Fraction0.00
Total Pixel Area 9.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Burnett County, WI
NWS WFO Duluth MN
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-20 16:36:21UTC
Radiative Center (Lat, Lon): 45.863609°, -92.651947°
Nearby Counties (meeting notification criteria):
  • Burnett County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power24.86 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)8.63 K
BT Anomaly (3.9 um)5.63 K
Maximum Observed - Clear RTM BT (3.9 um)10.54 K
Maximum Observed BTD (3.9-10/11/12 um)21.82 K
Observed - Background BTD (3.9-10/11/12 um)8.18 K
BTD Anomaly (3.9-10/11/12 um)12.27 K
Similar Pixel Count0
BT Time Tendency (3.9 um)9.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.93
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power24.86 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 55.80°
Mean Solar Zenith Angle 39.90°
Mean Glint Angle94.90°
Water Fraction0.00
Total Pixel Area 7.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Winona County, MN
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 16:36:21UTC
Radiative Center (Lat, Lon): 43.936111°, -91.384163°
Nearby Counties (meeting notification criteria):
  • Winona County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power10.67 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)295.81 K
Observed - Background BT (3.9 um)2.21 K
BT Anomaly (3.9 um)1.59 K
Maximum Observed - Clear RTM BT (3.9 um)15.82 K
Maximum Observed BTD (3.9-10/11/12 um)12.44 K
Observed - Background BTD (3.9-10/11/12 um)3.32 K
BTD Anomaly (3.9-10/11/12 um)3.72 K
Similar Pixel Count15
BT Time Tendency (3.9 um)2.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.20
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power10.67 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.50°
Mean Solar Zenith Angle 37.80°
Mean Glint Angle90.50°
Water Fraction0.00
Total Pixel Area 6.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Fillmore County, MN
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 16:36:21UTC
Radiative Center (Lat, Lon): 43.524166°, -92.337219°
Nearby Counties (meeting notification criteria):
  • Fillmore County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power27.68 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)301.39 K
Observed - Background BT (3.9 um)5.01 K
BT Anomaly (3.9 um)3.71 K
Maximum Observed - Clear RTM BT (3.9 um)20.16 K
Maximum Observed BTD (3.9-10/11/12 um)19.77 K
Observed - Background BTD (3.9-10/11/12 um)5.66 K
BTD Anomaly (3.9-10/11/12 um)4.61 K
Similar Pixel Count24
BT Time Tendency (3.9 um)0.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.16
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power16.37 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.40°
Mean Solar Zenith Angle 37.90°
Mean Glint Angle90.40°
Water Fraction0.00
Total Pixel Area 13.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Dane County, WI
NWS WFO Milwaukee/Sullivan WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 16:36:21UTC
Radiative Center (Lat, Lon): 43.128887°, -89.490555°
Nearby Counties (meeting notification criteria):
  • Dane County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power16.35 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)299.12 K
Observed - Background BT (3.9 um)4.04 K
BT Anomaly (3.9 um)3.19 K
Maximum Observed - Clear RTM BT (3.9 um)18.60 K
Maximum Observed BTD (3.9-10/11/12 um)14.36 K
Observed - Background BTD (3.9-10/11/12 um)4.91 K
BTD Anomaly (3.9-10/11/12 um)5.16 K
Similar Pixel Count12
BT Time Tendency (3.9 um)5.80 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 Power16.35 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.10°
Mean Solar Zenith Angle 36.40°
Mean Glint Angle87.60°
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) Appanoose County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 16:36:51UTC
Radiative Center (Lat, Lon): 40.785278°, -92.831665°
Nearby Counties (meeting notification criteria):
  • Appanoose County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power4.67 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)1.53 K
BT Anomaly (3.9 um)1.88 K
Maximum Observed - Clear RTM BT (3.9 um)13.36 K
Maximum Observed BTD (3.9-10/11/12 um)9.35 K
Observed - Background BTD (3.9-10/11/12 um)1.67 K
BTD Anomaly (3.9-10/11/12 um)3.31 K
Similar Pixel Count24
BT Time Tendency (3.9 um)0.70 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 Power4.67 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 50.80°
Mean Solar Zenith Angle 36.10°
Mean Glint Angle85.90°
Water Fraction0.00
Total Pixel Area 6.30 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) KY
Country/Countries United States
County/Locality(s) Hart County, KY
NWS WFO Louisville KY
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 16:36:51UTC
Radiative Center (Lat, Lon): 37.263332°, -85.884720°
Nearby Counties (meeting notification criteria):
  • Hart County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power7.19 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)301.70 K
Observed - Background BT (3.9 um)2.70 K
BT Anomaly (3.9 um)1.17 K
Maximum Observed - Clear RTM BT (3.9 um)14.72 K
Maximum Observed BTD (3.9-10/11/12 um)10.15 K
Observed - Background BTD (3.9-10/11/12 um)2.39 K
BTD Anomaly (3.9-10/11/12 um)2.47 K
Similar Pixel Count17
BT Time Tendency (3.9 um)3.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.67
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power7.19 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 44.90°
Mean Solar Zenith Angle 30.00°
Mean Glint Angle74.00°
Water Fraction0.00
Total Pixel Area 5.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) Coahuila de Zaragoza
Country/Countries Mexico
County/Locality(s) Castaños, Coahuila de Zaragoza
NWS WFO N/A
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 16:37:49UTC
Radiative Center (Lat, Lon): 26.466944°, -101.452499°
Nearby Counties (meeting notification criteria):
  • Castaños (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power29.08 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)305.09 K
Observed - Background BT (3.9 um)7.43 K
BT Anomaly (3.9 um)2.96 K
Maximum Observed - Clear RTM BT (3.9 um)16.01 K
Maximum Observed BTD (3.9-10/11/12 um)24.72 K
Observed - Background BTD (3.9-10/11/12 um)6.92 K
BTD Anomaly (3.9-10/11/12 um)3.10 K
Similar Pixel Count23
BT Time Tendency (3.9 um)1.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.55
Fraction of Surrounding Red Channel Pixels that are Brighter0.70
Maximum Radiative Power29.08 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 42.70°
Mean Solar Zenith Angle 33.80°
Mean Glint Angle75.00°
Water Fraction0.00
Total Pixel Area 5.40 km2
Latest Satellite Imagery:
  • None Available
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