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Wildfire Notification Report

Date: 2026-04-21
Time: 16:01:17
Production Date and Time: 2026-04-21 16:06:07 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261111601177_e20261111603550_c20261111604003.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261111556177_e20261111558550_c20261111559011.nc
Number Of Thermal Anomaly Notifications: 7
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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 (Clear)
Mean Object Date/Time2026-04-21 16:01:19UTC
Radiative Center (Lat, Lon): 47.716946°, -111.762222°
Nearby Counties (meeting notification criteria):
  • Teton County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power15.03 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)305.37 K
Observed - Background BT (3.9 um)3.14 K
BT Anomaly (3.9 um)2.47 K
Maximum Observed - Clear RTM BT (3.9 um)13.84 K
Maximum Observed BTD (3.9-10/11/12 um)12.16 K
Observed - Background BTD (3.9-10/11/12 um)2.56 K
BTD Anomaly (3.9-10/11/12 um)5.82 K
Similar Pixel Count25
BT Time Tendency (3.9 um)2.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.76
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power15.03 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 65.60°
Mean Solar Zenith Angle 55.80°
Mean Glint Angle117.80°
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/Time2026-04-21 16:01:21UTC
Radiative Center (Lat, Lon): 44.033333°, -90.717781°
Nearby Counties (meeting notification criteria):
  • Monroe County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power30.86 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)309.07 K
Observed - Background BT (3.9 um)8.50 K
BT Anomaly (3.9 um)8.94 K
Maximum Observed - Clear RTM BT (3.9 um)21.29 K
Maximum Observed BTD (3.9-10/11/12 um)15.92 K
Observed - Background BTD (3.9-10/11/12 um)7.39 K
BTD Anomaly (3.9-10/11/12 um)12.36 K
Similar Pixel Count4
BT Time Tendency (3.9 um)5.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder1.00
Fraction of Surrounding Red Channel Pixels that are Brighter0.82
Maximum Radiative Power30.86 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.40°
Mean Solar Zenith Angle 41.50°
Mean Glint Angle91.80°
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/Time2026-04-21 16:01:21UTC
Radiative Center (Lat, Lon): 43.682777°, -91.804169°
Nearby Counties (meeting notification criteria):
  • Fillmore County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power11.58 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)305.84 K
Observed - Background BT (3.9 um)1.94 K
BT Anomaly (3.9 um)1.13 K
Maximum Observed - Clear RTM BT (3.9 um)17.10 K
Maximum Observed BTD (3.9-10/11/12 um)11.96 K
Observed - Background BTD (3.9-10/11/12 um)2.07 K
BTD Anomaly (3.9-10/11/12 um)2.14 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.44
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power11.58 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.40°
Mean Solar Zenith Angle 41.90°
Mean Glint Angle92.10°
Water Fraction0.00
Total Pixel Area 6.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) PA
Country/Countries United States
County/Locality(s) Dauphin County, PA
NWS WFO State College PA
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 16:01:52UTC
Radiative Center (Lat, Lon): 40.424446°, -76.721390°
Nearby Counties (meeting notification criteria):
  • Dauphin County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power7.94 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)2.44 K
BT Anomaly (3.9 um)1.58 K
Maximum Observed - Clear RTM BT (3.9 um)14.61 K
Maximum Observed BTD (3.9-10/11/12 um)10.72 K
Observed - Background BTD (3.9-10/11/12 um)3.06 K
BTD Anomaly (3.9-10/11/12 um)5.75 K
Similar Pixel Count18
BT Time Tendency (3.9 um)1.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.22
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power7.94 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 47.00°
Mean Solar Zenith Angle 32.20°
Mean Glint Angle76.40°
Water Fraction0.00
Total Pixel Area 5.90 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) NE
Country/Countries United States
County/Locality(s) Gage County, NE
NWS WFO Omaha/Valley NE
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 16:01:50UTC
Radiative Center (Lat, Lon): 40.159721°, -96.525002°
Nearby Counties (meeting notification criteria):
  • Gage County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power26.86 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)311.46 K
Observed - Background BT (3.9 um)4.45 K
BT Anomaly (3.9 um)3.49 K
Maximum Observed - Clear RTM BT (3.9 um)17.69 K
Maximum Observed BTD (3.9-10/11/12 um)16.06 K
Observed - Background BTD (3.9-10/11/12 um)5.03 K
BTD Anomaly (3.9-10/11/12 um)7.73 K
Similar Pixel Count19
BT Time Tendency (3.9 um)3.10 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 Power26.86 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 51.70°
Mean Solar Zenith Angle 42.60°
Mean Glint Angle91.00°
Water Fraction0.00
Total Pixel Area 6.40 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) KY
Country/Countries United States
County/Locality(s) Elliott County, KY
NWS WFO Jackson KY
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 16:01:52UTC
Radiative Center (Lat, Lon): 38.253613°, -83.153053°
Nearby Counties (meeting notification criteria):
  • Elliott County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power3.95 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)1.65 K
BT Anomaly (3.9 um)2.16 K
Maximum Observed - Clear RTM BT (3.9 um)11.81 K
Maximum Observed BTD (3.9-10/11/12 um)9.07 K
Observed - Background BTD (3.9-10/11/12 um)1.58 K
BTD Anomaly (3.9-10/11/12 um)2.31 K
Similar Pixel Count25
BT Time Tendency (3.9 um)0.60 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 Power3.95 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 45.30°
Mean Solar Zenith Angle 33.40°
Mean Glint Angle75.60°
Water Fraction0.00
Total Pixel Area 5.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) NC
Country/Countries United States
County/Locality(s) Swain County, NC
NWS WFO Greenville-Spartanburg SC
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 16:02:21UTC
Radiative Center (Lat, Lon): 35.516109°, -83.867500°
Nearby Counties (meeting notification criteria):
  • Swain County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power4.46 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)1.68 K
BT Anomaly (3.9 um)1.55 K
Maximum Observed - Clear RTM BT (3.9 um)13.12 K
Maximum Observed BTD (3.9-10/11/12 um)7.04 K
Observed - Background BTD (3.9-10/11/12 um)1.89 K
BTD Anomaly (3.9-10/11/12 um)3.05 K
Similar Pixel Count20
BT Time Tendency (3.9 um)0.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.60
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power4.46 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 42.50°
Mean Solar Zenith Angle 31.90°
Mean Glint Angle71.00°
Water Fraction0.00
Total Pixel Area 5.40 km2
Latest Satellite Imagery:
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