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Wildfire Notification Report

Date: 2026-04-20
Time: 18:06:17
Production Date and Time: 2026-04-20 18:11:07 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261101806176_e20261101808550_c20261101809008.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261101801176_e20261101803549_c20261101804037.nc
Number Of Thermal Anomaly Notifications: 6
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Possible Wildfire

Basic Information
State/Province(s) MT
Country/Countries United States
County/Locality(s) Teton County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-20 18:06:19UTC
Radiative Center (Lat, Lon): 47.668610°, -111.984726°
Nearby Counties (meeting notification criteria):
  • Teton County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power54.44 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)315.81 K
Observed - Background BT (3.9 um)7.84 K
BT Anomaly (3.9 um)10.60 K
Maximum Observed - Clear RTM BT (3.9 um)20.93 K
Maximum Observed BTD (3.9-10/11/12 um)16.52 K
Observed - Background BTD (3.9-10/11/12 um)6.03 K
BTD Anomaly (3.9-10/11/12 um)11.32 K
Similar Pixel Count0
BT Time Tendency (3.9 um)5.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder1.00
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power54.44 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 65.70°
Mean Solar Zenith Angle 40.20°
Mean Glint Angle104.90°
Water Fraction0.00
Total Pixel Area 9.70 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/Time2026-04-20 18:06:21UTC
Radiative Center (Lat, Lon): 43.944168°, -90.745834°
Nearby Counties (meeting notification criteria):
  • Monroe County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power5.99 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)298.95 K
Observed - Background BT (3.9 um)3.82 K
BT Anomaly (3.9 um)3.41 K
Maximum Observed - Clear RTM BT (3.9 um)15.74 K
Maximum Observed BTD (3.9-10/11/12 um)11.45 K
Observed - Background BTD (3.9-10/11/12 um)2.55 K
BTD Anomaly (3.9-10/11/12 um)3.62 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.95
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power5.99 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.30°
Mean Solar Zenith Angle 32.80°
Mean Glint Angle83.90°
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) Richland County, WI
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 18:06:21UTC
Radiative Center (Lat, Lon): 43.395832°, -90.413887°
Nearby Counties (meeting notification criteria):
  • Richland County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power4.62 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)297.20 K
Observed - Background BT (3.9 um)2.64 K
BT Anomaly (3.9 um)3.56 K
Maximum Observed - Clear RTM BT (3.9 um)13.97 K
Maximum Observed BTD (3.9-10/11/12 um)11.40 K
Observed - Background BTD (3.9-10/11/12 um)2.18 K
BTD Anomaly (3.9-10/11/12 um)2.80 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.60 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 Power4.62 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.60°
Mean Solar Zenith Angle 32.20°
Mean Glint Angle82.70°
Water Fraction0.00
Total Pixel Area 6.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Jefferson County, WI
NWS WFO Milwaukee/Sullivan WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 18:06:21UTC
Radiative Center (Lat, Lon): 43.139721°, -88.896385°
Nearby Counties (meeting notification criteria):
  • Jefferson County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power5.12 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)297.95 K
Observed - Background BT (3.9 um)1.82 K
BT Anomaly (3.9 um)1.45 K
Maximum Observed - Clear RTM BT (3.9 um)14.36 K
Maximum Observed BTD (3.9-10/11/12 um)11.02 K
Observed - Background BTD (3.9-10/11/12 um)1.81 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 Colder0.53
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power5.12 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 51.90°
Mean Solar Zenith Angle 32.00°
Mean Glint Angle81.70°
Water Fraction0.00
Total Pixel Area 6.50 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IL
Country/Countries United States
County/Locality(s) Lake County, IL
NWS WFO Chicago IL
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 18:06:51UTC
Radiative Center (Lat, Lon): 42.325554°, -87.968056°
Nearby Counties (meeting notification criteria):
  • Lake County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power47.73 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)303.57 K
Observed - Background BT (3.9 um)8.73 K
BT Anomaly (3.9 um)6.09 K
Maximum Observed - Clear RTM BT (3.9 um)19.37 K
Maximum Observed BTD (3.9-10/11/12 um)16.87 K
Observed - Background BTD (3.9-10/11/12 um)9.08 K
BTD Anomaly (3.9-10/11/12 um)11.62 K
Similar Pixel Count3
BT Time Tendency (3.9 um)7.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.44
Fraction of Surrounding Red Channel Pixels that are Brighter0.94
Maximum Radiative Power28.67 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 50.80°
Mean Solar Zenith Angle 31.30°
Mean Glint Angle79.80°
Water Fraction0.00
Total Pixel Area 12.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) GA
Country/Countries United States
County/Locality(s) Burke County, GA
NWS WFO Columbia SC
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-20 18:07:22UTC
Radiative Center (Lat, Lon): 33.230278°, -82.126663°
Nearby Counties (meeting notification criteria):
  • Burke County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power6.00 MW
Map:
Additional Information
Notification Status New Feature
Type of EventElevated Fire Risk (NWS/SPC)
Event Priority Ranking3
Maximum Observed BT (3.9 um)309.34 K
Observed - Background BT (3.9 um)2.52 K
BT Anomaly (3.9 um)1.35 K
Maximum Observed - Clear RTM BT (3.9 um)12.76 K
Maximum Observed BTD (3.9-10/11/12 um)9.41 K
Observed - Background BTD (3.9-10/11/12 um)2.05 K
BTD Anomaly (3.9-10/11/12 um)2.85 K
Similar Pixel Count15
BT Time Tendency (3.9 um)2.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.68
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power6.00 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 39.50°
Mean Solar Zenith Angle 23.80°
Mean Glint Angle60.00°
Water Fraction0.00
Total Pixel Area 5.20 km2
Latest Satellite Imagery:
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