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Wildfire Notification Report

Date: 2026-04-21
Time: 18:41:17
Production Date and Time: 2026-04-21 18:46:21 UTC
Primary Instrument: GOES-19 ABI
Wmo Spacecraft Id: 666
Location/orbit: GEO
L1 File: OR_ABI-L1b-RadC-M6C14_G19_s20261111841177_e20261111843550_c20261111844031.nc
L1 File(s) - TemporalOR_ABI-L1b-RadC-M6C14_G19_s20261111836177_e20261111838550_c20261111838599.nc
Number Of Thermal Anomaly Notifications: 5
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Possible Wildfire

Basic Information
State/Province(s) WA
Country/Countries United States
County/Locality(s) Garfield County, WA
NWS WFO Spokane WA
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-21 18:41:19UTC
Radiative Center (Lat, Lon): 46.657501°, -117.516388°
Nearby Counties (meeting notification criteria):
  • Garfield County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power42.04 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)306.11 K
Observed - Background BT (3.9 um)6.37 K
BT Anomaly (3.9 um)3.74 K
Maximum Observed - Clear RTM BT (3.9 um)16.21 K
Maximum Observed BTD (3.9-10/11/12 um)18.25 K
Observed - Background BTD (3.9-10/11/12 um)6.36 K
BTD Anomaly (3.9-10/11/12 um)8.04 K
Similar Pixel Count0
BT Time Tendency (3.9 um)4.90 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.57
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power42.04 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 68.00°
Mean Solar Zenith Angle 37.90°
Mean Glint Angle103.00°
Water Fraction0.00
Total Pixel Area 10.70 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/Time2026-04-21 18:41:21UTC
Radiative Center (Lat, Lon): 43.430557°, -90.561668°
Nearby Counties (meeting notification criteria):
  • Richland 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)306.57 K
Observed - Background BT (3.9 um)2.86 K
BT Anomaly (3.9 um)4.54 K
Maximum Observed - Clear RTM BT (3.9 um)15.48 K
Maximum Observed BTD (3.9-10/11/12 um)11.21 K
Observed - Background BTD (3.9-10/11/12 um)2.57 K
BTD Anomaly (3.9-10/11/12 um)5.87 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.40 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.81
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power11.58 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.70°
Mean Solar Zenith Angle 33.10°
Mean Glint Angle79.80°
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) Sauk County, WI
NWS WFO Milwaukee/Sullivan WI
Identification MethodEnhanced Contextual (Cloud)
Mean Object Date/Time2026-04-21 18:41:21UTC
Radiative Center (Lat, Lon): 43.373333°, -89.749443°
Nearby Counties (meeting notification criteria):
  • Sauk County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power60.81 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)316.99 K
Observed - Background BT (3.9 um)12.81 K
BT Anomaly (3.9 um)15.29 K
Maximum Observed - Clear RTM BT (3.9 um)25.82 K
Maximum Observed BTD (3.9-10/11/12 um)21.01 K
Observed - Background BTD (3.9-10/11/12 um)11.49 K
BTD Anomaly (3.9-10/11/12 um)20.16 K
Similar Pixel Count0
BT Time Tendency (3.9 um)9.20 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.97
Fraction of Surrounding Red Channel Pixels that are Brighter0.99
Maximum Radiative Power60.81 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 52.40°
Mean Solar Zenith Angle 33.20°
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) Monona County, IA
NWS WFO Omaha/Valley NE
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:41:50UTC
Radiative Center (Lat, Lon): 41.918888°, -95.770554°
Nearby Counties (meeting notification criteria):
  • Monona County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power15.29 MW
Map:
Additional Information
Notification Status New Feature
Type of EventNominal Fire Risk
Event Priority Ranking4
Maximum Observed BT (3.9 um)318.34 K
Observed - Background BT (3.9 um)2.67 K
BT Anomaly (3.9 um)1.50 K
Maximum Observed - Clear RTM BT (3.9 um)17.41 K
Maximum Observed BTD (3.9-10/11/12 um)13.14 K
Observed - Background BTD (3.9-10/11/12 um)2.42 K
BTD Anomaly (3.9-10/11/12 um)2.94 K
Similar Pixel Count25
BT Time Tendency (3.9 um)1.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.34
Fraction of Surrounding Red Channel Pixels that are Brighter0.88
Maximum Radiative Power15.29 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 53.00°
Mean Solar Zenith Angle 30.70°
Mean Glint Angle78.50°
Water Fraction0.00
Total Pixel Area 6.70 km2
Latest Satellite Imagery:
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Possible Wildfire

Basic Information
State/Province(s) FL
Country/Countries United States
County/Locality(s) Putnam County, FL
NWS WFO Jacksonville FL
Identification MethodEnhanced Contextual (Clear)
Mean Object Date/Time2026-04-21 18:42:52UTC
Radiative Center (Lat, Lon): 29.562222°, -81.743889°
Nearby Counties (meeting notification criteria):
  • Putnam County (0.00 km)
Total Radiative Power Anomalyn/a
Total Radiative Power7.56 MW
Map:
Additional Information
Notification Status New Feature
Type of EventElevated Fire Risk (NWS/SPC) and Red Flag Warning (NWS), Known Incident: MONDEX 3 (HIGH, tdiff=0.082
Event Priority Ranking1
Maximum Observed BT (3.9 um)307.32 K
Observed - Background BT (3.9 um)2.53 K
BT Anomaly (3.9 um)1.30 K
Maximum Observed - Clear RTM BT (3.9 um)8.60 K
Maximum Observed BTD (3.9-10/11/12 um)8.24 K
Observed - Background BTD (3.9-10/11/12 um)1.85 K
BTD Anomaly (3.9-10/11/12 um)2.10 K
Similar Pixel Count24
BT Time Tendency (3.9 um)0.60 K
Image Interval5.00 minutes
Fraction of Surrounding LWIR Pixels that are Colder0.36
Fraction of Surrounding Red Channel Pixels that are Brighter1.00
Maximum Radiative Power7.56 MW
Maximum Radiative Power Uncertainty0.00 MW
Total Radiative Power Uncertainty0.00 MW
Mean Viewing Angle 35.40°
Mean Solar Zenith Angle 25.20°
Mean Glint Angle51.70°
Water Fraction0.00
Total Pixel Area 4.90 km2
Latest Satellite Imagery:
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