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Wildfire Notification Report

Date: 2026-04-21
Time: 18:46:17
Production Date and Time: 2026-04-21 18:51:15 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261111846177_e20261111848550_c20261111849012.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261111841177_e20261111843550_c20261111844031.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) Meagher County, MT
NWS WFO Great Falls MT
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:46:19UTC
Radiative Center (Lat, Lon): 46.304443°, -110.738609°
Nearby Counties (meeting notification criteria):
  • Meagher County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power18.88 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)308.08 K
Observed - Background BT (3.9 um)2.94 K
BT Anomaly (3.9 um)2.11 K
Maximum Observed - Clear RTM BT (3.9 um)12.16 K
Maximum Observed BTD (3.9-10/11/12 um)12.81 K
Observed - Background BTD (3.9-10/11/12 um)2.74 K
BTD Anomaly (3.9-10/11/12 um)3.76 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.10 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.81
Fraction of Surrounding Red Channel Pixels that are Brighter0.97
Maximum Radiative Power18.88 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 64.00°
Mean Solar Zenith Angle 35.60°
Mean Glint Angle95.60°
Water Fraction0.00
Total Pixel Area 9.10 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MN
Country/Countries United States
County/Locality(s) Steele County, MN
NWS WFO Twin Cities/Chanhassen MN
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:46:21UTC
Radiative Center (Lat, Lon): 43.857224°, -93.212219°
Nearby Counties (meeting notification criteria):
  • Steele County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power35.66 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)317.65 K
Observed - Background BT (3.9 um)3.03 K
BT Anomaly (3.9 um)2.66 K
Maximum Observed - Clear RTM BT (3.9 um)22.05 K
Maximum Observed BTD (3.9-10/11/12 um)14.95 K
Observed - Background BTD (3.9-10/11/12 um)2.80 K
BTD Anomaly (3.9-10/11/12 um)6.50 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.00 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.66
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power18.76 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 54.00°
Mean Solar Zenith Angle 33.20°
Mean Glint Angle81.00°
Water Fraction0.00
Total Pixel Area 13.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) WI
Country/Countries United States
County/Locality(s) Sauk County, WI
NWS WFO Milwaukee/Sullivan WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:46:21UTC
Radiative Center (Lat, Lon): 43.547779°, -89.634720°
Nearby Counties (meeting notification criteria):
  • Sauk County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power17.06 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)306.51 K
Observed - Background BT (3.9 um)2.65 K
BT Anomaly (3.9 um)1.46 K
Maximum Observed - Clear RTM BT (3.9 um)15.12 K
Maximum Observed BTD (3.9-10/11/12 um)12.48 K
Observed - Background BTD (3.9-10/11/12 um)3.11 K
BTD Anomaly (3.9-10/11/12 um)2.70 K
Similar Pixel Count24
BT Time Tendency (3.9 um)3.00 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 Power17.06 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.60°
Mean Solar Zenith Angle 33.70°
Mean Glint Angle79.60°
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) Scott County, IA
NWS WFO Quad Cities IL
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:46:51UTC
Radiative Center (Lat, Lon): 41.711388°, -90.334999°
Nearby Counties (meeting notification criteria):
  • Scott County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power22.67 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)306.80 K
Observed - Background BT (3.9 um)4.23 K
BT Anomaly (3.9 um)1.90 K
Maximum Observed - Clear RTM BT (3.9 um)14.74 K
Maximum Observed BTD (3.9-10/11/12 um)19.24 K
Observed - Background BTD (3.9-10/11/12 um)4.85 K
BTD Anomaly (3.9-10/11/12 um)2.02 K
Similar Pixel Count23
BT Time Tendency (3.9 um)1.40 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 Power22.67 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 50.90°
Mean Solar Zenith Angle 31.80°
Mean Glint Angle76.00°
Water Fraction0.00
Total Pixel Area 6.30 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Jasper County, IA
NWS WFO Des Moines IA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:46:51UTC
Radiative Center (Lat, Lon): 41.550278°, -92.998886°
Nearby Counties (meeting notification criteria):
  • Jasper County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power28.42 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)312.45 K
Observed - Background BT (3.9 um)4.87 K
BT Anomaly (3.9 um)1.96 K
Maximum Observed - Clear RTM BT (3.9 um)17.45 K
Maximum Observed BTD (3.9-10/11/12 um)17.71 K
Observed - Background BTD (3.9-10/11/12 um)6.05 K
BTD Anomaly (3.9-10/11/12 um)2.38 K
Similar Pixel Count17
BT Time Tendency (3.9 um)2.80 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.12
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power28.42 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 51.60°
Mean Solar Zenith Angle 31.00°
Mean Glint Angle76.30°
Water Fraction0.00
Total Pixel Area 6.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) SC
Country/Countries United States
County/Locality(s) Horry County, SC
NWS WFO Wilmington NC
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:47:22UTC
Radiative Center (Lat, Lon): 33.751667°, -78.864441°
Nearby Counties (meeting notification criteria):
  • Horry County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power17.28 MW
Map:
Additional Information
Notification Status New Feature
Type of EventLikely an Urban Source
Event Priority Ranking4
Maximum Observed BT (3.9 um)309.73 K
Observed - Background BT (3.9 um)6.33 K
BT Anomaly (3.9 um)3.18 K
Maximum Observed - Clear RTM BT (3.9 um)16.10 K
Maximum Observed BTD (3.9-10/11/12 um)14.89 K
Observed - Background BTD (3.9-10/11/12 um)5.62 K
BTD Anomaly (3.9-10/11/12 um)4.06 K
Similar Pixel Count9
BT Time Tendency (3.9 um)3.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.90
Fraction of Surrounding Red Channel Pixels that are Brighter0.68
Maximum Radiative Power17.28 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 39.60°
Mean Solar Zenith Angle 30.60°
Mean Glint Angle61.30°
Water Fraction0.00
Total Pixel Area 5.20 km2
Latest Satellite Imagery:
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