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Wildfire Notification Report

Date: 2026-04-21
Time: 15:16:17
Production Date and Time: 2026-04-21 15:21:02 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261111516177_e20261111518550_c20261111519031.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261111511177_e20261111513550_c20261111514030.nc
Number Of Thermal Anomaly Notifications: 5
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Possible Wildfire

Basic Information
State/Province(s) SD
Country/Countries United States
County/Locality(s) Hamlin County, SD
NWS WFO Aberdeen SD
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-21 15:16:20UTC
Radiative Center (Lat, Lon): 44.743610°, -97.408890°
Nearby Counties (meeting notification criteria):
  • Hamlin County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power61.28 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)308.30 K
Observed - Background BT (3.9 um)8.19 K
BT Anomaly (3.9 um)8.22 K
Maximum Observed - Clear RTM BT (3.9 um)19.50 K
Maximum Observed BTD (3.9-10/11/12 um)16.75 K
Observed - Background BTD (3.9-10/11/12 um)7.30 K
BTD Anomaly (3.9-10/11/12 um)17.67 K
Similar Pixel Count0
BT Time Tendency (3.9 um)4.00 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 Power34.09 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 56.40°
Mean Solar Zenith Angle 52.60°
Mean Glint Angle101.40°
Water Fraction0.00
Total Pixel Area 14.50 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IA
Country/Countries United States
County/Locality(s) Clayton County, IA
NWS WFO La Crosse WI
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 15:16:51UTC
Radiative Center (Lat, Lon): 42.876945°, -91.572777°
Nearby Counties (meeting notification criteria):
  • Clayton County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power8.69 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)301.54 K
Observed - Background BT (3.9 um)3.06 K
BT Anomaly (3.9 um)2.39 K
Maximum Observed - Clear RTM BT (3.9 um)14.13 K
Maximum Observed BTD (3.9-10/11/12 um)11.80 K
Observed - Background BTD (3.9-10/11/12 um)2.68 K
BTD Anomaly (3.9-10/11/12 um)2.80 K
Similar Pixel Count24
BT Time Tendency (3.9 um)2.30 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.76
Fraction of Surrounding Red Channel Pixels that are Brighter0.98
Maximum Radiative Power8.69 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.50°
Mean Solar Zenith Angle 48.00°
Mean Glint Angle93.00°
Water Fraction0.00
Total Pixel Area 6.60 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) IL
Country/Countries United States
County/Locality(s) Schuyler County, IL
NWS WFO Lincoln IL
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 15:16:51UTC
Radiative Center (Lat, Lon): 40.266945°, -90.648056°
Nearby Counties (meeting notification criteria):
  • Schuyler County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power8.70 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)3.65 K
BT Anomaly (3.9 um)2.42 K
Maximum Observed - Clear RTM BT (3.9 um)12.14 K
Maximum Observed BTD (3.9-10/11/12 um)17.05 K
Observed - Background BTD (3.9-10/11/12 um)4.00 K
BTD Anomaly (3.9-10/11/12 um)2.45 K
Similar Pixel Count20
BT Time Tendency (3.9 um)0.70 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.29
Fraction of Surrounding Red Channel Pixels that are Brighter0.95
Maximum Radiative Power8.70 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 49.50°
Mean Solar Zenith Angle 46.20°
Mean Glint Angle88.30°
Water Fraction0.00
Total Pixel Area 6.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) MS
Country/Countries United States
County/Locality(s) Wayne County, MS
NWS WFO Mobile AL
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 15:17:21UTC
Radiative Center (Lat, Lon): 31.553333°, -88.663330°
Nearby Counties (meeting notification criteria):
  • Wayne County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power8.02 MW
Map:
Additional Information
Notification Status New Feature
Type of EventOil/Gas
Event Priority Ranking5
Maximum Observed BT (3.9 um)297.95 K
Observed - Background BT (3.9 um)3.03 K
BT Anomaly (3.9 um)4.00 K
Maximum Observed - Clear RTM BT (3.9 um)6.97 K
Maximum Observed BTD (3.9-10/11/12 um)9.74 K
Observed - Background BTD (3.9-10/11/12 um)3.50 K
BTD Anomaly (3.9-10/11/12 um)3.49 K
Similar Pixel Count15
BT Time Tendency (3.9 um)0.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.55
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power8.02 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 39.70°
Mean Solar Zenith Angle 41.30°
Mean Glint Angle73.70°
Water Fraction0.00
Total Pixel Area 5.20 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) FL
Country/Countries United States
County/Locality(s) Palm Beach County, FL
NWS WFO Miami FL
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-21 15:17:52UTC
Radiative Center (Lat, Lon): 26.750278°, -80.666389°
Nearby Counties (meeting notification criteria):
  • Palm Beach County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power528.83 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)337.66 K
Observed - Background BT (3.9 um)33.85 K
BT Anomaly (3.9 um)14.06 K
Maximum Observed - Clear RTM BT (3.9 um)43.03 K
Maximum Observed BTD (3.9-10/11/12 um)42.89 K
Observed - Background BTD (3.9-10/11/12 um)33.96 K
BTD Anomaly (3.9-10/11/12 um)17.89 K
Similar Pixel Count0
BT Time Tendency (3.9 um)33.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.65
Fraction of Surrounding Red Channel Pixels that are Brighter0.68
Maximum Radiative Power213.11 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 32.00°
Mean Solar Zenith Angle 33.10°
Mean Glint Angle56.50°
Water Fraction0.00
Total Pixel Area 18.90 km2
Latest Satellite Imagery:
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